{"id":593,"date":"2018-10-17T00:12:11","date_gmt":"2018-10-16T16:12:11","guid":{"rendered":"https:\/\/plasticmoldco.com\/?p=593"},"modified":"2018-10-17T00:12:11","modified_gmt":"2018-10-16T16:12:11","slug":"chapter-26-1shrinkage-and-warpage","status":"publish","type":"post","link":"https:\/\/www.plasticmoldco.com\/ko\/2018\/10\/17\/26\uc7a5-1\uc218\ucd95-\ubc0f-\ub4a4\ud2c0\ub9bc\/","title":{"rendered":"26-1\uc7a5, \uc218\ucd95 \ubc0f \ub4a4\ud2c0\ub9bc"},"content":{"rendered":"

\uc65c \uc774\ub7f0 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud558\ub098\uc694?<\/h2>\n

\uc218\ucd95\uc740 \uc0ac\ucd9c \uc131\ud615 \uacf5\uc815\uc5d0 \ub0b4\uc7ac\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc218\ucd95\uc774 \ubc1c\uc0dd\ud558\ub294 \uc774\uc720\ub294
\n\ud3f4\ub9ac\uba38\uc758 \ubc00\ub3c4\ub294 \ucc98\ub9ac \uc628\ub3c4\uc5d0 \ub530\ub77c \uc8fc\ubcc0 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.
\n(\ud2b9\uc815 \uccb4\uc801(pvT \ub2e4\uc774\uc5b4\uadf8\ub7a8) \ucc38\uc870). \uc0ac\ucd9c \uc131\ud615 \uc2dc \ubd80\ud488\uc758 \uc804\uccb4 \ubc0f \ub2e8\uba74\uc744 \ud1b5\ud55c \uc218\ucd95\uc758 \ubcc0\ud654\ub294 \ub0b4\ubd80 \uc751\ub825\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc18c\uc704 \uc794\ub958 \uc751\ub825(\uc794\ub958 \uc751\ub825 \ucc38\uc870)\uc740 \uc678\ubd80\uc5d0\uc11c \uac00\ud574\uc9c4 \uc751\ub825\uacfc \uc720\uc0ac\ud55c \ud6a8\uacfc\ub85c \ubd80\ud488\uc5d0 \uc791\uc6a9\ud569\ub2c8\ub2e4. \uc131\ud615 \uc911\uc5d0 \uc720\ub3c4\ub41c \uc794\ub958 \uc751\ub825\uc774 \ub192\uc740 \uacbd\uc6b0
\n\ubd80\ud488\uc758 \uad6c\uc870\uc801 \ubb34\uacb0\uc131\uc744 \uadf9\ubcf5\ud560 \uc218 \uc5c6\uc744 \uc815\ub3c4\ub85c \ucda9\ubd84\ud788 \ud718\uc5b4\uc9c0\uba74 \ubd80\ud488\uc744 \ubc30\ucd9c\ud560 \ub54c \ud718\uc5b4\uc9d1\ub2c8\ub2e4.
\n\uc678\ubd80 \uc11c\ube44\uc2a4 \ud558\uc911\uc73c\ub85c \uc778\ud55c \uacf0\ud321\uc774 \ub610\ub294 \uade0\uc5f4\ub85c\ubd80\ud130 \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/p>\n

\uc218\ucd95<\/h2>\n

\uc131\ud615 \ud50c\ub77c\uc2a4\ud2f1 \ubd80\ud488\uc758 \uc218\ucd95\uc740 \uac00\uacf5 \uc628\ub3c4\uc640 \uc8fc\ubcc0 \uc628\ub3c4\uc5d0\uc11c \uce21\uc815\ud560 \ub54c \ubd80\ud53c \uae30\uc900\uc73c\ub85c \ucd5c\ub300 20%\uae4c\uc9c0 \uc904\uc5b4\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacb0\uc815\uc131 \ubc0f \ubc18\uacb0\uc815\uc131 \uc18c\uc7ac\ub294 \ud2b9\ud788 \uc5f4 \uc218\ucd95\uc774 \ubc1c\uc0dd\ud558\uae30 \uc27d\uace0, \ube44\uc815\uc9c8 \uc18c\uc7ac\ub294 \uc218\ucd95\uc774 \ub35c \ubc1c\uc0dd\ud558\ub294 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uacb0\uc815\uc9c8 \uc7ac\ub8cc\uac00 \uc804\uc774 \uc628\ub3c4 \uc774\ud558\ub85c \ub0c9\uac01\ub418\uba74 \ubd84\uc790\uac00 \ubcf4\ub2e4 \uc9c8\uc11c\uc815\uc5f0\ud558\uac8c \ubc30\uc5f4\ub418\uc5b4 \uacb0\uc815\uccb4\ub97c \ud615\uc131\ud569\ub2c8\ub2e4. \ubc18\uba74 \ube44\uc815\uc9c8 \ubb3c\uc9c8\uc758 \ubbf8\uc138 \uad6c\uc870\ub294 \uc0c1 \ubcc0\ud654\uc5d0 \ub530\ub77c \ubcc0\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ucc28\uc774\ub85c \uc778\ud574 \uacb0\uc815\uc131 \ubc0f \ubc18\uacb0\uc815\uc131 \ubb3c\uc9c8\uc740 \uc6a9\uc735\uc0c1\uacfc \uace0\uccb4(\uacb0\uc815\uc131) \uc0c1 \uc0ac\uc774\uc758 \ube44\ubd80\ud53c \ucc28\uc774( )\uac00 \ub354 \ucee4\uc9d1\ub2c8\ub2e4. \uc774\ub294 \uc544\ub798 \uadf8\ub9bc 1\uc5d0 \uc124\uba85\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \ub0c9\uac01 \uc18d\ub3c4\ub294 \uacb0\uc815\uc131 \ubc0f \ubc18\uacb0\uc815\uc131 \uc7ac\ub8cc\uc758 \ube60\ub978 \ub0c9\uac01 pvT \uac70\ub3d9\uc5d0\ub3c4 \uc601\ud5a5\uc744 \ubbf8\uce5c\ub2e4\ub294 \uc810\uc744 \uc9c0\uc801\ud558\uace0 \uc2f6\uc2b5\ub2c8\ub2e4.<\/p>\n

\"\uc218\ucd95<\/p>\n

\uadf8\ub9bc 1.<\/strong>\u00a0\ube44\uc815\uc9c8 \ubc0f \uacb0\uc815\uc9c8 \ud3f4\ub9ac\uba38\uc758 pvT \uace1\uc120\uacfc \uac00\uacf5 \uc0c1\ud0dc(\uc810 A)\uc640 \uc2e4\uc628 \ubc0f \ub300\uae30\uc555 \uc0c1\ud0dc(\uc810 B) \uc0ac\uc774\uc758 \ube44\ubd80\ud53c \ubcc0\ud654\uc785\ub2c8\ub2e4. \uc555\ub825\uc774 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ube44\ubd80\ud53c\uac00 \uac10\uc18c\ud55c\ub2e4\ub294 \uc810\uc5d0 \uc720\uc758\ud558\uc138\uc694.<\/p>\n

\uacfc\ub3c4\ud55c \ubd80\ud488 \uc218\ucd95\uc758 \uc6d0\uc778<\/h3>\n

\ud5c8\uc6a9 \uc218\uc900\uc744 \ucd08\uacfc\ud558\ub294 \uacfc\ub3c4\ud55c \uc218\ucd95\uc740 \ub2e4\uc74c \uc694\uc778\uc73c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc218\ucd95\uacfc \uc5ec\ub7ec \ucc98\ub9ac \ub9e4\uac1c\ubcc0\uc218 \ubc0f \ubd80\ud488 \ub450\uaed8\uc758 \uad00\uacc4\ub294 \uadf8\ub9bc 2\uc5d0 \uac1c\ub7b5\uc801\uc73c\ub85c \ud45c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

- \ub0ae\uc740 \uc0ac\ucd9c \uc555\ub825
\n- \uc9e7\uc740 \ud329 \uc720\uc9c0 \uc2dc\uac04 \ub610\ub294 \ub0c9\uac01 \uc2dc\uac04
\n- \ub192\uc740 \uc6a9\uc735 \uc628\ub3c4
\n- \ub192\uc740 \uae08\ud615 \uc628\ub3c4
\n- \ub0ae\uc740 \uc720\uc9c0 \uc555\ub825.<\/p>\n

\ubd80\ud488 \uc218\ucd95\uc73c\ub85c \uc778\ud55c \ubb38\uc81c<\/h3>\n

\ubcf4\uc815\ub418\uc9c0 \uc54a\uc740 \uccb4\uc801 \uc218\ucd95\uc740 \ubab0\ub529 \ub0b4\ubd80\uc5d0 \uc2f1\ud06c \ub9c8\ud06c \ub610\ub294 \uacf5\uadf9\uc73c\ub85c \uc774\uc5b4\uc9d1\ub2c8\ub2e4. \ubd80\ud488 \uc218\ucd95\uc744 \uc81c\uc5b4\ud558\ub294 \uac83\uc740 \ubd80\ud488, \uae08\ud615 \ubc0f \uacf5\uc815 \uc124\uacc4\uc5d0\uc11c \uc911\uc694\ud558\uba70, \ud2b9\ud788 \uc5c4\uaca9\ud55c \uacf5\ucc28\uac00 \ud544\uc694\ud55c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c\ub294 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4. \uc2f1\ud06c \ub9c8\ud06c\ub098 \uacf5\uadf9\uc73c\ub85c \uc774\uc5b4\uc9c0\ub294 \uc218\ucd95\uc740 \ucda9\uc9c4 \ud6c4 \uce90\ube44\ud2f0\ub97c \ud328\ud0b9\ud558\uc5ec \uc904\uc774\uac70\ub098 \uc81c\uac70\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c \ubd80\ud488 \uce58\uc218\ub97c \uc900\uc218\ud558\uae30 \uc704\ud574 \uae08\ud615 \uc124\uacc4 \uc2dc \uc218\ucd95\uc744 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4. C-MOLD\uc5d0\uc11c \uc608\uce21\ud55c \ubd80\ud488 \uc218\ucd95\uc740 \uc801\uc808\ud55c \uae08\ud615 \uc124\uacc4\ub97c \uc704\ud55c \uc720\uc6a9\ud55c \uac00\uc774\ub4dc\ub77c\uc778\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"

\uc65c \uc774\ub7f0 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\ub098\uc694? \uc218\ucd95\uc740 \uc0ac\ucd9c \uc131\ud615 \uacf5\uc815\uc5d0 \ub0b4\uc7ac\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc218\ucd95\uc740 \ud3f4\ub9ac\uba38\uc758 \ubc00\ub3c4\uac00 \uac00\uacf5 \uc628\ub3c4\uc5d0 \ub530\ub77c \uc8fc\ubcc0 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c0\uae30 \ub54c\ubb38\uc5d0 \ubc1c\uc0dd\ud569\ub2c8\ub2e4(\ube44\uccb4\uc801(pvT \ub2e4\uc774\uc5b4\uadf8\ub7a8) \ucc38\uc870). \uc0ac\ucd9c \uc131\ud615 \uc911\uc5d0 \ubd80\ud488\uc758 \uc804\uccb4 \ubc0f \ub2e8\uba74\uc744 \ud1b5\ud55c \uc218\ucd95\uc758 \ubcc0\ud654\ub294 \ub0b4\ubd80 \uc751\ub825\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc18c\uc704 [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[15],"tags":[],"class_list":["post-593","post","type-post","status-publish","format-standard","hentry","category-mould-technology-blog-1"],"yoast_head":"\nChapter 26-1,Shrinkage and warpage - Plastic Mold | China Mold Maker<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.plasticmoldco.com\/ko\/2018\/10\/17\/\u0627\u0644\u0641\u0635\u0644-26-1\u0627\u0644\u0627\u0646\u0643\u0645\u0627\u0634-\u0648\u0627\u0644\u0627\u0644\u062a\u0648\u0627\u0621\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chapter 26-1,Shrinkage and warpage - Plastic Mold | China Mold Maker\" \/>\n<meta property=\"og:description\" content=\"Why do they occur? Shrinkage is inherent in the injection molding process. Shrinkage occurs because the density of polymer varies from the processing temperature to the ambient temperature (see Specific volume (pvT diagram)). During injection molding, the variation in shrinkage both globally and through the cross section of a part creates internal stresses. 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