{"id":394,"date":"2006-11-14T22:19:12","date_gmt":"2007-10-08T10:49:42","guid":{"rendered":"http:\/\/sepira.dyndns.org\/wordpress\/?p=394"},"modified":"2006-11-14T22:19:12","modified_gmt":"2007-10-08T10:49:42","slug":"%ec%9e%94%ec%b0%a8-%ed%94%84%eb%a0%88%ec%9e%84-%ec%9e%ac%eb%a3%8c%ec%97%90-%eb%8c%80%ed%95%9c-%ec%86%8c%ea%b0%9c","status":"publish","type":"post","link":"http:\/\/sepira.dyndns.org\/wordpress\/?p=394","title":{"rendered":"\uc794\ucc28 \ud504\ub808\uc784 \uc7ac\ub8cc\uc5d0 \ub300\ud55c \uc18c\uac1c"},"content":{"rendered":"

\uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc7ac\ub8cc\ub85c\uc11c \uac00\uc7a5 \ub6f0\uc5b4\ub09c \uc18c\uc7ac(\u7d20\u6750)\ub294 \ubb34\uc5c7\uc77c\uae4c? \uc2a4\ud2f8, \uc54c\ubbf8\ub284, \ud2f0\ud0c0\ub284, \uc544\ub2c8\uba74 \uce74\ubcf8\uc77c\uae4c? \uc544\uc9c1 \uc77c\ubc18\ud654(\u4e00\u822c\u5316)\ub418\uc9c0\ub294 \uc54a\uc558\uc9c0\ub9cc \ud2b9\uc218\ud55c \uc18c\uc7ac\ub3c4 \uc788\ub2e4. \uc774 \ubb38\uc81c\ub294, “\ube44\ubc8c\ub9ac \ud790\uc988”\uc758 \uc0e4\ub17c(Shannon)\uc758 \ub300\uc5ed(\u4ee3\u5f79)\uc744 \ub204\uac00 \ud560 \uac83\uc778\uac00\ub9cc\ud07c \uc911\uc694\ud558\uc9c0\ub294 \uc54a\uaca0\uc9c0\ub9cc, \uc790\uc804\uac70 \uc911\ub3c5\uc790(\ub098\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\uc9c0\ub9cc)\uc5d0\uac8c \uc788\uc5b4\uc11c\ub294 \ub05d\uc5c6\ub294 \ub17c\uc7c1\uac70\ub9ac\ub97c \uc81c\uacf5\ud55c\ub2e4. <\/p>\n

\uc774 \uc2dc\ub9ac\uc988\ub294, \uc790\uc804\uac70\uc640 \uad00\ub828\ub41c \uc18c\uc7ac\uacf5\ud559\uc744 \uac80\ud1a0\ud558\uae30 \uc704\ud55c \uac83\uc774\ub2e4. \ub0b4\uc6a9\uc744 \uc774\ud574\ud558\uba74, \ud604\uc7ac \ud504\ub808\uc784\uc5d0 \uc0ac\uc6a9\ub418\uace0 \uc788\ub294 \uc8fc\uc694\ud55c \uc18c\uc7ac \uc804\ubd80\uc5d0 \ub300\ud55c \uc9c0\uc2dd\uc744 \uc5bb\uc744 \uc218\uac00 \uc788\uac8c \ub418\uace0, \ub610\ud55c \uc7a5\ub798 \uc5b4\ub5a4 \uc18c\uc7ac\ub97c \uae30\ub300\ud560 \uc218 \uc788\uc744 \uac83\uc778\uac00\uc5d0 \ub300\ud55c \ub2e4\uc18c\uc758 \uc804\ub9dd\uc744 \uc5bb\uc744 \uc218 \uc788\uac8c \ub420 \uac83\uc774\ub2e4. <\/p>\n

\ub610 \ud558\ub098\uc758 \ubaa9\uc801\uc740, \ucda9\ubd84\ud55c \uc9c0\uc2dd\uc774 \uc5c6\ub294 \uc0ac\ub78c\ub4e4\uc5d0\uac8c \uc790\uc804\uac70 \uc5c5\uacc4\uac00 \ubd88\uc5b4\ub123\ub294, \uba4b\uc788\ub294 \uac83\uac19\uc9c0\ub9cc \uac04\ud639 \uc624\ud574\ub97c \ubd88\ub7ec \uc77c\uc73c\ud0a4\ub294 \uc120\uc804\uc744 \uad6c\ubcc4\ud560 \uc218 \uc788\ub294 \ub208\uc744 \uc81c\uacf5\ud574 \uc8fc\ub294 \uac83\uc774\ub2e4. \uc804\ucc28\uc758 \uc7a5\uac11(\u88dd\u7532)\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc2e0\uc18c\uc7ac \ubcf4\ub784\ub9b0(Boralyn)\uc774 \uc0ac\uc6a9\ub418\uace0 \uc788\ub2e4\ub4e0\uac00, \ub85c\ucf13 \uacfc\ud559\uc790\uc5d0 \uc758\ud574 \uc124\uacc4\ub418\uc5c8\ub2e4, \ub294 \ub4f1\uc758 \uc120\uc804\ubb38\uad6c\ub294, \uc2e4\uc81c\ub85c\ub294 \uc790\uc804\uac70\uc640\ub294 \uc544\ubb34 \uad00\uacc4\ub3c4 \uc5c6\ub294 \uac83\uc774\ub2e4. \uc88b\uc740 \uc790\uc804\uac70\ub97c \uc124\uacc4\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc2e4\ud5d8\ubcf5\ub3c4 \ud544\uc694\uc5c6\ub2e4. \ud544\uc694\ud55c \uac83\uc740, \uc81c\ub300\ub85c \ub41c \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1\uacfc, \uc790\uc804\uac70\uc640 \ud0c0\ub294 \uc0ac\ub78c\uacfc\uc758 \uc778\uccb4\uacf5\ud559\uc801\uc778 \uad00\uacc4\uc5d0 \ub300\ud55c \uae4a\uc740 \uc9c0\uc2dd\ubfd0\uc774\ub2e4. <\/p>\n

\uba3c\uc800, \uc804\ud1b5\uc801\uc778 \ud504\ub808\uc784\uc740, \uacfc\uac70 100\ub144\uac04\uc5d0 \uac78\uccd0 \uac1c\ub7c9\uc5d0 \uac1c\ub7c9\uc744 \uac70\uce5c, \ub9e4\uc6b0 \uc9c4\ud654\ud55c \uad6c\uc870\ub77c\ub294 \uc810\uc744 \uc774\ud574\ud560 \ud544\uc694\uac00 \uc788\ub2e4. \ud504\ub808\uc784\uc758 \uc124\uacc4\ub97c \uac1c\ub7c9\ud558\uae30 \uc704\ud55c \uc2dc\ub3c4\ub294 \ub05d\uc5c6\uc774 \ud589\ud574\uc9c0\uace0 \uc788\uc9c0\ub9cc, \ub9ce\uc740 \uacbd\uc6b0, \uac1c\ub7c9\uc758 \uc131\uacfc\ub294 \ub9e4\uc6b0 \ubbf8\ubbf8\ud558\ub2e4. \ubcf4\ub2e4 \ub6f0\uc5b4\ub09c \ud504\ub808\uc784 \uc124\uacc4\ub294 \ub2e8\uc21c\ud55c \uac83\ucc98\ub7fc \ubcf4\uc774\uc9c0\ub9cc \uc2e4\uc81c\ub294 \uadf8\ub807\uc9c0 \uc54a\ub2e4. \uc18c\uc7ac\uc640 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1\uc758 \uc9c4\ubcf4\uc5d0 \ub530\ub77c \uc791\uc740 \uc9c4\ubcf4\ub294 \uc774\ub8e8\uc5b4\uc9c0\uace0 \uc788\uc9c0\ub9cc, \uba54\uc774\ucee4\uc758 \uc120\uc804\uacfc\ub294 \ub2ec\ub9ac \uc2e4\uc81c\ub294 \uc7a5\uc871\uc758 \ubc1c\uc804\uc740 \uc774\ub8e8\uc5b4\uc9c0\uc9c0 \uc54a\ub294\ub2e4. \uc790\uc804\uac70 \uc124\uacc4\ub97c \uc704\ud55c \uacfc\ud559\uc740 \ubcf5\uc7a1\ud558\uae30 \ub54c\ubb38\uc5d0, \uc5ec\uae30\uc5d0\uc11c \uadf8\uac83\uc5d0 \uad00\ud55c \ubaa8\ub4e0 \uac83\uc744 \uc124\uba85\ud558\ub294 \uac83\uc740 \ubd88\uac00\ub2a5\ud558\ub2e4. \ub300\uc2e0, \uadf8 \uc911 \uac00\uc7a5 \uc911\uc694\ud55c \uc694\uc18c\uc5d0 \ub300\ud574\uc11c \uc11c\uc220\ud558\uae30\ub85c \ud558\uaca0\ub2e4. <\/p>\n

\uc18c\uc7ac\uc758 \ubb3c\uc131(\u7269\u6027)\uc744 \uc774\ud574\ud558\ub294 \uac83\uc740 \uc18c\uc7ac \uadf8 \uc790\uccb4\ub97c \uc774\ud574\ud558\uae30 \uc704\ud574 \ubd88\uac00\uacb0\ud55c \uac83\uc774\ub2e4. \uc5ec\uae30\uc11c \ud55c \uac00\uc9c0, \ubb3c\uc131(\u7269\u6027)\uc5d0 \uad00\ud55c \uc6a9\uc5b4\ub4e4\uc774 \uc815\ud655\ud788 \uc0ac\uc6a9\ub418\uc9c0 \uc54a\uace0 \uc788\ub2e4\ub294 \uc810\uc740 \uc8fc\uc758\ud574\uc57c \ud55c\ub2e4. \uc774 \uc790\uc804\uac70\ub294 \ud2bc\ud2bc\ud558\ub2e4\ub4e0\uac00, \uc774 \uc790\uc804\uac70\ub294 11\uc885\uc758 \ud544\uc218 \ube44\ud0c0\ubbfc\uacfc \ubbf8\ub124\ub784\ub85c \ubcf4\uac15\ub418\uc5b4 \uc788\ub2e4, \ub294 \ub4f1\uc758 \uc758\ubbf8\ubd88\uba85\ud55c \uc804\ubb38\uc6a9\uc5b4\ub97c \uc5ec\ub7ec\ubd84\ub3c4 \ub4e4\uc740 \uc801\uc774 \uc788\uc744 \uac83\uc774\ub2e4. <\/p>\n

\uc774 \uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uba3c\uc800, \uc815\ud655\ud55c \uc6a9\uc5b4\ub97c, \uae30\uc220\uc801 \uad00\uc810 \ubc0f \uc790\uc804\uac70\uc5d0 \uc788\uc5b4\uc11c \uc5b4\ub5a4 \uc758\ubbf8\ub97c \uac00\uc9c0\ub294\uac00, \ub77c\ub294 \uad00\uc810\uc5d0\uc11c \uc124\uba85\ud558\uae30\ub85c \ud558\uaca0\ub2e4. \uc774\ud6c4\uc758 \uc7a5(\u7ae0)\uc5d0\uc11c\ub294, \uc2a4\ud2f8, \uc54c\ubbf8\ub284, \ud2f0\ud0c0\ub284, \uce74\ubcf8, \uadf8\ub9ac\uace0 \uadf8\uc678\uc758 \ub2e4\ub978 \uc18c\uc7ac\ub4e4\uc5d0 \ub300\ud574 \uac80\ud1a0\ud558\uaca0\ub2e4. \ubcf8\uc7a5(\u672c\u7ae0)\uc5d0\uc11c \uc5bb\uc740 \uc9c0\uc2dd\uc744 \uc774\ud6c4\uc758 \uc7a5(\u7ae0)\uc5d0\uc11c \ud65c\uc6a9\ud574 \uc8fc\uae30\ub97c \ubc14\ub780\ub2e4. <\/p>\n

\ud504\ub808\uc784\uc758 \uc18c\uc7ac\ub97c \uc120\ud0dd\ud558\uae30 \uc704\ud574\uc11c \ud544\uc694\ud55c \ubb3c\uc131(\u7269\u6027)\uc740 \ubb34\uc5c7\uc77c\uae4c? \uc774 \uc810\uc744 \uc774\ud574\ud558\uae30 \uc804\uc5d0, \ubb3c\uc131(\u7269\u6027)\uc5d0\ub294 3\uac00\uc9c0 \uc885\ub958\uac00 \uc788\uc74c\uc744 \uc54c\uc544 \uc8fc\uae30 \ubc14\ub780\ub2e4. <\/p>\n

\ubb3c\ub9ac\uc801 \uc131\uc9c8: \ubc00\ub3c4, \uc0c9, \uc804\ub3c4\uc131(\u50b3\u5c0e\u6027), \ud22c\uc790\uc131(\u900f\u78c1\u6027), \uc5f4\ud33d\ucc3d\uc131
\n\uae30\uacc4\uc801 \uc131\uc9c8: \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027), \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6), \uacbd\ub3c4(\u786c\u5ea6), \uac15\uc131(\u525b\u6027), \uc804\ub2e8\uac15\ub3c4(\u526a\u65b7\u5f3a\u5ea6), \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6), \uc778\ub3c4(\u976d\u5ea6)
\n\ud654\ud559\uc801 \uc131\uc9c8: \ubc18\uc751\uc131, \ub0b4\uc2dd\uc131(\u8010\u8755\u6027), \uc804\uae30\ud654\ud559 \ud3ec\ud150\uc15c, \ub0b4(\u8010)\ubc29\uc0ac\ub2a5\uc131, \ub0b4\uc0b0\uc131(\u8010\u9178\u6027), \ub0b4(\u8010)\uc54c\uce7c\ub9ac\uc131, \uc6a9\ud574\ub3c4 <\/p>\n

\ubc00\ub3c4\uc640 \ub0b4\uc2dd\uc131\uc774 \uc911\uc694\ud55c \uac83\uc740 \ub9d0\ud560 \ud544\uc694\ub3c4 \uc5c6\ub2e4. \uc5ed\uc73c\ub85c, \ud22c\uc790\uc131(\u900f\u78c1\u6027)\uc774\ub098 \ub0b4(\u8010)\ubc29\uc0ac\ub2a5\uc131\uc740 \ubcc4 \uad00\uacc4\uac00 \uc5c6\ub2e4. \ud558\uc9c0\ub9cc, \uae30\uacc4\uc801 \uc131\uc9c8\uc740 \uc804\ubd80 \uc911\uc694\ud558\ub2e4. \uc774\ub7f0 \ubb3c\uc131(\u7269\u6027)\ub4e4\uc740 \ub3c4\ub300\uccb4 \uc5b4\ub5a4 \uc758\ubbf8\ub97c \uac00\uc9c0\ub294\uac00. \uc774\ud558\uc5d0\uc11c \uc124\uba85\ud558\uae30\ub85c \ud558\uc790. <\/p>\n

1.1. \ubc00\ub3c4 Density <\/p>\n

\uba3c\uc800 \uac04\ub2e8\ud55c \uac83\ubd80\ud130 \uc2dc\uc791\ud558\uc790. \ubc00\ub3c4\ub294, \uc77c\uc815 \uccb4\uc801\ub2f9\uc758 \uc911\ub7c9\uc744 \uc758\ubbf8\ud55c\ub2e4. \uc608\ub97c \ub4e4\uba74, 6061 \uc54c\ubbf8\ub284\uc758 \ubc00\ub3c4\ub294 2.72, 4130 \uc2a4\ud2f8\uc740 7.85, 3\/2.5 \ud2f0\ud0c0\ub284\uc740 4.44\ub2e4. \uc989, \ud2f0\ud0c0\ub284\uc758 \ubc00\ub3c4\ub294 \uc2a4\ud2f8\uc758 \ubc18 \uc815\ub3c4, \uc54c\ubbf8\ub284\uc758 \ubc00\ub3c4\ub294 \uc2a4\ud2f8\uc758 1\/3 \uc815\ub3c4\ub2e4. \uc774\uac83\uc744 \uae30\uc900\uc73c\ub85c, \uac15\ub3c4(\u5f3a\u5ea6)\ub098 \uac15\uc131(\u525b\u6027)\ub4f1\uc758 \ub2e4\ub978 \ubb3c\uc131(\u7269\u6027)\uc5d0 \ub208\uc744 \ub3cc\ub824\ubcf4\uc790. \uc65c \uc54c\ubbf8\ub284\uc774 \uc2a4\ud2f8\uc758 1\/3\uc758 \ubc00\ub3c4\ub77c\uba74, \uc54c\ubbf8\ub284 \ud504\ub808\uc784\uc758 \uc911\ub7c9\uc740 \uc2a4\ud2f8 \ud504\ub808\uc784\uc758 \uc911\ub7c9\uc758 1\/3\uc774 \uc544\ub2cc \uac78\uae4c? \uc774 \uc758\ubb38\uc5d0 \ub300\ud55c \ub300\ub2f5\uc774 \uace7 \ub098\ud0c0\ub0a0 \uac83\uc774\ub2e4. <\/p>\n

1.2. \uac15\uc131(\u525b\u6027) Stiffness <\/p>\n

\uac15\uc131(\u525b\u6027)\uc758 \uce21\uc815\ub2e8\uc704\ub294 \ud0c4\uc131\uacc4\uc218, \ud639\uc740 “\uc601\ub960(\uf961)”\uc774\ub2e4. \ubc00\ub3c4\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c, \uc774\uac83\uc740 \ube44\uad50\uc801 \uc54c\uae30 \uc26c\uc6b4 \uac1c\ub150\uc774\ub2e4. \uc5b4\ub290 \uc815\ub3c4 \uc9c0\uc2dd\uc774 \uc788\ub294 \uc0ac\ub78c\uc774\ub77c\uba74, \ud504\ub808\uc784\uc758 \uac15\uc131(\u525b\u6027)\ubcf4\ub2e4 \uc624\ud788\ub824 \ud0c4\uc131\uacc4\uc218\uc5d0 \ub300\ud574 \uc774\uc57c\uae30\ud560 \uc9c0\ub3c4 \ubaa8\ub978\ub2e4. “\uc800 \uc790\uc804\uac70\uc758 \uae08\uc18d\uc740 \ubb34\uc9c0\ubb34\uc9c0\ud558\uac8c \ub531\ub531\ud558\ub124”\uac00 \uc544\ub2c8\ub77c, “\ub098\ub294 \uc800 \uc0cc\ub4dc\uc2a4\ud53c\ub4dc\uc7ac(\u6750)\uc758 \ud0c4\uc131\uacc4\uc218\uac00 \uc18c\uc815\uc758 \uc6a9\ub3c4\uc5d0 \uc801\uc808\ud558\ub2e4\uace0, \ub2e8\uc815\ud560 \uc218\ub294 \uc5c6\uc9c0\ub9cc, \ucd94\uce21\ud560 \uc218\ub294 \uc788\ub2e4”\ub77c\ub294 \uc2dd\uc73c\ub85c \ub9d0\uc774\ub2e4. \ud0c4\uc131\uacc4\uc218\ub77c\ub294 \uc6a9\uc5b4\ub97c \uc0ac\uc6a9\ud568\uc73c\ub85c\uc368 \uaf64 \ub611\ub611\ud55c \ucc99 \ud560 \uc218 \uc788\ub2e4. <\/p>\n

“\uc601\ub960(\uf961)”\uc740, \uac19\uc740 \uae08\uc18d\uc5d0 \uad00\ud574\uc11c\ub294, \uc5f4\ucc98\ub9ac\ub098 \ud569\uae08\uc758 \ubc30\ud569 \ube44\uc728\uc5d0 \uc0c1\uad00\uc5c6\uc774 \uc77c\uc815\ud558\ub2e4. \uc5f4\ucc98\ub9ac\ud55c \ud0d5\uac8c(Tange)\uc758 \ud504\ub808\uc2a4\ud2f0\uc9c0(Prestige) \ud29c\ube0c\uc758 \uac15\uc131(\u525b\u6027)\uc740 \uac19\uc740 \ud06c\uae30\uc758 \uc6a9\uc811\ud55c 1020 \uc2a4\ud2f8 \ud29c\ube0c\uc640 \ub3d9\uc77c\ud558\ub2e4. \uac19\uc740 \uc9c1\uacbd, \ub450\uaed8\uc758 6061 \uc54c\ubbf8\ub284 \ud29c\ube0c\uc758 \uac15\uc131(\u525b\u6027)\uc740 \uc5b8\uc81c\ub098 \ub3d9\uc77c\ud558\ub2e4. \ud558\uc9c0\ub9cc, \ub9ac\ud2ac\uc774\ub098 \uc0b0\ud654 \uc54c\ubbf8\ub284\uc744 \uc0ac\uc6a9\ud568\uc73c\ub85c\uc368, \uac15\uc131(\u525b\u6027)\uc740 \ubc14\ub014 \uc218 \uc788\ub2e4. <\/p>\n

1.3. \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027) Elongation <\/p>\n

\uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc740, \uc5b4\ub5a4 \uc18c\uc7ac\uac00 \uae68\uc9c8 \ub54c\uae4c\uc9c0 \uc5b4\ub290 \uc815\ub3c4 \ub298\uc5b4\ub098\ub294\uac00, \uc989, \uc18c\uc7ac\uc758 \uc5f0\uc131(\u5ef6\u6027)\uc744 \uc758\ubbf8\ud55c\ub2e4. \uc5f0\uc131(\u5ef6\u6027)\uc774\ub780, \uc18c\uc7ac\uc5d0 \uae08\uc774 \uac00\uc9c0 \uc54a\ub294 \ud55c\ub3c4 \ub0b4\uc5d0\uc11c, \uc18c\uc131(\u5851\u6027)\ubcc0\ud654\ud558\ub294 \ub2a5\ub825\uc774\ub2e4. \uadf8\ub7f0\ub370, \uc18c\uc131(\u5851\u6027)\ubcc0\ud654\ub780 \ubb34\uc5c7\uc778\uac00. \uc774\uac83\uc740, \uc18c\uc7ac\uc5d0 \ubd80\ud558(\u8ca0\u8377)\ub97c \uac00\ud558\uba74 \ubcc0\ud615\ud574\uc11c, \ubd80\ud558(\u8ca0\u8377)\uac00 \uc5c6\uc5b4\uc838\ub3c4 \uc6d0\ub798 \ud615\ud0dc\ub300\ub85c \ub3cc\uc544\uac00\uc9c0 \uc54a\ub294(\uc989 \uad7d\uc5b4\ubc84\ub9ac\ub294) \uac83\uc744 \uc758\ubbf8\ud55c\ub2e4. \uceac\ub77c\uba5c \uacfc\uc790\ub294 \uc5f0\uc131\uc740 \ud06c\ub2e4. \uc720\ub9ac\ub294 \uc5f0\uc131\uc774 \ub9e4\uc6b0 \uc57d\ud574 \uc804\ud600 \ub298\uc5b4\ub098\uc9c0 \uc54a\ub294\ub2e4. \uc720\ub9ac\ucc98\ub7fc \ubd80\ub7ec\uc9c0\ub294 \uc77c\uc740 \uc790\uc804\uac70\uc5d0\ub294 \uc788\uc5b4\uc11c\ub294 \uc548\ub41c\ub2e4. \uc790\uc804\uac70\uc5d0 \uc788\uc5b4\uc11c \ud544\uc694\ud55c \uac83\uc740, \ubd80\ub7ec\uc9c0\uae30 \uc804\uc5d0 \uad7d\ub294 \uc131\uc9c8\uc774\ub2e4. \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc740, \uc18c\uc7ac\ub97c \ud3c9\uac00\ud558\ub294 \ub370 \uc788\uc5b4\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc131\uc9c8\uc774\ub2e4. \uc774\ud6c4\uc758 \uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uac01\uac01\uc758 \uc18c\uc7ac\ub97c \ub2e4\ub8f0 \ub54c \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc5d0 \ub300\ud574\uc11c\ub3c4 \uace0\ucc30\ud558\uae30\ub85c \ud55c\ub2e4. <\/p>\n

1.4. \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6) Tensile Strength <\/p>\n

\uc774\uac83\ub3c4 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc131\uc9c8\uc774\ub2e4. \uac15\ud558\uba74 \uac15\ud560\uc218\ub85d \uc88b\uc740 \uac83\uc740 \uae30\ubcf8\uc801\uc73c\ub85c\ub294 \uc633\uc9c0\ub9cc, \uadf8\uac83\uc740 \ub2e4\ub978 \ubb3c\uc131(\u7269\u6027)\ub3c4 \ucda9\ubd84\ud788 \uace0\ub824\ud55c \uacbd\uc6b0\uc758 \uc598\uae30\ub2e4. \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6)\ub77c\ub294 \uc6a9\uc5b4\ub294, \uc18c\uc7ac\uac00 \uad7d\uc5b4\uc11c \uacb0\uad6d\uc740 \ubd80\ub7ec\uc9c0\ub294 \ud55c\uacc4\ub97c, \uc18c\uc7ac\ub97c \uc591\uce21\uc5d0\uc11c \uc7a1\uc544\ub2f9\uae30\ub294 \uac83\uc5d0 \uc758\ud574 \uce21\uc815\ud558\uae30 \ub54c\ubb38\uc5d0 \ubd99\uc5ec\uc9c4 \uc774\ub984\uc774\ub2e4. <\/p>\n

\uc790\uc804\uac70\ub294 \ubcf4\ud1b5\uc740 \uc2e0\uc7a5\ubd80\ud558(\u4f38\u5f35\u8ca0\u8377)\uac00 \ucee4\uc11c \ubd80\uc11c\uc9c0\ub294 \uacbd\uc6b0\ub294 \uac70\uc758 \uc5c6\uae30 \ub54c\ubb38\uc5d0, \ubd88\ud544\uc694\ud55c \uc2e4\ud5d8\uc774\ub77c\uace0 \uc0dd\uac01\ud560 \uc218\ub3c4 \uc788\ub2e4. \uadf8\ub7ec\ub098, \ub2e4\ud589\ud788 \uc774 \uc2e4\ud5d8\uc740 \uc18c\uc7ac\uc758 \uac70\ub3d9\uc744 \ud655\uc778\ud558\ub294 \ub370 \uc801\uc808\ud55c \uc2e4\ud5d8\uc774\ub2e4. <\/p>\n

\uc2e0\uc7a5(\u4f38\u5f35) \uc2e4\ud5d8\uc740 \uc18c\uc7ac\uc758 \uac15\ub3c4(\u5f3a\u5ea6), \uc5f0\uc131, \uac15\uc131(\u525b\u6027) \ubc0f \uc5f4\ucc98\ub9ac, \uc5ec\ud0c0 \ucc98\ub9ac\ub97c \uc704\ud574 \uc801\uc808\ud55c \uc870\uac74\uc744 \uc870\uc0ac\ud558\uae30 \uc704\ud574 \ud589\ud574\uc9c4\ub2e4. \ub610\ud55c, \uae08\uc18d\uc758 \uc555\ucd95\uac15\ub3c4(\u5f3a\u5ea6)\ub294 \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6)\uc640 \ubc00\uc811\ud55c \uad00\uacc4\uac00 \uc788\ub294 \uacbd\ud5a5\uc774 \uc788\ub2e4. <\/p>\n

\uc2e0\uc7a5(\u4f38\u5f35)\uc2e4\ud5d8\uc744 \ud558\uae30 \uc704\ud574\uc11c\ub294, \ub2e8\uba74\uc801\uc744 \uc774\ubbf8 \uc54c\uace0 \uc788\ub294 \uc18c\uc7ac\uc758 \uc591 \ub05d\uc744 \uace0\uc815\ud574, \uc591\ubc29\ud5a5\uc73c\ub85c \uc7a1\uc544\ub2f9\uae34\ub2e4. \uc751\ub825(\u61c9\u529b)(\ub2e8\uc704\uba74\uc801\ub2f9 \ud798)\uc774 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c, \uc18c\uc7ac\uc758 \ubcc0\ud615(\uc751\ub825(\u61c9\u529b)\uc5d0 \uc758\ud55c \uce58\uc218\uc758 \ubcc0\ud654)\ub3c4 \uc99d\uac00\ud55c\ub2e4. \uc774 \uad00\uacc4\ub97c \uadf8\ub798\ud504\ub85c \uadf8\ub9ac\uba74, \ubd80\ud558(\u8ca0\u8377)-\uc5f0\uc7a5\uace1\uc120(\u5ef6\u9577\u66f2\u7dda)\uc774\ub77c\ub294 \uad00\uacc4\ub97c \uc5bb\uc744 \uc218 \uc788\ub2e4. \uc774\uac83\uc744 \uac00\uc9c0\uace0, \uc18c\uc7ac\uc758 \uac15\ubcf5\uc810(\u964d\u4f0f\u70b9)\uacfc \uadf9\ud55c\uac15\ub3c4(\u6975\u9650\u5f3a\u5ea6)\ubfd0\ub9cc \uc544\ub2c8\ub77c, \uc704\uc5d0\uc11c \uc5b8\uae09\ud55c \uba87\uac00\uc9c0 \ubb3c\uc131(\u7269\u6027)\ub3c4 \uc54c \uc218 \uc788\ub2e4. <\/p>\n

\uac15\ubcf5\uc810(\u964d\u4f0f\u70b9)\uc774\ub780, \uc18c\uc7ac\uac00 \ub298\uc5b4\ub09c \ucc44 \uc6d0\ub798\ub300\ub85c \ub3cc\uc544\uac00\uc9c0 \uc54a\ub294 \ud55c\uacc4\ub97c \ub9d0\ud558\uace0, \uadf9\ud55c\uac15\ub3c4(\u6975\u9650\u5f3a\u5ea6)\ub780, \uc18c\uc7ac\uac00 \uacac\ub514\ub294 \ucd5c\ub300\uc758 \ubd80\ud558(\u8ca0\u8377)\ub85c, \ubcf4\ud1b5\uc740 \uae08\uc774 \uac00\ub294 \ubd80\ud558(\u8ca0\u8377)\uc640 \uac70\uc758 \uac19\uc740 \uac1c\ub150\uc774\ub2e4. <\/p>\n

1.5. \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) Fatigue Strength <\/p>\n

\ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) \ub610\ud55c \ub530\ub978 \ubb3c\uc131(\u7269\u6027)\uacfc \ud568\uaed8 \uace0\ub824\ud574\uc57c \ud560 \uc911\uc694\ud55c \uc131\uc9c8\uc774\ub2e4. \ud53c\ub85c\uc5d0 \uc758\ud55c \ud30c\uad34\ub294, \uc18c\uc7ac\uc5d0 \ub300\ud55c \uc815\uc801\uc2e0\uc7a5\uac15\ub3c4(\u975c\u7684\u4f38\u5f35\u5f3a\u5ea6) \uc774\ud558\uc758 \ucd5c\ub300\uce58\ub97c \uac00\uc9c0\ub294 \uc751\ub825(\u61c9\u529b)\uc744 \uc8fc\uae30\uc801\uc73c\ub85c \uac00\ud560 \uacbd\uc6b0\uc5d0 \uc0dd\uae34\ub2e4. \ubc18\ubcf5\ud574\uc11c \uac00\ud574\uc9c0\ub294 \uc2a4\ud2b8\ub808\uc2a4\ub294, \uaf2c\ubd88\uaf2c\ubd88\ud55c \uae38\uc744 \uc624\ub7ab\ub3d9\uc548 \ub2ec\ub9b4 \uacbd\uc6b0 \uc790\uc804\uac70\uc5d0 \uac00\ud574\uc9c0\ub294 \uc9c4\ub3d9\uc774\ub098 \ucda9\uaca9\uacfc \ube44\uc2b7\ud558\uae30 \ub54c\ubb38\uc5d0, \uc774\uac83\uc740 \uc0c1\ub2f9\ud788 \uc758\ubbf8\uc788\ub294 \uc2e4\ud5d8\uc774\ub2e4. <\/p>\n

\ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) \uc790\uccb4\ub294, \uc18c\uc7ac\uac00 \uc5b4\ub290 \uc815\ub3c4 \ud68c\uc218\uc758 \ubd80\ud558(\u8ca0\u8377)\ub97c \ubc1b\uc73c\uba74 \ud30c\uad34\ub418\ub294\uac00\ub97c \uce21\uc815\ud558\ub294 \uac83\uc774\ub2e4. \uc5ec\uae30\uc11c \ubb38\uc81c\uac00 \ub418\ub294 \uac83\uc740, \uc2e4\ud5d8\uc744 \uc815\ud655\ud558\uac8c \uc124\uacc4\ud558\ub294 \uc77c\uc774\ub2e4. \uc790\uc804\uac70\ub77c\ub294 \ubb3c\uac74\uc740 \ubcf5\uc7a1\ud574\uc11c, \ud53c\ub85c\ub97c \uce21\uc815\ud558\ub294 \ud45c\uc900\uc801\uc778 \uc2e4\ud5d8\uc740 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294\ub2e4. \ub610 \ud55c \uac00\uc9c0 \ubb38\uc81c\ub294, \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) \uc2e4\ud5d8\uc740 \ub3d9\uc77c\ud55c \uc2a4\ud2b8\ub808\uc2a4\ub97c \uc8fc\uae30\uc801\uc73c\ub85c \uac00\ud558\ub294 \uac83\uc778\ub370 \ube44\ud574\uc11c, \uc2e4\uc81c \uc8fc\ud589\ud560 \uacbd\uc6b0 \uc790\uc804\uac70\uc758 \uac01 \ubd80\ubd84\uc5d0 \uac00\ud574\uc9c0\ub294 \ubd80\ud558\ub294 \uade0\ub4f1\ud558\uc9c0 \uc54a\ub2e4\ub294 \ub370 \uc788\ub2e4. <\/p>\n

\uc2a4\ud2f8\uacc4(\u7cfb)\uc758 \ud569\uae08\uc774\ub098 \ud2f0\ud0c0\ub284\uc5d0\ub294, \ubd80\ud558\uac00 \uc544\ubb34\ub9ac \ubc18\ubcf5\ub418\uc5b4\ub3c4 \ud30c\uad34\ub418\uc9c0 \uc54a\ub294 \ubd80\ud558 \ub808\ubca8(\ud53c\ub85c\ud55c\uacc4)\uc774 \uc874\uc7ac\ud55c\ub2e4. \uc54c\ubbf8\ub284\uc774\ub098 \ub9c8\uadf8\ub124\uc298\uc5d0\ub294 \uc774\ub7f0 \ub808\ubca8\uc774 \uc5c6\ub2e4. \uc989, \uc791\uc740 \ubd80\ud558\ub77c\ub3c4 \uc5ec\ub7ec\ubc88 \uac00\ud574\uc9c0\uba74 \uc774 \uae08\uc18d\ub4e4\uc740 \ubd80\ub7ec\uc9c8 \uc218 \uc788\ub2e4. <\/p>\n

1.6. \uc778\ub3c4(\u976d\u5ea6) Tougfness <\/p>\n

\uc774\uac83\uc740, \uc18c\uc7ac\uac00 \ud30c\uad34\ub418\uae30 \uc804\uc5d0 \uc5d0\ub108\uc9c0\ub97c \ud761\uc218\ud574\uc11c \uc18c\uc131(\u5851\u6027)\ubcc0\ud654\ub97c \uc77c\uc73c\ud0a4\ub294 \ub2a5\ub825\uc744 \uc758\ubbf8\ud55c\ub2e4. \uac15\uc778\ud55c \uae08\uc18d\uc740 \uc5f0\uc131(\u5ef6\u6027)\uc774 \uc788\uc5b4\uc11c, \ubd80\ub7ec\uc9c0\uae30 \uc804\uc5d0 \uad6c\ubd80\ub7ec\uc9c4\ub2e4. \uc774\uac83\uc740, \uae08\uc774 \uac00 \uc788\ub294 \uacbd\uc6b0\uc5d0 \ud2b9\ud788 \ud604\uc800\ud558\uac8c \ub098\ud0c0\ub09c\ub2e4. \uc790\uc804\uac70\uc758 \ud504\ub808\uc784\uc5d0\uac8c \uc788\uc5b4\uc11c, \ubd80\ub7ec\uc9c0\uae30 \uc804\uc5d0 \uad6c\ubd80\ub7ec\uc838 \uc704\ud5d8\uc744 \uacbd\uace0\ud574 \uc8fc\ub294 \uac83\uc740 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc694\uad6c\uc0ac\ud56d\uc774\uae30 \ub54c\ubb38\uc5d0, \uc778\ub3c4(\u976d\u5ea6)\ub294 \ub9e4\uc6b0 \uc911\uc694\ud55c \ud56d\ubaa9\uc774\ub2e4. <\/p>\n

\uc778\ub3c4(\u976d\u5ea6)\ub294 \ubcf5\uc7a1\ud55c \uc131\uc9c8\uc774\ub2e4. \uce21\uc815 \ubc29\ubc95\uc740 \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc9c0\ub9cc, \uadf8 \uc911 \uba87 \uac00\uc9c0\ub294 \uc790\uc804\uac70\uc5d0 \uc801\uc6a9\ud560 \uc218 \uc788\uace0, \uba87 \uac00\uc9c0\ub294 \uc801\uc6a9\ud560 \uc218 \uc5c6\ub2e4. \uc778\ub3c4(\u976d\u5ea6)\ub294 \uce74\ubcf8\uc5d0 \uad00\ud574 \ub17c\ud560 \ub54c \uc911\uc694\ud55c \ud56d\ubaa9\uc774\ubbc0\ub85c, \uac70\uae30\uc5d0\uc11c \uc880 \ub354 \uc790\uc138\ud788 \ub17c\uc758\ud558\ub3c4\ub85d \ud558\uaca0\ub2e4. <\/p>\n

1.7. \uc644\uc804\uc131\uc758 \ucd94\uad6c The Search for Perfection <\/p>\n

1\uc7a5(\u7ae0)\uc758 \ucd5c\ucd08\uc758 \uc9c8\ubb38, “\uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc7ac\ub8cc\ub85c\uc11c \uac00\uc7a5 \ub6f0\uc5b4\ub09c \uc18c\uc7ac(\u7d20\u6750)\ub294 \ubb34\uc5c7\uc77c\uae4c?”\uc5d0 \ub300\ud55c \ub300\ub2f5\uc740, \uac01 \uc18c\uc7ac\ub4e4\uc774 \uc804\ubd80 \uc7a5\uc810\uacfc \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\ub2e4\ub294 \uac83\uc774\ub2e4. \ud30c\uad34\ub418\ub294 \uc870\uac74\uc740 \uc18c\uc7ac\uc5d0 \ub530\ub77c\uc11c \ud06c\uac8c \ub2e4\ub974\uae30 \ub54c\ubb38\uc5d0 \ub2e4\uc591\ud55c \uc18c\uc7ac\ub97c \ube44\uad50\ud574 \ud504\ub808\uc784\uc744 \uc124\uacc4\ud558\ub294 \uac83\uc740 \uc26c\uc6b4 \uc77c\uc774 \uc544\ub2c8\ub2e4. \uac70\uae30\uc5d0, \uc6a9\uc811, \uc811\ucc29, \uc808\uc0ad, \ub9c8\ubb34\ub9ac \ub4f1\uc758 \ubc29\ubc95\ub3c4 \uac01 \uc18c\uc7ac\ub9c8\ub2e4 \ub2e4\ub974\ub2e4. \ud558\uc9c0\ub9cc, \uac00\uc7a5 \uace4\ub780\ud55c \uac83\uc740, \uad11\uace0\uc5d0 \uc0ac\uc6a9\ub418\uace0 \uc788\ub294 \ud2c0\ub9b0 \uc815\ubcf4\ub97c \uc815\ud655\ud558\uac8c \uac04\ud30c\ud558\ub294 \uac83\uc774\ub2e4. \uc774 \uc2dc\ub9ac\uc988\ub97c \uc77d\uace0 \ub098\uba74 \uc624\ud788\ub824 \uc5ec\ub7ec\ubd84\uc740 \ub354\uc6b1 \ud63c\ub780\uc5d0 \ube60\uc9c8 \uc9c0\ub3c4 \ubaa8\ub978\ub2e4. <\/p>\n

2. \uc2a4\ud2f8\uc774\uc57c \ub9d0\ub85c \uc9c4\uc9dc\ub2e4 Steel is Real <\/p>\n

“\ucf54\ub09c\uc544, \uba3c \uc61b\ub0a0 \ub545 \uc704\uc5d0\ub294 \uac70\uc778\ub4e4\uc774 \uc0b4\uace0 \uc788\uc5c8\ub2e4. \uadf8\ub9ac\uace0 \ud63c\ub3c8\uc758 \uc554\ud751 \uc18d\uc5d0\uc11c \uadf8\ub4e4\uc740 \ud06c\ub86c(Crom, \uc5ed\uc8fc: \uc2e0(\u795e))\uc744 \uc18d\uc5ec\uc11c \ucca0(\u9435)\uc758 \ub9c8\uc220\uc744 \ud6d4\ucce4\ub2e4. \ud06c\ub86c\uc740 \ubd84\ub178\ud588\uace0, \ub545\uc774 \ud754\ub4e4\ub838\ub2e4. \ubd88\uacfc \ud3ed\ud48d\uc774 \uac70\uc778\ub4e4\uc744 \uc4f0\ub7ec\ud2b8\ub838\ub2e4…\ud558\uc9c0\ub9cc, \uadf8 \uc640\uc911\uc5d0 \uc2e0\ub4e4\uc740 \ucca0\uc758 \ube44\ubc00\uc744 \uc78a\uc5b4\ubc84\ub9ac\uace0\ub294 \uc804\uc7a5(\u6230\u5834)\uc5d0 \ub0a8\uaca8\ub193\uc740 \ucc44 \ub5a0\ub098\ubc84\ub838\ub2e4. \uadf8\ub9ac\uace0 \uadf8\uac83\uc744 \ubc1c\uacac\ud55c \uac83\uc740 \uc2e0\ub3c4 \uc544\ub2c8\uace0 \uac70\uc778\ub3c4 \uc544\ub2c8\uace0, \ubc14\ub85c \uc6b0\ub9ac \uc778\uac04\ub4e4\uc774\uc5c8\ub2e4. \ucca0\uc758 \ube44\ubc00\uc740 \ud56d\uc0c1 \uc218\uc218\uaed8\ub07c\uc5d0 \uc313\uc5ec \uc788\ub2e4. \ucf54\ub09c, \ub108\ub294 \uadf8 \ube44\ubc00\uc744 \ubc30\uc6cc\uc57c \ud55c\ub2e4. \ub0a8\uc790\ub3c4 \uc5ec\uc790\ub3c4 \ub3d9\ubb3c\ub3c4 \ubbff\uc744 \uc218 \uc5c6\uc9c0\ub9cc, \ucca0\ub9cc\uc740 \ubbff\uc744 \uc218 \uc788\uae30 \ub54c\ubb38\uc774\ub2e4.”(\uc601\ud654 \ucf54\ub09c(Conan the Barbarian) \uc911\uc5d0\uc11c, \ucf54\ub09c\uc758 \uc544\ubc84\uc9c0) <\/p>\n

\ud504\ub808\uc784 \ube4c\ub354\ub4e4\uc740 \uc61b\ub0a0\ubd80\ud130 \uc2a4\ud2f8\uc758 \ube44\ubc00\uc744 \uc54c\uace0 \uc788\uc5c8\ub2e4. \uc0ac\uc2e4, \uc2a4\ud2f8\uc740 \ub2e4\ub978 \uc5b4\ub290 \uc18c\uc7ac\ub4e4\ubcf4\ub2e4 \ud504\ub808\uc784 \uc18c\uc7ac\ub85c \ub9ce\uc774 \uc0ac\uc6a9\ub418\uace0 \uc788\uc73c\uba70, \ub2e4\ub978 \uc18c\uc7ac\ub4e4\ubcf4\ub2e4 \ud504\ub808\uc784 \uc7ac\ub8cc\ub85c\uc11c\uc758 \uc5ed\uc0ac\uac00 50\ub144 \uc815\ub3c4 \uae38\ub2e4. 2\uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uc2a4\ud2f8\uc740 \ubb34\uc5c7\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\ub294\uac00, \uc790\uc804\uac70 \ud504\ub808\uc784 \uc7ac\ub8cc\ub85c\uc11c \uc2a4\ud2f8\uc758 \uc7a5\uc810\uacfc \ub2e8\uc810, \ub4f1\uc5d0 \uad00\ud574 \uc790\uc138\ud788 \uc11c\uc220\ud558\ub3c4\ub85d \ud558\uaca0\ub2e4. \ud558\uc9c0\ub9cc, \uadf8 \uc804\uc5d0 1\uc7a5(\u7ae0)\uc744 \ub2e4\uc2dc \ud55c \ubc88 \uc77d\uace0 \uc6a9\uc5b4\uc5d0 \uc775\uc219\ud574\uc9c0\uae30\ub97c \ubd80\ud0c1\ud55c\ub2e4. <\/p>\n

\uc2a4\ud2f8\uc758 \uc131\ubd84\uc740 \ub300\ubd80\ubd84\uc774 \ucca0(\uc6d0\uc18c\uae30\ud638Fe\ub294 \ub77c\ud2f4\uc5b4\uc758 ferrum\uc5d0\uc11c \uc720\ub798)\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4. \uae08\uc18d\uc740 \ud06c\uac8c, \ucca0\uae08\uc18d\uacfc \ube44\ucca0\uae08\uc18d\uc73c\ub85c \uad6c\ubcc4\ub41c\ub2e4. \ub450\ub9d0\ud560 \ud544\uc694\ub3c4 \uc5c6\uc774, \uc54c\ubbf8\ub284\uacfc \ud2f0\ud0c0\ub284\uc740 \ube44\ucca0\uae08\uc18d\uc774\ub2e4. \uc2a4\ud2f8\uc740 \uc9c0\uac01\uc911\uc5d0 4\ubc88\uc9f8\ub85c \ub9ce\uc774 \uc874\uc7ac\ud558\ub294 \uc6d0\uc18c\uc774\ubbc0\ub85c, \uc790\uc804\uac70 \ud504\ub808\uc784\uc744 \ub9cc\ub4dc\ub294 \ub370 \ud544\uc694\ud55c \ucca0\uc774 \uace0\uac08\ub418\ub294 \uc77c\uc740 \uc5c6\uc744 \uac83\uc774\ub2e4(\ud06c\ub86c\uc774\ub098 \ubab0\ub9ac\ube0c\ub374\uc758 \uacbd\uc6b0\ub294 \uc0ac\uc815\uc774 \ub2e4\ub974\ub2e4). \ud558\uc9c0\ub9cc \uc9c0\uad6c\uc0c1\uc5d0\ub294 \uc6b4\uc11d \uc774\uc678\uc5d0\ub294 \uc21c\ucca0(\u7d14\u9435)\ub85c\uc11c \uc874\uc7ac\ud558\ub294 \uac83\uc740 \ub4dc\ubb3c\uace0, \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0\ub294 \ub9c8\uadf8\ub124\uc0ac\uc774\ud2b8(4\uc0b0\ud654\ucca0: Fe3O4), \ud5e4\ub9c8\ud0c0\uc774\ud2b8(3\uc0b0\ud6542\ucca0: Fe2O3), \uc2dc\ub4dc\ub77c\uc774\ud2b8(\ud0c4\ud654\ucca0: FeCO3), \ud53c\ub77c\uc774\ud2b8(\ud669\ud654\ucca0: FeS2), \ub4f1\uc758 \ud615\ud0dc\ub85c \uc874\uc7ac\ud55c\ub2e4. <\/p>\n

\uadf8\ub7fc \uc6d0\uad11\uc73c\ub85c\ubd80\ud130 \uc2a4\ud2f8\uc744 \ub9cc\ub4e4\uae30 \uc704\ud574\uc11c\ub294 \uc5b4\ub5a4 \uacfc\uc815\uc774 \ud544\uc694\ud55c\uac00? \uc6d0\uc11d\uc744 \ub179\uc5ec\uc11c \uc5ec\ub7ec \uc6d0\uc18c\ub4e4\uc744 \ub354\ud588\ub2e4\ub9ac \ube90\ub2e4\ub9ac \ud568\uc73c\ub85c\uc368 \ub9cc\ub4e4\uc5b4\uc9c4\ub2e4(\uc2e4\uc81c \uacfc\uc815\uc740 \ubc1c\uc5f4(\u767c\u71b1)\ubc18\uc751 \ub4f1 \ub9e4\uc6b0 \ubcf5\uc7a1\ud558\uc9c0\ub9cc \uc5ec\uae30\uc11c\ub294 \ub354 \uc774\uc0c1 \uc5b8\uae09\ud558\uc9c0 \uc54a\uae30\ub85c \ud55c\ub2e4). <\/p>\n

\uc790\uc804\uac70 \uc5c5\uacc4\uc5d0\uc11c \ud1b5\uc0c1 \ud06c\ub85c\ubab0\ub9ac(Cro-Moli)\ub77c\uace0 \ubd88\ub9ac\ub294 4130\uc2a4\ud2f8\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uc131\ubd84\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\ub2e4. <\/p>\n

o.\ud0c4\uc18c: 0.23-0.33%
\no.\ub9dd\uac04: 0.4-0.6%
\no.\ud06c\ub86c: 0.8-1.1%
\no.\ubab0\ub9ac\ube0c\ub374: 0.15-0.25%
\no.\uc778: 0.04%
\no.\uc720\ud669: 0.04%
\no.\uc2e4\ub9ac\ucf58: 0.2-0.35%
\no.\ucca0: \ub098\uba38\uc9c0 95% \uc774\uc0c1 <\/p>\n

\uc218\ubc31 \uc885\ub958\uac00 \ub118\ub294 \uc2a4\ud2f8\uc758 \ud569\uae08 \uc911\uc5d0\uc11c 4130\uc774 \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\uace0 \uc788\ub294 \uc774\uc720\ub85c\uc11c, \uc608\ub97c \ub4e4\uba74, \uc6a9\uc811\uacfc \uc131\ud615\uc774 \uc6a9\uc774\ud55c \uc810, \uac15\ub3c4(\u5f3a\u5ea6), \uc5f0\uc131(\u5ef6\u6027), \uc778\ub3c4(\u976d\u5ea6)\uac00 \ub6f0\uc5b4\ub09c \uc810\uc744 \ub4e4 \uc218 \uc788\ub2e4. \uc2fc \uc790\uc804\uac70\uc758 \uacbd\uc6b0, 1020 \uc2a4\ud2f8\uc774\ub77c\ub294 \uc18c\uc7ac\ub85c \ub9cc\ub4dc\ub294 \uacbd\uc6b0\uac00 \uc788\ub294\ub370, \uc774\uac83\uc740 \uc18c\uc704 \ud0c4\uc18c\uac15(\u70ad\u7d20\u92fc)\uc73c\ub85c, \ud06c\ub85c\ubab0\ub9ac\uc640 \ube44\uad50\ud558\uba74 \uac15\ub3c4(\u5f3a\u5ea6)\uac00 \ud604\uc800\ud558\uac8c \ub5a8\uc5b4\uc9c4\ub2e4. <\/p>\n

4130\uc774\ub77c\ub294 \ubc88\ud638\uc758 \uc758\ubbf8\ub97c \uc124\uba85\ud558\uc790\uba74, \uc774\uac83\uc740 \uc790\ub3d9\ucc28\uae30\uc220\uc790\ud611\ud68c(Society of Automotive Engineers)\uc640 \ubbf8\uad6d\ucca0\uac15\ud611\ud68c(American Iron and Steel Institute)\uc5d0\uc11c \uc815\ud574\uc9c4\ub2e4. 41xx\uc740 \ud06c\ub85c\ubab0\ub9ac, 10xx\uc740 \ud0c4\uc18c\uac15(\ud06c\ub85c\ubab0\ub9ac\uc5d0 \ube44\uad50\ud574\uc11c, \ubc30\ud569\ubb3c\uc774 \uc801\uace0, \uc800\uac15\ub3c4(\u5f3a\u5ea6), \uc800\uac00\uaca9)\uc744 \ub098\ud0c0\ub09c\ub2e4. \uccab\ubc88\uc9f8 \uc218\uc790\ub294 \uc2a4\ud2f8\uc758 \uc885\ub958\ub97c \ub098\ud0c0\ub0b8\ub2e4. \uc608\ub97c \ub4e4\uba74, 1\uc774 \ud0c4\uc18c, 2\uac00 \ub2c8\ucf08, 3\uc774 \ub2c8\ucf08\uacfc \ud06c\ub86c, 4\uac00 \ub2c8\ucf08, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, 5\uac00 \ud06c\ub86c, \ub4f1\ub4f1\ub4f1. \uc67c\ucabd\uc5d0\uc11c \ub450\ubc88\uc9f8 \uc218\uc790\ub294 \ud569\uae08\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c4\ub2e4. 4130\uc758 \uacbd\uc6b0, \ud569\uae08 \uc911\uc5d0 \ud3ec\ud568\ub418\uc5b4 \uc788\ub294 \ud06c\ub86c\uacfc \ubab0\ub9ac\ube0c\ub374\uc758 \ube44\uc728\uc744 \ub098\ud0c0\ub0b8\ub2e4. \ub9c8\uc9c0\ub9c9 2\uc790\ub9ac \uc218\uc790\ub294, 1\/100% \ub2e8\uc704\ub85c \ud0c4\uc18c\uc758 \ube44\ud569\uc744 \ub098\ud0c0\ub0b8\ub2e4. 4130\uc758 \uacbd\uc6b0\ub294 0.3%\ub97c \uc758\ubbf8\ud55c\ub2e4. <\/p>\n

\ubaa8\ub4e0 \ud06c\ub85c\ubab0\ub9ac\uac00 4130\uc778 \uac83\uc740 \uc544\ub2c8\uc9c0\ub9cc, \uc5ec\uae30\uc5d0\uc11c\ub294 \ud06c\ub85c\ubab0\ub9ac\uc640 4130\uc744 \uac19\uc740 \uc758\ubbf8\ub85c \uc0ac\uc6a9\ud558\uae30\ub85c \ud558\uc790. \ud06c\ub85c\ubab0\ub9ac\ub294 \uace0\ud488\uc9c8\uc758 \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc2a4\ud2f8\ub85c\uc11c\ub294 \uc555\ub3c4\uc801\uc778 \uc170\uc5b4\ub97c \ucc28\uc9c0\ud558\uace0 \uc788\ub2e4. \ucc38\uace0\ub85c, \uc77c\ubc18 \uac00\uac8c\uc5d0\uc11c \ud314\uace0 \uc788\ub294 \uc2fc \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc2a4\ud2f8\uc758 \ud488\uc9c8\uc740, \uace0\ucca0\uc744 \ub179\uc5ec\uc11c \uc7ac\uc0dd\ud55c \uac83\ubcf4\ub2e4 \uc57d\uac04 \ub098\uc740 \uc815\ub3c4\uc5d0 \ubd88\uacfc\ud558\ub2e4. <\/p>\n

2.1. \ud504\ub808\uc784 \uc18c\uc7ac\ub85c\uc11c\uc758 \uc2a4\ud2f8 Choosing Steel as a Frame Material <\/p>\n

\uc790\uc804\uac70\uc758 \ud504\ub808\uc784 \ube4c\ub354\ub294, \uc0ac\uc6a9\ud558\ub294 \uc7ac\ub8cc\ub97c \uacb0\uc815\ud560 \ub54c, \ub9ce\uc740 \uc694\uc18c\ub97c \uace0\ub824\ud560 \ud544\uc694\uac00 \uc788\ub2e4. \uadf8\ub7ec\ub098 \ubaa8\ub4e0 \uac83\uc744 \uac80\ud1a0\ud55c\ub2e4\uace0 \ud574\ub3c4 \uba85\ubc31\ud55c \uacb0\ub860\uc774 \ub098\uc624\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. <\/p>\n

\ud558\uc9c0\ub9cc, \ud504\ub808\uc784\uc758 \uc18c\uc7ac\ub85c \uc2a4\ud2f8\uc744 \uc0ac\uc6a9\ud558\ub294 \uc774\uc720\ub294 \uc5ec\ub7ec\uac00\uc9c0\uac00 \uc788\ub2e4. 1\uc7a5(\u7ae0)\uc5d0\uc11c \uc124\uba85\ud55c \ubb3c\ub9ac\uc801 \uc131\uc9c8\uc744 \uc0c1\uae30\ud574 \ubcf4\uc790. \ud2f0\ud0c0\ub284\uacfc \uc54c\ubbf8\ub284\uc5d0 \ube44\ud574 \uc2a4\ud2f8\uc774 \uc5b4\ub5a4 \ubb3c\uc131(\u7269\u6027)\uc744 \uac00\uc9c0\uace0 \uc788\ub294\uc9c0 \uc870\uc0ac\ud574 \ubcf4\uc790. \uc598\uae30\ub97c \uac04\ub2e8\ud788 \ud558\uae30 \uc704\ud574 \uc5ec\uae30\uc11c\ub294 \uce74\ubcf8, Metalmatrix \ub4f1\uc740 \uc81c\uc678\ud558\uae30\ub85c \ud55c\ub2e4. \uc774 \uc18c\uc7ac\ub4e4\uc5d0 \ub300\ud574\uc11c\ub294 \ub098\uc911\uc5d0 \uac01\uac01\uc758 \uc7a5(\u7ae0)\uc5d0\uc11c, \ud2f0\ud0c0\ub284, \uc54c\ubbf8\ub284, \uc2a4\ud2f8 \ub4f1\uacfc \ube44\uad50\ud558\uae30\ub85c \ud55c\ub2e4. <\/p>\n

2.1.1. \ubc00\ub3c4 Density <\/p>\n

1\uc7a5(\u7ae0)\uc5d0\uc11c \ubc00\ub3c4\ubd80\ud130 \uc124\uba85\ud55c \ubc14 \uc788\ub294\ub370, \uc774\uac83\uc740 \ubc00\ub3c4\uac00 \uac00\uc7a5 \uc774\ud574\ud558\uae30 \uc26c\uc6b4 \ubb3c\uc131(\u7269\u6027)\uc774\uae30 \ub54c\ubb38\uc774\ub2e4. \ubd88\ud589\ud558\uac8c\ub3c4, \ubc00\ub3c4\uc5d0 \uad00\ud574\uc11c \uc2a4\ud2f8\uc740 \ubd88\ub9ac\ud558\ub2e4. \uc2a4\ud2f8\uc758 \ubc00\ub3c4\ub294 7.86\uc73c\ub85c, \ud2f0\ud0c0\ub284(4.54)\uc758 2\ubc30 \uc815\ub3c4, \uc54c\ubbf8\ub284(2.69)\uc758 3\ubc30 \uc815\ub3c4\uc5d0 \ub2ec\ud55c\ub2e4. \uc624\ub298\ub0a0\uc758 \uc790\uc804\uac70\uc5d0 \uc788\uc5b4\uc11c \uacbd\ub7c9\ud654(\u8f15\u91cf\u5316)\ub294 \uc9c0\uc0c1\uba85\uc81c\uc778\ub370, \ubc00\ub3c4\uac00 \ud06c\uba74 \uacbd\ub7c9\ud654\uac00 \uc5b4\ub835\uae30 \ub54c\ubb38\uc5d0, \ubc00\ub3c4\ub294 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc694\uc18c\uac00 \ub41c\ub2e4. \ud558\uc9c0\ub9cc, \uc2a4\ud2f8\uc5d0\uac8c\ub294 \ub2e4\ud589\ud558\uac8c\ub3c4, \uace0\ub824\ud574\uc57c \ud560 \ubb3c\uc131(\u7269\u6027)\uc5d0\ub294 \ubc00\ub3c4 \uc774\uc678\uc5d0\ub3c4 \ub2e4\ub978 \uc694\uc18c\uac00 \uc788\ub2e4. <\/p>\n

2.1.2. \uac15\uc131(\u525b\u6027) Stiffness <\/p>\n

\ud2f0\ud0c0\ub284\uc774\ub098 \uc54c\ubbf8\ub284\uc5d0 \ube44\ud574\uc11c \uc2a4\ud2f8\uc774 \ub6f0\uc5b4\ub09c \uc810\uc774 \uac15\uc131(\u525b\u6027)\uc774\ub2e4. \uc2a4\ud2f8\uc758 \uc601\ub960(\uf961)\uc740 \ud3c9\ubc29\uc778\uce58 \ub2f9 \uc57d 3\ucc9c\ub9cc \ud30c\uc6b4\ub4dc\ub2e4(\ub2e8\uc704 psi). \uc774\uc5d0 \ube44\ud574 \ud2f0\ud0c0\ub284 \ud569\uae08 Ti3Al-2V\uc758 \uacbd\uc6b0\ub294 1550\ub9cc psi, 6061 \uc54c\ubbf8\ub284\uc740 \uc57d 1\ucc9c\ub9cc psi\ub2e4. \uc989, \uc774 \uc138 \uc885\ub958\uc758 \uae08\uc18d\uc758 \uac15\uc131(\u525b\u6027)\uc758 \ube44\ub294 \uc57d 3:2:1\ub85c, \ubc00\ub3c4\uc758 \ube44\uc640 \uac70\uc758 \uac19\ub2e4. \ubc14\uafd4 \ub9d0\ud558\uc790\uba74, \uc2a4\ud2f8, \ud2f0\ud0c0\ub284, \uc54c\ubbf8\ub284\uc758 \uc911\ub7c9\ub2f9 \uac15\uc131(\u525b\u6027)\uc740 \uac70\uc758 \ub3d9\uc77c\ud558\ub2e4(\ub2e8, \uc774 \ube44\uad50\ub294, \uc2e0\uc7a5(\u4f38\u5f35)\uacfc \uc5fc\ucd95(\u53ad\u7e2e)\uc5d0 \uad00\ud574\uc11c\ub9cc \uc801\uc6a9\ub41c\ub2e4). <\/p>\n

\uc880 \ub354 \uc790\uc138\ud788 \ub9d0\ud558\uc790\uba74, \uc601\ub960(\uf961)\uc774\ub780, \ubd80\ud558(\u8ca0\u8377)-\uc65c\uace1(\u6b6a\u66f2)\uace1\uc120\uc758 \ud55c\uacc4\uce58\ubcf4\ub2e4 \uc544\ub7ab\ucabd\uc758 \uc601\uc5ed\uc5d0 \uc788\uc5b4\uc11c\uc758 \ubd80\ud558\uc640 \uc65c\uace1\uc758 \ube44\uc728\uc774\ub2e4. \uc774\uac83\uc740 1\uc7a5(\u7ae0)\uc5d0\uc11c \uac04\ub2e8\ud558\uac8c \uc124\uba85\ud55c \ubc14 \uc788\ub294\ub370, \uc694\ub294, \uc218\uc790\uac00 \ud06c\uba74 \ud074\uc218\ub85d \uac15\uc131(\u525b\u6027)\uc774 \ub192\ub2e4\ub294 \uc810\uc774\ub2e4. Wait a minute, though! \uc2a4\ud2f8\uc758 \uac15\uc131(\u525b\u6027)\uc774 \uadf8\ub807\uac8c \ub192\uace0 \uc54c\ubbf8\ub284\uc774 \ub0ae\ub2e4\uba74, \uc65c \ub450\uaebc\uc6b4 \ud29c\ube0c\uc758 \uc54c\ubbf8\ub284 \ud504\ub808\uc784\uc740 \uc65c \uadf8\ub807\uac8c \ub531\ub531\ud55c\uac00? <\/p>\n

\uc601\ub960(\uf961)\uc758 \uce21\uc815\uc740 \uc18c\uc7ac\uc5d0 \uad00\uacc4\uc5c6\uc774 \uc804\ubd80 \ub3d9\uc77c\ud55c \uc0ac\uc774\uc988\uc5d0\uc11c \uc2e4\uc2dc\ud55c\ub2e4. \uc774 \uce21\uc815\uc758 \uacb0\uacfc\ub97c \ub2e8\uba74\uacc4\uc218\ub77c\uace0 \ubd80\ub978\ub2e4. \ud29c\ube0c\uc758 \ub450\uaed8\uc640 \uc9c1\uacbd\uc758 \uacb0\uc815\uc740 \ud504\ub808\uc784 \ube4c\ub354\uac00 \uc2e4\ub825\uc744 \ubc1c\ud718\ud558\ub294 \ud3ec\uc778\ud2b8\uc758 \ud558\ub098\uc778\ub370, \uc774 \uacbd\uc6b0 \uadf9(\u6975)\ub2e8\uba74\uacc4\uc218\ub294 0.196(D4-d4\/D)\ub77c\ub294 \uacf5\uc2dd\uc73c\ub85c \uacb0\uc815\ud55c\ub2e4. \uc5ec\uae30\uc11c D\ub294 \uc678\uacbd(\u5916\u5f91) d\ub294 \ub0b4\uacbd(\u5167\u5f91)\uc744 \uc758\ubbf8\ud55c\ub2e4. \uc774 \uacf5\uc2dd\uc774 \uc758\ubbf8\ud558\ub294 \ubc14\ub97c \uac04\ub2e8\ud788 \uc124\uba85\ud558\uba74, \uac15\uc131(\u525b\u6027)\uc740 \uc678\uacbd(\u5916\u5f91)\uc758 3\uc81c\uacf1\uc5d0 \ube44\ub840\ud574\uc11c \uc99d\uac00\ud55c\ub2e4\ub294 \uac83\uc774\ub2e4. \ubc14\uafd4 \ub9d0\ud558\uc790\uba74, \uc9c1\uacbd 2\uc778\uce58\uc758 \ud29c\ube0c\ub294, \uac19\uc740 \ub450\uaed8\uc758 \uc9c1\uacbd 1\uc778\uce58\uc758 \ud29c\ube0c\uc640 \ube44\uad50\ud574\uc11c \uc911\ub7c9\uc740 2\ubc30\uc9c0\ub9cc, \uac15\uc131(\u525b\u6027)\uc740 8\ubc30\uac00 \ub418\ub294 \uac83\uc774\ub2e4. \ud074\ub77c\uc778(Klein)\uc774\ub098 \uce90\ub17c\ub370\uc77c(Cannondale)\uc758 \uc2b9\ucc28\uac10\uc774 \uc88b\uc740 \uc774\uc720\ub97c \uc774\uc81c \uc544\uc2dc\uaca0\ub294\uac00? <\/p>\n

\ub610 \ud55c \uac00\uc9c0 \uac04\ub2e8\ud55c \uc608\ub85c, \uc9c1\uacbd\uc740 \ub2e4\ub974\uace0 \uc911\ub7c9\uc774 \uac19\uc740 2\uac1c\uc758 \ud29c\ube0c\ub97c \ube44\uad50\ud574 \ubcf4\uc790. \uc9c1\uacbd 1\uc778\uce58, \ub450\uaed8 0.049\uc778\uce58\uc758 \uc2a4\ud2f8 \ud29c\ube0c\uc640 \uc9c1\uacbd 1.5\uc778\uce58, \ub450\uaed8 0.032\uc778\uce58\uc758 \ud29c\ube0c\ub294 \ubb34\uac8c\ub294 \ub3d9\uc77c\ud558\uc9c0\ub9cc, \uac15\uc131(\u525b\u6027)\uc740 \ud6c4\uc790(\u5f8c\u8005)\uac00 1.6\ubc30 \ub192\ub2e4. <\/p>\n

\uc5ec\uae30\uae4c\uc9c0 \uc77d\uc740 \ub3c5\uc790\ub4e4\uc740 \uc544\ub9c8, “\uadf8\ub7fc \uc65c \uc2a4\ud2f8 \ud29c\ube0c\ub97c \uc54c\ubbf8\ub284\ucc98\ub7fc \ub450\uaecd\uac8c \ud558\uc9c0 \uc54a\uc744\uae4c?”\ub77c\uace0 \uc0dd\uac01\ud560 \uc9c0\ub3c4 \ubaa8\ub974\uaca0\ub2e4. \uc5ec\uae30\uc11c \uc0dd\uac01\ud558\uc9c0 \uc54a\uc73c\uba74 \uc548\ub418\ub294 \uac83\uc774, \uc774\ub978\ubc14 “\ub9e5\uc8fc \uce94 \ud6a8\uacfc”\ub77c\ub294 \uac83\uc774\ub2e4. \uc9c1\uacbd\uacfc \ub450\uaed8\uc758 \ube44\uc728\uc774 60:1-70:1\ubcf4\ub2e4 \ucee4\uc9c0\uba74 \ud29c\ube0c\ub294 \ub9e5\uc8fc \uce94\ucc98\ub7fc \ucc0c\uadf8\ub7ec\uc9c0\uae30 \uc27d\uac8c \ub41c\ub2e4. \uc54c\ubbf8\ub284\uc774\ub098 \ud2f0\ud0c0\ub284\uc758 \uacbd\uc6b0\ub294 \ubc00\ub3c4\uac00 \ub0ae\uae30 \ub54c\ubb38\uc5d0, \ub450\uaebc\uc6b0\uba74\uc11c\ub3c4 \ucc0c\uadf8\ub7ec\uc9c0\uc9c0 \uc54a\ub294 \ud29c\ube0c\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc9c0\ub9cc \uc2a4\ud2f8\uc740 \uadf8\ub807\uac8c\ub294 \uc548\ub41c\ub2e4. <\/p>\n

2.1.3. \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027) Elongation <\/p>\n

\uc55e\uc5d0\uc11c\ub3c4 \uc5b8\uae09\ud55c \uac83\ucc98\ub7fc, \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc740 \uc5f0\uc131(\u5ef6\u6027)\uc758 \uc9c0\ud45c\ub85c\uc11c, \uc18c\uc7ac\uac00 \ud30c\uad34\ub418\uae30 \uc804\uae4c\uc9c0 \uc5bc\ub9c8\ub9cc\ud07c \ub298\uc5b4\ub098\ub294\uac00\ub97c \ubc31\ubd84\ub960\ub85c \ud45c\uc2dc\ud55c \uac83\uc774\ub2e4.\ud569\uae08\uc758 \ubc30\ud569\uc774\ub098 \uc5f4\ucc98\ub9ac\ub97c \ud574\ub3c4 \ubc00\ub3c4\uc640 \uac15\uc131(\u525b\u6027)\uc740 \ud06c\uac8c \ubcc0\ud654\ud558\uc9c0 \uc54a\uc9c0\ub9cc, \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uacfc \uac15\ub3c4(\u5f3a\u5ea6)\ub294 \ub2e4\ub974\ub2e4. \uc2e0\uc7a5(\u4f38\u5f35)\uc2e4\ud5d8\uc5d0\uc11c\ub294, \uc18c\uc7ac\ub294 \ud30c\uad34\ub420 \ub54c\uae4c\uc9c0 \uc7a1\uc544\ub2f9\uaca8\uc9c4\ub2e4. \uc2dc\ub8cc(\u8a66\u6599)\uc5d0\ub294 \uc0ac\uc804\uc5d0 \ub9c8\ud06c\ub97c \ud574 \ub450\uace0, \uc2e4\ud5d8\uc774 \ub05d\ub09c \ub4a4 \ub9c8\ud06c\uac04\uc758 \uac70\ub9ac\ub97c \uce21\uc815\ud574, \ub458 \uc0ac\uc774\uc758 \ube44\uc728\uc744 \ubc31\ubd84\ub960\ub85c \ud45c\uc2dc\ud55c\ub2e4. \uc790\uc804\uac70\uc758 \ud29c\ube0c\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc2a4\ud2f8\uc758 \uacbd\uc6b0, \uc774 \uc218\uce58\ub294 \ud1b5\uc0c1 9-15%\uc778\ub370, 10% \uc774\ud558\uc77c \ub54c\ub294 \uadf8 \uc18c\uc7ac\uc758 \uc804\uccb4\uc801\uc778 \ubb3c\uc131(\u7269\u6027)\uc744 \uc7ac\uace0\ud560 \ud544\uc694\uac00 \uc788\ub2e4. <\/p>\n

\uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774 \uc800\ud558\ud560 \uc218\ub85d, \ud504\ub808\uc784\uc740 \uc57d\ud558\uace0 \ubd80\ub7ec\uc9c0\uae30 \uc27d\ub2e4. \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774 \ub0ae\uc740 \uc18c\uc7ac\uc758 \uc131\uc9c8\uc744 \uc870\uc0ac\ud558\ub824\uba74, \uc778\ub3c4(\u976d\u5ea6)\uc640 \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6)\uc640 \uac19\uc740 \uac15\ub3c4(\u5f3a\u5ea6)\uc801 \uce21\uba74\uc744 \uc0b4\ud3b4 \ubcfc \ud544\uc694\uac00 \uc788\ub2e4. \ubc29\ubc95\uc73c\ub85c\uc11c\ub294, \ucda9\uaca9\uc2e4\ud5d8 \ub4f1 \uc5ec\ub7ec\uac00\uc9c0\uac00 \uc788\uc9c0\ub9cc \uc815\ud655\ud55c \ubd84\uc11d\uc740 \ubcf5\uc7a1\ud558\ubbc0\ub85c \uc5ec\uae30\uc5d0\uc11c\ub294 \uc0dd\ub7b5\ud558\uaca0\ub2e4. <\/p>\n

2.1.4. \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6): \uadf9\ud55c\uac15\ub3c4(\u5f3a\u5ea6)\uc640 \ud56d\ubcf5\uc810 Tensile Strength: Ultimate and Yield <\/p>\n

\uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6)\ub294 \ud569\uae08\uc758 \ubc30\ud569\ub960\uc5d0 \ub530\ub77c \ud06c\uac8c \ubcc0\ud560 \uc218 \uc788\ub2e4. \uc77c\ubc18\uc801\uc778 \ud06c\ub85c\ubab0\ub9ac\uc758 \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6)\ub294 90ksi(\uc5ed\uc8fc(\u8b6f\u8a3b): \ub2e8\uc704 \ubd80\uba85(\u4e0d\u660e))\uc774\uc9c0\ub9cc, \ud2b8\ub8e8 \ud15c\ud37c(True Temper)\uc0ac\uc758 OX3\ub77c\ub294 \uc2a4\ud2f8\uc740 2\ubc30 \uac00\uae4c\uc6b4 169ksi\uc758 \uc218\uce58\ub97c \uae30\ub85d\ud55c\ub2e4. \ud558\uc9c0\ub9cc, \uc5b4\ub290\ucabd\uc758 \uacbd\uc6b0\ub3c4 \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\uc5c8\uc744 \ub54c \ubd80\ub7ec\uc9c8 \uac00\ub2a5\uc131\uc774 \uc788\ub2e4. \ud56d\uacf5\uae30\uc6a9 \uc2a4\ud2f8\ub85c \ub9cc\ub4e4\uc5b4\uc9c4 straight gauge\uc758 \ud29c\ubd80\ub294 \uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc18c\uc7ac\ub85c\uc11c \ub9e4\uc6b0 \uc2e0\ub8b0\uc131\uc774 \uc788\ub2e4\ub294 \uac83\uc774 \uacbd\ud5d8\uc801\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc9c0\ub9cc, \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6)\ub294 90ksi\uc5d0 \uc9c0\ub098\uc9c0 \uc54a\ub294\ub2e4. \uadf8\ub7ec\ub098, \uc778\ub3c4(\u976d\u5ea6)\uc640 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774 \ub9e4\uc6b0 \uc88b\uc544\uc11c, \uac15\ub3c4(\u5f3a\u5ea6)\uac00 \ub0ae\uc544\ub3c4 \ubb38\uc81c\uac00 \uc5c6\ub294 \uac83\uc778\uc9c0\ub3c4 \ubaa8\ub978\ub2e4. \ud2b8\ub8e8 \ud15c\ud37c(True Temper)\uc0ac\uc758 OX3\ub85c \ub9cc\ub4e0 \ud29c\ube0c\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\uac00 \ubcf4\ud1b5\uc758 \ud06c\ub85c\ubab0\ub9ac\uc5d0 \ube44\ud574 2\ubc30\ub77c\uba74, \ub450\uaed8\ub97c \ubc18\uc73c\ub85c \uc904\uc77c \uc218 \uc788\ub2e4. \ubc18 \ub450\uaed8\uc758 \ud29c\ube0c\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\uc640 \uac15\uc131(\u525b\u6027)\uc740 \ucda9\ubd84\ud55c\uac00? No. \ub0b4\uad6c\uc131\uc5d0\ub3c4 \ubb38\uc81c\uac00 \uc788\ub2e4. <\/p>\n

2.2. \uc885\ud569 The Big Picture <\/p>\n

\uac04\ub2e8\ud788 \ub9d0\ud558\uc790\uba74, \uace0\ub824\ud574\uc57c \ud560 \uc694\uc18c\uac00 \ub9ce\ub2e4\ub294 \uc810\uc774\ub2e4. \ub2e8\ud3b8\uc801\uc778 \uc218\uce58\ub97c \ubcf4\ub294 \uac83\ub9cc\uc73c\ub85c \uc804\uccb4\ub97c \ud30c\uc545\ud560 \uc218\ub294 \uc5c6\ub2e4. \uc7ac\ub8cc\uacf5\ud559\uc790\uac00 \uad11\uace0 \ub2f4\ub2f9\uc790\uc5d0\uac8c, \uc5b4\ub5a4 \uc18c\uc7ac\uc5d0 \ub300\ud55c \ub2e4\ub978 \uc18c\uc7ac\uc758 \uc6b0\uc704\uc131\uc744 \uc124\uba85\ud558\ub294 \uac83\uc740 \uac04\ub2e8\ud558\ub2e4. \ud558\uc9c0\ub9cc, \uc2e4\uc81c\ub294, \uc704\uc5d0\uc11c \uc5b8\uae09\ud55c \uac83\ucc98\ub7fc, \ub3d9\uc77c\ud55c \ubc00\ub3c4\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \ub9e4\uc6b0 \ub2e4\ub978 \uac15\ub3c4(\u5f3a\u5ea6)\ub97c \uac00\uc9c0\ub294 2\uc885\ub958\uc758 \uc18c\uc7ac \uc5b4\ub290\ucabd\uc744 \uac00\uc9c0\uace0\ub3c4 \uc88b\uc740 \uc790\uc804\uac70\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub2e4. <\/p>\n

\uc2a4\ud2f8\uc740 \ud504\ub808\uc784\uc758 \uc18c\uc7ac\ub85c\uc11c \ub9e4\uc6b0 \uc2e0\ub8b0\uc131\uc774 \ub192\uace0 \uac00\uc7a5 \uc131\uacf5\ud55c \uc18c\uc7ac\ub77c\uace0 \ud560 \uc218 \uc788\ub2e4. \uc2a4\ud2f8\uc740 \uac00\uacf5\ud558\uae30 \uc27d\uace0, \uc6a9\uc811\uc774 \uc6a9\uc774\ud558\uba74\uc11c, \uc791\uc5c5\uc5d0 \ud544\uc694\ud55c \uc124\ube44\uac00 \uac04\ub2e8\ud558\uba70, \uc608\uce21 \uac00\ub2a5\ud55c \ud615\ud0dc\ub85c \ubd80\ub7ec\uc9c4\ub2e4. \uac8c\ub2e4\uac00, \ubb34\uc5c7\ubcf4\ub2e4\ub3c4 \uac00\uaca9\uc774 \uc2f8\ub2e4. \uc9c0\ub09c 100\ub144\uac04 \uc2a4\ud2f8\uc758 \uc790\ub9ac\ub97c \uc704\ud611\ud574 \uc628 \uc18c\uc7ac\ub294 \uc801\uc9c0 \uc54a\ub2e4. \uadf8\ub7ec\ub098 20\ub144 \uc815\ub3c4 \uc804\ubd80\ud130 \uc54c\ubbf8\ub284 \ud504\ub808\uc784\uc774 \uc99d\uac00\ud558\uace0 \uc788\uc73c\uba70, \ud2f0\ud0c0\ub284\ub3c4 \ucd5c\uadfc 10\ub144 \uc815\ub3c4 \uc131\uacf5\uc744 \uac70\ub450\uace0 \uc788\ub2e4. \uc774\ucc98\ub7fc, \ud604\uc7ac(1994\ub144) \uc2a4\ud2f8\uc740 \uc804\ub3c4\uc720\ub9dd\ud55c \uba87 \uac00\uc9c0 \uc18c\uc7ac\ub85c\ubd80\ud130 \ub3c4\uc804\uc744 \ubc1b\uace0 \uc788\ub2e4. \ub098\uba38\uc9c0 \uc18c\uc7ac\uc5d0 \ub300\ud574\uc11c\ub3c4 \ub2e4\uc74c \uc7a5(\u7ae0)\ub4e4\uc5d0\uc11c \ub2e4\ub8e8\uac8c \ub418\uaca0\uc9c0\ub9cc, \uba3c\uc800 \uc54c\ubbf8\ub284\uc744 3\uc7a5(\u7ae0)\uc5d0\uc11c \ub2e4\ub8e8\uae30\ub85c \ud558\uc790. <\/p>\n

3. \uc54c\ubbf8\ub284\uc758 \ubbf8\ub798\ub294 \ubc1d\ub2e4 Aluminum’s Future is Bright and Shiny <\/p>\n

\uc790, \uc218\uc5c5 \uc2dc\uc791\ud560\uae4c\uc694. \uc624\ub298\uc740 \uc54c\ubbf8\ub284\uc5d0 \ub300\ud574\uc11c \uacf5\ubd80\ud558\uae30\ub85c \ud569\uc2dc\ub2e4. \uc774\ubc88\uc5d0\ub294 \uc9c0\uae08\uae4c\uc9c0 2\uc7a5(\u7ae0)\uc5d0\uc11c \uacf5\ubd80\ud574 \uc628 \ub0b4\uc6a9\uc774 \ud1a0\ub300\uac00 \ub418\uaca0\ub294\ub370, 1, 2\uc7a5(\u7ae0)\uc740 \ubcf5\uc2b5\ud588\uc2b5\ub2c8\uae4c? \uc790, \uadf8\ub7fc, \uc2dc\uc791\ud569\uc2dc\ub2e4. <\/p>\n

\uc9c0\ub09c 10\ub144\uac04 \uc54c\ubbf8\ub284\uc740 \uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc18c\uc7ac\ub85c\uc11c \ube44\uc57d\uc801\uc73c\ub85c \ubcf4\uae09\ub418\uc5b4 \uc654\ub2e4. 80\ub144\ub300 \ucd08\ubc18\uc5d0\ub294 \uc54c\ubbf8\ub284 \uc790\uc804\uac70\ub294 \uc544\uc9c1 \ub4dc\ubb3c\uc5c8\uace0, \uace0\uac00(\u9ad8\u50f9) \uc790\uc804\uac70\uc5d0\ub9cc \uc0ac\uc6a9\ub418\uc5c8\uc9c0\ub9cc, 82\ub144\uc5d0 \uce90\ub17c\ub370\uc77c(Cannondale)\uc774 \ucc38\uac00\ud55c \uc774\ud6c4, \ubcf4\uae09\ud615 \ubaa8\ub378\uc774 \ub4f1\uc7a5\ud558\uae30 \uc2dc\uc791\ud588\ub2e4. \ud604\uc7ac\uc5d0\ub294, \ub300\ubd80\ubd84\uc758 \ub300\uc18c \uba54\uc774\ucee4\ub4e4\uc774 \uc54c\ubbf8\ub284 \ubaa8\ub378\uc744 \uc81c\uc791\ud558\uace0 \uc788\ub2e4. <\/p>\n

\uc54c\ubbf8\ub284\uc740 \uc9c0\uac01 \uc911\uc5d0 \uac00\uc7a5 \ud48d\ubd80\ud558\uac8c \uc874\uc7ac\ud558\ub294 \uae08\uc18d\uc774\ub77c\uc11c, \uc7ac\ub8cc\uac00 \ubd80\uc871\ud560 \uc77c\uc740 \uc5c6\ub2e4. \ub610\ud55c \uc54c\ubbf8\ub284\uc740 \ub9c8\uadf8\ub124\uc298\uacfc \ubca0\ub9b4\ub968 \ub2e4\uc74c\uc73c\ub85c \uac00\ubcbc\uc6b4 \uae08\uc18d\uc774\ub2e4. \uc54c\ubbf8\ub284\uc758 \uc8fc\uc6d0\ub8cc\ub294 \ubcf4\ud06c\uc0ac\uc774\ud2b8\ub77c\ub294 \uad11\uc11d\uc778\ub370, \uc774 \uc774\ub984\uc740 \ucc98\uc74c\uc5d0 \ubc1c\uacac\ub41c \uc7a5\uc18c\uc778 \ud504\ub791\uc2a4\uc758 Les-Baux-de-Provence\ub77c\ub294 \uc9c0\uba85\uc5d0\uc11c \uc720\ub798\ud55c\ub2e4. \ubcf4\ud06c\uc0ac\uc774\ud2b8\ub294 \uc54c\ubbf8\ub284 \uc218\ud654\ubb3c(\u6c34\u5316\u7269)(Al2O3*2H2O) \ubc0f \uc2a4\ud2f8, \ud2f0\ud0c0\ub284 \uc0b0\ud654\ubb3c \ub4f1\uc758 \ubd88\uc21c\ubb3c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\ub2e4. \uc774 \uad11\uc11d \ud55c \uac00\uc9c0\ub9cc\uc73c\ub85c \uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc18c\uc7ac\ub85c \ucda9\ubd84\ud55c \uc6d0\uc18c\ub97c \ud3ec\ud568\ud558\uace0 \uc788\ub294 \uac83\uac19\uc9c0\ub9cc, \uc2a4\ud2f8\uacfc \ud2f0\ud0c0\ub284\uc758 \uacbd\uc6b0\uc5d0\ub294 \ub354 \uc88b\uc740 \uad11\uc11d\uc774 \uc788\ub2e4. <\/p>\n

3.1. \uc54c\ubbf8\ub284\uc744 \ud29c\ube0c\ub85c Making Aluminum into Tubing <\/p>\n

\uc9c0\uac01 \uc911\uc758 \uc54c\ubbf8\ub284\uc744 \uc790\uc804\uac70\ub098 \uc758\uc790\uc6a9 \ud29c\ube0c\ub85c \uac00\uacf5\ud558\ub294 \ud504\ub85c\uc138\uc2a4\ub294 \ub9e4\uc6b0 \ubcf5\uc7a1\ud558\uace0 \ud658\uacbd\uc5d0 \ub098\uc058\uba70 \uc5d0\ub108\uc9c0\ub97c \ub2e4\ub7c9\uc73c\ub85c \uc18c\ube44\ud55c\ub2e4. \ubcf4\ud06c\uc0ac\uc774\ud2b8\ub85c\ubd80\ud130 \uc54c\ubbf8\ub284\uc744 \uc81c\uc870\ud558\ub294 \ubc29\ubc95\uc744 \uc790\uc138\ud788 \uacf5\ubd80\ud558\ub824\uba74 \ub450\ud1b5\uc774 \uc0dd\uae38 \uc815\ub3c4\uc774\ubbc0\ub85c, \uadf8 \uacf5\uc815\uc774 \ubc14\uc774\uc5d8\ubc95(\u6cd5)\uc774\ub77c\uace0 \ubd88\ub9ac\ub294 \uac83\uc740 \uc815\ub9d0 \uc801\uc808\ud558\ub2e4(\uc5ed\uc8fc: \ubc14\uc774\uc5d8(Bayer)\uc740, \ub450\ud1b5\uc57d \ud68c\uc0ac\ub2e4). \uc54c\ubbf8\ub284 1Kg\uc744 \uc81c\uc870\ud558\ub294 \ub370 \ud544\uc694\ud55c \uc5d0\ub108\uc9c0(\uc804\ub825)\ub294, \uc2a4\ud2f8\uc758 \uacbd\uc6b0\ubcf4\ub2e4 \ud6e8\uc52c \ub192\ub2e4. \ub9ac\uc0ac\uc774\ud074\ub41c \uc54c\ubbf8\ub284\uc73c\ub85c\ubd80\ud130 \uc9c0\uae08(\u5730\uf90a)\uc744 \uc7ac\uc0dd\ud558\ub294 \ub370 \ud544\uc694\ud55c \uc5d0\ub108\uc9c0\ub294, \ubcf4\ud06c\uc0ac\uc774\ud2b8\ub85c\ubd80\ud130 \uc81c\uc870\ud558\ub294 \uacf5\uc815\uc758 5% \uc815\ub3c4\uc5d0 \uadf8\uce58\uc9c0\ub9cc, \uc555\uc5f0, \ucd94\ucd9c, draw\uc744 \ud544\uc694\ub85c \ud558\ub294 \ub2e8\uc870(\u935b\u9020)\uacf5\uc815\uc5d0\ub294 \uc0ac\uc6a9\ud560 \uc218 \uc5c6\ub2e4\ub294 \ubb38\uc81c\uac00 \uc788\ub2e4. <\/p>\n

\uc54c\ubbf8\ub284 \ud569\uae08\uc5d0\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uc885\ub958\uac00 \uc874\uc7ac\ud558\uc9c0\ub9cc, \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub2e8\uc870(\u935b\u9020)\uc54c\ubbf8\ub284\uc740 \ud1b5\uc0c1 4\uc790\ub9ac\uc218\uc758 \uc22b\uc790\ub85c \ud45c\uae30\ub41c\ub2e4. \uadf8 \ud55c \uc608\uac00, \uc61b\ub0a0\ubd80\ud130 \ub192\uc740 \ud3c9\uac00\ub97c \ubc1b\uace0 \uc788\ub294 6061 \ud569\uae08\uc774\ub2e4. \uc774\uc640 \ube44\uad50\ud574\uc11c \uc8fc\uc870(\u9444\u9020)\uc54c\ubbf8\ub284\uc740 3\uc790\ub9ac\uc218 \ub2e4\uc74c\uc5d0 \ub9c8\uce68\ud45c\ub97c \ucc0d\uc740 \ub2e4\uc74c 4\ubc88\uc9f8 \uc218\uc790\ub97c \ud45c\uc2dc\ud55c\ub2e4. \ub2e8\uc870(\u935b\u9020)\/\uc8fc\uc870(\u9444\u9020) \ub450 \uacbd\uc6b0 \ubaa8\ub450 \uc5f4\ucc98\ub9ac\uc5d0 \uad00\ud55c \uc218\uce58\ub294 Tx\ub85c \ud45c\uc2dc\ud55c\ub2e4. 7075T6\ub098 2024T4\uac19\uc740 \uae30\ud638\ub97c \ubcf8 \uc801\uc774 \uc788\uc744 \uac83\uc774\ub2e4. \uc5ec\uae30\uc11c T6, T4\uac00 \uc5f4\ucc98\ub9ac\uc5d0 \uad00\ud55c \uae30\ud638\ub2e4. \uc774\uac83\uc740, \uc5b4\ub5a4 \ub0c9\uac04\ub2e8\uc870(\uf92e\u9593\u935b\u9020), \uc5f4\ucc98\ub9ac, \uc5d0\uc774\uc9d5(\uc778\uc704\uc801\uc73c\ub85c \uc2dc\uac04\uc758 \uacbd\uacfc\uc5d0 \uc758\ud55c \uacbd\ud654(\u786c\u5316)\ud6a8\uacfc\ub97c \uc8fc\ub294 \uacf5\uc815) \uacf5\uc815\uc744 \uac70\ucce4\ub294\uac00\ub97c \ub098\ud0c0\ub0b8\ub2e4. <\/p>\n

\uc54c\ubbf8\ub284 \ud569\uae08\uc758 \uacbd\uc6b0\uc5d0\ub294, \uc5f4\ucc98\ub9ac\uc5d0 \uc758\ud574 \uadf8 \uae30\uacc4\uc801 \ubb3c\uc131(\u7269\u6027)\uc774 \ud06c\uac8c \ubcc0\ud654\ud55c\ub2e4(\ub2e8, \uc5f4\ucc98\ub9ac\uac00 \uac00\ub2a5\ud55c \ud569\uae08\uacfc \ubd88\uac00\ub2a5\ud55c \ud569\uae08\uc774 \uc788\ub2e4). 6061 \uc54c\ubbf8\ub284\uc758 \ub2e4\uc6b4 \ud29c\ube0c(\uc790\uc804\uac70\uc758 \ubd80\uc704\ubcc4 \uba85\uce6d)\ub97c 6061 \uc54c\ubbf8\ub284\uc758 \ud5e4\ub4dc \ud29c\ube0c(\uc790\uc804\uac70\uc758 \ubd80\uc704\ubcc4 \uba85\uce6d)\uc5d0 \uc6a9\uc811\ud560 \uacbd\uc6b0, \uc6a9\uc811\ubd80\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\ub294 \uc6a9\uc811\uc804\uc5d0 \ube44\ud574\uc11c \ub5a8\uc5b4\uc9c4\ub2e4. \ub54c\ubb38\uc5d0, \uc5f4\ucc98\ub9ac \ubc0f \uc5d0\uc774\uc9d5\uc744 \ud1b5\ud574 \uac15\ub3c4(\u5f3a\u5ea6)\ub97c \ubcf4\uac15\ud560 \ud544\uc694\uac00 \uc0dd\uae34\ub2e4. \uc2a4\ud398\uc15c\ub77c\uc774\uc988\ub4dc(Specialized)\uc758 M2\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc18c\uc7ac\ub85c\uc11c, 6061\uc744 \ud1a0\ub300\ub85c \ud574\uc11c, \uc0b0\ud654 \uc54c\ubbf8\ub284\uc744 \uc57d 10% \ubc30\ud569\ud55c \ub4c0\ub784\uce94(Duralcan)\ub3c4 \uc774\ub7f0 \ucc98\ub9ac\uac00 \ud544\uc694\ud558\ub2e4. \uc774\uc2a4\ud2bc(Easton)\uc0ac\uc758 \ubca0\ub9b4\ub77c\uc774\ud2b8(Varilite)\ub85c \ub300\ud45c\ub418\ub294 7005 \uc54c\ubbf8\ub284\uc740 \uc6a9\uc811\ud6c4\uc758 \uc5f4\ucc98\ub9ac\ub294 \ud544\uc694\uc5c6\uc9c0\ub9cc, \uc5d0\uc774\uc9d5\uc740 \ud544\uc694\ud558\ub2e4. \uc774\ub7f0 \ucc98\ub9ac\ub294 \ud569\uae08\uc758 \uace0\uc6a9\uccb4(\u56fa\u6eb6\u9ad4), \uacb0\uc815 \uad6c\uc870, \ud569\uae08\uc758 \ubc30\ud569\ubb3c\uc758 \ud3ec\ud654\uc0c1\ud0dc, \ud604\ubbf8\uacbd \ub808\ubca8\uc758 \uc751\uc9d1 \ub4f1\uc758 \uc694\uc18c\uc5d0 \ub300\ud574 \ub9e4\uc6b0 \ubbf8\uc138\ud558\uace0 \uc911\uc694\ud55c \ubcc0\ud654\ub97c \ucd08\ub798\ud55c\ub2e4. \uc790\uc138\ud55c \ub0b4\uc6a9\uc5d0 \ub300\ud574\uc11c\ub294 \uc774 \uae00\uc5d0\uc11c\ub294 \uc0dd\ub7b5\ud558\uae30\ub85c \ud558\uaca0\ub2e4. <\/p>\n

\uc5f4\ucc98\ub9ac\ub97c \ud560 \uc218 \uc5c6\ub294 \ud569\uae08\uc740 \ubcf4\ud1b5 \ub0c9\uac04\ub2e8\uc870(\uf92e\u9593\u935b\u9020)\ub97c \ud1b5\ud574 \uac15\ub3c4(\u5f3a\u5ea6)\ub97c \ub192\uc778\ub2e4. \ub0c9\uac04\ub2e8\uc870\ub294 \uc7ac\uacb0\uc815(\u518d\u7d50\u6676)\uc774 \uc544\ub2c8\ub77c, \uc555\uc5f0, drawing, straightening or flattening \uac19\uc740 \uacf5\uc815\uc744 \ud1b5\ud574 \uad6c\uc870\ub97c \ubcc0\ud654\uc2dc\ud0a8\ub2e4. \uc790\uc804\uac70 \ud504\ub808\uc784\uc6a9\uc758 \ud569\uae08\uc73c\ub85c \uc774\uc6a9\ub418\ub294 \uc608\ub85c\uc11c\ub294, 5086\uc774\ub098 5083\uc774 \uc788\ub2e4. <\/p>\n

\uc5f4\ucc98\ub9ac\ub294 2\ub2e8\uacc4\uc5d0 \uac78\uccd0 \uc774\ub8e8\uc5b4\uc9c4\ub2e4. \uba3c\uc800, 450-550\ub3c4\uc758 \uc628\ub3c4\uc5d0\uc11c \uc218\uc2dc\uac04 \ub3d9\uc548 \uace0\uc6a9\uccb4(\u56fa\u6eb6\u9ad4) \ucc98\ub9ac\ub97c \ud55c\ub2e4. \ub2e4\uc74c\uc73c\ub85c, \uacf5\uae30\uc911 \ud639\uc740 \uc218\uc911(\ud569\uae08\uc5d0 \ub530\ub77c \ub2e4\ub974\ub2e4)\uc5d0\uc11c \uc2e4\uc628\ub0c9\uac01\ud55c \ub2e4\uc74c, \uc5d0\uc774\uc9d5 \ucc98\ub9ac\ub97c \ud55c\ub2e4. \uc5f4\ucc98\ub9ac \ub3c4\uc911 \uc6a9\uc561 \uc0c1\ud0dc\uac00 \ub41c \ubc30\ud569\ubb3c\uc740 \uc751\uc9d1\ud574\uc11c, \uc54c\ubbf8\ub284\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\ub97c \ub192\uc778\ub2e4. \ubc30\ud569\ubb3c\uc758 \uc6a9\ud574\ub3c4\ub97c \ub192\uc774\uace0 \ucc98\ub9ac\uc18d\ub3c4\ub97c \ube68\ub9ac \ud558\uae30 \uc704\ud574 \uc5d0\uc774\uc9d5\uc740 \ubcf4\ud1b5 120-180\ub3c4 \uc815\ub3c4\uc758 \uc870\uac74\ud558\uc5d0\uc11c 8-36\uc2dc\uac04 \uc815\ub3c4\uc5d0 \uac78\uccd0 \uc774\ub8e8\uc5b4\uc9c4\ub2e4. <\/p>\n

3.2. \uc54c\ubbf8\ub284\uc758 \ubb3c\uc131(\u7269\u6027) Aluminum’s Properties <\/p>\n

3.2.1. \ubc00\ub3c4 <\/p>\n

\uccab\ubc88\uc9f8\ub85c \ub2e4\ub8f0 \ubb3c\uc131(\u7269\u6027)\uc778 \ubc00\ub3c4\ub294 \uac00\uc7a5 \uc774\ud574\ud558\uae30 \uc27d\uace0, \ud504\ub808\uc784 \uc18c\uc7ac\ub85c\uc11c\uc758 \uc54c\ubbf8\ub284\uc758 \uac00\uc7a5 \ud070 \uc7a5\uc810\uc774\uae30\ub3c4 \ud558\ub2e4. \uc704\uc5d0\uc11c \uc124\uba85\ud55c \ubc14 \uc788\ub4ef\uc774, \uc54c\ubbf8\ub284\uc758 \ubc00\ub3c4\ub294 \uc2a4\ud2f8\uc758 1\/3, \ud2f0\ud0c0\ub284\uc758 \uc57d \ubc18 \uc815\ub3c4\ub2e4. \uacbd\ub7c9\ud654\uc5d0 \uc8fc\ub825\ud558\uace0 \uc788\ub294 \uc790\uc804\uac70 \uc5c5\uacc4\uc5d0\uac8c \uc788\uc5b4\uc11c \uc54c\ubbf8\ub284\uc740 \uc911\uc694\ud55c \uc704\uce58\ub97c \ucc28\uc9c0\ud558\uac8c \ub418\uc5c8\ub2e4. \uc0ac\uc2e4, \uc54c\ubbf8\ub284\uc5d0 \ub300\ud574\uc11c \uacf5\ubd80\ud558\uba74 \ud560\uc218\ub85d, \uc54c\ubbf8\ub284\uc758 \ubbf8\ub798\ub294 \ubc1d\uac8c \ub290\uaef4\uc9c4\ub2e4. \uc0c8\ub86d\uac8c \uac1c\ubc1c\ub41c \uba87 \uac00\uc9c0\uc758 \uc54c\ubbf8\ub284 \ud569\uae08\uc740 \ud06c\ub85c\ubab0\ub9ac\uc640 \ube44\uc2b7\ud55c \uac15\ub3c4(\u5f3a\u5ea6)\ub97c \uac00\uc9c0\uba74\uc11c, \ubc00\ub3c4\uac00 \ud06c\ub85c\ubab0\ub9ac\uc758 1\/3\ubc16\uc5d0 \uc548\ub41c\ub2e4. \uadf8\ub7ec\ub098, \ud604\uba85\ud55c \ud559\uc0dd \uc5ec\ub7ec\ubd84\uc740, \uac15\ub3c4(\u5f3a\u5ea6)\ub098 \ubc00\ub3c4 \uc774\uc678\uc758 \ub2e4\ub978 \uc694\uc18c\ub3c4 \uace0\ub824\ud574\uc57c \ud55c\ub2e4\ub294 \uc810\uc744 \uc78a\uc9c0 \uc54a\uc558\uc744 \uac83\uc774\ub2e4. <\/p>\n

3.2.2. \uac15\uc131(\u525b\u6027) <\/p>\n

\ub2e4\ub978 \uc18c\uc7ac\uc5d0 \ube44\ud574\uc11c \uc54c\ubbf8\ub284\uc758 \uc601\ub960(\uf961)\uc740 \ub0ae\uc9c0\ub9cc, \ubc00\ub3c4\uac00 \ub0ae\uae30 \ub54c\ubb38\uc5d0 \uc9c1\uacbd\uc774 \ud070 \uacbd\ub7c9 \ud29c\ube0c\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc73c\ubbc0\ub85c, \uc54c\ubbf8\ub284\uc73c\ub85c\ub294 \ub9e4\uc6b0 \uac00\ubcbc\uc6b4 \uc790\uc804\uac70\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub2e4. 2\uc7a5(\u7ae0)\uc5d0\uc11c \uc124\uba85\ud55c \uac83\ucc98\ub7fc, \ud29c\ube0c\uc758 \uc9c1\uacbd\uacfc \ud568\uaed8 \uac15\uc131(\u525b\u6027)\uc740 \uc99d\uac00\ud55c\ub2e4. \uc54c\ubbf8\ub284\uc740 \uac00\ubccd\uae30 \ub54c\ubb38\uc5d0, \ub450\uaebc\uc6b0\uba74\uc11c \uac15\uc131(\u525b\u6027)\uc774 \ub192\uc740 \ud29c\ube0c\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub2e4. \ud504\ub808\uc784\uc758 \uc2b9\ucc28\uac10\uc740 \ub514\uc790\uc778\uc5d0 \uc758\ud574 \uacb0\uc815\ub41c\ub2e4. \uc54c\ub780(Alan)\uacfc \uce90\ub17c\ub370\uc77c(Cannondale)\uc758 \uc790\uc804\uac70\ub294 \ub458 \ub2e4 \uc54c\ubbf8\ub284\uc774\uc9c0\ub9cc, \uc544\ubb34\ub3c4 \uc54c\ub780\uc774 \ub531\ub531\ud558\ub2e4\uac70\ub098 \uce90\ub17c\ub370\uc77c\uc774 \ud0c4\ub825\uc131\uc774 \uc788\ub2e4\uace0\ub294 \ud558\uc9c0 \uc54a\uc744 \uac83\uc774\ub2e4. <\/p>\n

3.2.3. \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027) <\/p>\n

\uc54c\ubbf8\ub284\uc758 \ubb3c\uc131 \uc911\uc5d0\uc11c \uac00\uc7a5 \uba3c\uc800 \ub4e4 \uc218 \uc788\ub294 \ub2e8\uc810\uc740 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774\ub2e4. \uc54c\ubbf8\ub284\uc740 \ubd80\uc11c\uc9c0\uae30 \uc804\uae4c\uc9c0 \uc5b4\ub290 \uc815\ub3c4 \ub298\uc5b4\ub098\ub294\uac00. \uc54c\ubbf8\ub284\uc758 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc740 \ud2f0\ud0c0\ub284\uc5d0\ub294 \ube44\uad50\ud560 \ubc14\uac00 \ubabb\ub418\uace0 \uc2a4\ud2f8\ubcf4\ub2e4 \ub0ae\uc740 \uac83\uc774 \ubcf4\ud1b5\uc774\ub2e4. \ub0ae\uc740 \uc2e0\uc7a5\uc131 \ub54c\ubb38\uc5d0 \ud504\ub808\uc784\uc740 \uae08\uc774 \uac00\uae30 \uc27d\uace0, \uc2e0\uc7a5\ub960\uc774 9% \uc774\ud558\uc758 \uacbd\uc6b0\uc5d0\ub294 \uc0c1\uc138\ud55c \uac80\ud1a0\ub97c \ud544\uc694\ub85c \ud55c\ub2e4. \ud558\uc9c0\ub9cc, \uac15\ub3c4(\u5f3a\u5ea6), \uc778\ub3c4(\u976d\u5ea6), \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) \ub4f1 \uc5ec\ub7ec\uac00\uc9c0 \ub2e4\ub978 \uc694\uc18c\ub3c4 \ub3d9\uc2dc\uc5d0 \uace0\ub824\ud558\uc9c0 \uc54a\uc73c\uba74 \uc548\ub41c\ub2e4\ub294 \uc810\uc740 \uc5ec\ub7ec\ubd84\ub3c4 \uc798 \uc54c \uac83\uc774\ub2e4. <\/p>\n

3.2.4. \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) <\/p>\n

5086\uacfc \uac19\uc740 \uc608\uc678\ub97c \uc81c\uc678\ud558\uba74 \uc54c\ubbf8\ub284 \ud569\uae08\uc740 \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6)\uc758 \ud55c\uacc4\uc810\uc774 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294\ub2e4. \uc989, \uc544\ubb34\ub9ac \uc791\uc740 \ubd80\ud558(\u8ca0\u8377)\ub77c\ub3c4 \ubc18\ubcf5\ub418\uc5b4 \uac00\ud574\uc9c0\uba74 \uacb0\uad6d\uc740 \uc54c\ubbf8\ub284\uc740 \ud53c\ub85c\uc5d0 \uc758\ud574 \ud30c\uad34\ub418\uace0 \ub9cc\ub2e4. \uc880 \uc12c\ub729\ud558\uac8c \ub290\uaef4\uc9c8 \uc9c0\ub3c4 \ubaa8\ub974\uc9c0\ub9cc, \uc54c\ubbf8\ub284\uc740 \uc774 \uc810\uc5d0\uc11c \uc2a4\ud2f8\uc774\ub098 \ud2f0\ud0c0\ub284\uacfc\ub294 \uad6c\ubcc4\ub418\ub294 \uac83\uc774\ub2e4. \uc9c0\uae08 \uc2dc\uc911\uc5d0\ub294 \uc218\ub9ce\uc740 \uc54c\ubbf8\ub284 \ud504\ub808\uc784\uc758 \uc790\uc804\uac70\uac00 \ucd9c\ud558\ub418\uc5b4 \uc788\ub2e4. \uadf8 \uc790\uc804\uac70\ub4e4\uc740 \uacb0\uad6d\uc740 \uc804\ubd80 \ubd80\ub7ec\uc9c8 \uc6b4\uba85\uc778\uac00? \uadf8\ub807\uc9c0\ub294 \uc54a\ub2e4. <\/p>\n

\uadf8\ub7fc \uc5b4\ub5bb\uac8c \uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud560 \uac83\uc778\uac00. \ub098\ub294 \uc774 \uc810\uc5d0 \ub300\ud574\uc11c, \uc774\uc2a4\ud2bc 7005 \ubca0\ub9b4\ub77c\uc774\ud2b8 \ud29c\ube0c\ub97c \uc124\uacc4\ud55c \ucc30\uc988 \ud14c\uc170\uc774\ub77c \uacbd(\u537f)(“Sir” Charles Teixeira, \ud3c9\uc18c\uc5d0\ub294 \ucc99Chuck\ub77c\uace0 \ubd80\ub974\uace0 \uc788\uc9c0\ub9cc)\uc5d0\uac8c \ubb3c\uc5b4 \ubcf8 \uc801\uc774 \uc788\ub2e4. \uadf8\ub294 \uba38\ub9ac\uac00 \uc88b\uc740 \uce5c\uad6c\ub85c, \uc18c\uc7ac\uc5d0 \uad00\ud55c \uac83\uc774\ub77c\uba74 \ubaa8\ub974\ub294 \uac83\uc774 \uc5c6\ub2e4. \uadf8\ub294 \ud29c\ube0c\ub97c \uc124\uacc4\ud560 \ub54c \uba87 \uac00\uc9c0 \uc810\uc5d0 \uc720\uc758\ud55c\ub2e4. \uadf8 \uc911 \ud558\ub098\uac00 \ud544\uc694\ud55c \uacf3\uc5d0\ub294 \uc18c\uc7ac\ub97c \ucda9\ubd84\ud788 \uc0ac\uc6a9\ud55c\ub2e4\ub294 \uc810\uc774\ub2e4. \uc774\uac83\uc740 \uac04\ub2e8\ud558\uac8c \ub4e4\ub9b4 \uc9c0 \ubaa8\ub974\uc9c0\ub9cc \uc2e4\uc81c\ub85c\ub294 \uae5c\ube61\ud558\uae30 \uc26c\uc6b4 \uc6d0\uce59\uc774\ub2e4. \uc2a4\ud2f8\uc758 \uacbd\uc6b0\uc5d0\ub294 \ubc8c\uc368 1\uc138\uae30 \uc804\ubd80\ud130 \uc774 \uc6d0\ub9ac(\ubc84\ud2f0\ub4dc \ud29c\ube0c(butted tube), \uc5ed\uc8fc: \uc77c\ubd80\uc758 \ub450\uaed8\ub97c \ub2e4\ub974\uac8c \ud55c \ud29c\ube0c)\uac00 \uc801\uc6a9\ub418\uace0 \uc788\ub2e4. <\/p>\n

\uc81c\ub300\ub85c \uc124\uacc4\ub41c \ubc84\ud2f0\ub4dc \ud29c\ube0c\ub294 \ud504\ub808\uc784\uc744 \uac00\ubcbc\uc6b0\uba74\uc11c\ub3c4 \uac15\ud558\uac8c \ud560 \uc218 \uc788\ub2e4. \uc2a4\ud2f8\uc758 \uacbd\uc6b0 \uc5b4\ub5a4 \uc0ac\uc774\uc988\uc758 \ud29c\ube0c\uac00 \uc81c\ub300\ub85c \uae30\ub2a5\ud558\ub294 \uac00\ub97c\uacf5\ubd80\ud568\uc73c\ub85c\uc368 \ub2e4\ub978 \uc18c\uc7ac\uc5d0\uc11c\ub294 \uc5b4\ub5a4 \uc2dd\uc73c\ub85c \ud558\uba74 \ub418\ub294\uac00\uc5d0 \uad00\ud55c \ud78c\ud2b8\ub97c \uc5bb\uc744 \uc218\ub3c4 \uc788\ub2e4. \ud14c\uc170\uc774\ub77c\ub294 \ubca0\ub9b4\ub77c\uc774\ud2b8\ub97c \uc124\uacc4\ud560 \ub54c \uc774 \uc810\uc5d0 \uc8fc\ubaa9\ud588\ub2e4. \ubca0\ub9b4\ub77c\uc774\ud2b8\ub294 1990\ub144\uc5d0 \ubc1c\ub9e4\ub418\uc5b4, \ucd5c\ucd08\ub294 \ub355 \ube0c\ub808\ub4dc\ubca0\ub9ac(Doug Bradbury)\uc758 \ub9c8\ub2c8\ud1a0\uc6b0(Manitou) \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\uc5c8\ub2e4. \uc774\uac83\uc774 \uc54c\ubbf8\ub284\uc758 \ubc84\ud2f0\ub4dc \ud29c\ube0c\uac00 \ub110\ub9ac \uc0ac\uc6a9\ub418\uae30 \uc2dc\uc791\ud55c \ucd5c\ucd08\uc758 \uc608\uc774\ub2e4. \uc218\ub144 \uc804\ubd80\ud130 \ud2b8\ub809(Trek)\uc740 \uc54c\ubbf8\ub284 \ubc84\ud2f0\ub4dc \ud29c\ube0c\ub97c \uc774\uc6a9\ud55c \uc790\uc804\uac70\ub97c \ub9cc\ub4e4\uc5b4 \uc654\uc9c0\ub9cc \ucd5c\uadfc\uae4c\uc9c0\ub294 \ub110\ub9ac \ubcf4\uae09\ub418\uc9c0 \uc54a\uc558\ub2e4. \ud074\ub77c\uc778(Klein)\uacfc \uce90\ub17c\ub370\uc77c(Cannondale)\uc740 90\ub144\ub300 \ucd08\ubc18\ubd80\ud130 \uc774\ub7f0 \uc790\uc804\uac70\ub97c \ub9cc\ub4e4\uae30 \uc2dc\uc791\ud574 1994\ub144\uc5d0\ub294 \uc2a4\ud398\uc15c\ub77c\uc774\uc988\ub4dc(Specialized)\uc758 M2\uc5d0\ub3c4 \ubc84\ud2f0\ub4dc \ud29c\ube0c\uac00 \uc0ac\uc6a9\ub418\uae30 \uc2dc\uc791\ud588\ub2e4.(\uc5ed\uc8fc: \uc774 \uae00\uc740 1994\ub144\uc5d0 \uc4f0\uc5ec\uc84c\ub2e4.) <\/p>\n

\ubca0\ub9b4\ub77c\uc774\ud2b8 \ud29c\ube0c\ub294, \ub192\uc740 \uc751\ub825(\u61c9\u529b)\uc774 \uac00\ud574\uc9c0\ub294 \ubd80\uc704\ub294 \ub9e4\uc6b0 \ub450\uaecd\uace0, \uc751\ub825(\u61c9\u529b)\uc774 \uc57d\ud55c \ubd80\ubd84\uc73c\ub85c \uac08\uc218\ub85d \uc587\uc544\uc9c4\ub2e4. \uc774\ub807\uac8c \ubd80\ud558\uac00 \ud29c\ube0c \uc804\uccb4\uc5d0 \ubd84\uc0b0\ub428\uc73c\ub85c\uc368 \ud29c\ube0c\uc758 \uc218\uba85\uc774 \ub298\uc5b4\ub09c\ub2e4. \uc790\uc804\uac70 \ub9cc\ub4e4\uae30\ub294 \ub85c\ucf13 \uacfc\ud559\uc774 \uc544\ub2c8\ub2e4. \uc5bc\ub9c8\ub098 \ud6cc\ub96d\ud558\uac8c \ub514\uc790\uc778\ud558\ub290\ub0d0\uc758 \ubb38\uc81c\uc778 \uac83\uc774\ub2e4. <\/p>\n

3.3. \uc54c\ubbf8\ub284\uc758 \uc7a5\uc810\uc744 \uc0b4\ub9ac\ub824\uba74 Optimizing Aluminum’s Advantages <\/p>\n

\uc54c\ubbf8\ub284\uc758 \uc7a5\uc810\uc744 \uc0b4\ub9ac\uae30 \uc704\ud574\uc11c\ub294, \ub2e8\uc810\uc744 \ud574\uacb0\ud558\uc9c0 \uc54a\uc73c\uba74 \uc548\ub41c\ub2e4. \uadf8 \ubc29\ubc95 \uc911\uc758 \ud558\ub098\uac00, \ud5c8\uc6a9\uc624\ucc28\uc758 \ubc94\uc704\ub97c \ub113\uac8c \uc7a1\ub294 \uac83\uc774\ub2e4. \ubcf5\uc7a1\ud55c \uc598\uae30\ub294 \uc0dd\ub7b5\ud558\uace0, \ud14c\uc170\uc774\ub77c\uc5d0 \uc758\ud558\uba74, \uc54c\ubbf8\ub284 \ud29c\ube0c\uc758 \uc815\uc801\uac15\ub3c4(\u975c\u7684\u5f3a\u5ea6)\ub294 \uc2a4\ud2f8\uc758 3\ubc30 \uc815\ub3c4\ub85c \uc7a1\uc544\uc57c \ud55c\ub2e4. \uc5ec\uae30\uc5d0\ub294 \ub2e4\ub978 \ubcf5\uc7a1\ud55c \uc694\uc778\ub4e4\uc774 \uc791\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0, \uc815\uc801\uac15\ub3c4(\u975c\u7684\u5f3a\u5ea6)\ub97c \uac15\ud654\ud558\ub294 \uac83\ub9cc\uc774 \ucca0\uce59\uc774\ub77c\uace0\ub294 \ud560 \uc218 \uc5c6\ub2e4. \uc694\ucee8\ub300, \uc18c\uc7ac\uc758 \ubcc0\ud615\uc774 \uc801\uc744 \uc218\ub85d \uc751\ub825(\u61c9\u529b)\uc774 \uc791\uc544\uc9c0\uace0 \ud53c\ub85c\uc758 \uac00\ub2a5\uc131\ub3c4 \uc904\uc5b4\ub4e0\ub2e4. \ubd80\ud558(\u8ca0\u8377)\uac00 \uc791\uc740 \ubd80\uc704\uc5d0 \uc751\ub825\uc744 \ubd84\uc0b0\ud558\ub294 \uac83\ub3c4 \ud544\uc694\ud558\ub2e4. \uc774\uac83\uc774 \ubc84\ud2f0\ub4dc \ud29c\ube0c\ub098 \ubcf4\uc870\ud310\uc774 \ud544\uc694\ud55c \uc774\uc720\ub2e4. \ub610\ud55c \uc751\ub825\uc744 \ud29c\ube0c \uc804\uccb4\uc5d0 \ubd84\uc0b0\uc2dc\ud0b4\uc73c\ub85c\uc368 \ud504\ub808\uc784\uc758 \ud0c4\ub825\uc744 \uc99d\uac00\uc2dc\ucf1c \uc2b9\ucc28\uac10\uc744 \uc88b\uac8c \ud55c\ub2e4. <\/p>\n

\ub610 \ud55c \uac00\uc9c0, \uc778\uc704\uc801\uc778 \uc5d0\uc774\uc9d5\uc5d0 \uc2e4\ud328\ud558\uba74 \uc751\ub825\uc5d0 \uc758\ud55c \ubd80\uc2dd\ub3c4 \ubb38\uc81c\uac00 \ub41c\ub2e4. \uc54c\ubbf8\ub284\uc740 \uc758\uc678\ub85c \ubcf5\uc7a1\ud55c \uae08\uc18d\uc778 \uac83\uc774\ub2e4. <\/p>\n

\uc54c\ubbf8\ub284\uc758 \uc7a5\ub798\ub294 \uc5b4\ub5bb\uac8c \ub420\uae4c. \ud14c\uc170\uc774\ub77c\uc5d0\uac8c \uc774 \uc9c8\ubb38\uc744 \ud574 \ubd24\uc9c0\ub9cc, \uc2a4\ud398\uc774\uc2a4 \uc154\ud2c0\uc758 \ubca0\uc5b4\ub9c1\uc774\ub098 F16 \uc804\ud22c\uae30\uc758 \ub525\uc2a4\ud2f1(\uc790\ub3d9\ucc28 \uc624\uc77c\uc758 \uae4a\uc774\ub97c \uc7ac\ub294 \ubd09)\uc5d0 \uc0ac\uc6a9\ub41c\ub2e4, \ub294 \ub4f1\uc758 \uc2e0\uc18c\uc7ac\uac00 \ub4f1\uc7a5\ud560 \uac00\ub2a5\uc131\uc740 \ub9e4\uc6b0 \ud76c\ubc15\ud558\ub2e4. \uc9c4\ubcf4\ub294 \uc788\uaca0\uc9c0\ub9cc, \uad11\uace0 \ub2f4\ub2f9\uc790\uc758 \uc120\uc804 \ubb38\uad6c\ub294 \uc774\uc81c \uac70\uc758 \ud55c\uacc4\uc5d0 \ub2ec\ud558\uace0 \uc788\ub2e4. \uc804\uccb4\uc801\uc73c\ub85c \ubcfc \ub54c, \uc5ed\uc2dc 6061\uc744 \ub2a5\uac00\ud558\ub294 \uc2e0\uc18c\uc7ac\uac00 \ub4f1\uc7a5\ud560 \uac00\ub2a5\uc131\uc740 \ud76c\ubc15\ud558\ub2e4. 6061\uc740 \uac00\uc7a5 \uc735\ud1b5\uc131\uc774 \uc788\ub294 \ud569\uae08\uc73c\ub85c, \uc54c\ubbf8\ub284 \uc911\uc5d0\uc11c\ub3c4 \ud2b9\ud788 \uac15\uc778\ud558\uace0 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\ub3c4 \uc88b\ub2e4. \uace0\uae09 \ud06c\ub85c\ubab0\ub9ac\uc640 \ubcf4\ud1b5\uc758 \ud06c\ub85c\ubab0\ub9ac\ub97c \ube44\uad50\ud558\uba74\uc11c, \uc5b4\ub290 \uacbd\uc6b0\uc5d0\ub4e0 \uc88b\uc740 \uc790\uc804\uac70\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub294 \uac00\ub2a5\uc131\uc774 \uc788\uc73c\uba70, \uc18c\uc7ac\uc758 \uc9c8\uc774 \uc544\ub2c8\ub77c \ud29c\ube0c \ub2e8\uacc4\uc5d0\uc11c \uc5bc\ub9c8\ub098 \ub6f0\uc5b4\ub098\uac8c \ub514\uc790\uc778\ud558\ub290\ub0d0\uac00 \uc911\uc694\ud558\ub2e4\ub294 \uc598\uae30\ub97c \ud55c \uc801\uc774 \uc788\ub2e4. \uc54c\ubbf8\ub284\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\ub2e4. \ubcf4\ub2e4 \uac15\ub3c4(\u5f3a\u5ea6)\uac00 \ub192\uc740 \uc54c\ubbf8\ub284 \ud569\uae08\ub3c4 \uc874\uc7ac\ud558\ub294\ub370, \uc5ec\uae30\uc5d0 \ub300\ud574\uc11c\ub294 \ud2f0\ud0c0\ub284\uacfc \uce74\ubcf8\uc5d0 \ub300\ud574\uc11c \ub17c\ud55c \ub2e4\uc74c 6\uc7a5(\u7ae0)\uc5d0\uc11c \ub2e4\uc2dc \uc5b8\uae09\ud558\uae30\ub85c \ud558\uaca0\ub2e4. \ub2e4\uc74c \uc7a5(\u7ae0)\uc758 \uc8fc\uc81c\ub294 \ud2f0\ud0c0\ub284\uc774\ub2e4. <\/p>\n

4. \ud2f0\ud0c0\ub284 Titanium <\/p>\n

\ud2f0\ud0c0\ub284\uac1c\ubc1c\ud611\ud68c(Titanium Development Association)\ub294, \ud2f0\ud0c0\ub284\uc744 “\uc120\ud0dd\ubc1b\uc740 \uc18c\uc7ac”\ub77c\uace0 \ubd80\ub974\ub294\ub370, \uc790\uc804\uac70 \uc5c5\uacc4 \uad00\uacc4\uc790 \uc911\uc5d0\ub294 \uc5ec\uae30\uc5d0 \ub3d9\uc758\ud558\ub294 \uc0ac\ub78c\ub3c4 \ub9ce\uc744 \uac83\uc774\ub2e4. 4\uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uc774 \uc218\uc218\uaed8\ub07c\uc5d0 \ub36e\uc778 \uace0\uac00\uc758 \uc18c\uc7ac \ud2f0\ud0c0\ub284\uc5d0 \ub300\ud574\uc11c \ub17c\ud55c\ub2e4. \uac00\ubccd\uace0 \uac15\uc778\ud558\uba70 \ud53c\ub85c\ub97c \uc77c\uc73c\ud0a4\uc9c0 \uc54a\uc73c\uba70, \ub9c8\ubc95\uacfc \uac19\uc740 \uc2b9\ucc28\uac10, \uac8c\ub2e4\uac00 \uc5c4\uccad\ub09c \uac00\uaca9… \uc5c5\uacc4 \ub0b4\uc5d0\uc11c \ud2f0\ud0c0\ub284\uc5d0 \ub300\ud55c \ud3c9\uac00\ub294 \ub192\ub2e4. \ud2f0\ud0c0\ub284\uc774 \uc774\ub807\uac8c \ub192\uac8c \ud3c9\uac00\ubc1b\ub294\uc9c0 \uadf8 \ubb3c\uc131\uc744 \uc870\uc0ac\ud574 \ubcf4\uc790. <\/p>\n

\ud2f0\ud0c0\ub284\uc740 \uc0dd\uac01\ubcf4\ub2e4 \ud76c\uadc0\ud55c \uae08\uc18d\uc774 \uc544\ub2c8\ub2e4. \uc54c\ubbf8\ub284, \uc2a4\ud2f8, \ub9c8\uadf8\ub124\uc298 \ub4f1\uc5d0 \uc774\uc5b4\uc11c \ud48d\ubd80\ud55c \uae08\uc18d \uc911\uc758 \ud558\ub098\ub2e4. \uc790\uc804\uac70\uc6a9 \uc2a4\ud2f8\uc758 \ud569\uae08 \uc7ac\ub8cc\ub85c\uc11c \ubd88\uac00\uacb0\ud55c \ud06c\ub86c\uacfc \ubab0\ub9ac\ube0c\ub374\ubcf4\ub2e4 \ud6e8\uc52c \ud48d\ubd80\ud558\uac8c \uc874\uc7ac\ud55c\ub2e4. <\/p>\n

4.1. \ud2f0\ud0c0\ub284\uc758 \ubb3c\uc131(\u7269\u6027) <\/p>\n

4.1.1. \ubc00\ub3c4\uc640 \uac15\uc131(\u525b\u6027) Density and Stiffness <\/p>\n

\uc704\uc5d0\uc11c \uc124\uba85\ud55c \ubc14 \uc788\ub4ef\uc774, \uc54c\ubbf8\ub284\uc758 \ucd5c\ub300\uc758 \uc7a5\uc810\uc740 \ubc00\ub3c4\ub2e4. \ud2f0\ud0c0\ub284\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \ubc00\ub3c4\ub294 \uc7a5\uc810\uc5d0 \ud574\ub2f9\ud55c\ub2e4. \ud2f0\ud0c0\ub284\uc758 \ubc00\ub3c4\ub294 \uc54c\ubbf8\ub284\uc758 2\ubc30 \uc815\ub3c4 \ub418\uc9c0\ub9cc \uadf8\ub798\ub3c4 \uc2a4\ud2f8\uc758 56% \uc815\ub3c4\uc5d0 \uc9c0\ub098\uc9c0 \uc54a\ub294\ub2e4. <\/p>\n

\ub2e4\uc74c\uc73c\ub85c\ub294 \uac15\uc131(\u525b\u6027), \uc989 \uc601\ub960(\uf961)\uc774\ub2e4. \uc790\uc804\uac70 \ud504\ub808\uc784\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ud2f0\ud0c0\ub284\uc758 \uc601\ub960(\uf961)\uc740 1500\ub9ccpsi\ub85c \uc2a4\ud2f8\uc758 \uc57d \ubc18\uc774\ub2e4. \uc989, \uc2a4\ud2f8\uacfc \ud2f0\ud0c0\ub284\uc758 \uc911\ub7c9 \ub2f9 \uac15\uc131(\u525b\u6027)\uc740 \uac70\uc758 \uac19\ub2e4. \ud504\ub808\uc784\uc758 \uac15\uc131(\u525b\u6027)\uc740 \uc18c\uc7ac\uc758 \ubb3c\uc131\ubfd0\ub9cc \uc544\ub2c8\ub77c \uc124\uacc4\uc5d0\ub3c4 \uad00\uacc4\uac00 \uc788\ub2e4\ub294 \uc0ac\uc2e4\uc740 \uc774\ubbf8 \uc124\uba85\ud55c \ubc14 \uc788\uc9c0\ub9cc, \ud2f0\ud0c0\ub284\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\ub2e4. \uc124\uacc4\uc5d0 \ub530\ub77c \ubd80\ub4dc\ub7fd\uac8c\ub3c4 \ub531\ub531\ud558\uac8c\ub3c4 \ub420 \uc218 \uc788\ub2e4. \ub192\uc740 \uac15\ub3c4(\u5f3a\u5ea6), \ub0ae\uc740 \ubc00\ub3c4, \uc911\uac04 \uc815\ub3c4\uc758 \uac15\uc131(\u525b\u6027)\uc774\ub77c\ub294 \ud2f0\ud0c0\ub284\uc758 \uc131\uc9c8\uc5d0 \uae30\ucd08\ud574, \ub300\ubd80\ubd84\uc758 \uc790\uc804\uac70 \uba54\uc774\ucee4\ub294 \ubd80\ub4dc\ub7ec\uc6b0\uba74\uc11c\ub3c4 \ucda9\uaca9 \ud761\uc218\uc131\uc774 \uc88b\uc740 \uc2b9\ucc28\uac10\uc744 \uc2e4\ud604\ud560 \uc218 \uc788\ub3c4\ub85d \ud504\ub808\uc784\uc744 \uc124\uacc4\ud55c\ub2e4. \uadf8\ub7f0\ub370, \ud2f0\ud0c0\ub284\uc73c\ub85c \ucd08\uacbd\ub7c9 \ud504\ub808\uc784\uc744 \ub9cc\ub4e4\ub824\uace0 \ud558\uba74 \uac15\uc131(\u525b\u6027) \ubd80\uc871\uc73c\ub85c \ud504\ub808\uc784\uc774 \ub108\ubb34 \ubd80\ub4dc\ub7ec\uc6cc\uc9c0\ub294 \uc704\ud5d8\uc774 \ubc1c\uc0dd\ud55c\ub2e4. \ucd08\uacbd\ub7c9 \ud504\ub808\uc784\uc744 \uc2e4\ud604\ud558\ub294 \uac83\uc740 \uc5b4\ub5a4 \uc18c\uc7ac\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \uc5b4\ub824\uc6b4 \uc77c\uc774\uc9c0\ub9cc \ud2f0\ud0c0\ub284\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\ub2e4. <\/p>\n

4.1.2. \ud2f0\ud0c0\ub284\uc758 \ucd5c\ub300 \uc7a5\uc810: \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uacfc \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6) Ti’s Real Plus: Elongation and Tensile Strength <\/p>\n

\ud2f0\ud0c0\ub284\uc740 \uc2a4\ud2f8\uc774\ub098 \uc54c\ubbf8\ub284\uacfc \ube44\uad50\ud574\uc11c \ubc00\ub3c4\uc640 \uac15\uc131(\u525b\u6027)\uc5d0 \uc788\uc5b4\uc11c 2\uc704\ub97c \uae30\ub85d\ud558\uace0 \uc788\ub2e4\ub294 \uac83\uc744 \uc54c\uc558\ub2e4. \uc5ec\uae30\uc11c \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc5d0 \ub208\uc744 \ub3cc\ub824 \ubcf4\uba74, \ud2f0\ud0c0\ub284\uc774 \uc2a4\ud2f8\uacfc \uc54c\ubbf8\ub284\uc5d0 \ube44\ud574 \uc555\ub3c4\uc801\uc73c\ub85c \ub6f0\uc5b4\ub098\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uc54c \uc218 \uc788\ub2e4. \ubcf5\uc2b5\ud558\uc790\uba74, \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774\ub780, \uc18c\uc7ac\uac00 \ud30c\uad34\ub418\uae30 \uc804\uc5d0 \uc5bc\ub9c8\ub098 \ud718\ub294\uac00\ub97c \ub098\ud0c0\ub0b4\ub294 \uac83\uc73c\ub85c\uc11c, \ud504\ub808\uc784\uacfc \ud504\ub808\uc784 \ube4c\ub354\uc5d0\uac8c \uc788\uc5b4\uc11c \uc548\uc804\uc131\uc758 \uc911\uc694\ud55c \ucc99\ub3c4\uac00 \ub41c\ub2e4. <\/p>\n

\ud2f0\ud0c0\ub284\uc758 \uc2e0\uc7a5\ub960\uc740 \ub300\uccb4\ub85c 20-30% \uc815\ub3c4\ub2e4. \ucc38\uace0\ub85c, \uc2a4\ud2f8\uc740 10-15%, \uace0\uac15\ub3c4(\u5f3a\u5ea6)\uc758 \uc2a4\ud2f8\uc740 6% \uc815\ub3c4\ub85c \ub9e4\uc6b0 \ub0ae\ub2e4. \uc54c\ubbf8\ub284\uc740 \ubcf4\ud1b5 6-12% \uc815\ub3c4\uc758 \ubc94\uc704\uc5d0 \uc788\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc73c\uba70, \uace0\uac15\ub3c4(\u5f3a\u5ea6)\uc758 \uc54c\ubbf8\ub284\uc758 \uc2e0\uc7a5\ub960\uc740 10% \uc774\ud558\ub2e4. \uc2e0\uc7a5\ub960\uc774 \ub0ae\uc740 \uc18c\uc7ac\ub294 \ubd80\uc11c\uc9c0\uae30 \uc27d\ub2e4\uace0 \ud558\ub294\ub370, \ubd80\uc11c\uc9c0\uae30 \uc27d\ub2e4\ub294 \uac83\uc740 \ud504\ub808\uc784 \uc18c\uc7ac\ub85c\uc11c \ubc14\ub78c\uc9c1\ud558\uc9c0 \uc54a\uc740 \uc810\uc774\ub2e4. <\/p>\n

\ud2f0\ud0c0\ub284\uc740 \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6) \uc5ed\uc2dc \ub9e4\uc6b0 \ub6f0\uc5b4\ub098\ub2e4. \uc790\uc804\uac70\uc5d0 \ub9ce\uc774 \uc774\uc6a9\ub418\ub294 3\/2.5 \ud2f0\ud0c0\ub284 \ud569\uae08\uc758 \ub0c9\uac04\ub2e8\uc870(\uf92e\u9593\u935b\u9020)\uc2dc\uc758 \uc751\ub825\uc644\ud654\uac15\ubcf5\uc810(\u61c9\u529b\u7de9\u548c\u964d\u4f0f\u70b9)\uc740 \ubcf4\ud1b5, 100-130ksi, \ud639\uc740 \uc57d\uac04 \ub192\uc740 \uc815\ub3c4\uc778\ub370, \uc774\uac83\uc740 \uc2a4\ud2f8\uc758 \uc218\uce58\ub97c \ub2a5\uac00\ud55c\ub2e4. \ub610\ud55c \uc774 \uc218\uce58\uac00, \ub6f0\uc5b4\ub09c \uc5f0\uc131(\u5ef6\u6027)\uacfc \uc2a4\ud2f8\uc758 \ubc18 \uc815\ub3c4\uc758 \ubc00\ub3c4\uc640 \ud568\uaed8 \uc5bb\uc5b4\uc9c4\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uc78a\uc9c0 \uc54a\uae30 \ubc14\ub780\ub2e4. \uac8c\ub2e4\uac00 \ub0b4\ud30c\uad34\uc131(\u8010\u7834\u58de\u6027)\uacfc \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6)\uc5d0 \uad00\ud574\uc11c\ub3c4 \uc544\uc9c1 \uc911\uc694\ud55c \uc810\uc774 \ub0a8\uc544 \uc788\ub2e4. <\/p>\n

4.1.3. \ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) Fatigue Strength <\/p>\n

\ud53c\ub85c\uac15\ub3c4(\u5f3a\u5ea6) \uc5ed\uc2dc \ud2f0\ud0c0\ub284\uc758 \ub6f0\uc5b4\ub09c \uc810 \uc911\uc758 \ud558\ub098\ub2e4(\uc5ec\uae30\uae4c\uc9c0 \uc77d\uc740 \ub3c5\uc790 \uc5ec\ub7ec\ubd84\ub4e4\uc740, \uacfc\uc5f0 \ub0b4\uac00 \ud2f0\ud0c0\ub284\uc5d0 \ub300\ud574 \ub098\uc05c \ud3c9\uac00\ub97c \ub0b4\ub9b4 \ub54c\uac00 \uc788\uc744\uae4c, \ud558\uace0 \uc0dd\uac01\ud560 \uc9c0\ub3c4 \ubaa8\ub974\uaca0\ub2e4). \uc55e\uc5d0\uc11c\ub3c4 \uc124\uba85\ud55c \ubc14 \uc788\uc9c0\ub9cc, \ud504\ub808\uc784\uc758 \uc18c\uc7ac\uac00 \uc2e4\uc81c \uc790\uc804\uac70\uc5d0\uc11c \uc788\uc5b4\uc11c \uc5bc\ub9c8\ub098 \uc624\ub798 \uacac\ub51c \uc218 \uc788\ub294\uac00\ub97c \uce21\uc815\ud558\ub294 \uacb0\uc815\uc801\uc778 \ubc29\ubc95\uc740 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294\ub2e4. \uc790\uc804\uac70\ub294 \ubd80\uc815\uae30\uc801\uc73c\ub85c \ub2e4\uc591\ud55c \ubd80\ud558(\u8ca0\u8377)\ub97c \ubc1b\ub294\ub370, \ud2f0\ud0c0\ub284\uc774\ub098 \uc2a4\ud2f8\uc5d0\ub294 \ubd80\ud558\uac00 \uc77c\uc815 \ub808\ubca8 \uc774\ud558\uc778 \uacbd\uc6b0\uc5d0\ub294 \ud30c\uad34\ub418\uc9c0 \uc54a\ub294 \ud55c\uacc4\uac00 \uc874\uc7ac\ud55c\ub2e4. \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc54c\ubbf8\ub284 \ud569\uae08\uc758 \uac70\uc758 \uc804\ubd80(\uba54\ud0c8 \ub9e4\ud2b8\ub9ad\uc2a4\ub97c \ud3ec\ud568\ud574\uc11c)\uc640 \ub9c8\uadf8\ub124\uc298, \ubca0\ub9b4\ub968 \ub4f1\uacfc \uac19\uc740 \uae08\uc18d\uc740 \uadf8\ub7f0 \ud55c\uacc4\uac00 \uc5c6\uae30 \ub54c\ubb38\uc5d0, \uc55e\uc5d0\uc11c \uc124\uba85\ud55c \uac83\ucc98\ub7fc \uc124\uacc4\uac00 \uc911\uc694\ud558\ub2e4. <\/p>\n

4.2. \ud558\uc9c0\ub9cc \ub098\uc05c \ub274\uc2a4\ub3c4… Now for the Bad News… <\/p>\n

\ud558\uc9c0\ub9cc \ud2f0\ud0c0\ub284\uc5d0\ub294 \uba87 \uac00\uc9c0 \ub2e8\uc810\uc774 \uc788\uc5b4\uc11c \ud2f0\ud0c0\ub284\uc774 \uc2dc\uc7a5\uc744 \ub3c5\uc810\ud558\ub294 \uc77c\uc740 \uc5c6\uc744 \uac83\uc774\ub2e4. \uba3c\uc800 \ud2f0\ud0c0\ub284\uc740 \ube44\uc2f8\ub2e4. \uadf8 \uc774\uc720\ub294, \uc81c\ub828(\u88fd\u934a)\uc5d0 \ub4dc\ub294 \uc5d0\ub108\uc9c0 \ube44\uc6a9\uc774 \ub192\uae30 \ub54c\ubb38\uc774 \uc544\ub2c8\ub77c, \uac00\uacf5\uc744 \uc704\ud55c \uc124\ube44\uac00 \ub9e4\uc6b0 \ube44\uc2f8\uae30 \ub54c\ubb38\uc774\ub2e4. <\/p>\n

\ub610 \ud55c \uac00\uc9c0, \ud504\ub808\uc784\uc744 \ub9cc\ub4dc\ub294 \uacf5\uc815\uc5d0\ub3c4 \ubb38\uc81c\uac00 \uc788\ub2e4. \ud2f0\ud0c0\ub284\uc740 \uc6a9\uc811\uacfc \uc808\ub2e8\uc774 \uace4\ub780\ud558\ub2e4\ub294 \uc598\uae30\ub97c \ub4e4\uc740 \uc0ac\ub78c\uc774 \uc788\uc744 \uac83\uc73c\ub85c \uc0dd\uac01\ud558\ub294\ub370, \uc815\ud655\ud558\uac8c\ub294 \uc6a9\uc811\uacfc \uc808\ub2e8\uc758 \ubc29\ubc95\uc774 \ub2e4\ub978 \uc18c\uc7ac\uc640\ub294 \ub2e4\ub974\ub2e4\uace0 \ud560 \uc218 \uc788\ub2e4. \ubb50\uac00 \ub2e4\ub974\ub0d0 \ud558\uba74, \ud2f0\ud0c0\ub284\uc740 \uc5b4\ub5a4 \uacf5\uc815\ub3c4 \uc0dd\ub7b5\ud560 \uc218 \uc5c6\ub2e4\ub294 \uc810\uc774\ub2e4. \ud2f0\ud0c0\ub284\uc744 \uc6a9\uc811\ud560 \ub54c \uc870\uae08\uc774\ub77c\ub3c4 \ubd88\uc21c\ubb3c\uc774 \ub4e4\uc5b4\uac00\uba74 \ud30c\uad34\ub420 \uc704\ud5d8\uc131\uc774 \ub192\uc544\uc9c0\uae30 \ub54c\ubb38\uc5d0, \uc8fc\uc758\uc5d0 \uc8fc\uc758\ub97c \uae30\uc6b8\uc5ec \uac00\uba74\uc11c \uc791\uc5c5\ud558\uc9c0 \uc54a\uc73c\uba74 \uc548\ub41c\ub2e4. <\/p>\n

\uc5bc\ub9c8 \uc804, \uce91\ud130\uc2a4 \ucef5(Cactus Cup) \ub808\uc774\uc2a4\uc5d0\uc11c, \ucf54\ub108\ub97c \ub3c8 \uc9c1\ud6c4 \ud5e4\ub4dc \ud29c\ube0c\uac00 \ubd80\ub7ec\uc838\ubc84\ub9b0 \ud2f0\ud0c0\ub284 \uc790\uc804\uac70\ub97c \ubcf8 \uc801\uc774 \uc788\ub2e4. \uc7a0\uc2dc \uc870\uc0ac\ud574 \ubcf8 \uacb0\uacfc, \ub0b4\uac00 \uc0dd\uac01\ud55c \ub300\ub85c \uc6d0\uc778\uc740 \uc6a9\uc811\ud560 \ub54c \ubd88\uc21c\ubb3c\uc774 \ub4e4\uc5b4\uac04 \uac83\uc774 \uc6d0\uc778\uc774\uc5c8\ub2e4. \ud2f0\ud0c0\ub284\uc740, \uac00\uacf5\uc5d0 \ub530\ub77c \uc774\uc0c1\uc801\uc778 \ud504\ub808\uc784\uc774 \ub420 \uc218\ub3c4 \uc788\uace0 \uc545\ubabd\uc774 \ub420 \uc218\ub3c4 \uc788\ub2e4. \uc815\ud655\ud55c \uc791\uc5c5 \uc18d\ub3c4, \uc18c\uc7ac, \uc808\uc0ad\uc7a5\uce58\ub97c \uc0ac\uc6a9\ud558\uba74 \ubb38\uc81c\uac00 \uc5c6\uc9c0\ub9cc. <\/p>\n

\uc2a4\ud2f8\uc758 \uac00\uc7a5 \ud070 \ub2e8\uc810\uc774 \ubc00\ub3c4, \uc54c\ubbf8\ub284\uc774 \uac15\ub3c4(\u5f3a\u5ea6)\ub77c\uba74, \ud2f0\ud0c0\ub284\uc740 \ubb50\uac00 \ubb38\uc81c\uc77c\uae4c. \uac15\uc131(\u525b\u6027)\uc774\ub2e4. 6\/4 \ud2f0\ud0c0\ub284\uacfc \uac19\uc740 \uace0\uac15\ub3c4(\u5f3a\u5ea6) \uc18c\uc7ac\ub97c \uc0ac\uc6a9\ud574\ub3c4, \ud2f0\ud0c0\ub284\uc758 \uc601\ub960(\uf961)\uc740 \ubcc0\ud654\ud558\uc9c0 \uc54a\ub294\ub2e4. \uc9c1\uacbd\uc774 \ud06c\uace0 \ub450\uaed8\uac00 \uc587\uc544\uc9c8 \uc218\ub85d \uac15\uc131(\u525b\u6027)\uc740 \ub192\uc544\uc9c0\uace0 \ubb34\uac8c\ub294 \uc801\uc5b4\uc9c4\ub2e4. \ud558\uc9c0\ub9cc, \ucd08\uacbd\ub7c9\uc758 \ud504\ub808\uc784\uc744 \ud604\uc7ac\uc758 \uac00\uacf5\ubc95\uc73c\ub85c \ub9cc\ub4e4\ub824\uace0 \ud558\uba74, \ub9e5\uc8fc \uce94 \ud6a8\uacfc\ub97c \ud53c\ud560 \uc218\uac00 \uc5c6\ub2e4. \uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uba87\uba87 \uba54\uc774\ucee4\uc5d0\uc11c\ub294 \ud29c\ube0c\uc758 \uc548\ud30e\uc5d0 \ubc84\ud2f0\ub4dc \uac00\uacf5\uc744 \ud558\uac70\ub098, \ud29c\ube0c\ub97c \ubcc0\ud615\uc2dc\ud0a4\uac70\ub098, \ud639\uc740 \uc77c\uccb4\uc131\ud615(\u4e00\u9ad4\u6210\u5f62)(monocoque) \uc744 \ud558\uac70\ub098, \ud639\uc740 \uc774\ub7f0 \ubc29\ubc95\ub4e4\uc744 \uc870\ud569\ud55c \uc790\uc804\uac70\ub97c \uc120\ubcf4\uc774\uace0 \uc788\ub2e4. \uac00\ubccd\uace0 \uac15\ub3c4(\u5f3a\u5ea6)\uac00 \ub192\uc73c\uba74\uc11c \uac15\uc131(\u525b\u6027)\ub3c4 \ucda9\ubd84\ud55c \ud504\ub808\uc784\uc744 \ub514\uc790\uc778\ud558\ub294 \uac83\uc740 \uc9c0\uae08\ubd80\ud130\uc758 \uacfc\uc81c\ub2e4. <\/p>\n

\ud504\ub808\uc784 \uc18c\uc7ac\ub85c\uc11c \ud2f0\ud0c0\ub284\uc758 \uc7a5\ub798\ub294 \uc5b4\ub5a8\uae4c? \ub9c8\ubc95\uc758 \uae08\uc18d\uc73c\ub85c\uc11c\uc758 \ud2f0\ud0c0\ub284\uc758 \ud3c9\uac00\ub294 \ub2f9\ubd84\uac04\uc740 \ubcc0\ud558\uc9c0 \uc54a\uc744 \uac83\uc774\ub2e4. \ud558\uc9c0\ub9cc, \uc81c\uc870\uae30\uc220\uc774 \uc9c4\ubcf4\ud574, \uac15\ub3c4(\u5f3a\u5ea6)\uc640 \uac00\uaca9\uc758 \uc591\uba74\uc5d0\uc11c \ub6f0\uc5b4\ub09c \ud488\uc9c8\uc744 \uc81c\uacf5\ud558\uac8c \ub420 \uc54c\ubbf8\ub284\uc774 \uc55e\uc73c\ub85c \ud2f0\ud0c0\ub284\uc758 \uc790\ub9ac\ub97c \uc704\ud611\ud558\uac8c \ub420 \uac83\uc774 \ud2c0\ub9bc\uc5c6\ub2e4. \ubb3c\ub860 \ud2f0\ud0c0\ub284 \uc790\uc804\uac70 \uba54\uc774\ucee4\ub3c4 \uc190\uc744 \ub192\uace0 \uad6c\uacbd\ub9cc \ud558\uace0 \uc788\uc9c0\ub294 \uc54a\uc744 \uac83\uc774\ub2e4. \ud2f0\ud0c0\ub284 \uc790\uc804\uac70\uc758 \uac70\uc778\uc778 \ub77c\uc774\ud2b8\uc2a4\ud53c\ub4dc(Litespeed)\uc0ac\ub294 1,000 \ub2ec\ub7ec \uc815\ub3c4\uc758 \uac00\uaca9\uc73c\ub85c \ub6f0\uc5b4\ub09c \ub85c\ub4dc \ub808\uc774\uc11c\uc640 MTB\ub97c \uc81c\uacf5\ud558\uae30 \uc2dc\uc791\ud558\uace0 \uc788\ub2e4. \ucd08\uc800\uac00\uaca9\uc758 \ud2f0\ud0c0\ub284 \uc790\uc804\uac70\ub294 \uc544\ub9c8 \ub4f1\uc7a5\ud558\uc9c0 \uc54a\uaca0\uc9c0\ub9cc, \ud29c\ube0c\ub098 \uc790\uc804\uac70 \uc81c\uc870\uae30\uc220\uc774 \uafb8\uc900\ud788 \ubc1c\uc804\ud560 \uac83\uc774\ubbc0\ub85c, \ud2f0\ud0c0\ub284\uc758 \uc218\uc694\uc640 \ud3c9\uac00\ub294 \uc77c\uc815 \uae30\uac04 \ub5a8\uc5b4\uc9c0\uc9c0 \uc54a\uc744 \uac83\uc73c\ub85c \uc0dd\uac01\ub41c\ub2e4. <\/p>\n

\ub2e4\uc74c \uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uce74\ubcf8\uc744 \ub2e4\ub8e8\uae30\ub85c \ud558\uc790. <\/p>\n

5. \uce74\ubcf8\uc758 \uc555\ub3c4\uc801\uc778 \uc7a0\uc7ac\uc131 Carbon Fiber Boasts Tremendous Potential <\/p>\n

4\uc7a5(\u7ae0)\uae4c\uc9c0 \uc77d\uc5c8\ub2e4\uba74, \uc2a4\ud2f8, \uc54c\ubbf8\ub284, \ud2f0\ud0c0\ub284 \uc790\uc804\uac70\ub97c \ub9cc\ub4e4 \ub54c \uc911\uc694\ud55c \ubb3c\uc131(\u7269\u6027)\uc5d0 \ub300\ud574 \ub9ce\uc740 \uac83\uc744 \ubc30\uc6e0\uc744 \uac83\uc774\ub2e4. \uc774 \uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \ube44\uae08\uc18d\uc778 \uce74\ubcf8\uc744 \uc0ac\uc6a9\ud55c \ud504\ub808\uc784\uc5d0 \ub300\ud574\uc11c \uacf5\ubd80\ud574 \ubcf4\uae30\ub85c \ud558\uc790. <\/p>\n

5.1. \ubcf5\ud569\uc7ac \uce74\ubcf8\uc758 \ub180\ub77c\uc6b4 \uc138\uacc4 The Wonderful World of Composites <\/p>\n

\ubcf5\ud569\uc7ac\ub77c\ub294 \uc6a9\uc5b4\uc640 \uce74\ubcf8\uc774\ub77c\ub294 \uc6a9\uc5b4\ub294 \ub3d9\uc758\uc5b4\ub85c \uc0ac\uc6a9\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc740\ub370, \ubaa8\ub4e0 \ubcf5\ud569\uc7ac\uac00 \uce74\ubcf8\uc778 \uac83\uc740 \uc544\ub2c8\ub2e4. \ud569\ud310\uc774\ub098 \ucf58\ud06c\ub9ac\ud2b8\ub3c4 \ubcf5\ud569\uc7ac\ub2e4. \ubcf5\ud569\uc7ac\ub780, \uc18c\uc7ac\ub97c \uc870\ud569\ud568\uc73c\ub85c\uc368 \uac1c\uac1c\uc758 \uc18c\uc7ac\uc5d0\ub294 \uc5c6\ub294 \uc0c8\ub85c\uc6b4 \uc131\uc9c8\uc744 \ubd80\uc5ec\ud55c \uac83\uc744 \ub9d0\ud55c\ub2e4. \uc608\ub97c \ub4e4\uba74, \ucf58\ud06c\ub9ac\ud2b8\ub294 \uc2dc\uba58\ud2b8, \ubaa8\ub798, \uc790\uac08, \ubb3c\ub85c \uc774\ub8e8\uc5b4\uc9c4 \ubcf5\ud569\uc7ac\ub2e4. <\/p>\n

\uc880 \ub354 \uacfc\ud559\uc801\uc73c\ub85c \ub9d0\ud558\uba74, \ubcf5\uc7a1\uc7ac\ub780, \uc785\uc790, \ub2e8(\u77ed)\uc12c\uc720, \uc7a5(\u9577)\uc12c\uc720\uac00 \ub9e4\ud2b8\ub9ad\uc2a4 \uc18d\uc5d0 \uc874\uc7ac\ud558\ub294 \ubb3c\uac74\uc744 \ub9d0\ud55c\ub2e4. \uc608\ub97c \ub4e4\uba74 \uc2a4\ud398\uc15c\ub77c\uc774\uc988\ub4dc\uc758 M2\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub4c0\ub784\uce94 \uba54\ud0c8 \ub9e4\ud2b8\ub9ad\uc2a4(Duralcan metal matrix)\ub294, \uc0b0\ud654 \uc54c\ubbf8\ub284\uc758 \ubbf8\uc138\ud55c \uc12c\uc720\uac00 6061 \uc54c\ubbf8\ub284 \ub0b4\ubd80\uc5d0 \ubd84\uc0b0\ub418\uc5b4 \uc788\ub294 \uad6c\uc870\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4. \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc120\uc9c4 \ubcf5\ud569\uc7ac\ub294, \ubcf4\ud1b5 \uc5d0\ud3ed\uc2dc \uc218\uc9c0\uc5d0 \uc811\ucc29\ud55c \ub9e4\ud2b8\ub9ad\uc2a4\uc5d0 \uc7a5(\u9577)\uc12c\uc720\ub97c \uc870\ud569\ud55c \uac83\uc774\ub2e4. \uc120\uc9c4\uc801\uc778 \ubcf5\ud569\uc7ac\uac00 \ub418\uae30 \uc704\ud574\uc11c\ub294, \uc77c\ubc18\uc801\uc73c\ub85c \uc12c\uc720\uac00 \uae38\uace0, \uccb4\uc801(\u9ad4\u7a4d)\uacfc \uc12c\uc720\uc758 \ube44\uc728\uc774 50% \uc774\uc0c1\uc774 \ub418\uba70, \uc720\ub9ac\uc12c\uc720(\uae00\ub798\uc2a4 \ud30c\uc774\ubc84)\ubcf4\ub2e4 \uae30\uacc4\uc801 \uc131\uc9c8\uc774 \ub6f0\uc5b4\ub098\uc57c \ud55c\ub2e4. <\/p>\n

\uc12c\uc720\uc5d0\ub294 \uce74\ubcf8, \ucf00\ube14\ub77c, \ubcf4\ub860, \uc138\ub77c\ubbf9, \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc, \uc218\uc815, \ud3f4\ub9ac\uc5d0\uce60\ub80c \ub4f1 \uc5ec\ub7ec\uac00\uc9c0\uac00 \uc788\ub2e4. \uadf8 \uc678\uc5d0 \ub0b4\uac00 \uc798 \ubaa8\ub974\ub294 \uac83\ub4e4\ub3c4 \uc788\ub2e4. <\/p>\n

5.2. \uac04\ub2e8\ud55c \uc6a9\uc5b4\uc9d1 A Simple Lexicon <\/p>\n

\uc5ec\uae30\uc11c, \uc774 \uc7a5(\u7ae0)\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc6a9\uc5b4\ub4e4\uc5d0 \ub300\ud574\uc11c \uac04\ub2e8\ud558\uac8c \uc815\uc758\ud558\uace0 \ub118\uc5b4\uac00\uc790. \uc12c\uc720\ub780, \uc77c\ub82c\ub85c \ub298\uc5b4\uc120 \uac15\ud654\uc18c\uc7ac\ub97c \uc758\ubbf8\ud55c\ub2e4. \uc774\ub7f0 \ud3c9\ud589\ud55c \uc12c\uc720 \ub2e4\ubc1c\uc744 \uc811\ucc29\uc81c(\ub9e4\ud2b8\ub9ad\uc2a4)\ub97c \uc774\uc6a9\ud574\uc11c \ud55c \ub370 \ubb36\ub294\ub2e4. \ub2e8\uce35\uc758 \ub9e4\ud2b8\ub9ad\uc2a4\ub97c \uce35(\u5c64), \uc5ec\ub7ec \uce35\uc73c\ub85c \uc774\ub8e8\uc5b4\uc9c4 \uac83\uc744 \uc801\uce35(\u7a4d\u5c64)(\ub77c\ubbf8\ub124\uc774\ud2b8)\ub77c\uace0 \ud55c\ub2e4. \uac01\uac01\uc758 \uce35\uc744 \ub2e4\ub978 \ubc29\ud5a5\uc73c\ub85c \uacb9\uce68\uc73c\ub85c\uc368 \uc801\uce35(\u7a4d\u5c64)\uc758 \uc131\uc9c8\uc744 \ubcc0\ud654\uc2dc\ud0ac \uc218\uac00 \uc788\ub2e4. \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6)\ub098 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uacfc \uac19\uc740 \uc6a9\uc5b4\ub97c \ubc8c\uc368 \uc78a\uc5b4\ubc84\ub838\ub2e4\uba74 \ub2e4\uc2dc \ud55c \ubc88 1\uc7a5(\u7ae0)\uc744 \ubcf5\uc2b5\ud574 \uc8fc\uae30\ub97c \ubc14\ub780\ub2e4. \uc774 \uc6a9\uc5b4\ub4e4\uc740 \uc9c0\uae08\ubd80\ud130\uc758 \uc124\uba85\uc744 \uc774\ud574\ud558\ub294 \ub370 \uc788\uc5b4\uc11c \ubd88\uac00\uacb0\ud558\uae30 \ub54c\ubb38\uc774\ub2e4. <\/p>\n

5.3. \ub354\ud560 \ub098\uc704 \uc5c6\ub294 \uc218\uce58 The Numbers Look Good <\/p>\n

\uce74\ubcf8\uc758 \uc0ac\uc591\ud45c(\u4ed5\u6a23\u8868)\ub97c \ubcf4\uba74, \ub2e4\ub978 \uc18c\uc7ac\ub85c \uc790\uc804\uac70\ub97c \ub9cc\ub4e0\ub2e4\ub294 \uac83\uc774 \uc544\ubb34 \uc758\ubbf8\uac00 \uc5c6\uc744 \uc815\ub3c4\ub85c \ud6cc\ub96d\ud55c \uc18c\uc7ac\ub2e4. \ud558\uc9c0\ub9cc \uc790\uc804\uac70 \ubc14\ubcf4 \ud559\uad50\uc758 \ud559\uc0dd\uc778 \uc5ec\ub7ec\ubd84\ub4e4\uc740, \uc138\uc0c1\ub9cc\uc0ac \uc218\uce58\uac00 \uc804\ubd80\uac00 \uc544\ub2c8\uace0, \uc77d\uae30 \ud798\ub4e4 \uc815\ub3c4\ub85c \uc791\uc740 \uae00\uc528\ub85c \uc778\uc1c4\ub41c \uc8fc\uc758\uc0ac\ud56d\ub3c4 \uc911\uc694\ud558\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uc798 \uc54c\uace0 \uc788\uc744 \uac83\uc774\ub2e4. \uadf8\ub9ac\uace0 \ud55c \uac00\uc9c0 \ub354. \uce74\ubcf8\uc5d0 \uad00\ud574\uc11c\ub294 \uc9c0\uae08\uae4c\uc9c0 \uc5ec\ub7ec\ubd84\ub4e4\uc774 \ubc30\uc6cc \uc628 \ubaa8\ub4e0 \uc0ac\uc2e4\ub4e4\uc774 \uc801\uc6a9\ub418\uc9c0 \uc54a\ub294\ub2e4\ub294 \uc810\ub3c4 \uc720\uc758\ud574 \uc8fc\uae30 \ubc14\ub780\ub2e4. <\/p>\n

\ud504\ub808\uc784 \uc18c\uc7ac\ub85c\uc11c\uc758 \ubcf5\ud569\uc7ac\uc758 \uc7a0\uc7ac\uc131\uc740 \ud655\uc2e4\ud788 \ub300\ub2e8\ud558\ub2e4. \uadf8\ub7ec\ub098 \ubd88\ud589\ud558\uac8c\ub3c4, \ubcf5\ud569\uc7ac\ub85c \ud504\ub808\uc784\uc744 \ub9cc\ub4dc\ub294 \uac83\uc740 \uc26c\uc6b4 \uc77c\uc774 \uc544\ub2c8\ub2e4. \ubcf5\ud569\uc7ac \ud504\ub808\uc784\uc774 \uc9c0\uae08\uae4c\uc9c0 \ud574\uacb0\ud558\uc9c0 \ubabb\ud558\uace0 \uc788\ub294 \ub192\uc740 \ud30c\uad34\uc728\uc5d0\ub294 \uc774\uc720\uac00 \uc788\ub294\ub370, \uadf8\uac83\uc740 \uc18c\uc7ac \uc790\uccb4\uc758 \ubb38\uc81c\uac00 \uc544\ub2c8\ub2e4. \ubbff\uae30 \ud798\ub4e0 \uc77c\uc774\uc9c0\ub9cc, \ub85c\ucf13 \uacfc\ud559\uc790\uc870\ucc28\ub3c4 \uc2e4\uc218\ub97c \ud558\ub294 \uc218\uac00 \uc788\ub2e4. \ubcf5\ud569\uc7ac\uac00 \ub193\uc5ec\uc838 \uc788\ub294 \uc0c1\ud669\uc740, 70\ub144\ub300\uc5d0 \ud2f0\ud0c0\ub284\uc774 \ucc98\ud574 \uc788\ub358 \uc0c1\ud669\uacfc \ube44\uc2b7\ud558\ub2e4. \ub2f9\uc2dc \ud154\ub808\ub2e4\uc778(Teledyne)\uc0ac\uac00 \ub9cc\ub4e0 \ud2f0\ud0c0\ub284 \ud504\ub808\uc784\uc740 \uc798 \ubd80\ub7ec\uc84c\ub294\ub370, \uadf8\uac83\uc740 \ud2f0\ud0c0\ub284 \uc790\uccb4\uc5d0 \ubb38\uc81c\uac00 \uc788\uc5b4\uc11c\uac00 \uc544\ub2c8\uace0, \uc124\uacc4, \ubcf4\ub2e4 \uc815\ud655\ud788 \uc598\uae30\ud558\uba74 \ub514\uc790\uc778\uc744 \uc2e4\uc81c \ud504\ub808\uc784\uc5d0 \uc801\uc6a9\ud558\ub294 \uacf5\uc815\uc774 \ub098\ube74\uae30 \ub54c\ubb38\uc774\uc5c8\ub2e4. \uce74\ubcf8\uc758 \uacbd\uc6b0\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\uc5ec\uc11c, \ub180\ub77c\uc6b4 \uc7a0\uc7ac\uc131\uc774 \ucda9\ubd84\ud788 \uc2e4\ud604\ub418\uc9c0 \ubabb\ud558\uace0 \uc788\ub2e4. <\/p>\n

\ud504\ub808\uc784 \ub514\uc790\uc774\ub108\uac00 \ud504\ub808\uc784\uc758 \ubcf5\uc7a1\uc131\uc744 \uacbd\uc2dc\ud558\ub294 \uacbd\uc6b0\uac00 \uc788\ub294 \uac83\ub3c4 \ubb38\uc81c\ub2e4. \uce74\ubcf8\uc758 \uad6c\uc870\ub294 \uae08\uc18d\uacfc \ub2ec\ub77c\uc11c, \uc870\uae08\uc758 \uc2e4\uc218\ub3c4 \uc6a9\ub0a9\ub418\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 \uc124\uacc4\uc640 \uc870\ub9bd\uc774 \ub9e4\uc6b0 \uc911\uc694\ud558\ub2e4. \uacbd\uc6b0\uc5d0 \ub530\ub77c\uc11c\ub294, \uc124\uacc4\uc640 \uc870\ub9bd \uc774\uc678\uc758 \ubd80\ubd84\uc73c\ub85c\ubd80\ud130\ub3c4 \ubb38\uc81c\uac00 \ucd08\ub798\ub420 \uc218\ub3c4 \uc788\ub2e4(\uc608\ub97c \ub4e4\uba74, \ub2e4\uc6b4 \ud29c\ube0c\uc5d0 \ub3cc\uc774 \ubd80\ub52a\ud788\ub294 \uacbd\uc6b0). \uc774\ub7f0 \ucda9\uaca9\uc5d0 \uc758\ud574, \ube44\ub85d \ud29c\ube0c\uac00 \ubd80\ub7ec\uc9c0\uc9c0\ub294 \uc54a\ub294\ub2e4\uace0 \ud558\ub354\ub77c\ub3c4, \ucda9\uaca9\uc758 \uc601\ud5a5\uc740 \ud504\ub808\uc784 \ub0b4\ubd80\uc5d0 \ucd95\uc801\ub418\ub294 \uacbd\uc6b0\uac00 \uc788\ub2e4. \uce74\ubcf8 \ub9e4\ud2b8\ub9ad\uc2a4 \ub0b4\ubd80\uc5d0 \ubbf8\uc138\ud55c \uae08\uc774 \uac00\uc11c, \uacb0\uad6d\uc740 \ubd80\ud558\ub97c \ud761\uc218\ud558\ub294 \ub2a5\ub825\uc744 \uac10\uc18c\uc2dc\ud0a8\ub2e4. \uae08\uc18d \ud504\ub808\uc784\ub3c4 \uc608\uace0 \uc5c6\uc774 \ubd80\ub7ec\uc9c0\ub294 \uacbd\uc6b0\uac00 \uc788\uc9c0\ub9cc, \uc774 \uc810\uc5d0 \uc788\uc5b4\uc11c\ub294 \uadf8\ub798\ub3c4 \uce74\ubcf8\ubcf4\ub2e4\ub294 \uae08\uc18d\uc774 \ub0ab\ub2e4. <\/p>\n

5.4. \uc801\uce35(\u7a4d\u5c64)\ubc29\ubc95\uc774 \ubaa8\ub4e0 \uac83\uc744 \uacb0\uc815\ud55c\ub2e4 It’s All in the Lay-Up <\/p>\n

\ud55c \uac00\uc9c0 \uac15\uc870\ud558\uace0 \uc2f6\uc740 \uc810\uc740, \ubcf5\ud569\uc7ac\ub294 \ub9e4\uc6b0 \ubcf5\uc7a1\ud55c \ubb3c\uac74\uc774\uc5b4\uc11c, \uae08\uc18d\ubcf4\ub2e4 \ucde8\uae09\uc774 \ubcf5\uc7a1\ud558\ub2e4\ub294 \uc0ac\uc2e4\uc774\ub2e4. \uc18c\uc7ac \uc790\uccb4\uac00 \ub9e4\uc6b0 \ubcf5\uc7a1\ud55c \ub370\ub2e4, \uae08\uc18d\uacfc\ub294 \ub2ec\ub9ac \uad6c\uc870\uac00 \ub2e8\uc21c\ud558\uc9c0\uac00 \uc54a\ub2e4. \uc704\uc5d0\uc11c \uc77d\uc5c8\uaca0\uc9c0\ub9cc, \uae08\uc18d \ud504\ub808\uc784\uc744 \ub514\uc790\uc778\ud560 \ub54c\ub294, \uc18c\uc7ac\uc640 \uc124\uacc4(\ud29c\ube0c\uc758 \uc9c1\uacbd\uc774\ub098 \ub450\uaed8 \ub4f1)\uc758 2\uac00\uc9c0\ub97c \uace0\ub824\ud558\uba74 \ub41c\ub2e4. \ud558\uc9c0\ub9cc \ubcf5\ud569\uc7ac\uc758 \uacbd\uc6b0\uc5d0\ub294, \uc5ec\uae30\uc5d0 \ub354\ud574 \uc801\uce35(\u7a4d\u5c64)\ubc29\ubc95\uc774\ub77c\ub294 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uc9c0 \uc54a\uc73c\uba74 \uc548\ub41c\ub2e4. \uac19\uc740 \uc18c\uc7ac\uc640 \uac19\uc740 \uc124\uacc4\uc758 \ud504\ub808\uc784\uc774\ub77c\ub3c4, \uce35(\u5c64)\uad6c\uc870\uac00 \ub2e4\ub974\uba74 \uc804\ud600 \ub2e4\ub978 \ubb3c\uac74\uc774 \ub418\uc5b4\ubc84\ub9b0\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uc78a\uc9c0 \ub9d0\uc544 \uc8fc\uae30 \ubc14\ub780\ub2e4. \uac15\uc131(\u525b\u6027)\uc740 \ub9d0\ud560 \uac83\ub3c4 \uc5c6\uace0, \ud30c\uad34\uc751\ub825(\u61c9\u529b)\uacfc \ubd80\ub7ec\uc9c0\ub294 \uc591\uc0c1\ub3c4 \ub2ec\ub77c\uc9c4\ub2e4. \ubd80\ub7ec\uc9c0\ub294 \uc6d0\uc778(\uc801\uce35(\u7a4d\u5c64)\uc758 \ud3ed\ubc1c, \uc81c1\uce35\uc758 \ud30c\uad34, \ub9e4\ud2b8\ub9ad\uc2a4\uac00 \uc12c\uc720\uc5d0\uc11c \ubc97\uaca8\uc9c0\uac70\ub098, \ub9e4\ud2b8\ub9ad\uc2a4\uc5d0 \uae08\uc774 \uac00\ub294 \uacbd\uc6b0\ub3c4 \uc788\uace0, \uce35\uc774 \ubc97\uaca8\uc9c0\ub294 \uc77c\ub3c4 \uc788\ub2e4)\ub3c4 \uae08\uc18d\uacfc\ub294 \ube44\uad50\ud560 \uc218 \uc5c6\uc744 \uc815\ub3c4\ub85c \ub2e4\uc591\ud558\ub2e4, <\/p>\n

\ub610 \ud55c \uac00\uc9c0 \ubb38\uc81c\ub294 \ud504\ub808\uc784\uc758 \ud615\uc0c1\uc774\ub2e4. \ud2b8\ub809(Trek)\uc774\ub098 \uc790\uc774\uc5b8\ud2b8(Giant)\ucc98\ub7fc \uc811\ucc29\ud558\ub294 \uac83\ub3c4 \uac00\ub2a5\ud558\uace0, \ucf00\uc2a4\ud2b8\ub810(Kestrel)\uc774\ub098 \ub8e9(Look )\ucc98\ub7fc \ub3c5\uc790\uc801\uc778 \ubc29\ubc95\uc73c\ub85c \uc870\ub9bd\ud560 \uc218\ub3c4 \uc788\ub2e4. \uc811\ucc29\uc744 \uc774\uc6a9\ud55c \ud504\ub808\uc784\uc774\ub77c\uba74 \uc801\uc5b4\ub3c4 \uae08\uc18d \ud504\ub808\uc784\uc744 \ucc38\uace0\ud560 \uc218 \uc788\ub2e4. \ud558\uc9c0\ub9cc \uc804\ud600 \uc0c8\ub85c\uc6b4 \ud615\uc0c1\uc744 \ub9cc\ub4e4\ub824\uba74 \ubaa8\ub4e0 \uacc4\uc0b0\uc744 \ucc98\uc74c\ubd80\ud130 \ub2e4\uc2dc \ud558\uc9c0 \uc54a\uc73c\uba74 \uc548\ub41c\ub2e4. <\/p>\n

5.5. \uce74\ubcf8\uc758 \ubb3c\uc131(\u7269\u6027) <\/p>\n

5.5.1. \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6), \uc555\ucd95\uac15\ub3c4(\u5f3a\u5ea6) Tensile and Compressive Strength <\/p>\n

\uce74\ubcf8\uc758 \ubb3c\uc131(\u7269\u6027)\uc744 \uc54c\ubbf8\ub284, \ud2f0\ud0c0\ub284, \uc2a4\ud2f8\uacfc \ube44\uad50\ud574 \ubcf4\uc790. \uc778\uc7a5\uac15\ub3c4(\u5f15\u5f35\u5f3a\u5ea6)\ub294 \uc18c\uc7ac\uac00 \ubd80\ub7ec\uc9c8 \ub54c\uae4c\uc9c0 \uc7a1\uc544\ub2f9\uae30\ub294 \uc2e4\ud5d8\uc73c\ub85c \uce21\uc815\ud55c\ub2e4. \ud55c \ub2e4\ubc1c\uc758 \uce74\ubcf8 \uc12c\uc720\ub97c \uc7a1\uc544\ub2f9\uae30\ub294 \uc2e4\ud5d8\uc744 \ud558\uba74 \uadf8 \uacb0\uacfc\ub294 \uc5b4\ub5a8\uae4c. \uaf64 \uc88b\uc740(\uc5c4\uccad\ub098\uac8c \uc88b\uc740) \uacb0\uacfc\uac00 \ub098\uc628\ub2e4. <\/p>\n

\uadf8\ub7fc, \uc5ec\ub7ec \ub2e4\ubc1c\uc758 \uce74\ubcf8 \uc12c\uc720\ub97c \uc555\ucd95\ud55c \uacbd\uc6b0\uc5d0\ub294 \uc5b4\ub5bb\uac8c \ub420\uae4c. \uc2e4\ub9dd\uc2a4\ub7fd\uac8c\ub3c4 \uacb0\uacfc\ub294 \ubcc4\ub85c\ub2e4. \uc2a4\ud30c\uac8c\ud2f0\ucc98\ub7fc \ubb3c\ub801\ubb3c\ub801\ud574\uc9c4\ub2e4. \uadf8\ub798\uc11c, \uce74\ubcf8\uc740 \uc5fc\ucd95\uac15\ub3c4(\u53ad\u7e2e\u5f3a\u5ea6)\ub97c \ub192\uc5ec\uc904 \ud544\uc694\uac00 \uc788\ub2e4. \uc5ec\uae30\uc5d0 \uc0ac\uc6a9\ud558\ub294 \uc811\ucc29\uc81c\uac00 \ub9e4\ud2b8\ub9ad\uc2a4\uc778\ub370, \uc5ec\ub7ec \ub2e4\ubc1c\uc758 \uc12c\uc720\ub97c \uc5f0\uacb0\ud574\uc11c \uc12c\uc720\uc640 \uc12c\uc720, \uce35\uacfc \uce35 \uc0ac\uc774\uc5d0\uc11c \ubd80\ud558(\u8ca0\u8377)\ub97c \uc804\ub2ec\ud558\ub294 \uc5ed\ud560\uc744 \ud55c\ub2e4. \ub9e4\ud2b8\ub9ad\uc2a4\uc640 \uc12c\uc720\uac00 \uacb0\ud569\ub41c \uad6c\uc870\ubb3c\uc774 \ubcf5\ud569\uc7ac\uc778\ub370, \uc774\ud558\uc5d0\uc11c\ub294 \uc774 \ub450\uac00\uc9c0\ub97c \ud55c \ub369\uc5b4\ub9ac\ub85c \ubcf4\uae30\ub85c \ud55c\ub2e4. <\/p>\n

5.5.2. \ubc00\ub3c4\uc640 \uac15\uc131(\u525b\u6027) Density and Modulus <\/p>\n

\uc0ac\uacfc\uc640 \ubc00\uac10\uc744 \ube44\uad50\ud558\ub294 \uac8c \ub420 \uc9c0 \ubaa8\ub974\uaca0\uc9c0\ub9cc, \uce74\ubcf8\uc758 \uc801\uce35(\u7a4d\u5c64)\uc5d0 \ub300\ud55c \uc77c\ubc18\uc801\uc778 \uac1c\uc694\ub97c \uc124\uba85\ud558\uae30\ub85c \ud558\uaca0\ub2e4. \uce74\ubcf8\uc744 \uc124\uba85\ud558\ub294 \ubc29\ubc95\uc740 \uc5ec\ub7ec \uac00\uc9c0\uac00 \uc788\uc744 \uc218 \uc788\uc9c0\ub9cc, \uc5ec\uae30\uc11c\ub294 \ub2e4\ub978 \uc7a5(\u7ae0)\ub4e4\uacfc \uac00\ub2a5\ud55c \ud55c \ube44\uc2b7\ud55c \uad00\uc810\uc5d0\uc11c \ube44\uad50\ud560 \ud544\uc694\uac00 \uc788\uc5b4\uc11c \uc774 \ubc29\ubc95\uc744 \ud0dd\ud558\uae30\ub85c \ud55c\ub2e4. \uce74\ubcf8 \uc12c\uc720\uc758 \uc801\uce35 \ubc00\ub3c4\ub294 \ub300\ub7b5 \ud3c9\ubc29 \ud53c\ud2b8 \ub2f9 0.056 \ud30c\uc6b4\ub4dc\uc778\ub370, \uc774 \uc218\uce58\ub294 \uc790\uc804\uac70 \ud504\ub808\uc784\uc6a9 \uae08\uc18d \uc911\uc5d0 \uac00\uc7a5 \uac00\ubcbc\uc6b4 \uc54c\ubbf8\ub284\uc758 60% \uc815\ub3c4\uc774\ub2e4. \ubcf4\uae09\ud615 \uce74\ubcf8\uc758 \uc601\ub960(\uf961)\uc740 30-33msi(\uc5ed\uc8fc: \ub2e8\uc704\ub294 \ubd80\uba85(\u4e0d\u660e))\ub85c, \uc2a4\ud2f8\ubcf4\ub2e4 10% \uc815\ub3c4 \ub192\ub2e4. \uce74\ubcf8\uc774 \uc5bc\ub9c8\ub098 \ub2e8\ub2e8\ud558\uba74\uc11c\ub3c4 \uac00\ubcbc\uc6b4 \uc18c\uc7ac\uc778\uc9c0 \uc774\uc81c \uc544\uc168\uc744 \uac83\uc774\ub2e4. <\/p>\n

\ub2e4\uc74c\uc73c\ub85c, \uce74\ubcf8\uc5d0 \uc5d0\ud3ed\uc2dc\ub97c \ucca8\uac00\ud558\uba74 \uc5b4\ub5bb\uac8c \ub420\uae4c. \uc798 \ub9cc\ub4e4\uc5b4\uc9c4 \uc801\uce35(\u7a4d\u5c64)\uc740 \uc804 \uccb4\uc801 \uc911 62-65%\uc758 \uc12c\uc720\ub97c \ud3ec\ud568\ud55c\ub2e4. \ub9e4\ud2b8\ub9ad\uc2a4\ub294 \ubd80\ud558(\u8ca0\u8377)\ub97c \uc804\ub2ec\ud558\ub294 \uc5ed\ud560\uc744 \ud558\uace0, \uae30\uacc4\uc801 \uc131\uc9c8\uc740 \uac70\uc758 \uc804\ubd80 \uc12c\uc720\uc5d0 \uc758\uc874\ud558\uae30 \ub54c\ubb38\uc5d0, \uac15\uc131(\u525b\u6027)\uc740 \uc12c\uc720\uc758 \ube44\uc728\uc5d0 \ube44\ub840\ud55c\ub2e4. \ub530\ub77c\uc11c, \uc12c\uc720\uc758 \uc601\ub960(\uf961)\uc774 30msi\ub77c\ub3c4 \uc12c\uc720\uc758 \ube44\uc728\uc744 65%\ub85c \uc720\uc9c0\ud558\uba74 \uacb0\uacfc\uc801\uc73c\ub85c \uc601\ub960(\uf961)\uc740 2\/3 \uc815\ub3c4\uc5d0 \ubd88\uacfc\ud558\uac8c \ub41c\ub2e4. \ud558\uc9c0\ub9cc \uadf8\ub798\ub3c4 \ud2f0\ud0c0\ub284\uc758 1\/3\uc758 \ubc00\ub3c4\uc5d0 \uac15\uc131(\u525b\u6027)\uc774 25% \ub192\uae30 \ub54c\ubb38\uc5d0, \uc544\uc9c1 \uac15\uc131(\u525b\u6027)\uc740 \ub6f0\uc5b4\ub098\ub2e4. \uc704\uc758 \uc601\ub960(\uf961)\uc758 \uc218\uce58\ub294, 0\ub3c4 \ubc29\ud5a5, \uc989 \uc12c\uc720\uc640 \ud3c9\ud589\ud55c \ubc29\ud5a5\uc758 \uacbd\uc6b0\ub2e4. \uadf8\ub7ec\ub098, \ub2f9\uc5f0\ud55c \uc77c\uc774\uc9c0\ub9cc, \uc790\uc804\uac70\uc5d0\ub294 \ub2e4\uc591\ud55c \ubc29\ud5a5\uc5d0\uc11c \uc751\ub825(\u61c9\u529b)\uc774 \uac00\ud574\uc9c0\uace0, \ubd80\ud558(\u8ca0\u8377)\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\ub3c4 \uc77c\uc815\ud558\uc9c0 \uc54a\ub2e4. \ub9e4\ud2b8\ub9ad\uc2a4\ub294 \ubd80\ud558\ub97c \ubd84\uc0b0\uc2dc\ud0a4\uae30 \uc704\ud574 \uc12c\uc720\ub97c \uc811\ucc29\uc2dc\ud0a4\ub294 \uc5ed\ud560\uc744 \ud558\ub294\ub370, \uc12c\uc720\uc758 \ubc29\ud5a5\uacfc \uc9c1\uac01 \ubc29\ud5a5\uc758 \uac15\uc131(\u525b\u6027)\uc744 \uce21\uc815\ud558\uba74 \uc601\ub960(\uf961)\uc740 \uaca8\uc6b0 1.51msi\ubc16\uc5d0 \uc548\ub41c\ub2e4. \uac8c\ub2e4\uac00, \uc601\ub960(\uf961)\uc740 \ubc29\ud5a5\uc774 0-30\ub3c4 \uc0ac\uc774\uc5d0\uc11c \uae09\uaca9\ud558\uac8c \ub5a8\uc5b4\uc9c0\uae30 \ub54c\ubb38\uc5d0, \ub300\ubd80\ubd84\uc758 \ubc29\ud5a5\uc73c\ub85c\ubd80\ud130\uc758 \ubd80\ud558(\u8ca0\u8377)\uc5d0 \ub300\ud574\uc11c\ub294 \uac15\uc131(\u525b\u6027)\uc774 \ub0ae\uc544\uc9c0\uac8c \ub41c\ub2e4. \uc790\uc804\uac70\uc5d0\ub294 \uc218\ud3c9\uc751\ub825(\u6c34\u5e73\u61c9\u529b)\ubfd0\ub9cc \uc544\ub2c8\ub77c \ube44\ud2c0\uae30 \uc751\ub825(\u61c9\u529b)\ub3c4 \uc791\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0, \uc774\uac74 \ubb38\uc81c\uac00 \ub41c\ub2e4. <\/p>\n

\uc774 \ubb38\uc81c\ub97c \uc5b4\ub5bb\uac8c \ud574\uacb0\ud560\uae4c. \ub2f5\uc740, \uac01 \uce35\uc744 \uc81c1\uce35\uacfc \ub2e4\ub978 \uac01\ub3c4(\ubcf4\ud1b5 45\ub3c4)\ub85c \uacb9\uce58\ub294 \uac83\uc774\ub2e4. \uacb0\uacfc\uc801\uc73c\ub85c \uac15\uc131(\u525b\u6027)\uc740 \ub300\ub7b5 10-14msi \uc815\ub3c4\uac00 \ub41c\ub2e4. \uc544\uc9c1 \uadf8\ub807\uac8c \ub098\uc05c \uc218\uce58\ub294 \uc544\ub2c8\ub2e4. \uc801\uce35(\u7a4d\u5c64)\uc758 \uc7a5\uc810\uc740, \ud29c\ube0c\uc640 \ud504\ub808\uc784\uc758 \uc131\uc9c8\uc744 \uc5b4\ub5a4 \uc2dd\uc73c\ub85c\ub4e0 \uc870\uc791\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774\ub2e4. \ube44\ud2c0\uc5b4\uc9c0\uc9c0\ub294 \uc54a\uc9c0\ub9cc \uc798 \ud718\ub294 \ud29c\ube0c, \ube44\ud2c0\ub9bc\uacfc \ud728\uc5d0 \uc720\uc5f0\ud55c \ud29c\ube0c, \ub531\ub531\ud55c \ud29c\ube0c,,, \uc5b4\ub5a4 \uc2dd\uc73c\ub85c\ub4e0 \uac00\ub2a5\ud558\ub2e4. \uc774\ub7f0 \uc131\uc9c8\uc744 \ub9ac\ubc29\uc131(\uf962\u65b9\u6027)\uc774\ub77c\uace0 \ud558\ub294\ub370, \uae08\uc18d\uc5d0\uc11c\ub294 \ubcfc \uc218 \uc5c6\ub294 \uc131\uc9c8\uc774\ub2e4. \uc774\ub7f0 \uc131\uc9c8\uc744 \uacb0\uc815\ud558\ub294 \uac83\uc740 \uc18c\uc7ac(\uc758 \ubb3c\uc131(\u7269\u6027))\uac00 \uc544\ub2c8\ub77c \ud504\ub808\uc784 \ub514\uc790\uc774\ub108\ub2e4. <\/p>\n

5.5.3. \uc57d\uc810: \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027) The Weak Link: Elongation <\/p>\n

\uc774\ubc88\uc5d0\ub294 \uce74\ubcf8\uc758 \uc57d\uc810\uc5d0 \ub300\ud574\uc11c\ub2e4. \uce74\ubcf8\uc758 \uc57d\uc810\uc740 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774\ub2e4. \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc740 \uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc548\uc804\ub3c4\uc758 \ucc99\ub3c4\ub77c\uace0 \ud560 \uc218 \uc788\ub294\ub370, \uce74\ubcf8\uc758 \uc2e0\uc7a5\ub960\uc740 \ub180\ub77c\uc6b8 \uc815\ub3c4\ub85c \ub0ae\ub2e4. 45\ub3c4 \uc801\uce35(\u7a4d\u5c64)\uc73c\ub85c \uc5b4\ub290 \uc815\ub3c4\uc758 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc744 \ud655\ubcf4\ud558\ub294 \uac83\uc740 \uac00\ub2a5\ud558\uc9c0\ub9cc, \uce74\ubcf8\uc758 \uc5f0\uc131(\u5ef6\u6027)\uc740 \ubcf8\uc9c8\uc801\uc73c\ub85c \uc801\uae30 \ub54c\ubb38\uc5d0 \ud55c\uacc4\uac00 \uc788\ub2e4. \ubcf5\ud569\uc7ac\ub294 \ud718\uc5b4\uc9c0\ub294 \uc131\uc9c8\uc774 \uc57d\ud558\uace0, \ubd80\uc11c\uc9c8 \ub54c\ub294 \uc870\uae08\uc529\uc774 \uc544\ub2c8\ub77c \ud55c\uaebc\ubc88\uc5d0 \ub69d \ubd80\ub7ec\uc9c4\ub2e4. \ub530\ub77c\uc11c \uc124\uacc4\uc790\ub294 \uc54c\ubbf8\ub284 \ud504\ub808\uc784\uc758 \uacbd\uc6b0\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c, \uc774 \ubb38\uc81c\uc5d0 \ub300\ud55c \ub300\ucc45\uc744 \uc138\uc6b0\uc9c0 \uc54a\uc73c\uba74 \uc548\ub41c\ub2e4. \ub300\ubd80\ubd84\uc758 \uba54\uc774\ucee4\ub294 \uc801\uce35(\u7a4d\u5c64)\ubc29\ubc95\uc744 \uae30\uc5c5\ube44\ubc00\ub85c \uc720\uc9c0\ud558\uae30 \ub54c\ubb38\uc5d0 \uc815\ubcf4\uac00 \ubd80\uc871\ud558\uc9c0\ub9cc, \ud2b8\ub809(Trek)\uc758 \uae30\uc220 \ub9e4\ub274\uc5bc\uc5d0\ub294 \ud0c4\uc131\uacc4\uc218, \uc989 \uc601\ub960(\uf961)\/\ubc00\ub3c4\uc758 \uc218\uce58\uac00 \ub098\uc640 \uc788\ub2e4. \ud2b8\ub809\uc758 OCLV \ubaa8\ub378\uc758 \uc601\ub960(\uf961)\uc740 \uc57d 8msi\ub2e4. <\/p>\n

\ucca8\ub2e8 \uce74\ubcf8\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\ub294 \ub9e4\uc6b0 \ub192\ub2e4. \ud45c\uc900\uc801\uc778 \uce74\ubcf8 \uc720\ub2c8\ud14c\uc774\ud504(carbon unitape, \uc801\uce35(\u7a4d\u5c64)\uc758 \ub2e8\uc704)\uc758 0\ub3c4 \ubc29\ud5a5\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\ub294 300ksi \uc774\uc0c1\uc774\uace0, \uc880 \uc9c8\uc774 \ub0ae\uc740 \uce74\ubcf8\uc744 \ud3ec\ud568\ud574\uc11c \ud3c9\uade0\uc744 \ub0b4\ub354\ub77c\ub3c4, \uac15\ub3c4(\u5f3a\u5ea6)\ub294 100ksi \uc774\uc0c1\uc774\ub2e4. \uac8c\ub2e4\uac00 \ubc00\ub3c4\uac00 \ub9e4\uc6b0 \ub0ae\ub2e4. \ud2b8\ub809\uc758 \uc608\ub97c \ubcf4\uba74, \ud3c9\uade0 115\ub97c \uae30\ub85d\ud55c\ub2e4. \ud2b8\ub809\uc758 \uce74\ubcf8 \ud504\ub808\uc784\uc740, \uc54c\ubbf8\ub284\uacfc \ube44\uad50\ud574\uc11c, \uac15\uc131(\u525b\u6027)\uc774 20 % \uc815\ub3c4 \ub192\uace0, \uac15\ub3c4(\u5f3a\u5ea6)\uac00 2\ubc30 \uc815\ub3c4\uc774\uba70, \uc57d 40%\ub098 \uac00\ubccd\ub2e4. \ub180\ub77c\uc6b4 \uc218\uce58\ub2e4. <\/p>\n

5.6. \ubc1d\uc740 \ubbf8\ub798 A Brilliant Future <\/p>\n

\ucca8\ub2e8 \uce74\ubcf8\uc758 \ubbf8\ub798\ub294 \uc5b4\ub5a4 \ubaa8\uc2b5\uc77c\uae4c? \uce74\ubcf8\uc5d0 \ub300\ud55c \ud3c9\uac00\ub294 \uacc4\uc18d \uc62c\ub77c\uac00\uace0 \uc788\ub2e4. \uc2e4\ud328\ub97c \uac70\ub4ed\ud558\uace0 \uc788\ub358 \uce74\ubcf8 \ud504\ub808\uc784 \uc81c\uc791\uc740 \ucd5c\uadfc \ub4e4\uc5b4 \ub9ce\uc740 \uc131\uacf5\uc744 \uac70\ub450\uace0 \uc788\ub2e4. \ud604\uc2dc\uc810(1994\ub144 \ud604\uc7ac)\uc5d0\uc11c \uac00\uc7a5 \uc720\ub825\ud55c \ubaa8\ub378\uc740 \ud2b8\ub809(Trek)\uc758 OCLV\uc640, \uc790\uc774\uc5b8\ud2b8(Giant)\ub77c\uace0 \ud560 \uc218 \uc788\ub2e4. \uc5c5\uacc4 \uad00\uacc4\uc790 \uba87\uba85\uc5d0\uac8c \ub4e4\uc740 \uc598\uae30\ub97c \ubc14\ud0d5\uc73c\ub85c \ud558\uba74, \uce74\ubcf8 \ud504\ub808\uc784\uc758 \ud310\ub9e4\ub7c9\uc740 \ud2f0\ud0c0\ub284\uc758 2-3\ubc30\uc5d0 \ub2ec\ud55c\ub2e4. \ud2f0\ud0c0\ub284\uc5d0 \ub300\ud55c \ub192\uc740 \ud3c9\uac00\uc5d0 \ube44\ud558\uba74 \uc758\uc678\uc758 \uac10\ub3c4 \uc5c6\uc9c0 \uc54a\uc9c0\ub9cc, \ud2b8\ub809\uacfc \uc790\uc774\uc5b8\ud2b8\uac00 \ub0ae\uc740 \uac00\uaca9\uc73c\ub85c \ud504\ub808\uc784\uc744 \uc81c\uacf5\ud558\uace0 \uc788\ub2e4\ub294 \uc810\uc744 \uace0\ub824\ud558\uba74 \ub2f9\uc5f0\ud55c \uacb0\uacfc\uc778\uc9c0\ub3c4 \ubaa8\ub974\uaca0\ub2e4. <\/p>\n

\uce74\ubcf8 \ud504\ub808\uc784\uc758 \uc7a5\ub798\ub294 \uc54c\ubbf8\ub284\uacfc \ube44\uc2b7\ud560 \uac83\uc774\ub2e4. \uc989, \uc18c\uc7ac \uc790\uccb4\uc758 \uc9c4\ubcf4\ubcf4\ub2e4\ub294, \uadf8\uac83\uc744 \ucd5c\ub300\ud55c \ud65c\uc6a9\ud558\ub294 \ucc98\ub9ac\uc640 \uacf5\ubc95\uc774 \ub354\uc6b1 \uc911\uc694\ud574\uc9c8 \uac83\uc774\ub2e4. <\/p>\n

\uc774 \uc7a5(\u7ae0)\uc758 \uc9d1\ud544\uc5d0 \uc788\uc5b4\uc11c, \uc288\uc708(Schwinn)\uc0ac\uc758 \uae30\uc220 \uba54\ub2c8\uc800\uc778 \uc2a4\ud2f0\ube0c \ub808\ube48(Steve Levin)\uc5d0\uac8c\uc11c \ub9ce\uc740 \ub3c4\uc6c0\uc744 \ubc1b\uc558\ub2e4. \uc774 \uc790\ub9ac\ub97c \ube4c\uc5b4\uc11c \uac10\uc0ac\ub97c \ub300\uc2e0\ud55c\ub2e4. <\/p>\n

\ub2e4\uc74c \uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \ud2b9\uc218\ud55c \uc18c\uc7ac\ub97c \ub2e4\ub8e8\uae30\ub85c \ud558\uaca0\ub2e4. <\/p>\n

6. \ud2b9\uc218\ud55c \uc18c\uc7ac Exotic Materials <\/p>\n

\uc774 \uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uc880 \ud2b9\uc218\ud55c \uc18c\uc7ac\ub97c \uc18c\uac1c\ud558\uaca0\ub2e4. \ub9c8\uc9c0\ub9c9\uc5d0\ub294 \uc804\uccb4\ub97c \uc885\ud569\ud55c \ub2e4\uc74c, \ud55c \uac00\uc9c0 \uc218\uc218\uaed8\ub07c\uc758 \uc18c\uc7ac\ub97c \uc18c\uac1c\ud560 \uac83\uc774\ub2e4. \uc790 \uadf8\ub7fc \uc2dc\uc791\ud569\uc2dc\ub2e4. <\/p>\n

6.1. \uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1 \ubcf5\ud569\uc7ac Thermoplastic Composites <\/p>\n

5\uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uce74\ubcf8\uc5d0 \ub300\ud574\uc11c \uc124\uba85\ud588\ub294\ub370, \uc774 \uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uac19\uc740 \ubcf5\ud569\uc7ac\uc778 \uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\uc5d0 \ub300\ud574\uc11c \uc0b4\ud3b4 \ubcf4\uc790. \ud63c\ub780\uc744 \ud53c\ud558\uae30 \uc704\ud574 5\uc7a5(\u7ae0)\uc5d0\uc11c\ub294 \uc5b8\uae09\uc744 \ud53c\ud588\uc9c0\ub9cc, \uce74\ubcf8\uacfc \uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\uacfc\uc758 \ud070 \ucc28\uc774\ub294, \uc804\uc790\uac00 \uc5f4\uacbd\ud654\uc131(\u71b1\u786c\u5316\u6027)\uc18c\uc7ac, \ud6c4\uc790\uac00 \uc5f4\uac00\uc18c\uc131(\u71b1\u53ef\u5851\u6027)\uc18c\uc7ac\ub77c\ub294 \uc810\uc774\ub2e4. \uc5f4\uac00\uc18c\uc131(\u71b1\u53ef\u5851\u6027)\uc18c\uc7ac\ub294 \uc5f4\uacbd\ud654\uc131(\u71b1\u786c\u5316\u6027)\uc18c\uc7ac\ubcf4\ub2e4 \ub4f1\uc7a5 \uc2dc\uae30\uac00 \ub2a6\ub2e4. \uc591\uc790\uc758 \ucc28\uc774\ub294, \ube75\uacfc \ucd08\ucf54\ub81b\uc758 \ucc28\uc774\uc5d0 \ube44\uad50\ud560 \uc218 \uc788\ub2e4. <\/p>\n

\uc5f4\uacbd\ud654\uc131(\u71b1\u786c\u5316\u6027) \uc18c\uc7ac\ub294 \ube75\uc5d0 \ud574\ub2f9\ud55c\ub2e4. \uc6d0\uc7ac\ub8cc(\ube75\uc740 \ubc00\uac00\ub8e8, \ubb3c, \ud6a8\ubaa8)\ub97c \uc11e\uc5b4\uc11c \ud2c0\uc5d0 \ubd80\uc740 \ub2e4\uc74c \uc5f4\uc744 \uac00\ud574\uc11c \ubc18\uc751\uc744 \uc77c\uc73c\ud0a8\ub2e4. \uc774 \uacfc\uc815\uc740 \uc5ed\ud56d(\u9006\ufa08) \ubd88\uac00\ub2a5\ud558\ub2e4. \uc989, \ube75\uc744 \ub179\uc5ec\uc11c \ub2e4\uc2dc \uc0c8\ub85c\uc6b4 \ube75\uc744 \ub9cc\ub4e4 \uc218\ub294 \uc5c6\ub2e4. <\/p>\n

\uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\ub3c4 \uc6d0\uc7ac\ub8cc\ub97c \uc11e\uc5b4\uc11c \ub9cc\ub4dc\ub294 \uac83\uc5d0\ub294 \ubcc0\ud568 \uc5c6\uc9c0\ub9cc, \uc0c1\ubcc0\ud654(\u76f8\u8b8a\u5316)(\uc6a9\ud574(\u6eb6\u89e3))\ub97c \uc77c\uc73c\ud0ac \ub54c\uae4c\uc9c0 \uc5f4\uc744 \uac00\ud55c\ub2e4\ub294 \ucc28\uc774\uac00 \uc788\ub2e4. \ud504\ub808\uc784\uc744 \ub9cc\ub4e4\ub824\uba74 \uc18c\uc7ac\ub97c \uc2dd\ud600\uc11c \uc6d0\ud558\ub294 \ud615\ud0dc\ub85c \uc131\ud615\ud558\uba74 \ub418\ub294\ub370, \ub9c8\uc74c\uc5d0 \ub4e4\uc9c0 \uc54a\uc744 \uacbd\uc6b0\uc5d0\ub294 \ub2e4\uc2dc \ub179\uc5ec\uc11c \uc131\ud615\ud560 \uc218\uac00 \uc788\ub2e4(\ub82c\ud654(\u52a3\u5316)\ub97c \uc77c\uc73c\ud0a4\uc9c0 \uc54a\uace0 \uba87\ubc88 \ubc18\ubcf5\ud560 \uc218 \uc788\ub294\uac00\ub294 \uc18c\uc7ac\uc5d0 \ub530\ub77c \ub2e4\ub974\ub2e4). \ub610 \ud55c \uac00\uc9c0, \uc5f4\uacbd\ud654\uc131(\u71b1\u786c\u5316\u6027)\uc18c\uc7ac\ub97c \uc131\ud615\ud558\ub294 \uacf5\uc815\uc5d0\uc11c\ub294 \uac00\uc2a4\uac00 \ubc1c\uc0dd\ud558\uc9c0\ub9cc, \uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\uc740 \uc6a9\ud574\ud560 \ub54c\ub3c4 \uac70\uc758 \ub0c4\uc0c8\uac00 \ub098\uc9c0 \uc54a\ub294\ub2e4. \uc774\uc0c1\uacfc \uac19\uc774, \ub9ac\uc0ac\uc774\ud074\ud574\uc11c \uc7ac\uc131\ud615\ud560 \uc218 \uc788\ub2e4\ub294 \uc810, \ubd80\uc234\uc11c \ub2e4\uc2dc \ud63c\ud569\ud560 \uc218 \uc788\ub2e4\ub294 \uc810, \ub610\ud55c \uc545\ucde8\uac00 \ubc1c\uc0dd\ud558\uc9c0 \uc54a\ub294\ub2e4\ub294 \uc810 \ub4f1\uc5d0\uc11c, \uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\uc740 \uacf5\ud574\uac00 \uc801\uc740 \uc18c\uc7ac\ub77c\uace0 \ud558\ub294 \uc0ac\ub78c\ub3c4 \uc788\ub2e4. <\/p>\n

\uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\uc744 \uc774\uc6a9\ud55c \uc790\uc804\uac70\ub294, \ud604\uc7ac\uae4c\uc9c0\ub294 \uce74\uc774\uc800 \uc5d0\uc5b4\ub85c\uc2a4\ud398\uc774\uc2a4(Kaiser Aerospace)\uc640 \ud39c\uc2a4\ud0a4(Penske)\uc0ac\uac00 \uacf5\ub3d9\uc73c\ub85c \uac1c\ubc1c\ud55c \uc608\ud2f0(Yeti)\ubc16\uc5d0 \uc5c6\ub2e4. \uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\uc758 \uc911\uc694\ud55c \ud3ec\uc778\ud2b8\uc758 \ud558\ub098\ub294, \uc5f4\uacbd\ud654\uc131(\u71b1\u786c\u5316\u6027) \uc18c\uc7ac\uc640 \ube44\uad50\ud574\uc11c \ub0b4(\u8010)\ucda9\uaca9\uc131\uc774 \uac15\ud558\ub2e4\ub294 \uc810\uc774\ub2e4. \uc774\uc640 \ube44\uad50\ud574, \uc5f4\uacbd\ud654\uc218\uc9c0(\u71b1\u786c\u5316\u6a39\u8102) \uc5d0\ud3ed\uc2dc\ub294 \ube44\uad50\uc801 \ubb34\ub978\ub370, \ubb34\ub974\ub2e4\ub294 \uac83\uc740 \uc790\uc804\uac70\uc758 \uc18c\uc7ac\ub85c\uc11c \ubc14\ub78c\uc9c1\ud55c \ubb3c\uc131(\u7269\u6027)\uc774\ub77c\uace0\ub294 \ud560 \uc218 \uc5c6\ub2e4. \ubc18\uba74, \uc11c\ubaa8 \ud50c\ub77c\uc2a4\ud2f1\uc640 \ub2e8\uc810\uc740, \uc811\ucc29\uc774 \ub9e4\uc6b0 \uc5b4\ub835\ub2e4\ub294 \uc810\uc774\ub2e4. \uc811\ucc29\ud574\uc57c \ud560 \ubd80\ud488\uc774 \ub9ce\uc740 \uc790\uc804\uac70\uc758 \ud2b9\uc131\uc744 \uace0\ub824\ud558\uba74 \uc774\uac83\uc740 \ud070 \ubb38\uc81c\uac00 \uc544\ub2d0 \uc218 \uc5c6\ub2e4. <\/p>\n

6.2. \ub9c8\uadf8\ub124\uc298 Magnesium <\/p>\n

\uc54c\ubbf8\ub284\uc758 \ubc18\uc758 \ubc00\ub3c4(1.54), 6061 \uc54c\ubbf8\ub284\ubcf4\ub2e4 \ub6f0\uc5b4\ub09c \uac15\ub3c4(\u5f3a\u5ea6), \uc54c\ubbf8\ub284\uacfc \ub3d9\ub4f1 \ub0b4\uc9c0 \ub6f0\uc5b4\ub09c 10-11%\uc758 \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc744 \uacb8\ube44\ud55c \uae08\uc18d\uc774 \ub9c8\uadf8\ub124\uc298\uc778\ub370, \ud604\uc7ac \uc774\uc2a4\ud2bc(Easton)\uc0ac(\u793e)\uac00 \ud14c\uc2a4\ud2b8 \uc911\uc774\ub2e4. \ub9c8\uadf8\ub124\uc298\uc758 \uc5f0\uc131(\u5ef6\u6027)\uc740 \uadf8\ub807\uac8c \ub6f0\uc5b4\ub098\uc9c0 \uc54a\uc9c0\ub9cc, \uc774\uc2a4\ud2bc\uc0ac\ub294 10-11%\ub77c\ub294 \uc218\uce58\ub294 \uc720\ub9dd\ud558\ub2e4\uace0 \uc8fc\uc7a5\ud55c\ub2e4. \ub9c8\uadf8\ub124\uc298\uc758 \uac15\uc131(\u525b\u6027) \uc5ed\uc2dc, 6msi \uc815\ub3c4\ub85c \ub192\uc9c0\ub294 \uc54a\uc740 \ud3b8\uc774\uc9c0\ub9cc, \uc774\uac74 \ud070 \ubb38\uc81c\ub294 \uc544\ub2c8\ub2e4. \uc54c\ubbf8\ub284\ub3c4 \uac15\uc131(\u525b\u6027)\uc740 \ube44\uad50\uc801 \ub0ae\uc9c0\ub9cc \uadf8\ub807\ub2e4\uace0 \ud574\uc11c \uac15\uc131(\u525b\u6027)\uc774 \ub6f0\uc5b4\ub09c \uc54c\ubbf8\ub284 \ud504\ub808\uc784\uc744 \ub9cc\ub4e4 \uc218 \uc5c6\ub294 \uac83\uc740 \uc544\ub2c8\uae30 \ub54c\ubb38\uc774\ub2e4. \ub9c8\uadf8\ub124\uc298\ub3c4 \uc774\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c, \uc624\ud788\ub824 \uac15\uc131(\u525b\u6027)\uc774 \ub0ae\uc740 \uac83\uc740 \ud658\uc601\ud560 \ub9cc\ud55c \uc131\uc9c8\uc774\uae30\ub3c4 \ud558\ub2e4. <\/p>\n

\ub9c8\uadf8\ub124\uc298\uc758 \uacbd\uc6b0 \ud574\uacb0\ud574\uc57c \ud560 \uacfc\uc81c\ub294, \uadf9\ub3c4\ub85c \ubd80\uc2dd(\u8150\u8755)\uc5d0 \uc57d\ud558\ub2e4\ub294 \uc810\uc774\ub2e4. \ub9c8\uadf8\ub124\uc298 \ud30c\ud3b8\uc744 \ube57\uc18d\uc5d0 \ubc29\uce58\ud574 \ub450\uba74, \ub3c4\uc7a5(\u5857\u88dd)\ud558\uc9c0 \uc54a\uc740 \uc2a4\ud2f8 \ub2e4\uc74c\uc73c\ub85c \ube68\ub9ac \ub179\uc2ac\uc5b4 \ubc84\ub9b0\ub2e4. \uc774 \ubb38\uc81c\ub294 \ub3c4\uc7a5(\u5857\u88dd)\uc774\ub098 \uc804\ud574(\u96fb\u89e3)\ub85c \ud53c\ub9c9\uc744 \ud615\uc131\ud568\uc73c\ub85c\uc368 \ud574\uacb0\ud560 \uc218 \uc788\ub2e4. <\/p>\n

\ub9c8\uadf8\ub124\uc298\uc758 \ub610 \ud558\ub098\uc758 \ub2e8\uc810(\uc7a5\uc810\uc774\ub77c\uace0 \ud560 \uc218 \uc788\uc744 \uc9c0 \ubaa8\ub974\uaca0\uc9c0\ub9cc?)\uc73c\ub85c,\ud504\ub808\uc784\uc744 \uae01\uc5b4\uc11c \ubd88\uc744 \ubd99\uc774\uae30\ub9cc \ud558\uba74 \uc27d\uac8c \uc5f0\uc18c\ud55c\ub2e4\ub294 \uc810\uc744 \ub4e4 \uc218 \uc788\ub2e4! \ub9c8\uadf8\ub124\uc298 \ubd84\ub9d0\uc5d0 \ubb3c\uc744 \ubd80\uc5b4\ubcf4\uc790. \ubb3c\uc758 \uc218\uc18c\uc640 \ud0c4\uc18c\uac00 \ubd84\ub9ac\ud574\uc11c \ub9c8\uadf8\ub124\uc298\uacfc \ubc18\uc751\uc744 \uc77c\uc73c\ucf1c, \uc21c\uc2dd\uac04\uc5d0 \ud78c\ub374\ubd80\ub974\uadf8\ud638\uc758 \ud654\uc7ac\ub97c \uc7ac\uc5f0\ud560 \uc218 \uc788\ub2e4. \ud2f0\ud0c0\ub284\ub3c4 \ube44\uc2b7\ud55c \uc131\uc9c8\uc774 \uc788\uc9c0\ub9cc \ud2f0\ud0c0\ub284\uc758 \uacbd\uc6b0\uc5d0\ub294 \ubc18\uc751\uc744 \uc77c\uc73c\ud0a4\uae30 \uc704\ud574\uc11c\ub294 \uc57d\uac04\uc758 \uc870\uc791\uc774 \ud544\uc694\ud558\ub2e4. <\/p>\n

6.3. \uc54c\ubbf8\ub284 \uba54\ud0c8 \ub9e4\ud2b8\ub9ad\uc2a4 \ubcf5\ud569\uc7ac Aluminum Metal-Matrix Composites <\/p>\n

\uc54c\ubbf8\ub284 \uba54\ud0c8 \ub9e4\ud2b8\ub9ad\uc2a4 \ubcf5\ud569\uc7ac(MMC)\uc5d0 \uad00\ud574\uc11c\ub294 \uc5ec\ub7ec\ubd84\ub3c4 \uc798 \uc54c\uace0 \uc788\uc744 \uac83\uc774\ub2e4. \uc2a4\ud398\uc15c\ub77c\uc774\uc988\ub4dc\uc0ac(\u793e)\ub294, \ub4c0\ub784\uce94(Duralcan)\uc758 MMC\ub97c \uc774\uc6a9\ud55c M2 \uc2dc\ub9ac\uc988\ub97c \uba87\ub144 \uc804\ubd80\ud130 \ud310\ub9e4\ud558\uace0 \uc788\ub2e4. MMC\ub294 \uc54c\ubbf8\ub284\uacfc \uc138\ub77c\ubbf9\uc774 \uc8fc\uc131\ubd84\uc774\ub2e4(\uc790\uc804\uac70\uc6a9 MMC\uc5d0\ub294 6061\uc774\ub098 7005 \uc54c\ubbf8\ub284\uc744 \uc0ac\uc6a9\ud55c\ub2e4). \uc2a4\ud398\uc15c\ub77c\uc774\uc988\ub4dc\uc758 M2\uc5d0 \uc0ac\uc6a9\ub418\ub294 MMC\uc758 \uacbd\uc6b0\uc5d0\ub294, \uc54c\ubbf8\ub284\uc5d0 \uc0b0\ud654\uc54c\ubbf8\ub284(Al2O3)\uc744 \ucca8\uac00\ud55c\ub2e4. \ub4c0\ub784\uce94\uc0ac(\u793e)\ub294, \uc6a9\uc735\uc0c1\ud0dc\uc758 \uc54c\ubbf8\ub284\uc5d0 \uc9c4\uacf5 \uc18d\uc5d0\uc11c \uc0b0\ud654\uc54c\ubbf8\ub284\uc744 \ubc30\ud569\ud558\ub294 \uacf5\uc815\uc5d0 \uad00\ud55c \ud2b9\ud5c8\ub97c \uac00\uc9c0\uace0 \uc788\ub2e4. \uc774 \uacf5\uc815\uc5d0\ub294 \ub9ce\uc740 \uc7a5\uc810\uc774 \uc788\ub294\ub370, \uc8fc\uba38\ub2c8 \uac71\uc815\uc744 \ud558\uc9c0 \uc54a\uc744 \uc218 \uc5c6\ub294 \uc790\uc804\uac70 \uc911\ub3c5\uc790\uc5d0\uac8c \ubb34\uc5c7\ubcf4\ub2e4\ub3c4 \ubc18\uac00\uc6b4 \uac83\uc740, \uc2f8\uac8c \uc81c\uc870\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774\ub2e4. \uc0b0\ud654\uc54c\ubbf8\ub284\uc774\ub77c\ub294 \ub9d0\uc744 \ub4e4\uc740 \uc801\uc774 \uc788\uc744 \uc9c0 \ubaa8\ub974\uaca0\uc9c0\ub9cc, \uc774\uac83\uc740 \uc0cc\ub4dc \ud398\uc774\ud37c\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ubd84\ub9d0\uacfc \uac19\uc740 \ubb3c\uac74\uc774\ub2e4. #600\uc758 \uac00\ub294 \uc0cc\ub4dc \ud398\uc774\ud37c\uc758 \uc5f0\ub9c8\uc81c\uc640 \ub611\uac19\uc740 \ub188\uc778 \uac83\uc774\ub2e4! <\/p>\n

MMC\uc758 \uc131\uc9c8\uc740 \uc0b0\ud654\uc54c\ubbf8\ub284\uc758 \ube44\uc728\uc5d0 \ub530\ub77c\uc11c \ubcc0\ud55c\ub2e4. \uc0b0\ud654\uc54c\ubbf8\ub284\uc758 \ube44\uc728\uc744 \ub192\uc774\uba74 \uac15\uc131(\u525b\u6027)\uc740 \ub192\uc544\uc9c0\uc9c0\ub9cc \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uacfc \uc778\uc131(\u976d\u6027)\uc740 \ub0ae\uc544\uc9c4\ub2e4. M2\uc758 \ud504\ub808\uc784\uc740 \uc804 \uc911\ub7c9\uc758 10%\uc758 \uc0b0\ud654\uc54c\ubbf8\ub284\uc744 \ud3ec\ud568\ud558\uace0 \uc788\ub294\ub370, \uc774 \uacbd\uc6b0, \uc54c\ubbf8\ub284\uacfc \ube44\uad50\ud574\uc11c \ud56d\ubcf5\uc810 \uac15\ub3c4(\u5f3a\u5ea6)\ub294 8%, \uac15\uc131(\u525b\u6027)\uc740 20% \ub192\ub2e4. \uc5ed\uc73c\ub85c \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc740 \uc54c\ubbf8\ub284\ubcf4\ub2e4 \ub0ae\uc544\uc9c0\uc9c0\ub9cc \uba54\uc774\ucee4 \ubc1c\ud45c\uc758 \uc218\uce58\ub294 10%\ub85c, \ud5c8\uc6a9\ubc94\uc704 \uc774\ub0b4\ub2e4. <\/p>\n

\uc774\ub807\uac8c\uae4c\uc9c0 \ud558\uc9c0 \uc54a\uc544\ub3c4 \uc54c\ubbf8\ub284 \ud504\ub808\uc784\uc740 \ucda9\ubd84\ud55c \uac15\uc131(\u525b\u6027)\uc774 \uc788\uc9c0 \uc54a\ub290\ub0d0\uace0 \ud560 \uc9c0\ub3c4 \ubaa8\ub974\uaca0\ub2e4. \ubb3c\ub860 \uc633\uc740 \ub9d0\uc500\uc774\ub2e4. \ud558\uc9c0\ub9cc, \uc774\ubbf8 \uc704\uc5d0\uc11c \uc124\uba85\ud55c \ub300\ub85c, \uac15\uc131(\u525b\u6027)\uc740 \uc124\uacc4\uc5d0 \ub530\ub77c\uc11c \ub2ec\ub77c\uc9c4\ub2e4. \uc608\ub97c \ub4e4\uc5b4\uc11c \ub2f9\uc2e0\uc774 \ub9ac\uc5b4 \uc5d4\ub4dc\ub97c \uc124\uacc4\ud55c\ub2e4\uace0 \ud574\ubcf4\uc790. \uc77c\uc815 \uc218\uc900\uc758 \uac15\uc131(\u525b\u6027)\uacfc \ud568\uaed8, \uc9c4\ud759, \ubc1c\ub4a4\uafc8\uce58, \ud0c0\uc774\uc5b4, \uccb4\uc778 \ub9c1\uc5d0 \ub300\ud574 \ucda9\ubd84\ud55c \uac04\uaca9\uc744 \ud655\ubcf4\ud558\ub824\uba74 \uc9c1\uacbd\uc774 \uc791\uc740 \ud29c\ube0c\uac00 \uc88b\uc9c0\ub9cc, \ud29c\ube0c\uc758 \uc9c1\uacbd\uc744 \uc791\uac8c \ud558\uba74\uc11c\ub3c4 \uac15\uc131(\u525b\u6027)\uc774 \ucda9\ubd84\ud55c \ud29c\ube0c\ub97c \ub9cc\ub4e4\uae30 \uc704\ud574\uc11c\ub294 \uac15\uc131(\u525b\u6027)\uc774 \ub192\uc740 \uc18c\uc7ac\uac00 \ubc14\ub78c\uc9c1\ud558\ub2e4. \uac15\uc131(\u525b\u6027)\uc774 \ub192\uc740 \uc18c\uc7ac\ub97c \uc0ac\uc6a9\ud558\uba74, \uba54\uc778 \ud504\ub808\uc784\uc758 \uc9c1\uacbd\uc744 \uc904\uc77c \uc218 \uc788\ub2e4. <\/p>\n

\ubd80\uc704\uc5d0 \ub530\ub77c \uac15\uc131(\u525b\u6027)\uc744 \ub2e4\ub974\uac8c \ud558\ub294 \uac83\uc758 \uc774\uc810\uc73c\ub85c\uc11c\ub294, \ubb34\uc5c7\ubcf4\ub2e4\ub3c4, \ub192\uc740 \uac15\uc131(\u525b\u6027)\uc774 \uc694\uad6c\ub418\ub294 \ubd80\ubd84\uc5d0\ub294 \ub192\uc740 \uac15\uc131(\u525b\u6027)\uc758 \uc18c\uc7ac\ub97c \uc0ac\uc6a9\ud558\uace0, \uc5ed\uc73c\ub85c \ud5e4\ub4dc \ud29c\ube0c\uc758 \uc811\ud569\ubd80\uc640 \uac19\uc774 \ub192\uc740 \uc5f0\uc131(\u5ef6\u6027)\uc774 \uc694\uad6c\ub418\ub294 \ubd80\ubd84\uc5d0\ub294 \uc5f0\uc131(\u5ef6\u6027)\uc774 \ub6f0\uc5b4\ub09c \uc18c\uc7ac\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774\ub2e4. \uc774\ucc98\ub7fc, \uc0ac\uc18c\ud55c \ubd80\ubd84\uc5d0 \uc788\uc5b4\uc11c\uc758 \uc791\uc740 \uc9c4\ubcf4\uac00, \uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc9c4\ud654\uc758 \uc6d0\ub3d9\ub825\uc774\ub780 \uc5b4\ub5a4 \uac83\uc778\uac00\ub97c \ubcf4\uc5ec\uc8fc\ub294 \uc88b\uc740 \uc608\uac00 \uc544\ub2d0\uae4c. <\/p>\n

MMC\uc758 \uc5f4\ucc98\ub9ac\ub294 6061 \uc54c\ubbf8\ub284\uacfc \ub9c8\ucc2c\uac00\uc9c0\ub2e4. \uc5f4\ucc98\ub9ac\ub97c \ud558\uace0 \uc2f6\uc9c0 \uc54a\uac70\ub098 \ud639\uc740 \ud560 \uc218 \uc5c6\ub294 \uacbd\uc6b0\uc5d0\ub294 7005\ub97c \ubca0\uc774\uc2a4\ub85c \ud55c MMC\uac00 \uc788\ub2e4. \uc774\uac83\uc740 \ud45c\uc900\uc801\uc778 7005\uc640 \ube44\uad50\ud574\uc11c \uac15\ub3c4(\u5f3a\u5ea6)\ub294 \ubcc4 \ucc28\uc774 \uc5c6\uc9c0\ub9cc \uac15\uc131(\u525b\u6027)\uc740 \ub192\ub2e4. \ub6f0\uc5b4\ub09c \uae30\uacc4\uc801 \uc131\uc9c8\uc744 \uac00\uc9c0\uace0 \uc788\uc9c0\ub9cc \uc6a9\uc811\uc774 \ubd88\uac00\ub2a5\ud55c MMC\uac00 \uc788\ub2e4\ub294 \ud070 \ubb38\uc81c\uc5d0 \ub300\ud574\uc11c\ub294 \uc544\uc9c1 \ub17c\ud558\uc9c0 \uc54a\uc558\ub2e4. \uc774\uac83\ub3c4 \uc790\uc804\uac70 \ud504\ub808\uc784\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218\ub294 \uc788\uc9c0\ub9cc, \uc6a9\uc811\uc774 \ubd88\uac00\ub2a5\ud55c \ub9cc\ud07c, \uc811\ucc29\uc744 \uc774\uc6a9\ud560 \ud544\uc694\uac00 \uc788\ub2e4. <\/p>\n

\uc804\uccb4\uc801\uc73c\ub85c \ubd10\uc11c, \uc0b0\ud654\uc54c\ubbf8\ub284\uc744 \uc774\uc6a9\ud55c MMC\ub294 \ud601\uba85\uc801\uc778 \uc18c\uc7ac\ub77c\uace0\uae4c\uc9c0\ub294 \ud560 \uc218 \uc5c6\ub2e4. \uae30\uacc4\uc801 \uc131\uc9c8\uc5d0 \uc788\uc5b4\uc11c \uc57d\uac04\uc758 \uc9c4\ubcf4\uac00 \uc788\uc9c0\ub9cc, \uadf8 \ubc18\uba74 \uc57d\ud654\ub41c \uc810\ub3c4 \uc788\uae30 \ub54c\ubb38\uc774\ub2e4. \uc774 \uc2dc\ub9ac\uc988\ub97c \ud1b5\ud574 \uc5ec\ub7ec\ubc88 \uc9c0\uc801\ud574 \uc628 \uc810\uc774\uc9c0\ub9cc, \uc911\uc694\ud55c \uac83\uc740 \uc790\uc804\uac70\uc758 \uc804\uccb4\uc801 \uad6c\uc870\ub97c \uace0\ub824\ud55c \uc124\uacc4\uc778 \uac83\uc774\ub2e4. <\/p>\n

\ub2e4\uc74c \ubd80\ubd84\uc5d0\uc11c\ub294, \uc0b0\ud654\uc54c\ubbf8\ub284 \uc774\uc678\uc758 \uc18c\uc7ac\ub97c \uc774\uc6a9\ud55c \uc138 \uc885\ub958\uc758 MMC \ubc0f \ubca0\ub9b4\ub968\uacfc \uc2e0\uc18c\uc7ac\uc778 \uc5d0\uc5b4\ub9f7 100\uc5d0 \ub300\ud574\uc11c \uac1c\ub7b5\uc801\uc73c\ub85c \ub17c\ud558\uace0, \uc218\uc218\uaed8\ub07c\uc758 \uc18c\uc7ac\uc5d0 \ub300\ud55c \uc598\uae30\uc5d0 \ub4e4\uc5b4\uac00\uaca0\ub2e4. <\/p>\n

6.4. \uc54c\ubbf8\ub284 \ub9ac\ud2ac Aluminum Lithium <\/p>\n

\uba54\uc774\ucee4\uc758 \ud64d\ubcf4 \ub2f4\ub2f9\uc790\uac00 \uacbd\ud0c4\ud558\ub294 \ubaa8\uc2b5\uc774 \ub208\uc5d0 \ubcf4\uc778\ub2e4. “\uc870\uc6b8\ubcd1\uc744 \uce58\ub8cc\ud558\ub294 \uae30\uc801\uc758 \uc57d \ub9ac\ud2ac\uc774 \ud3ec\ud568\ub41c \uc790\uc804\uac70! \uae30\ubd84\uc774 \uc6b8\uc801\ud560 \ub54c\ub294 \ud1b1 \ud29c\ube0c\ub97c \ud55c \ubc88\ub9cc \ud565\uc544 \uc8fc\ub294 \uac83\uc73c\ub85c \ub9cc\uc0ac OK!” \ub9ac\ud2ac\uc740 \uc870\uc6b8\ubcd1\uc758 \uce58\ub8cc\uc57d\uc73c\ub85c \uc0ac\uc6a9\ub418\uace0 \uc788\ub294\ub370, \uae30\uacc4\uc801\uc778 \uc131\uc9c8\uc744 \ub192\uc774\uae30 \uc704\ud574\uc11c \uc774\uac83\uc744 \uc54c\ubbf8\ub284 \ud569\uae08\uc5d0 \ubc30\ud569\ud55c \uc18c\uc7ac\uac00 \uc788\ub2e4. \uc2e4\uc81c\ub294, \uc57d\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub9ac\ud2ac\uc740 \ud0c4\uc0b0\uc5fc\uc774\ub77c\uc11c \ud569\uae08\uc758 \uc7ac\ub8cc\uc640\ub294 \uc57d\uac04 \ub0b4\uc6a9\uc774 \ub2e4\ub974\uae30\ub294 \ud558\uc9c0\ub9cc. <\/p>\n

\uc54c\ubbf8\ub284 \ub9ac\ud2ac \ud569\uae08\uc758 \uc0ac\uc591\ud45c\ub294, \uac15\ub3c4(\u5f3a\u5ea6), \uac15\uc131(\u525b\u6027)\uc758 \uba74\uc5d0\uc11c \ub9e4\uc6b0 \ub6f0\uc5b4\ub09c \uc218\uce58\ub97c \ubcf4\uc5ec\uc900\ub2e4. \uadf8\ub7f0\ub370 \uc65c \uc790\uc804\uac70\ub97c \ub9cc\ub4e4\uc9c0 \uc54a\ub294 \uac78\uae4c? \ub9ac\ud2ac \ud569\uae08\uc5d0 \ub300\ud574\uc11c \uc5ec\ub7ec\uac00\uc9c0\ub85c \uc870\uc0ac\ud574 \ubcf4\ub824\uace0 \ud588\uc9c0\ub9cc, \uc5bb\uc744 \uc218 \uc788\ub294 \uc815\ubcf4\ub294 \uc804\ubd80 \uae30\ubc00\uc0ac\ud56d, \uc624\ubcf4(\u8aa4\u5831), \ubaa8\uc21c \ub369\uc5b4\ub9ac\ubfd0\uc774\uc5c8\ub2e4. \uacb0\uad6d \ud655\uc778\ud55c \uac83\uc740, \uc54c\ubbf8\ub284 \ub9ac\ud2ac \ud569\uae08\uc740 \uc624\ub798\uc804\ubd80\ud130 \uc874\uc7ac\ud574 \uc654\uc9c0\ub9cc, \uc790\uc804\uac70\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uacbd\uc6b0\ub294 \uac70\uc758 \uc5c6\uace0, \ub2e4\ub978 \uc6a9\ub3c4\ub85c\ub3c4 \uac70\uc758 \uc0ac\uc6a9\ub418\uc9c0 \uc54a\ub294\ub2e4\ub294 \uc0ac\uc2e4\uc774\uc5c8\ub2e4. <\/p>\n

\ub9ac\ud2ac\uc744 \uac00\uacf5\ud558\ub294 \uc791\uc5c5\uc740 \uc870\uc6b8\ubcd1\uc744 \uce58\ub8cc\ud558\uae30\ub294 \ucee4\ub155, \uc624\ud788\ub824 \uc870\uc6b8\uc99d\uc744 \uc77c\uc73c\ud0ac \uac00\ub2a5\uc131\uc774 \uc788\ub2e4. \uac70\uae30\uc5d0\ub2e4, \ub9ac\ud2ac\uacfc \uc54c\ubbf8\ub284\uc744 \ubcd1\uc6a9\ud560 \uacbd\uc6b0\uc5d0\ub294 \uba87\uac00\uc9c0 \ubb38\uc81c\uac00 \ub354 \uc0dd\uae34\ub2e4. \uc544\uc8fc \uc18c\ub7c9\uc758 \ub9ac\ud2ac\ub3c4 \uac00\uacf5 \uae30\uacc4\ub97c \uc624\uc5fc\uc2dc\ud0ac \uc218\uac00 \uc788\ub2e4. \ub9ac\ud2ac\uc740 \ubd88\uc548\uc815\ud55c \uae08\uc18d\uc73c\ub85c, \uc0b0\uc18c\uc640 \uc27d\uac8c \uacb0\ud569\ud55c\ub2e4. \ub54c\ubb38\uc5d0, \ub9ac\ud2ac\uc758 \uc131\ud615\uc740 \ub9e4\uc6b0 \ucc9c\ucc9c\ud788 \uc9c4\ud589\ud558\uc9c0 \uc54a\uc73c\uba74 \uc548\ub418\uace0, \uc5f4\ucc98\ub9ac\ub3c4 \uc624\ub79c \uc2dc\uac04 \uac00\ud574\uc904 \ud544\uc694\uac00 \uc788\ub2e4. \uc5f4\ucc98\ub9ac\ub294 \ub9e4\uc6b0 \uc911\uc694\ud55c \uacf5\uc815\uc774\uace0 \uc791\uc740 \ubd80\uc8fc\uc758\ub9cc\uc73c\ub85c\ub3c4 \uc2e4\ud328\ub97c \ucd08\ub798\ud560 \uc218 \uc788\ub2e4. \uc5f4\ucc98\ub9ac\ub97c \ub108\ubb34 \uc624\ub798 \ud55c\ub2e4\ub4e0\uc9c0 \uc628\ub3c4\ub97c \ub192\uac8c \uc124\uc815\ud55c\ub2e4\ub4e0\uc9c0 \ud558\uba74 \uc870\uae08\uc758 \uc624\ucc28\ub9cc \uc788\uc5b4\ub3c4 \ub9ac\ud2ac\uc740 \uc27d\uac8c \uc0b0\ud654\ud574 \ubc84\ub9ac\uace0 \ub9cc\ub2e4. \ub9ac\ud2ac\uc774 \uc0b0\ud654\ud574 \ubc84\ub9ac\uace0 \ub098\uba74 \ub0a8\ub294 \uac83\uc740, \uac70\uc758 \uc21c\uc218\ud55c \uc54c\ubbf8\ub284\uc774\ub2e4. \ud569\uae08\uc5d0 \ud544\uc694\ud55c \ub9ac\ud2ac\uc740 1-2% \uc815\ub3c4\ubc16\uc5d0 \uc548\ub418\ub294 \uc18c\ub7c9\uc774\uae30 \ub54c\ubb38\uc5d0 \uc870\uae08\ub9cc \uc2e4\uc218\ub97c \ud558\uba74 \uc27d\uac8c \uc5c6\uc5b4\uc838 \ubc84\ub9b0\ub2e4. \uc774\ub807\uac8c \uae4c\ub2e4\ub85c\uc6b4 \uc131\uc9c8\uc744 \uac00\uc9c0\uace0 \uc788\uae30 \ub54c\ubb38\uc5d0 \ub9ac\ud2ac\uc744 \ud569\uae08\uc5d0 \uc0ac\uc6a9\ud558\ub294 \ub370\ub294 \ud55c \uac00\uc9c0 \ud070 \ubb38\uc81c, \uc989 \ube44\uc6a9\uc758 \ubb38\uc81c\uac00 \uac78\ub9b0\ub2e4. <\/p>\n

\ub9ac\ud2ac\ub9cc\uc73c\ub85c\ub294 \uc790\uc804\uac70 \ud504\ub808\uc784\uc744 \ub9cc\ub4e4 \uc218 \uc5c6\uc9c0\ub9cc, \ucc38\uace0\ub85c \ub2e4\ub978 \uae08\uc18d\uacfc \ube44\uad50\ud574 \ubcf4\uc790. \ub9ac\ud2ac\uc740 \uc8fc\uae30\uc728\ud45c\uc5d0\uc11c 3\ubc88\uc5d0 \ud574\ub2f9\ud55c\ub2e4. \ubc00\ub3c4\ub294 \uc57d 0.5\ub85c, \uae08\uc18d \uc911\uc5d0\uc11c \uac00\uc7a5 \uac00\ubccd\ub2e4. \ubca0\ub9b4\ub968\uacfc \ub9c8\uadf8\ub124\uc298\uc758 \ubc00\ub3c4\ub294 \uc54c\ubbf8\ub284\uc758 2\/3\uc778\ub370, \uc54c\ubbf8\ub284\uc740 \ud2f0\ud0c0\ub284\uc758 \ubc00\ub3c4\uc758 2\/3, \uc2a4\ud2f8\uc758 \ubc18\ubc16\uc5d0 \uc548\ub41c\ub2e4. \ub9ac\ud2ac\uc774 \ub9e4\ub825\uc801\uc778 \uc774\uc720\ub97c \uc544\uc2dc\uaca0\ub294\uac00. <\/p>\n

\ub9ac\ud2ac\uc758 \uac15\ub3c4(\u5f3a\u5ea6)\uc640 \uac15\uc131(\u525b\u6027)\uc744 \ubcfc \ub54c \uc8fc\uc758\ud574\uc57c \ud560 \uac83\uc740 T-8(\uc5f4\ucc98\ub9ac, \uc5d0\uc774\uc9d5, \ub0c9\uac04\ub2e8\uc870(\uf92e\u9593\u935b\u9020)) \ucc98\ub9ac\ub41c \ud6c4\uc758 \uc218\uce58\ub77c\ub294 \uc810\uc774\ub2e4. \ub2e4\ub978 \uc6a9\ub3c4\uc5d0\ub294 \ub6f0\uc5b4\ub09c \uc218\uce58\ub97c \ubcf4\uc77c \uc9c0 \ubaa8\ub974\uc9c0\ub9cc, \uc790\uc804\uac70 \ud504\ub808\uc784\uc744 \ub9cc\ub4e4 \uacbd\uc6b0\uc5d0\ub294 \uc774 \uc131\uc9c8\uc740 \ubb34\uc2dc\ud574\uc57c \ud55c\ub2e4. \ubcf4\ub2e4 \ud604\uc2e4\uc801\uc778 \uc218\uce58(T-6)\ub97c \ubcf4\uba74, \ub3c4\uc800\ud788 \uc790\uc804\uac70 \ud504\ub808\uc784\uc744 \ub9cc\ub4e4 \uc218 \uc5c6\ub294 \ubb3c\uac74\uc774\ub77c\ub294 \uac83\uc744 \uc54c \uc218 \uc788\ub2e4. <\/p>\n

\ub9ac\ud2ac\uc740 \ub6f0\uc5b4\ub09c \uac00\ub2a5\uc131\uc744 \uac00\uc9c0\uace0 \uc788\ub294 \uae08\uc18d\uc774\uc9c0\ub9cc, \ub0b4\uac00 \uc870\uc0ac\ud55c \ubc94\uc704 \ub0b4\uc5d0\uc11c\ub294 \uc774\uc0c1\uacfc \uac19\uc740 \uacf5\uc815\uc0c1\uc758 \ubb38\uc81c\uac00 \uc788\ub2e4. “\uc785\uc218 \uac00\ub2a5\ud55c \uae08\uc18d\uc778\uac00”\ub77c\ub294 \uc810\uc5d0\uc11c\ub294 \ud569\uaca9\uc774\ub2e4. \ud558\uc9c0\ub9cc “\uc81c\uc870 \uac00\ub2a5\ud55c\uac00”\uc5d0 \ub300\ud55c \ub300\ub2f5\uc740, \uc544\uc9c1\uc740 Yes\ub77c\uace0 \ud560 \uc218\ub294 \uc5c6\ub2e4. <\/p>\n

6.5. \ubcf4\ub860 \uce74\ubc14\uc774\ub4dc\uc640 \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc Boron Carbide and Silicon Carbide <\/p>\n

\ub9ac\ud2ac \uc774\uc678\uc5d0\ub3c4 \uc54c\ubbf8\ub284\uacfc \uba54\ud0c8 \uba54\ud2b8\ub9ad\uc2a4\ub97c \ud615\uc131\ud558\ub294 \uc18c\uc7ac\ub85c, \ubcf4\ub860 \uce74\ubc14\uc774\ub4dc(B4C), \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc(Si4C)\uac00 \uc788\ub2e4. \uc774 \uae08\uc18d\ub4e4\uc744 \uc54c\ubbf8\ub284\uc5d0 \ubc30\ud569\ud558\uba74, \uc774\ub860\uc801\uc73c\ub85c\ub294 \ub180\ub77c\uc6b8 \uc815\ub3c4\ub85c \ubb3c\uc131(\u7269\u6027)\uc774 \uac1c\uc120\ub41c\ub2e4. \ud558\uc9c0\ub9cc \uc774 \uacbd\uc6b0 \uc5ed\uc2dc \uacf5\uc815\uba74\uc5d0 \ubb38\uc81c\uac00 \uc788\ub2e4. \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc\ub294 \ubc18\uc751\ud558\uae30 \uc27d\uace0 \uc6a9\uc811\ubd80\uac00 \ubd80\uc11c\uc9c0\uae30 \uc26c\uc6b4 \uc131\uc9c8\uc774 \uc788\ub2e4. \uc6a9\uc735\uc0c1\ud0dc\uc5d0\uc11c\ub294 \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc\ub294 \uc54c\ubbf8\ub284\uacfc \ubc18\uc751\ud574\uc11c \uc54c\ubbf8\ub284 \uce74\ubc14\uc774\ub4dc\ub97c \uc0dd\uc131\ud55c\ub2e4. \uc774 \ud569\uae08\uc740 \uac15\ub3c4(\u5f3a\u5ea6)\uac00 \ub0ae\uace0 \ubb3c\uc5d0 \ub179\uc744 \uc815\ub3c4\ub85c \ubc18\uc751\ud558\uae30 \uc27d\ub2e4. <\/p>\n

\uc6a9\uc811\uc744 \ud558\uace0 \ub098\uc11c \ubb3c\uc5d0 \ub179\uc744 \uc815\ub3c4\ub85c\uc57c \uc790\uc804\uac70 \ud504\ub808\uc784\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218\uac00 \uc5c6\ub2e4. \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc\uc758 \ub192\uc740 \ubc18\uc751\uc131\uc740 \uc6a9\uc811\uae30\uc220\uc5d0 \uae30\uc778\ud55c\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\uc758 \ubb38\uc81c\uac00, \uc774\ubbf8 \uc2dc\uc7a5\uc5d0 \ubaa8\uc2b5\uc744 \ubcf4\uc774\uace0 \uc788\ub294 \uc0b0\ud654\uc54c\ubbf8\ub284 MMC(\uba54\ud0c8 \ub9e4\ud2b8\ub9ad\uc2a4)\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \uc801\uc6a9\ub418\uc9c0\ub9cc, \uc815\ub3c4\uac00 \ubbf8\uc57d\ud558\ub2e4\ub294 \ucc28\uc774\uac00 \uc788\ub2e4. \uc774\ub7f0 \ubb38\uc81c\uac00 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc2e4\ub9ac\ucf58 \uce74\ubc14\uc774\ub4dc\ub294 \uc790\uc804\uac70\uc5d0\ub294 \uac70\uc758 \uc774\uc6a9\ub418\uc9c0 \ubabb\ud558\uc9c0\ub9cc, \uadf8 \uae30\uacc4\uc801 \uc131\uc9c8\uc740 \ub9e4\ub825\uc801\uc774\ub2e4. <\/p>\n

\ubcf4\ub860 \uce74\ubc14\uc774\ub4dc\ub294 MMC \ubcf4\ub784\ub9b0\uc5d0 \uc0ac\uc6a9\ub418\uace0 \uc788\ub294\ub370, \uadf8 \uc678\uc5d0\ub3c4 \ubcf4\ub860\uac15\ud654(\u5f3a\u5316)\uc54c\ubbf8\ub284 \ud569\uae08\uc774 \uac1c\ubc1c\ub418\uc5b4 \uc788\ub2e4. \uc774\uc911 \uba87 \uac00\uc9c0\ub294 \uba87\uba87 \uba54\uc774\ucee4\uac00 \ud14c\uc2a4\ud2b8 \uc911\uc774\ub2e4. \uc218\ub144 \uc548\uc5d0 \uc2dc\uc7a5\uc5d0 \ubaa8\uc2b5\uc744 \ub098\ud0c0\ub0bc \uac00\ub2a5\uc131\uc774 \ub192\ub2e4\uace0 \uc0dd\uac01\ub41c\ub2e4. \ud37c\uc2dc\ub9ad \uba54\ud0c8 \ud06c\ub798\ud504\ud2b8(Pacific Metal Craft)\uc0ac(\u793e)\ub294, B4C\ub77c\ub294 \ud569\uae08\uc744 \uc81c\uc870\ud558\uace0 \uc788\ub294\ub370, \ubc1c\ud45c\uc5d0 \uc758\ud558\uba74 \uc720\ub9dd\ud55c \uc18c\uc7ac\ub85c \uc5ec\uaca8\uc9c4\ub2e4. \uc774 \ud569\uae08\uc740 6013 \uc54c\ubbf8\ub284 \ud569\uae08\uc5d0 15%\uc758 \ubcf4\ub860 \uce74\ubc14\uc774\ub4dc\ub97c \ubc30\ud569\ud55c \uac83\uc73c\ub85c, \ubc1c\ud45c\uc5d0 \uc758\ud558\uba74, \ud56d\ubcf5\uc810 \uac15\ub3c4(\u5f3a\u5ea6)\uac00 52-56ksi, \uadf9\ud55c\uac15\ub3c4(\u6975\u9650\u5f3a\u5ea6)\uac00 65-72ksi, \uc601\ub960(\uf961)\uc774 14-15msi, \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774 4.5-6% \uc815\ub3c4\ub2e4. 6013 \uc54c\ubbf8\ub284\uc740 \uace0\uac15\ub3c4(\u5f3a\u5ea6)\uc758 \ud569\uae08\uc73c\ub85c, \uc54c\ubbf8\ub284 \ud569\uae08 \uc911\uc5d0\uc11c \ub6f0\uc5b4\ub09c \uc778\uc131(\u976d\u6027)\uc744 \uac00\uc9c0\uc9c0\ub9cc, \uc138\ub77c\ubbf9\uc758 \ud558\ub098\uc778 \ubcf4\ub860 \uce74\ubc14\uc774\ub4dc\ub97c \ubc30\ud569\ud558\uba74 \uac15\ub3c4(\u5f3a\u5ea6)\ub294 \uc57d\uac04 \ub5a8\uc5b4\uc9c4\ub2e4. <\/p>\n

\uc774 \ud569\uae08\uc758 \uc7a5\uc810\uc73c\ub85c, \uac00\uacf5\ud558\uae30\uac00 \uc27d\ub2e4\ub294 \uc810\uc744 \ub4e4 \uc218 \uc788\ub2e4. \ud558\uc9c0\ub9cc \ubaa8\ub4e0 \ubcf4\ub860 \uce74\ubc14\uc774\ub4dc\uc758 \ud488\uc9c8\uc774 \ub3d9\ub4f1\ud558\uc9c0\ub294 \uc54a\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uba85\uc2ec\ud574 \uc8fc\uae30 \ubc14\ub780\ub2e4. \ud1a0\ub300\uac00 \ub418\ub294 \uc54c\ubbf8\ub284 \ud569\uae08\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \ud488\uc9c8\uc740 \ucc9c\ucc28\ub9cc\ubcc4\uc774\ub2e4. \ubcf4\ub860 \uce74\ubc14\uc774\ub4dc\uc5d0 \ub300\ud55c \ud3c9\uac00\ub294 \uc544\uc9c1 \uc2dc\uae30\uc0c1\uc870\ub2e4. <\/p>\n

6.6. \ubca0\ub9b4\ub968 Beryllium <\/p>\n

\ubbff\uae30 \ud798\ub4e4 \uc9c0 \ubaa8\ub974\uaca0\uc9c0\ub9cc, \ud2f0\ud0c0\ub284\ubcf4\ub2e4 \ud6e8\uc52c \ube44\uc2fc \uae08\uc18d\uc774 \uc788\ub2e4. \ubca0\ub9b4\ub968\uc774 \ubc14\ub85c \uadf8\uac83\uc774\ub2e4. \ubca0\ub9b4\ub968\uc758 \ubc00\ub3c4\ub294 1.82\ub85c \uc54c\ubbf8\ub284\uc758 2\/3\uc5d0 \ubd88\uacfc\ud55c, \ub9e4\uc6b0 \uac00\ubcbc\uc6b4 \uae08\uc18d\uc774\ub2e4. \ubc00\ub3c4 \uc774\uc678\uc5d0\ub3c4, \ubca0\ub9b4\ub968\uc740 \uba87 \uac00\uc9c0 \ub180\ub784\ub9cc\ud55c \uae30\uacc4\uc801 \uc131\uc9c8\uc744 \uac00\uc9c0\uace0 \uc788\ub2e4. \ubca0\ub9b4\ub968\uc758 \ube44\uac15\ub3c4(\u6bd4\u5f3a\u5ea6)(\uac15\ub3c4(\u5f3a\u5ea6)\/\ubc00\ub3c4)\ub294 \ub9e4\uc6b0 \ub192\uace0, \ube44\uac15\uc131(\u6bd4\u525b\u6027)(\uc601\ub960(\uf961)\/\ubc00\ub3c4)\uc740 \uc9c0\uad6c\uc0c1\uc758 \ubaa8\ub4e0 \uae08\uc18d \uc911 \uac00\uc7a5 \ub6f0\uc5b4\ub098\ub2e4. \ud558\uc9c0\ub9cc, \ubca0\ub9b4\ub968\uc740 \ub9e4\uc6b0 \ud76c\uadc0\ud558\ub2e4. \uc5bc\ub9c8\ub098 \ube44\uc2f8\ub0d0 \ud558\uba74, \uc54c\ubbf8\ub284\uc758 200\ubc30\ub098 \ub41c\ub2e4. <\/p>\n

\uc5ed\uc790: \uc6d0\ubb38\uc5d0\ub294 \ubca0\ub9b4\ub968\uc758 \ubb3c\uc131(\u7269\u6027)\uc5d0 \ub300\ud55c \uc124\uba85\uc774 \uc5bc\ub9c8 \uc815\ub3c4 \ub354 \uc788\uc9c0\ub9cc, \uc544\ub9c8 \ubca0\ub9b4\ub968 \uc790\uc804\uac70\ub97c (\uc788\ub2e4\uba74) \ud0c8 \uc218 \uc788\ub294 \uc0ac\ub78c\uc740 \uc804\ubb34\ud560 \uac78\ub85c \uc0dd\uac01\ud574\uc11c, \uc774\ud558\ub294 \uc0dd\ub7b5\ud569\ub2c8\ub2e4. <\/p>\n

6.7. \uc5d0\uc5b4\uba67 100 AerMet 100 <\/p>\n

\uc5d0\uc5b4\uba67 100\uc740 \uc720\ub9dd\ud55c \uc18c\uc7ac\ub85c, \ucd5c\uadfc \uc790\uc804\uac70 \uc5c5\uacc4\uc758 \uc8fc\ubaa9\uc744 \ubaa8\uc73c\uace0 \uc788\ub2e4. \ucca0\uacc4\uc758 \ud569\uae08\uc778\ub370, \uce74\ud39c\ud130 \ud14c\ud06c\ub180\ub85c\uc9c0(Carpenter Technolog Corporation)\uc0ac(\u793e)\uc758 \ub808\uc774 \ud5f4\ud544(Ray Hemphill)\uacfc \ub370\uc774\ube0c \uc6cc\ud2b8(Dave Wert)\uac00 1992\ub144 \ud2b9\ud5c8\ub97c \ucde8\ub4dd\ud588\ub2e4. \ud604\uc7ac \uba87\uba85\uc758 \ud504\ub808\uc784 \ube4c\ub354\uac00 \uc774 \uc18c\uc7ac\ub85c \uc2e4\ud5d8\uc744 \ud558\uace0 \uc788\ub2e4. \uc5d0\uc5b4\uba67 100\uc758 \ub180\ub77c\uc6b4 \ubb3c\uc131(\u7269\u6027)\uc744 \uc0b4\ud3b4 \ubcf4\uc790. \ubc00\ub3c4\ub294 7.89\ub85c \ud06c\ub85c\ubab0\ub9ac\uc640 \uac70\uc758 \ube44\uc2b7\ud558\uc9c0\ub9cc(\uc0c1\ub2f9\ub7c9\uc758 \ub2c8\ucf08\uacfc \ucf54\ubc1c\ud2b8\ub97c \ud3ec\ud568\ud558\uace0 \uc788\uae30 \ub54c\ubb38\uc778\ub370, \uc774 \ub450 \uae08\uc18d\uc758 \ubc00\ub3c4\ub294 8.85 \ubc0f 8.8\ub85c \ucca0\ubcf4\ub2e4 \ub192\ub2e4), \uac15\ub3c4(\u5f3a\u5ea6)\uc5d0\uc11c\ub294, \uc6a9\uc811\uac00\ub2a5\ud55c \uc2a4\ud2f8\uacfc \uadf8\uc678 \ub2e4\ub978 \uc18c\uc7ac\ub97c \ub2a5\uac00\ud55c\ub2e4. \uce74\ud39c\ud130 \ud14c\ud06c\ub180\ub85c\uc9c0\uc0ac(\u793e)\uac00 \uc81c\uacf5\ud55c \uc18c\uc7ac\ub85c Velonews\uac00 1993\ub144 12\uc6d4 13\uc77c\ud638\uc5d0\uc11c \uc2e4\uc2dc\ud55c \ud14c\uc2a4\ud2b8\uc5d0\uc11c, \uc5d0\uc5b4\uba67 100\uc740 \ucd5c\uc800 261ksi\uc758 \ud56d\ubcf5\uc810\uac15\ub3c4(\u5f3a\u5ea6)\uc640 300ksi\uc758 \uadf9\ud55c\uac15\ub3c4(\u6975\u9650\u5f3a\u5ea6)\ub97c \uae30\ub85d\ud588\ub2e4. \ub180\ub77c\uc6b8 \uc815\ub3c4\uc758 \uae30\ub85d\uc774\ub2e4. <\/p>\n

\uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027) \ub610\ud55c \ub6f0\uc5b4\ub09c\ub370, \uc704\uc758 \ud14c\uc2a4\ud2b8\uc5d0\uc11c\ub294 10%\ub97c \uae30\ub85d\ud588\ub2e4. \uc601\ub960(\uf961)\uc758 \uacbd\uc6b0\uc5d0\ub294, \uc2a4\ud2f8\ub85c\uc11c\ub294 \ud3c9\uade0\uc801\uc778 28msi\ub97c \uae30\ub85d\ud588\ub2e4. \uce74\ud39c\ud130 \ud14c\ud06c\ub180\ub85c\uc9c0\uc0ac(\u793e)\uc5d0 \uc758\ud558\uba74, \uc774 \ud569\uae08\uc740, \ub192\uc740 \uac15\ub3c4(\u5f3a\u5ea6)\uc640 \uc778\uc131(\u976d\u6027), \uc751\ub825\ubd80\uc2dd(\u61c9\u529b\u8150\u8755)\uc5d0 \uc758\ud55c \ud30c\uad34\uc640 \ud53c\ub85c\uc5d0 \ub300\ud574 \ub9e4\uc6b0 \ub6f0\uc5b4\ub09c \ub0b4\uc131\uc774 \ud544\uc694\ub418\ub294 \ubd84\uc57c\uc5d0 \uc801\ud569\ud55c \uc18c\uc7ac\ub77c\uace0 \ud55c\ub2e4. <\/p>\n

\uacb0\uc810\uc740 \uc5c6\uc744\uae4c? \ud2b9\ud788 \uacb0\uc810\uc774\ub77c\uace0 \ud560 \ub9cc\ud55c \uc810\uc740 \uc5c6\uc9c0\ub9cc, \uadf9\ubcf5\ud574\uc57c \ud560 \uacfc\uc81c\ub294 \uba87 \uac00\uc9c0 \uc788\ub2e4. \uc774\ubbf8 \uc9d0\uc791\ud588\uc744 \uc9c0 \ubaa8\ub974\uaca0\uc9c0\ub9cc, \uc5d0\uc5b4\uba67 100\uc740 \uac00\uaca9\uc774 \ube44\uc2f8\ub2e4. \ud2f0\ud0c0\ub284\uc758 \ubc18-2\/3 \uc815\ub3c4 \ub420\uae4c. \ub610 \ud55c \uac00\uc9c0, \ubc84\ud2f0\ub4dc \uac00\uacf5\uacfc \ud14c\uc774\ud37c \uac00\uacf5(\uc5ed\uc8fc: \ud29c\ube0c\uc758 \uc9c1\uacbd\uc744, \uac08\uc218\ub85d \uc587\uac8c \ud639\uc740 \ub450\uaecd\uac8c \ub9cc\ub4dc\ub294 \ubc29\ubc95)\uc774 \uc544\uc9c1 \ubd88\uac00\ub2a5\ud558\ub2e4(\ud604\uc7ac \uac1c\ubc1c\uc911). \uce74\ud39c\ud130 \ud14c\ud06c\ub180\ub85c\uc9c0\uc0ac(\u793e)\ub294 \ud604\uc7ac \uc2a4\ud14c\uc774(\uc5ed\uc8fc: \uccb4\uc778 \uc2a4\ud14c\uc774, \uc2dc\ud2b8 \uc2a4\ud14c\uc774, \uc790\uc804\uac70\uc758 \ubd80\uc704\ubcc4 \uba85\uce6d)\uc758 \ubcc0\ud615 \uac00\uacf5\uc5d0 \uc131\uacf5\ud588\ub294\ub370, \uc774\uac83\uc740 \uace7 \uc0c1\uc6a9\ud654\ub420 \uac83\uc73c\ub85c \ubcf4\uc778\ub2e4. \ub610\ud55c \uc5d0\uc5b4\uba67 100\uc740 4130 \ud06c\ub85c\ubab0\ub9ac\uc5d0 \uc6a9\uc811\ud560 \uc218\ub3c4 \uc788\ub2e4. \ub530\ub77c\uc11c, \ud14c\uc774\ud37c \uac00\uacf5\ub41c \uc2a4\ud14c\uc774 \ub4f1\uc758 \ud45c\uc900\uc801\uc778 \uc7a5\ube44\ub97c \uc27d\uac8c \uc7a5\ucc29\ud560 \uc218 \uc788\ub2e4. <\/p>\n

\uacb0\uc810\uc744 \ud55c \uac00\uc9c0\ub9cc \ub4e4\uc790\uba74, \uc2a4\ud2f8\uacfc \ub9c8\ucc2c\uac00\uc9c0\ub85c \ubc00\ub3c4\uac00 \ub192\ub2e4\ub294 \uc810\uc774\ub2e4. \ud558\uc9c0\ub9cc \uc774 \uc18c\uc7ac\ub97c \uc774\uc6a9\ud574 \ucda9\ubd84\ud55c \uac15\ub3c4(\u5f3a\u5ea6)\ub97c \uac00\uc9c0\uba74\uc11c\ub3c4 \uac00\ubcbc\uc6b4 \ud504\ub808\uc784\uc744 \ub9cc\ub4e4 \uc218 \uc788\ub294 \uac00\ub2a5\uc131\uc774 \uc788\ub2e4. \uc774 \uacbd\uc6b0, \ucd5c\ub300\uc758 \uacfc\uc81c\ub294 \uc5ed\uc2dc \ub9e5\uc8fc\uce94 \ud6a8\uacfc\ub97c \uc5b4\ub5bb\uac8c \ud574\uacb0\ud558\ub290\ub0d0 \ud558\ub294 \uc810\uc774\ub2e4. 1kg \uc774\ud558\uc758 \ud504\ub808\uc784\uc744 \ub9cc\ub4dc\ub294 \uac83\uc774 \ud504\ub808\uc784 \ube4c\ub354\ub4e4\uc758 \ud070 \ubaa9\ud45c\ub77c\uace0 \ud560 \uc218 \uc788\ub294\ub370, \uc5d0\uc5b4\uba67 100\uc73c\ub85c \uc774\uac83\uc744 \uc2e4\ud604\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc0c1\ub2f9\ud55c \ub178\ub825\uc744 \ud544\uc694\ub85c \ud55c\ub2e4. \ud558\uc9c0\ub9cc 1.5kg \uc815\ub3c4\uc758 \ubb34\uac8c\ub77c\uba74 \ub9e4\uc6b0 \ub0b4\uad6c\uc131\uc774 \ub6f0\uc5b4\ub09c \ud504\ub808\uc784\uc744 \ub9cc\ub4dc\ub294 \uac83\uc740 \uac00\ub2a5\ud558\ub2e4. \ud604\uc7ac, \ucf08\ub85c\uadf8(Kellogg), \ub370\uc774\ube44\ub4dc\uc2a8(Davidson), \ucee4\ube0c(Curve), \uc560\ub85c\uc6b0(Arrow) \ub4f1\uc758 \ud504\ub808\uc784 \ube4c\ub354\ub4e4\uc774 \uc5d0\uc5b4\uba67 100\uc758 \ud504\ub808\uc784\uc744 \ub9cc\ub4e4\uace0 \uc788\ub2e4. <\/p>\n

6.8. \uc218\uc218\uaed8\ub07c\uc758 \uc18c\uc7ac(\u7d20\u6750)… And Now for a Mystery Metal… <\/p>\n

\uac8c\ub9ac \ud5ec\ud504\ub9ac\ud788(Gary Helfrich)\uac00 \uc5bc\ub9c8 \uc804 \uafc8\uacfc \uac19\uc740 \uae30\uacc4\uc801 \uc131\uc9c8\uc744 \uac00\uc9c4 \uc18c\uc7ac\ub97c \uc18c\uac1c\ud574 \uc900 \uc801\uc774 \uc788\ub2e4. \uadf8\uc758 \ub9d0\uc5d0 \uc758\ud558\uba74, <\/p>\n

\ubc00\ub3c4: 2.3 \uc54c\ubbf8\ub284\ubcf4\ub2e4 15% \ub0ae\ub2e4
\n\ud56d\ubcf5\uc810\uac15\ub3c4(\u5f3a\u5ea6): 510ksi \uc54c\ubbf8\ub284\uc758 12\ubc30
\n\uc601\ub960(\uf961): 18msi \uc54c\ubbf8\ub284\uc758 1.8\ubc30
\n\ube44\uac15\ub3c4(\u6bd4\u5f3a\u5ea6): \uc54c\ubbf8\ub284\uc758 14\ubc30 <\/p>\n

\uc774 \uc18c\uc7ac\ub85c \ud504\ub808\uc784\uc744 \ub9cc\ub4e0\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uc790. \uc601\ub960(\uf961)\uc774 \ud2f0\ud0c0\ub284\uacfc \ube44\uc2b7\ud558\uae30 \ub54c\ubb38\uc5d0, \ud2f0\ud0c0\ub284\uacfc \ub3d9\uc77c\ud55c \uc815\ub3c4\uc758 \uc2b9\ucc28\uac10\uc744 \ub0bc \uc218 \uc788\ub3c4\ub85d, \uc9c1\uacbd 3cm, \ub450\uaed8 0.76mm\uc758 \ud1b1 \ud29c\ube0c\uc640 \uc2dc\ud2b8 \ud29c\ube0c, \uadf8\ub9ac\uace0 \uc9c1\uacbd 3.5mm, \ub450\uaed8 0.84mm\uc758 \ub2e4\uc6b4 \ud29c\ube0c\ub97c \ub9cc\ub4e0\ub2e4\uace0 \ud574\ubcf4\uc790. \ud504\ub808\uc784\uc758 \ubb34\uac8c\uac00 \uc5b4\ub290\uc815\ub3c4\ub77c\uace0 \uc608\uc0c1\ud558\uc2e4\uae4c? \ub180\ub77c\uc9c0 \ub9c8\uc2dc\ub77c. \uaca8\uc6b0 600g\uc5d0 \ubd88\uacfc\ud558\ub2e4! <\/p>\n

\uadf8\ub7f0\ub370 \ubb50\uac00 \ubb38\uc81c\uc77c\uae4c. \uce74\ubcf8\uc758 \ubb38\uc81c\uc810\uc744 \uc78a\uc9c0 \uc54a\uace0 \uc788\ub2e4\uba74 \uc9d0\uc791\ud560 \uc218 \uc788\uc744 \uac83\uc774\ub2e4. \uc774 \uc18c\uc7ac\ub294 \uce74\ubcf8\uacfc \ub9c8\ucc2c\uac00\uc9c0\ub85c \uc2e0\uc7a5\uc131(\u4f38\u5f35\u6027)\uc774 \uac70\uc758 0\uc5d0 \uac00\uae4c\uc6b4 \uac83\uc774\ub2e4 <\/p>\n

\ucd9c\ucc98 \ubc0f \ubc88\uc5ed : \uc2ec \uc21c\ud64d, http:\/\/my.netian.com\/~punyo\/index.html <\/p>\n

\nhttp:\/\/www.corearoadbike.com\/page\/cycling_map_page\/cycling_map20.htm <\/p>\n

\n\uc2a4\uce78\ub4d0\uc5d0 \ub300\ud55c \uc0c1\uc2dd <\/p>\n

\n*\uc2a4\uce78\ub4d0\uc740 \uc9c0\uad6c\uc758 8\ub300 \ud76c\uadc0\uc6d0\uc18c\uc911 \ud558\ub098\uc774\ub2e4.
\n*\uc2a4\uce78\ub4d0\uc740 \uc9c0\uad6c\ubcf4\ub2e4 \ud0dc\uc591\uc5d0 \ub354 \ud48d\ubd80\ud558\ub2e4.
\n*\uc2a4\uce78\ub4d0\uc740 \uc8fc\uae30\uc728\ud45c\uc0c1\uc758 21\ubc88\uc9f8 \uc6d0\uc18c\uc774\ub2e4.
\n*\uc2a4\uce78\ub4d0\uc740 1879\ub144 Lars Nilson\uc774 \ubc1c\uacac\ud558\uc600\ub2e4
\n*\uc2a4\uce78\ub4d0\uc740 \ub7ec\uc2dc\uc544 \ubbf8\uadf8-29 \uc804\ud22c\uae30\uc758 \uc7ac\ub8cc\uc774\ub2e4.
\n*\uc2a4\uce78\ub4d0\uc740 \uad11\ubb3c\uc5d0\uc11c \ubd84\ub9ac\ud558\uae30\uac00 \ub9e4\uc6b0 \uc5b4\ub835\ub2e4
\n*\uc54c\ubbf8\ub284 \ud569\uae08\uc5d0 \uc2a4\uce78\ub4d0\uc774 \ucca8\uac00\ub418\uc5b4\ub3c4 \uac15\ub3c4\uac00 \uc99d\uac00\ud558\ub294\uac83\uc740 \uc544\ub2c8\ub2e4. <\/p>\n

\uc2a4\uce78\ub4d0\uc758 \uc787\uc810\uc5d0 \ub300\ud558\uc5ec \ub17c\ud558\uae30 \uc704\ud574\uc11c \uba3c\uc800 \uc2a4\uce78\ub4d0\uc774 \ud560 \uc218 \uc5c6\ub294 \uac83\uc5d0 \ub300\ud558\uc5ec \uc598\uae30\ucf54\uc790 \ud55c\ub2e4.
\n\uc2a4\uce78\ub4d0\uc740 \uc54c\ub85c\uc774\ub97c \uac15\ud558\uac8c \ub9cc\ub4e4\uc5b4 \uc904 \uc218\ub294 \uc5c6\ub2e4. <\/p>\n

\ucc28\uccb4\ub85c \uc4f0\uc774\ub294 \uc54c\ubbf8\ub284 \ud569\uae08\uc758 \uc870\uac74\uc5d0 \ub300\ud558\uc5ec \uc54c\uc544\ubcf4\uc790. <\/p>\n

\uae08\uc18d\uc774 \ucc28\uccb4\uc5d0 \uc4f0\uc774\ub824\uba74 \uc6a9\uc811\uc2dc\uc758 \uc5f4\uc744 \uc774\uaca8\ub0bc \uc218 \uc788\uc5b4\uc57c \ud55c\ub2e4.
\n\uadf8\ub7ec\ub098 \uc6a9\uc811\uc774 \uac00\ub2a5\ud55c \uc54c\ubbf8\ub284\ud569\uae08\uc740 \ub300\ubd80\ubd84\uc758 6000\uc2dc\ub9ac\uc988\uc640 \uba87\uba87 7000\uc2dc\ub9ac\uc988\uc758 \uc54c\ub85c\uc774 \ubfd0\uc73c\ub85c \ub9ce\uc9c0 \uc54a\ub2e4.
\n\ub180\ub78d\uac8c\ub3c4 \uc774\ub807\uac8c \ucc28\uccb4\uc5d0 \uc4f0\uc774\uace0 \uc788\ub294 \uc54c\ub85c\uc774\ub294 \uc54c\ubbf8\ub284 \ud569\uae08\uc911 \uc800\uac15\ub3c4\uc5d0 \ud574\ub2f9\ud558\ub294 \uac83\uc774\ub2e4.
\n\uc774\ub4e4\uc758 \uac15\ub3c4(yield strength)\ub294 35\uc5d0\uc11c 45ksi\uc758 \ubc94\uc704\uc5d0 \uc788\ub2e4. <\/p>\n

\ub530\ub77c\uc11c \uc774\ub807\uac8c \uc57d\ud55c \uac15\ub3c4\uc758 \uc54c\ubbf8\ub284\uc744 \ucc28\uccb4\uc5d0 \uc4f0\uae30 \uc704\ud558\uc5ec\ub294 \uadf8 \uad6c\uc870\uc0c1 \ud29c\ube0c\uc758 \uc9c0\ub984\uc774 \ucee4\uc838\uc57c\ub9cc \ud558\uace0
\n\uc774\uc5d0 \ub530\ub77c \ubee3\ubee3\ud55c(stiff) \ucc28\uccb4\uac00 \ub418\ub294 \ub2e8\uc810\uc774 \uc788\ub2e4. <\/p>\n

\ucc28\uccb4\uc5d0 \uc4f0\uc774\ub294 \uae08\uc18d\uc758 \uac15\ub3c4\ub97c \ube44\uad50\ud574\ubcf4\uba74..
\n\ucca0\uc740 \uac00\uc7a5 \ud070 \uac15\ub3c4\ub97c \uac00\uc9c0\uace0 \uc788\uc5b4\uc11c(150ksi\uc774\uc0c1) \uac00\uc7a5 \uc587\uc740 \ud29c\ube0c\ub97c \ub9cc\ub4e4 \uc218 \uc788\ub2e4.
\n\uc54c\ubbf8\ub284\uc740 \uac00\uc7a5 \ub450\uaebc\uc6b4 \ud29c\ube0c\ub85c \ub9cc\ub4e4\uc5b4\uc838\uc57c \ud55c\ub2e4.(\uac15\ub3c435~42ksi)
\n\ud2f0\ud0c0\ub284\uc740 \uc911\uac04\uac12\uc744 \uac00\uc9c4\ub2e4.(\uac15\ub3c485ksi) <\/p>\n

\uac00\ub294 \ud29c\ube0c\ub294 \uba87\uac00\uc9c0 \uc787\uc810\uc744 \uc81c\uacf5\ud574\uc900\ub2e4.
\n\uc774\ub294 \ud3b8\uc548\ud55c \uc2b9\ucc28\uac10\uacfc \ubb34\uac8c\uac10\uc18c \ud6a8\uacfc\ub97c \uac00\uc838\uc628\ub2e4.
\n\uc2a4\uce78\ub4d0\uc774 \ucca8\uac00\ub41c \uc54c\ub85c\uc774\ub294 \uc774\ub807\uac8c \uac00\ub294 \ud29c\ube0c\ub97c \ub9cc\ub4e4\uae30 \uc704\ud574 \uac1c\ubc1c\ub418\uc5c8\ub2e4. <\/p>\n

\uc774\ubbf8 \uc5b8\uae09\ub418\uc5c8\ub4ef\uc774 \uc2a4\uce78\ub4d0\uc774 \ucca8\uac00\ub41c\ub2e4\uace0 \ud574\uc11c \uc54c\ub85c\uc774\uac00 \uac15\ud574\uc9c0\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4.
\n\uadf8\ub7ec\ub098 \uc6a9\uc811\uc131\uc774 \uc5c6\ub294 \uc54c\ub85c\uc774\uc5d0 \uc2a4\uce78\ub4d0\uc774 \ucca8\uac00\ub418\uba74 \uc6a9\uc811\uc131\uc774 \uc88b\uc544\uc9c4\ub2e4.
\n\uc2a4\uce78\ub4d0\uc740 \uc54c\ub85c\uc774\uc5d0 \uc801\ub2f9\ub7c9 \ucca8\uac00\ub418\uc5b4 \uac15\ub825\ud55c grain refiner(\uc131\uae34 \uc870\uc9c1\uc744 \uc138\ubc00\ud558\uac8c \ub9cc\ub4e4\uc5b4\uc8fc\ub294 \uc7ac\ub8cc)\uc758 \uc5ed\ud560\uc744 \ud558\uac8c \ub41c\ub2e4.
\n\uac15\ub3c4\ub294 \uac15\ud558\uc9c0\ub9cc \uc6a9\uc811\uc131\uc774 \uc5c6\uc5b4\uc11c \ucc28\uccb4\uc5d0 \uc4f0\uc77c \uc218 \uc5c6\ub294 \uc54c\ubbf8\ub284 \ud569\uae08\ub4e4\uc774 \uc788\ub2e4.
\n\uc2a4\uce78\ub4d0\uc774 \uc774\ub7f0 \uc54c\ub85c\uc774\uc5d0 \ucca8\uac00\ub418\uba74 \uc6a9\uc811\uc131\uc744 \uc88b\uac8c \ub9cc\ub4e4\uc5b4\uc90c\uc73c\ub85c\uc368 \ucc28\uccb4\uc5d0 \uc4f0\uc77c \uc218 \uc788\ub294 \uae08\uc18d\uc774 \ub41c\ub2e4. <\/p>\n

\uc2a4\uce78\ub4d0 \uc54c\ub85c\uc774\uc758 \uac15\uc810\uc740 \uac00\uc5f4\ud6c4 \uae08\uc18d\uc758 \uc7ac\uacb0\uc815\ud654(recrystallization)\ub97c \ucd5c\uc18c\ud654 \uc2dc\ud0a4\ub294 \uac83\uc5d0 \uc788\ub2e4.
\n\uc5f4\uc740 \uc54c\ubbf8\ub284\uc758 \uc870\uc9c1\uc744 \uc131\uae30\uac8c \ub9cc\ub4e6\uc73c\ub85c\uc368 \ud53c\ub85c\uac15\ub3c4\ub97c \uc57d\ud558\uac8c \ud55c\ub2e4.
\n\uc2a4\uce78\ub4d0\uc740 \uc54c\ubbf8\ub284 \uae08\uc18d\uc758 \uc870\uc9c1\uc744 \uc138\ubc00\ud558\uac8c \ub9cc\ub4e4\uace0 \ub530\ub77c\uc11c \uc870\uc9c1\uc758 \ud2c8\uc744 \ucd5c\uc18c\ud654 \uc2dc\ud0b4\uc73c\ub85c\uc368 \uade0\uc5f4\uc774 \uc0dd\uae30\ub294 \uac83\uc744 \ub9c9\uc544\uc900\ub2e4. <\/p>\n

\uc77c\ubd80\uc5d0\uc11c\ub294 \uae30\uc874\uc758 \uc54c\ub85c\uc774\uc5d0 \uc2a4\uce78\ub4d0\uc744 \ucca8\uac00\uc2dc\ud0a4\ub294 \uac83\uc774 \uc2dc\ub3c4\ub418\uace0 \uc788\ub2e4.
\n\uadf8\ub7ec\ub098 \uc774\ubbf8 \ucc28\uccb4\ub85c \uc4f0\uc5ec\uc9c0\ub294 \uc54c\ub85c\uc774\uc5d0 \uc2a4\uce78\ub4d0\uc774 \ucca8\uac00\ub41c\ub2e4\uace0 \ud558\uba74 \uc2e4\uc81c\uc801\uc778 \uc774\ub4dd\uc774 \uc5c6\uc73c\uba70 \uac12\ube44\uc2fc \uc790\uc6d0 \ub0ad\ube44\uac00 \ub41c\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud55c\ub2e4. <\/p>\n

\uc774\uc2a4\ud134\uc0ac\uc758 \uc2a4\uce78\ub4d0 \uc54c\ub85c\uc774 Sc7000\uc758 \uac15\ub3c4\ub294 68ksi\uc774\ub2e4.
\n\uc2a4\uce78\ub4d0 \uc54c\ub85c\uc774\ub294 \uc77c\ubc18\uc801\uc778 \uc54c\ub85c\uc774\uc5d0 \ube44\ud574 \uac00\ubcbc\uc6b0\uba74\uc11c \uac15\ud558\uc5ec \uac00\ub294 \ud29c\ube0c\ub85c \uc81c\uc791\ub420 \uc218 \uc788\uace0 \ucc28\uccb4\uc758 \uc218\uba85\ub3c4 \uae38\ub2e4. <\/p>\n

\ucd9c\ucc98:
\nhttp:\/\/www.eastonbike.com\/downloadable_files\/r&d_files\/R&D-03%20Scandium.pdf<\/p>\n","protected":false},"excerpt":{"rendered":"

\uc790\uc804\uac70 \ud504\ub808\uc784\uc758 \uc7ac\ub8cc\ub85c\uc11c \uac00\uc7a5 \ub6f0\uc5b4\ub09c \uc18c\uc7ac(\u7d20\u6750)\ub294 \ubb34\uc5c7\uc77c\uae4c? \uc2a4\ud2f8, \uc54c\ubbf8\ub284, \ud2f0\ud0c0\ub284, \uc544\ub2c8\uba74 \uce74\ubcf8\uc77c\uae4c? \uc544\uc9c1 \uc77c\ubc18\ud654(\u4e00\u822c\u5316)\ub418\uc9c0\ub294 \uc54a\uc558\uc9c0\ub9cc \ud2b9\uc218\ud55c \uc18c\uc7ac\ub3c4 \uc788\ub2e4. \uc774 \ubb38\uc81c\ub294, “\ube44\ubc8c\ub9ac \ud790\uc988”\uc758 \uc0e4\ub17c(Shannon)\uc758 \ub300\uc5ed(\u4ee3\u5f79)\uc744 \ub204\uac00 \ud560 \uac83\uc778\uac00\ub9cc\ud07c \uc911\uc694\ud558\uc9c0\ub294 \uc54a\uaca0\uc9c0\ub9cc, \uc790\uc804\uac70 \uc911\ub3c5\uc790(\ub098\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\uc9c0\ub9cc)\uc5d0\uac8c \uc788\uc5b4\uc11c\ub294 \ub05d\uc5c6\ub294 \ub17c\uc7c1\uac70\ub9ac\ub97c \uc81c\uacf5\ud55c\ub2e4. \uc774 \uc2dc\ub9ac\uc988\ub294, \uc790\uc804\uac70\uc640 \uad00\ub828\ub41c \uc18c\uc7ac\uacf5\ud559\uc744 \uac80\ud1a0\ud558\uae30 \uc704\ud55c \uac83\uc774\ub2e4. \ub0b4\uc6a9\uc744 \uc774\ud574\ud558\uba74, \ud604\uc7ac \ud504\ub808\uc784\uc5d0 \uc0ac\uc6a9\ub418\uace0 \uc788\ub294 \uc8fc\uc694\ud55c \uc18c\uc7ac \uc804\ubd80\uc5d0 \ub300\ud55c \uc9c0\uc2dd\uc744 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/394"}],"collection":[{"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=394"}],"version-history":[{"count":0,"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/394\/revisions"}],"wp:attachment":[{"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=394"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sepira.dyndns.org\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}