{"id":608,"date":"2018-10-17T00:17:44","date_gmt":"2018-10-16T16:17:44","guid":{"rendered":"https:\/\/plasticmoldco.com\/?p=608"},"modified":"2018-10-17T00:17:44","modified_gmt":"2018-10-16T16:17:44","slug":"chapter-23alternative-cooling-devices","status":"publish","type":"post","link":"https:\/\/www.plasticmoldco.com\/ko\/2018\/10\/17\/23\uc7a5-\ub300\uccb4-\ub0c9\uac01-\uc7a5\uce58\/","title":{"rendered":"23\uc7a5, \ub300\uccb4 \ub0c9\uac01 \uc7a5\uce58"},"content":{"rendered":"<h1>\uadf8\ub4e4\uc740 \ubb34\uc5c7\uc744 \ud558\ub098\uc694?<\/h1>\n<p>\ubc30\ud50c\uacfc \ubc84\ube14\ub7ec\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub0c9\uac01\uc774 \ubd80\uc871\ud55c \uc601\uc5ed\uc73c\ub85c \ub0c9\uac01\uc218 \ud750\ub984\uc744 \uc804\ud658\ud558\ub294 \ub0c9\uac01 \ub77c\uc778\uc758 \uc77c\ubd80\uc785\ub2c8\ub2e4. \ub0c9\uac01 \ucc44\ub110\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ubab0\ub4dc \uce90\ube44\ud2f0\uc640 \ucf54\uc5b4\ub97c \ud1b5\ud574 \ub4dc\ub9b4\ub85c \ub6ab\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uae08\ud615\uc740 \uc77c\ubc18 \ub0c9\uac01 \ucc44\ub110\uc744 \uc218\uc6a9\ud558\uae30\uc5d0\ub294 \ub108\ubb34 \uba40\ub9ac \ub5a8\uc5b4\uc9c4 \uc601\uc5ed\uc73c\ub85c \uad6c\uc131\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc601\uc5ed\uc744 \ub098\uba38\uc9c0 \ubd80\ud488\uacfc \uade0\uc77c\ud558\uac8c \ub0c9\uac01\ud558\ub294 \ub2e4\ub978 \ubc29\ubc95\uc73c\ub85c\ub294 \uc544\ub798 \uadf8\ub9bc\uacfc \uac19\uc774 \ubc30\ud50c, \ubc84\ube14 \ub7ec \ub610\ub294 \uc368\uba40 \ud540\uc744 \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1261\" title=\"\ubc30\ud50c \ubc0f \ubc84\ube14 \ub7ec\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Baffles-and-bubblers.gif\" alt=\"\" width=\"511\" height=\"185\" \/><\/p>\n<h3>\uadf8\ub9bc 1. \ubc30\ud50c, \ubc84\ube14\ub7ec \ubc0f \uc368\uba40 \ud540<\/h3>\n<h1>\ubc30\ud50c<\/h1>\n<p>\ubc30\ud50c\uc740 \uc2e4\uc81c\ub85c \uc8fc \ub0c9\uac01 \ub77c\uc778\uc5d0 \uc218\uc9c1\uc73c\ub85c \ub6ab\ub9b0 \ub0c9\uac01 \ucc44\ub110\ub85c, \ud558\ub098\uc758 \ub0c9\uac01 \ud1b5\ub85c\ub97c \ub450 \uac1c\uc758 \ubc18\uc6d0\ud615 \ucc44\ub110\ub85c \ubd84\ub9ac\ud558\ub294 \ube14\ub808\uc774\ub4dc\uac00 \uc788\uc2b5\ub2c8\ub2e4. \ub0c9\uac01\uc218\ub294 \uc8fc \ub0c9\uac01 \ub77c\uc778\uc5d0\uc11c \ube14\ub808\uc774\ub4dc\uc758 \ud55c\ucabd\uc73c\ub85c \ud750\ub974\ub2e4\uac00 \ud301\uc744 \ub3cc\uc544 \ubc30\ud50c\uc758 \ubc18\ub300\ud3b8\uc73c\ub85c \ub3cc\uc544\uac04 \ub2e4\uc74c \ub2e4\uc2dc \uc8fc \ub0c9\uac01 \ub77c\uc778\uc73c\ub85c \ud750\ub985\ub2c8\ub2e4.<\/p>\n<p>\uc774 \ubc29\ubc95\uc740 \ub0c9\uac01\uc218\uc5d0 \ucd5c\ub300 \ub2e8\uba74\uc744 \uc81c\uacf5\ud558\uc9c0\ub9cc \ub514\ubc14\uc774\ub354\ub97c \uc911\uc559\uc5d0 \uc815\ud655\ud788 \uc7a5\ucc29\ud558\uae30\ub294 \uc5b4\ub835\uc2b5\ub2c8\ub2e4. \ub0c9\uac01 \ud6a8\uacfc\uc640 \uadf8\uc5d0 \ub530\ub978 \ucf54\uc5b4 \ud55c\ucabd\uc758 \uc628\ub3c4 \ubd84\ud3ec\uac00 \ub2e4\ub978 \ucabd\uc758 \uc628\ub3c4 \ubd84\ud3ec\uc640 \ub2e4\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc30\ud50c\uc744 \ud615\uc131\ud558\ub294 \uae08\uc18d \uc2dc\ud2b8\ub97c \ube44\ud2c0\uba74 \uc81c\uc870\uc5d0 \uad00\ud55c \ud55c \uacbd\uc81c\uc801 \uc778 \uc194\ub8e8\uc158\uc758 \uc774\ub7ec\ud55c \ub2e8\uc810\uc744 \uc81c\uac70 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uadf8\ub9bc 2 \uc544\ub798 \uadf8\ub9bc\uacfc \uac19\uc774 \ub098\uc120\ud615 \ubc30\ud50c\uc740 \ub098\uc120 \ud615\ud0dc\ub85c \ub0c9\uac01\uc218\ub97c \ud301\uc73c\ub85c \uc804\ub2ec\ud558\uace0 \ub2e4\uc2dc \ub098\uc120\ud615\uc73c\ub85c \ub418\ub3cc\ub824\uc90d\ub2c8\ub2e4. \uc9c1\uacbd 12~50mm\uc5d0 \uc720\uc6a9\ud558\uba70 \ub9e4\uc6b0 \uade0\uc77c\ud55c \uc628\ub3c4 \ubd84\ud3ec\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ubc30\ud50c\uc758 \ub610 \ub2e4\ub978 \ub17c\ub9ac\uc801\uc778 \uac1c\ubc1c\uc740 \uc544\ub798 \uadf8\ub9bc 2\uc640 \uac19\uc774 \ub2e8\uc77c \ub610\ub294 \uc774\uc911 \ube44\ud589 \ub098\uc120\ud615 \ucf54\uc5b4\uc785\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1262\" title=\"\ub300\uccb4 \ub0c9\uac01 \uc7a5\uce58\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Alternative-Cooling-Devices.gif\" alt=\"\" width=\"496\" height=\"205\" \/><\/p>\n<h3>\uadf8\ub9bc 2. (\uc67c\ucabd) \ub098\uc120 \ubc30\ud50c. (\uc624\ub978\ucabd) \ub098\uc120\ud615 \ubc30\ud50c.<\/h3>\n<h1>\ubc84\ube14\ub7ec<\/h1>\n<p>\ubc84\ube14 \ub7ec\ub294 \ube14\ub808\uc774\ub4dc\uac00 \uc791\uc740 \ud29c\ube0c\ub85c \uad50\uccb4\ub41c\ub2e4\ub294 \uc810\uc744 \uc81c\uc678\ud558\uba74 \ubc30\ud50c\uacfc \uc720\uc0ac\ud569\ub2c8\ub2e4. \ub0c9\uac01\uc218\ub294 \ubd84\uc218\ucc98\ub7fc \ud29c\ube0c\uc758 \uc544\ub798\ucabd\uc73c\ub85c \ud750\ub974\uace0 \uc704\ucabd\uc5d0\uc11c \"\uac70\ud488\"\uc744 \uc77c\uc73c\ud0b5\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \ub0c9\uac01\uc218\ub294 \ud29c\ube0c \ubc14\uae65\ucabd\uc73c\ub85c \ud758\ub7ec\ub0b4\ub824 \ub0c9\uac01 \ucc44\ub110\uc744 \ud1b5\ud574 \uacc4\uc18d \ud750\ub974\uac8c \ub429\ub2c8\ub2e4.<\/p>\n<p>\uac00\ub290\ub2e4\ub780 \ucf54\uc5b4\ub97c \uac00\uc7a5 \ud6a8\uacfc\uc801\uc73c\ub85c \ub0c9\uac01\ud558\ub294 \ubc29\ubc95\uc740 \ubc84\ube14 \ub7ec\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub450 \ub2e8\uba74\uc758 \ud750\ub984 \uc800\ud56d\uc774 \ub3d9\uc77c\ud558\ub3c4\ub85d \ub450 \uc9c1\uacbd\uc758 \uc9c1\uacbd\uc744 \uc870\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub97c \uc704\ud55c \uc870\uac74\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\ub0b4\uacbd\/\uc678\uacbd = 0.707<\/p>\n<p>\ubc84\ube14 \ub7ec\ub294 \uc2dc\uc911\uc5d0\uc11c \uad6c\uc785\ud560 \uc218 \uc788\uc73c\uba70 \uc544\ub798 \uadf8\ub9bc 3\uacfc \uac19\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \ucf54\uc5b4\uc5d0 \ub098\uc0ac\ub85c \uace0\uc815\ub429\ub2c8\ub2e4. \uc9c1\uacbd\uc774 \ucd5c\ub300 4mm\uc778 \uacbd\uc6b0 \ubc30\ucd9c\uad6c\uc758 \ub2e8\uba74\uc744 \ub113\ud788\uae30 \uc704\ud574 \ud29c\ube0c\uc758 \ub05d\uc744 \uacbd\uc0ac\uc9c0\uac8c \ud574\uc57c \ud558\uba70, \uc774 \uae30\uc220\uc740 \uadf8\ub9bc 3\uc5d0 \uc124\uba85\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \ubc84\ube14\ub7ec\ub294 \ucf54\uc5b4 \ub0c9\uac01\ubfd0\ub9cc \uc544\ub2c8\ub77c \ub4dc\ub9b4\ub9c1 \ub610\ub294 \ubc00\ub9c1 \ucc44\ub110\uc744 \uc7a5\ucc29\ud560 \uc218 \uc5c6\ub294 \ud3c9\ud3c9\ud55c \uae08\ud615 \uc139\uc158\uc744 \ub0c9\uac01\ud558\ub294 \ub370\uc5d0\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1263\" title=\"\ub0b4\uacbd\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Inner-Diameter.gif\" alt=\"\" width=\"538\" height=\"221\" \/><\/p>\n<p>\uadf8\ub9bc 3. (\uc67c\ucabd) \ucf54\uc5b4\uc5d0 \ub098\uc0ac\ub85c \uace0\uc815\ub41c \ubc84\ube14\ub7ec. (\uc624\ub978\ucabd) \ubc30\ucd9c\uad6c\ub97c \ud655\ub300\ud558\uae30 \uc704\ud574 \uacbd\uc0ac\uc9c4 \ubc84\ube14\ub7ec<\/p>\n<p><strong>\ucc38\uace0:<\/strong>\u00a0\ubc30\ud50c\uacfc \ubc84\ube14\ub7ec\ub294 \ubaa8\ub450 \ud750\ub984 \uc601\uc5ed\uc774 \uc881\uae30 \ub54c\ubb38\uc5d0 \ud750\ub984 \uc800\ud56d\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc774\ub7ec\ud55c \uc7a5\uce58\uc758 \ud06c\uae30\ub97c \uc124\uacc4\ud560 \ub54c \uc8fc\uc758\ub97c \uae30\uc6b8\uc5ec\uc57c \ud569\ub2c8\ub2e4. \ubc30\ud50c\uacfc \ubc84\ube14\ub7ec \ubaa8\ub450\uc758 \ud750\ub984 \ubc0f \uc5f4 \uc804\ub2ec \uac70\ub3d9\uc740 C-MOLD \ub0c9\uac01 \ud574\uc11d\uc744 \ud1b5\ud574 \uc27d\uac8c \ubaa8\ub378\ub9c1\ud558\uace0 \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h1>\uac10\uc5f4 \ud540<\/h1>\n<p>\uc368\uba40 \ud540\uc740 \ubc30\ud50c\uacfc \ubc84\ube14 \ub7ec\uc758 \ub300\uc548\uc785\ub2c8\ub2e4. \uc720\uccb4\ub85c \ucc44\uc6cc\uc9c4 \ubc00\ud3d0\ub41c \uc2e4\ub9b0\ub354\uc785\ub2c8\ub2e4. \uadf8\ub9bc 4\uc640 \uac19\uc774 \uc720\uccb4\ub294 \uacf5\uad6c\uac15\uc5d0\uc11c \uc5f4\uc744 \ub04c\uc5b4\ub2f9\uae30\uba74\uc11c \uae30\ud654\ub418\uace0 \ub0c9\uac01\uc218\ub85c \uc5f4\uc744 \ubc29\ucd9c\ud558\uba74\uc11c \uc751\ucd95\ub429\ub2c8\ub2e4. \uc5f4 \ud540\uc758 \uc5f4 \uc804\ub2ec \ud6a8\uc728\uc740 \uad6c\ub9ac \ud29c\ube0c\uc758 \uac70\uc758 10\ubc30\uc5d0 \ub2ec\ud569\ub2c8\ub2e4. \uc5f4 \uc804\ub3c4\ub97c \uc6d0\ud65c\ud558\uac8c \ud558\ub824\uba74 \uc368\uba40 \ud540\uacfc \uae08\ud615 \uc0ac\uc774\uc5d0 \uc5d0\uc5b4 \uac2d\uc774 \uc0dd\uae30\uc9c0 \uc54a\ub3c4\ub85d \ud558\uac70\ub098 \uc804\ub3c4\uc131\uc774 \ub192\uc740 \uc2e4\ub780\ud2b8\ub85c \ucc44\uc6b0\uc138\uc694.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1264\" title=\"\uc368\uba40 \ud540\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Thermal-pins.gif\" alt=\"\" width=\"443\" height=\"294\" \/><\/p>\n<h3>\uadf8\ub9bc 4. \uc368\uba40 \ud540 \uc5f4 \uc804\ub2ec \ud6a8\uc728<\/h3>\n<h1>\uc2ac\ub9bc\ud55c \ucf54\uc5b4 \ub0c9\uac01<\/h1>\n<p>\uc9c1\uacbd\uc774\ub098 \ud3ed\uc774 \ub9e4\uc6b0 \uc791\uc740 \uacbd\uc6b0(3mm \ubbf8\ub9cc) \uacf5\ub7ad\uc2dd \ub0c9\uac01\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4. \uacf5\uae30\ub294 \uadf8\ub9bc 5\uc640 \uac19\uc774 \uae08\ud615\uc744 \uc5ec\ub294 \ub3d9\uc548 \uc678\ubd80\uc5d0\uc11c \ucf54\uc5b4\ub85c \ubd88\uc5b4\ub123\uac70\ub098 \ub0b4\ubd80\uc5d0\uc11c \uc911\uc559 \uad6c\uba4d\uc744 \ud1b5\ud574 \ud750\ub985\ub2c8\ub2e4. \ubb3c\ub860 \uc774 \uc808\ucc28\uc5d0\uc11c\ub294 \uc815\ud655\ud55c \uae08\ud615 \uc628\ub3c4\ub97c \uc720\uc9c0\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1265\" title=\"\ub0c9\uac01-\uc2ac\ub80c\ub354-\ucf54\uc5b4\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Cooling-slender-cores.gif\" alt=\"\" width=\"410\" height=\"224\" \/><\/p>\n<h3>\uadf8\ub9bc 5. \uc2ac\ub9bc \ucf54\uc5b4\uc758 \uacf5\ub7ad\uc2dd \ub0c9\uac01<\/h3>\n<p>\uad6c\ub9ac \ub610\ub294 \ubca0\ub9b4\ub968-\uad6c\ub9ac \uc18c\uc7ac\uc640 \uac19\uc774 \uc5f4\uc804\ub3c4\uc728\uc774 \ub192\uc740 \uc18c\uc7ac\uc758 \uc778\uc11c\ud2b8\ub97c \uc0ac\uc6a9\ud558\uba74 \uc587\uc740 \ucf54\uc5b4(5mm \ubbf8\ub9cc\uc758 \ucf54\uc5b4)\ub97c \ub354 \ud6a8\uacfc\uc801\uc73c\ub85c \ub0c9\uac01\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae30\uc220\uc740 \uc544\ub798 \uadf8\ub9bc 6\uc5d0 \uc124\uba85\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc778\uc11c\ud2b8\ub294 \ucf54\uc5b4\uc5d0 \uc555\uc785\ub418\uace0 \uac00\ub2a5\ud55c \ud55c \ud070 \ub2e8\uba74\uc744 \uac00\uc9c4 \ubca0\uc774\uc2a4\uc640 \ud568\uaed8 \ub0c9\uac01 \ucc44\ub110\ub85c \ud655\uc7a5\ub429\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1266\" title=\"\uc2ac\ub9bc\ud615 \uacf5\ub7ad\uc2dd \uc5d0\uc5b4\ucee8\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Air-cooling-of-a-slender-co.gif\" alt=\"\" width=\"377\" height=\"223\" \/><\/p>\n<h3>\uadf8\ub9bc 6: \uc5f4 \uc804\ub3c4\uc131\uc774 \ub192\uc740 \uc18c\uc7ac\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc2ac\ub9bc\ud55c \ucf54\uc5b4\ub97c \ub0c9\uac01\ud558\ub294 \ubc29\ubc95<\/h3>\n<h1>\ub300\ud615 \ucf54\uc5b4 \ub0c9\uac01<\/h1>\n<p>\ucf54\uc5b4 \uc9c1\uacbd\uc774 \ud070 \uacbd\uc6b0(40mm \uc774\uc0c1) \uc808\uc0ad\uc720\uc758 \ud655\uc2e4\ud55c \uc774\uc1a1\uc774 \ubcf4\uc7a5\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \uadf8\ub9bc 7\uacfc \uac19\uc774 \uc808\uc0ad\uc720\uac00 \uc911\uc559 \ubcf4\uc5b4\ub97c \ud1b5\ud574 \ucf54\uc5b4\uc758 \ub05d\uc5d0 \ub3c4\ub2ec\ud55c \ud6c4 \ub098\uc120\ud615\uc73c\ub85c \uc6d0\uc8fc\uae4c\uc9c0, \uadf8\ub9ac\uace0 \ucf54\uc5b4\uc640 \uc778\uc11c\ud2b8 \uc0ac\uc774\ub97c \ub098\uc120\ud615\uc73c\ub85c \ubc30\ucd9c\uad6c\uae4c\uc9c0 \uc720\ub3c4\ud558\ub294 \uc778\uc11c\ud2b8\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc124\uacc4\ub294 \ucf54\uc5b4\ub97c \uc0c1\ub2f9\ud788 \uc57d\ud654\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1267\" title=\"\ub0c9\uac01-\ub300\ud615 \ucf54\uc5b4\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Cooling-large-cores.gif\" alt=\"\" width=\"394\" height=\"224\" \/><\/p>\n<h3>\uadf8\ub9bc 7. \ub300\ud615 \ucf54\uc5b4 \ub0c9\uac01\uc744 \uc704\ud55c \ud5ec\ub9ac\uceec \ubc30\ud50c \uc0ac\uc6a9<\/h3>\n<h1>\ub0c9\uac01 \uc2e4\ub9b0\ub354 \ucf54\uc5b4<\/h1>\n<p>\uc2e4\ub9b0\ub354 \ucf54\uc5b4 \ubc0f \uae30\ud0c0 \uc6d0\ud615 \ubd80\ud488\uc758 \ub0c9\uac01\uc740 \uc544\ub798 \uadf8\ub9bc\uacfc \uac19\uc774 \uc774\uc911 \ub098\uc120\uc73c\ub85c \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4. \ub0c9\uac01\uc218\ub294 \ud55c \ub098\uc120\uc758 \ucf54\uc5b4 \ud301\uc73c\ub85c \ud750\ub974\uace0 \ub2e4\ub978 \ub098\uc120\uc73c\ub85c \ub418\ub3cc\uc544\uac11\ub2c8\ub2e4. \uc124\uacc4\uc0c1\uc758 \uc774\uc720\ub85c \uc774 \uacbd\uc6b0 \ucf54\uc5b4\uc758 \ubcbd \ub450\uaed8\ub294 \ucd5c\uc18c 3mm \uc774\uc0c1\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1268\" title=\"\ub0c9\uac01 \uc2e4\ub9b0\ub354 \ucf54\uc5b4\" src=\"https:\/\/web.archive.org\/web\/20130131111118im_\/http:\/\/www.moldchina.org\/wp-content\/uploads\/2011\/10\/Cooling-cylinder-cores.gif\" alt=\"\" width=\"426\" height=\"201\" \/>\uadf8\ub9bc 8. \uc911\uc559 \ubc84\ube14\ub7ec\uac00 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