{"id":4895,"date":"2026-03-19T14:16:37","date_gmt":"2026-03-19T06:16:37","guid":{"rendered":"https:\/\/www.oc-epc.com\/?p=4895"},"modified":"2026-03-16T15:58:34","modified_gmt":"2026-03-16T07:58:34","slug":"%ec%86%90%ec%8b%a4-%eb%90%9c-%ea%b1%b0%ed%92%88-%ec%a3%bc%ec%a1%b0-%ed%94%84%eb%a1%9c%ec%84%b8%ec%8a%a4%ec%97%90%ec%84%9c-eps-%ec%82%ac%ec%a0%84-%ed%99%95%ec%9e%a5%ea%b8%b0-%ea%b8%b0%ea%b3%84%ea%b0%80","status":"publish","type":"post","link":"https:\/\/www.oc-epc.com\/ko\/news-blog\/industry-news\/how-does-an-eps-pre-expander-machine-work-in-the-lost-foam-casting-process\/","title":{"rendered":"\uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870 \uacfc\uc815\uc5d0\uc11c EPS \ud504\ub9ac \ud655\uc7a5\uae30 \uae30\uacc4\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud569\ub2c8\uae4c?"},"content":{"rendered":"<p><a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/ko\/product-category\/%ed%94%84%eb%a6%ac-%ed%8f%ac%eb%b0%8d-%eb%a8%b8%ec%8b%a0\/\"><strong>EPS Pre Expander \uae30\uacc4\ub294<\/strong><\/a> \uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.\uadf8\uac83\uc740 \ub728\uac70\uc6b4 \uae08\uc18d\uc774 \uc5f4\ub728\uac70\uc6b4 \uae08\uc18d\uc774 \uc5f4\uc5f4 \ub54c \uc0ac\ub77c\uc9c8 \ud328\ud134\uc744 \ud615\uc131\ud558\ub294 \ud655\uc7a5\ub41c \ud3f4\ub9ac\uc2a4\ud2f0\ub80c (EPS) \uad6c\uc11d\uc744 \uc900\ube44\ud569\ub2c8\ub2e4. \uc774 \ub2e8\uacc4\ub294 \uad6c\uc11d \uc131\uc7a5\uc5d0 \ub300\ud55c \uc2e0\uc911\ud55c \ud1b5\uc81c\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc870\uc815\ud55c \ubc00\ub3c4, \uac15\ud55c \ubaa8\uc591 \ubc0f \uacb0\ud568\uc5c6\uc774 \uae68\ub057\ud55c \uc8fc\uc870\ub97c \uc5bb\uae30 \uc704\ud574 \uad6c\uc11d \uc131\uc7a5\uc744 \uc870\uc2ec\uc2a4\ub7fd\uac8c \uc81c<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-4900\" src=\"http:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/Fully-automatic-pre-foaming-machineincluding-fluidized-drying-bed-1.webp\" alt=\"\uc644\uc804 \uc790\ub3d9 \ud504\ub9ac \ud3ec\ubc0d \uba38\uc2e0 (\uc720\uccb4 \uac74\uc870 \uce68\ub300 \ud3ec\ud568)\" width=\"1024\" height=\"576\" srcset=\"https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/Fully-automatic-pre-foaming-machineincluding-fluidized-drying-bed-1.webp 1024w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/Fully-automatic-pre-foaming-machineincluding-fluidized-drying-bed-1-300x169.webp 300w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/Fully-automatic-pre-foaming-machineincluding-fluidized-drying-bed-1-768x432.webp 768w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/Fully-automatic-pre-foaming-machineincluding-fluidized-drying-bed-1-18x10.webp 18w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/Fully-automatic-pre-foaming-machineincluding-fluidized-drying-bed-1-600x338.webp 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2 id=\"introduction-to-lost-foam-casting-and-the-role-of-eps-pre-expander-machine\"><strong>\uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870 \ubc0f EPS \ubbf8\ub9ac \ud655\uc7a5\uae30 \uae30\uacc4\uc758 \uc5ed\ud560\uc5d0 \ub300\ud55c \uc18c\uac1c<\/strong><\/h2>\n<p><a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/ko\/%ec%a0%9c%ed%92%88\/\"><strong>\uc783\uc5b4\ubc84\ub9b0 \uac70\ud488 \uce90\uc2a4\ud305<\/strong><\/a> \ub179\uc740 \uae08\uc18d\uc774 \uadf8\uac83\uc744 \ub9cc\uc9c0\uba74 \uc99d\uae30\ub85c \ubcc0\ud558\ub294 \uac70\ud488 \ud328\ud134\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uae08\uc18d\uc740 \ub4a4\uc5d0 \ub0a8\uc740 \ube48 \uacf5\uac04\uc744 \ucc44\uc6b0\uc2b5\ub2c8\ub2e4.\uc774 \ubc29\ubc95\uc740 \ubcf5\uc7a1\ud55c \ubaa8\uc591\uc5d0 \uc798 \uc791\ub3d9\ud569\ub2c8\ub2e4.\uadf8\uac83\uc740 \ucd94\uac00 \uac00\uacf5\uc744 \uc904\uc774\uace0 \uc77c\ubc18\uc801\uc778 \ubaa8\ub798 \uc8fc\uc870\ubcf4\ub2e4 \ub354 \uc801\uc740 \uc7ac\ub8cc\ub97c \ud3d0\uae30\ud569\ub2c8\ub2e4.<\/p>\n<p>EPS \ubbf8\ub9ac \ud655\uc7a5\uae30 \uae30\uacc4\ub294 \uc6d0\ub8cc \uad6c\uc2ac\uc744 \ucde8\ud558\uace0 \ud655\uc7a5\ud569\ub2c8\ub2e4.\uadf8\uac83\uc740 \uc548\uc815\uc801\uc778 \uc5f4\uacfc \uc555\ub825\uc744 \ud1b5\ud574 \ub0b4\ubd80 \uc548\uc548\uc548\uc548\ub0b4 \uc548\uc548\uc815\uc801\uc778 \uc548\uc548\ub0b4\uc5d0\uc11c \uc548\uc548\uc815\uc801\uc778 \uc5f4\uacfc \uc555\ub825\uc744 \ud1b5\ud574 \uc548\uc548\uc815\uc815\uc801\uc778 \uadf8\uac83\uc744 \ud65c\uc131\ud654\ud569\ub2c8\ub2e4.\uad6c\uc2ac\uc740 20~50\ubc30 \ub354 \ud06c\uac8c \uc131\uc7a5\ud569\ub2c8\ub2e4.\uadf8\ub4e4\uc740 \ud328\ud134\uc5d0 \uc644\ubcbd\ud55c \ud3d0\uc1c4 \uc138\ud3ec \uac70\ud488\uc744 \ud615\uc131\ud569\ub2c8\ub2e4.\uc190\uc2e4 \ub41c \uac70\ud488 \uc791\uc5c5\uc5d0\uc11c \ud655\uc7a5\ub41c \uad6c\uc2ac\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 20-30 kg\/m\u00b3\uc758 \ubc00\ub3c4\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4.\ub2ec\ubbf8\uc6b4 \uc810\uc740 \uc885\uc885 22-28 kg\/m\u00b3\uc5d0 \uc788\uc2b5\ub2c8\ub2e4.\uc774 \ubc94\uc704\ub294 \uae68\ub057\ud55c \ubd88\ud0c0\ub294 \uac83\uacfc \ud328\ud134 \uac15\ub3c4\ub97c \uade0\ud615\ud654\ud569\ub2c8\ub2e4.\uc2ec\uc9c0\uc5b4 \ud655\uc7a5\uc740 \ubaa8\uc591 \ubcc0\ud615, \uac00\ub09c\ud55c \uc811\ud569 \ub610\ub294 \ucd5c\uc885 \uc8fc\uc870\uc5d0\uc11c \uac00\uc2a4 \ud3ec\ucf13\uc744 \uc911\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"key-components-of-an-eps-pre-expander-machine\"><strong>EPS Pre Expander \uae30\uacc4\uc758 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c<\/strong><\/h2>\n<p>\ud604\ub300\uc801\uc778 EPS \uc804\uae30 \ud655\uc7a5\uae30 \uae30\uacc4\uc5d0\ub294 \ubc00\uc2e4\uc2e4\ub41c \ud655\uc7a5\uc2e4, \uc815\ud655\ud55c \uc555\ub825 (\ubcf4\ud1b5 4-8 \ubc14)\uc744 \uc704\ud55c \uc81c\uc5b4 \ud604\uc815\uc815\uc815\uae30 \ud604\ud604\uc815\ud655\ud55c \uc555\ub825 (\uc77c\ubc18\uc801\uc73c\ub85c 4-8 \ubc14) \ubc0f 98\u00b0C\uc5d0 \uac00\uae4c\uc6b4 \ubc30\ub7f4 \uc5f4\uc744 \uc720\uc9c0\ud558\uae30 \uc704\ud574 \uc804\uc790\uc790\uae30 \uac00\uc5f4\uc774 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.\uc774 \ud63c\ud569\uc740 \ubb3c\uac74\uc744 \uac74\uc870\ud558\uac8c \uc720\uc9c0\ud558\uace0 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \ud63c\ud569\uc740 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \uc774 \ud63c\ud569\uc740 \ubb3c\uac74\uc870<\/p>\n<p>\ud63c\ub3d9 \ud314\uc740 \uad6c\uc2ac\uc744 \uade0\ub4f1\ud558\uac8c \ud37c\ub728\ub9bd\ub2c8\ub2e4.\uc544\ub798 \ubc29\ucd9c\uc740 \uad6c\uc2ac\uc744 \ube60\ub974\uace0 \uc644\uc804\ud788 \ub098\ud0c0\ub0b4\uc5b4 \ud074\ub7fc\ud551\uc744 \ud53c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\ub098\uc911\uc5d0 \uacf5\uae30 \uac74\uc870 \uce68\ub300\ub97c \uc774\ub3d9\ud558\uace0 \ub098\uc05c \uc870\uac01\uc744 \uc81c\uac70\ud558\uae30 \uc704\ud574 \ub098\ub098\ub098\uc05c \uc2a4\ud06c\ub9b0\uc744 \ub098\ub098\ud0c0\ub0b4\uae30 \uc704\ud574 \ub098\ub098\ub098\uc911\uc5d0 \ub098\uc774\uac00 \ub4e0 \uc0ac\uc774\ub85c\ub97c \uc774\ub3d9\ud558\ub294 \ubd80\ubd84\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4.PLC \uc81c\uc5b4, \uc804\uc790 \uc2a4\ucf00\uc77c (\u00b11 \uadf8\ub7a8 \uc815\ud655), \uc6d0\uaca9 \uad00\ucc30\uc740 \uc644\uc804\ud55c \uc790\ub3d9 \uc2e4\ud589, \uc800\uc7a5 \ub41c \uc870\ub9ac\ubc95 \ubc0f \ucd94\uc801 \uac00\ub2a5\ud55c \ub2e8\uacc4\ub97c \ud5c8\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"how-does-an-eps-pre-expander-machine-work-step-by-step-process\"><strong>EPS Pre Expander \uae30\uacc4\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud569\ub2c8\uae4c?\ub2e8\uacc4\ubcc4 \ud504\ub85c\uc138\uc2a4<\/strong><\/h2>\n<p>EPS \ubbf8\ub9ac \ud655\uc7a5\uae30 \uae30\uacc4\ub294 \uc548\uc815\uc801\uc778 \uc790\ub3d9 \uc0ac\uc774\ud074\uc744 \ud1b5\ud574 \uc6d0\ub8cc \uad6c\uc2ac\uc744 \uc548\uc815\uc801\uc778 \ud655\uc7a5\ub41c \uac70\ud488\uc73c\ub85c \ubcc0\ud654\ud569\ub2c8\ub2e4.<\/p>\n<ol type=\"1\">\n<li>Raw Beads Loading Raw EPS beads with pentane load into the chamber by auto feed or accurate weighing. \uc790\ub3d9 \uacf5\uae09 \ub610\ub294 \uc815\ud655\ud55c \ubb34\uac8c\ub85c \uc6d0\uc6d0\uc6d0\ub8cc \uad6c\uc2ac \ub85c\ub529<\/li>\n<li>\uc0ac\uc804 \uac00\uc5f4 \ubc0f \uc555\ub825\ud654 \ubc29\uc740 \ub2eb\uc2b5\ub2c8\ub2e4.\uc800\uc555 \uc99d\uae30\ub294 \uad6c\uc2ac\uc744 \uc870\uac74\ud654\ud558\uae30 \uc2dc\uc791\ud569\ub2c8\ub2e4.\uadf8\ub7ec\uba74 \uc644\uc804\ud55c \uc555\ub825\uc774 \ub192\uc544\uc9d1\ub2c8\ub2e4.\uc804\uc790\uae30 \uc5f4\uc740 \uc628\ub3c4\ub97c \uc548\uc815\uc801\uc73c\ub85c \uc720\uc9c0\ud569\ub2c8\ub2e4.\uc774\uac83\uc740 \ubb3c \ucd95\uc801\uc744 \uc911\ub2e8\ud569\ub2c8\ub2e4.<\/li>\n<li>\ud655\uc7a5 \ub2e8\uacc4 \uc99d\uae30 (90-110\u00b0C)\ub294 \ud3f4\ub9ac\uc2a4\ud2f0\ub80c \ud655\ud3f4\ub9ac\uc2a4\ud2f0\ub80c \ud655\ud655\uc7a5 \ub2e8\uacc4 \uc99d\uae30 (90-110\u00b0C)\ub97c \ubd80\ub4dc\ub7fd\uac8c \ud569\ub2c8\ub2e4.\ud39c\ud0c4\uc740 \uc99d\uae30\ub85c \ubcc0\ud569\ub2c8\ub2e4.\uc774\uac83\uc740 \uad6c\uc2ac\uc744 \uc791\uc740 \uc138\ud3ec\ub85c \uc774\uc774\uc774\ub3d9\uc2dc\ud0a4\ub294 \ub0b4\ubd80 \uc555\ub825\uc744 \uad6c\ucd95\ud569\ub2c8\ub2e4.\ud63c\ud569\uc740 \uc131\uc7a5\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.\uc8fc\uae30 \uc2dc\uac04\uacfc \uc555\ub825\uc740 \ucd5c\uc885 \ubc00\ub3c4\ub97c \uc124\uc815\ud569\ub2c8\ub2e4. \ub354 \uae34 \ub610\ub294 \ub354 \uac15\ud55c \uc555\ub825\uc740 \ubc00\ub3c4\ub97c \ub0ae\ucd94\uac8c \ud569\ub2c8\ub2e4.<\/li>\n<li>\uc548\uc815\ud654 \ubc0f \ubc29\ucd9c \uc99d\uae30 \uc911\ub2e8.\uc555\ub825 \ud658\uae30.\ubc14\ub2e5 \ubc29\ucd9c\uc740 \uad6c\uc2ac\uc744 \ube60\ub974\uac8c \uc544\uc544\uc544\uc6c3\ub2c8\ub2e4.\uc555\ucd95 \uacf5\uae30\ub294 \uacfc\ub3c4\ud55c \uc131\uc7a5\uc744 \uc911\ub2e8\ud558\uae30 \uc704\ud574 \ubc29\uc744 \ub0c9\uac01\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc131\uc219 \uad6c\uc11d\uc740 \ub0c9\uac01\uc744 \uc704\ud574 \uacf5\uae30 \uce68\ub300 \ub610\ub294 \uc0ac\uc774\ub85c\ub85c \uac00\uace0 \uc138\ud3ec\uc5d0 \uacf5\uae30\ub97c \ucc44\uc6b0\uc2b5\ub2c8\ub2e4.\ub178\ud654 (\uc77c\ubc18\uc801\uc73c\ub85c 8-72\uc2dc\uac04, \uc885\uc885 24-48\uc2dc\uac04) \ud06c\uae30\uac00 \uc548\uc815\ub429\ub2c8\ub2e4.\uc2e0\uc120\ud55c \uad6c\uc2ac\uc740 \uc624\ub978\ucabd\uc73c\ub85c \ub098\uc774\uac00 \ub4e4\uc9c0 \uc54a\uc73c\uba74 \uc544\uc9c1\ub3c4 \uc870\uae08 \uc131\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.Shake \uc2a4\ud06c\ub9b0\uc740 \uacb0\ud568\uc744 \uc7a1\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ol>\n<p>PLC \uc2dc\uc2a4\ud15c\uc740 \ubaa8\ub4e0 \ub2e8\uacc4\ub97c \uc2e4\ud589\ud569\ub2c8\ub2e4.\uc81c\uc5b4 \uc81c\uc5b4 \uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc5b4 \ucee8\ud2b8\ub864 \uc81c\uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc81c\uc5b4 \uc81c\uc81c\uc81c\uc81c\uc5b4<\/p>\n<h2 id=\"process-parameters-and-density-control-in-eps-pre-expansion\"><strong>EPS Pre Expansion \ud504\ub85c\uc138\uc2a4 \ub9e4\uac1c \ubcc0\uc218 \ubc0f \ubc00\ub3c4 \uc81c\uc5b4<\/strong><\/h2>\n<p>\ubc00\ub3c4 \uc81c\uc5b4\ub294 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.\uadf8\uac83\uc740 \ud328\ud134 \uc190\uc190\uc2e4\ub41c \uac70\ud488 \uc8fc\uc870\uc5d0\uc11c \ud328\ud134 \ud328\ud134\ud328\ud134 \uac15\ub3c4, \ubd88\ud0c0\ub294 \uc18d\ub3c4 \ubc0f \uae08\uc18d \ud750\ub984\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.\ubaa9\ud45c \ubc00\ub3c4\ub294 \uac15\ud55c \ud328\ud134 (\uc0c1\uc138\ud55c \ubaa8\uc591\uc5d0 \ub300\ud574 \ub354 \ub192\uc740) \uacfc \uc26c\uc6b4 \uc99d\uae30 (\uc27d\uc740 \uc26c\uc6b4 \uc601\uc5ed\uc5d0 \ub300\ud574 \ub354 \ub0ae\uc740) \uc744 \uade0\ud615\ud654\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc8fc\uc694 \uc124\uc815\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\uc99d\uae30 \uc555\ub825 (4-8 bar) \ubc0f \uc2dc\uac04: \ub354 \ub192\uac70\ub098 \ub354 \uc624\ub798 \ubc00\ub3c4\ub97c \ub0ae\ucd94\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uc628\ub3c4 \uc720\uc9c0 (98-110\u00b0C): \ubd88\uade0\ud615\ud55c \uc131\uc7a5\uc744 \uc911\ub2e8\ud569\ub2c8\ub2e4.<\/li>\n<li>Bead \uccb4\ub958 \uc2dc\uac04: \uc6d0\ud558\ub294 \ud655\uc7a5 \ube44\uc728\uc5d0 \ub530\ub77c \uc870\uc815.<\/li>\n<li>\uc804\uc790 \ubb34\uac8c\ub294: \u00b11 \uadf8\ub7a8 \ucc28\uc774\ub85c \uc785\ub825\uc744 \uc815\ud655\ud558\uac8c \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc870\ucc28 \ubc00\ub3c4\ub294 \uc870\uac01\uc774\ub098 \uac70\ud488\uc744 \uc77c\uc73c\ud0a4\ub294 \uc57d\ud558\uac70\ub098 \uac15\ud55c \uc810\uc744 \uc911\ub2e8\ud569\ub2c8\ub2e4.\uace0\uae09 \uae30\uacc4\ub294 \uc6d0\ud615, \uc804\uccb4 \uad6c\uc2ac\ub85c 20-30 kg\/m\u00b3\ub97c \ubcf4\uc720\ud569\ub2c8\ub2e4.<img decoding=\"async\" class=\"aligncenter size-full wp-image-4899\" src=\"http:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/EPS-Pre-Expander-Machine-in-Lost-Foam-Casting-Process.webp\" alt=\"\uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870 \uacfc\uc815\uc5d0 \uc788\ub294 EPS Pre Expander \uae30\uacc4\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/EPS-Pre-Expander-Machine-in-Lost-Foam-Casting-Process.webp 1024w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/EPS-Pre-Expander-Machine-in-Lost-Foam-Casting-Process-300x225.webp 300w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/EPS-Pre-Expander-Machine-in-Lost-Foam-Casting-Process-768x576.webp 768w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/EPS-Pre-Expander-Machine-in-Lost-Foam-Casting-Process-16x12.webp 16w, https:\/\/www.oc-epc.com\/wp-content\/uploads\/2026\/03\/EPS-Pre-Expander-Machine-in-Lost-Foam-Casting-Process-600x450.webp 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2 id=\"importance-of-eps-pre-expander-machine-in-lost-foam-casting-process\"><strong>\uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870 \uacfc\uc815\uc5d0\uc11c EPS \ubbf8\ub9ac \ud655\uc7a5\uae30 \uae30\uacc4\uc758 \uc911\uc694\uc131<\/strong><\/h2>\n<p>\ud328\ud134 \ud488\uc9c8\uc740 \uce90\uc2a4\ud305 \uc131\uacf5\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4.\uc88b\uc740 \uc0ac\uc804 \ud655\uc7a5\uc740 \ubd80\ub4dc\ub7ec\uc6b4, \uae68\uc9c0\uc9c0 \uc54a\uc740 \uad6c\uc2ac\uc744 \ub9cc\ub4ed\ub2c8\ub2e4.\uadf8\ub4e4\uc740 \uae68\ub057\ud558\uac8c \ud615\uc131\ud558\uace0, \ucf54\ud305\uc744 \uc798 \uc720\uc9c0\ud558\uace0, \uac00\uc2a4 \uad6c\uba4d, \ub098\uc05c \ucc44\uc6b0\uac70\ub098 \uac00\uac00\uac00\uc2a4 \uad6c\ubd84\uc744 \ub0a8\uae30\uc9c0 \uc54a\uace0 \ubd88\ud0c0 \ubc84\ub9bd\ub2c8\ub2e4.<\/p>\n<p>\uc548\uc815\uc801\uc778 \ubc00\ub3c4\ub85c \uc790\ub3d9\ucc28 \ubd80\ud488, \uae30\uacc4 \ucf00\uc774\uc2a4 \ubc0f \ubcf5\uc7a1\ud55c \ubd80\ud488\uc758 \ub300\ub7c9 \uc81c\uc791\uc5d0\uc11c \uc88b\uc740 \uacb0\uacfc\ub97c \ubc18\ubcf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\ud3d0\uae30\ubb3c\uc744 \uc904\uc774\uace0 \uc5d0\ub108\uc9c0\ub97c \uc808\uc57d\ud558\uace0 \uc8fc\uc870 \uc0dd\uc0b0\ub7c9\uc744 \ub192\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n<h2 id=\"advantages-of-advanced-eps-pre-expander-machines\"><strong>\uace0\uae09 EPS Pre Expander \uae30\uacc4\uc758 \uc7a5\uc810<\/strong><\/h2>\n<p>\uc0c8\ub85c\uc6b4 EPS \ubbf8\ub9ac \ud655\uc7a5\uae30 \uae30\uacc4\ub294 \uac00\uc838\uc635\ub2c8\ub2e4:<\/p>\n<ul>\n<li>\ud734\uc2dd\uc5c6\uc774 \uc548\uc815\uc801\uc774\uace0 \ucd5c\uace0\uc758 \ube44\ub4dc \ud488\uc9c8\uc744 \uc704\ud55c \ud558\uc774\ube0c\ub9ac\ub4dc \uc804\uc790\uae30 \uc99d\uae30 \uac70\ud488.<\/li>\n<li>PLC, \ubca8\ube0c \ubc0f \uc6d0\uaca9 \uac80\uc0ac\ub97c \ud1b5\ud574 \uc815\ud655\ud55c \uc81c\uc5b4.<\/li>\n<li>\ubc18\ub300\ub85c \ud074\ub7fc\ud504 \ub514\uc790\uc778\uc744 \uac00\uc9c4 \ube60\ub978 \ubc14\ub2e5 \ubc29\uc804.<\/li>\n<li>EPS, \uacf5\uc911\ud569\uccb4 \ubc0f \ud2b9\uc218 \uc218\uc9c0\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/li>\n<li>\ub204\ucd9c\uacfc \uc804\ub825 \uc2e4\ud328 \ubcf4\ud638\uc640 \uac19\uc740 \ub0b4\uc7a5 \uc548\uc804.<\/li>\n<\/ul>\n<p>\uc774\ub7ec\ud55c \ud2b9\uc9d5\uc740 \uc0dd\uc0b0\ub7c9\uc744 \ub192\uc774\uace0 \ube44\uc6a9\uc744 \ub0ae\ucd94\uace0, \ud798\ub4e0 \uc190\uc2e4 \ub41c \uac70\ud488 \uc791\uc5c5\uc5d0 \ub300\ud55c \ud328\ud134 \uc2e0\ub8b0\ub97c \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"challenges-and-best-practices-in-eps-pre-expansion-for-lost-foam-casting\"><strong>\uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870\ub97c \uc704\ud55c EPS \uc0ac\uc804 \ud655\uc7a5\uc758 \ub3c4\uc804\uacfc \ucd5c\uace0\uc758 \uc0ac\ub840<\/strong><\/h2>\n<p>\ub3c4\uc804\uc740 \uad6c\uc11d\uc744 \uc870\uc815\ud558\uace0, \ud06c\uae30 \ubcc0\ud654\ub97c \ud53c\ud558\uae30 \uc704\ud574 \ub178\ud654\ub97c \uc81c\uc5b4\ud558\uace0, \ub2e4\ub978 \uae08\uc18d (\uc608: \uc54c\ub8e8\ubbf8\ub284\uacfc \ucca0) \uc5d0 \ub300\ud55c \uc124\uc815\uc744 \uc870\uc815\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.\ub108\ubb34 \ub9ce\uc740 \ud655\uc7a5\uc740 \ud328\ud134\uc744 \uc57d\ud654\uc2dc\ud0b5\ub2c8\ub2e4.\ub108\ubb34 \uc801\uc740 \uac83\uc740 \uac00\ub09c\ud55c \uac00\uc785\uc744 \ub9cc\ub4ed\ub2c8\ub2e4.<\/p>\n<p>\uac00\uc7a5 \uc88b\uc740 \ub2e8\uacc4\ub294 \uc815\uae30\uc801\uc778 \uaddc\ubaa8 \uac80\uc0ac, \uc99d\uae30 \ud488\uc9c8 \uc2dc\uacc4 \ubc0f \ud45c\uc900 \ub178\ud654 \uaddc\uce59 (\uc77c\ubc18\uc801\uc73c\ub85c 24-72\uc2dc\uac04)\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4.\ub370\uc774\ud130 \ub808\ucf54\ub4dc\ub294 \ud488\uc9c8\uc744 \ucd94\uc801\ud558\uace0 \uc720\uc9c0\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n<h2 id=\"integration-of-eps-pre-expansion-with-downstream-lost-foam-steps\"><strong>EPS Pre-Expansion \ubc0f Downstream Lost Foam \ub2e8\uacc4\uc758 \ud1b5\ud569<\/strong><\/h2>\n<p>\ud655\uc7a5\ub41c \uad6c\uc2ac\uc740 \uc131\ud615\uc73c\ub85c \uc774\ub3d9\ud569\ub2c8\ub2e4.\uadf8\ub4e4\uc740 \uc54c\ub8e8\ubbf8\ub284 \ub2e4\uc774\ub97c \ucc44\uc6b0\uace0 \ub354 \ub9ce\uc740 \uc99d\uae30\ub97c \uc5bb\uc5b4 \uace0\uccb4 \ud328\ud134\uc73c\ub85c \uacb0\ud569\ud569\ub2c8\ub2e4.\ud328\ud134\uc740 \ub0b4\ud654\uc131 \ucf54\ud2b8\ub97c \uc5bb\uace0, \ud074\ub7ec\uc2a4\ud130\ub85c \uadf8\ub8f9\ud654\ub418\uace0, \ud328\ud134\ud328\ud134\ud328\ud134\uc740 \ud328\ud134\uc5d0 \uc549\uc544\uc11c \ud328\ud134\uc740 \ud328\ud134\uc774 \ud328\ud134\ud328\ud134\uc5d0 \uc549\uc544\uc11c \ud328\ud328\ud328\ud134\uc740 \ud328\ud328\ud134\ud328\ud134\uc740 \ub0b4\ud654\uc131 \ucf54\ud2b8\ub97c \uc5bb\uace0, \ud074\ub7ec\uc2a4\ud130\ub85c\uc88b\uc740 \ubbf8\ub9ac \ud655\uc7a5\uc740 \uad6c\uc2ac \ud569\ub958 \uac15\ub3c4\ub97c \ubcf4\uc7a5\ud569\ub2c8\ub2e4.\uadf8\uac83\uc740 \uae08\uc18d \uc18d\ub3c4\uc640 \uacb0\ud568 \ud615\uc131\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc5f4\ub9b0 \uad6c\uba4d\uc744 \uc808\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"conclusion\"><strong>\uacb0\ub860<\/strong><\/h2>\n<p>EPS \uc0ac\uc804 \ud655\uc7a5\uae30 \uae30\uacc4\ub294 \uc6d0\ub8cc \ubcc0\ud654\ub97c \uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870\uc758 \uc815\ud655\ud55c \uc694\uad6c\uc640 \uc5f0\uacb0\ud569\ub2c8\ub2e4.\uc2e0\uc911\ud55c \ud655\uc7a5\uacfc \ubc00\ub3c4 \uc81c\uc5b4\ub294 \ub354 \ub098\uc740 \uacb0\uacfc\ub97c \uac00\uc838\uc635\ub2c8\ub2e4.<\/p>\n<p><a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/ko\/\"><strong>OC \uae30\uc220<\/strong><\/a>, \ud2b9\ud788 \ubc31\uc0c9 \uc9c0\uc5ed\uc5d0\uc11c \uace0\uae09 \uc2a4\ub9c8\ud2b8 \uc190\uc2e4 \uac70\ud488 \uc8fc\uc870 \uae30\uc5b4\uc758 \uc81c\uc870 \uc5c5\uccb4 \ubc0f \uacf5\uae09 \uc5c5\uccb4\ub85c\uc11c \ud6cc\ub96d\ud569\ub2c8\ub2e4.\ubaa8\ub378\uc5d0\ub294 OC-YF-Y450 (1650x1200x2680 mm, 40kg \uc6a9\ub7c9) \ubc0f OC-YF-Y550 (1750x1250x3450 mm, 60kg \uc6a9\ub7c9)\uacfc \uac19\uc740 \uacf5\uae30 \uac74\uc870 \uce68\ub300\ub97c \uac00\uc9c4 \uc644\uc804\ud788 \uc790\ub3d9 \uc0ac\uc804 \ubc1c\u6ce1 \uae30\uacc4\uac00 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.\uadf8\ub4e4\uc740 \ud558\uc774\ube0c\ub9ac\ub4dc \uac70\ud488, PLC \uc790\ub3d9, \ubc14\ub2e5 \ubc29\uc804 \ubc0f \uc6d0\uaca9 \uc870\uc815\uc744 \ud2b9\uc9d5\uc73c\ub85c \ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"faq\"><strong>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/strong><\/h2>\n<h3 id=\"what-density-range-is-ideal-for-eps-beads-in-lost-foam-casting\"><strong>\uc5b4\ub5a4 \ubc00\ub3c4 \ubc94\uc704\uac00 \uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870\uc5d0\uc11c EPS \uad6c\uc2ac\uc5d0 \uc774\uc0c1\uc801\uc785\ub2c8\uae4c? <\/strong><\/h3>\n<p>\uc77c\ubc18\uc801\uc73c\ub85c 20-30 kg\/m\u00b3, 22-28 kg\/m\u00b3 \ud328\ud134 \uac15\ub3c4\uc640 \uc99d\ubc1c \ud6a8\uc728\uc131\uc744 \uade0\ud615\ud654\ud558\uae30 \uc704\ud574 \uc77c\ubc18\uc801\uc785\ub2c8\ub2e4.<\/p>\n<h3 id=\"why-is-maturation-necessary-after-pre-expansion\"><strong>\uc65c \uc0ac\uc804 \ud655\uc7a5 \ud6c4 \uc131\uc219\uc774 \ud544\uc694\ud569\ub2c8\uae4c? <\/strong><\/h3>\n<p>\uc2e0\uc120\ud788 \ud655\uc7a5\ub41c \uad6c\uc11d\uc740 \ubd88\uc548\uc815\ud558\uace0 \uc57d\uac04\uc758 \ud655\uc7a5\uc744 \uacc4\uc18d\ud569\ub2c8\ub2e4.\uc131\uc219\uc740 \uacf5\uae30 \ud655\uc0b0\uacfc \ucc28\uc6d0 \uc548\uc815\uc744 \ud5c8\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h3 id=\"how-does-steam-pressure-affect-bead-density\"><strong>\uc99d\uae30 \uc555\ub825\uc740 \uad6c\uc2ac \ubc00\ub3c4\uc5d0 \uc5b4\ub5bb\uac8c \uc601\ud5a5\uc744 \ubbf8\uce58\ub098\uc694? <\/strong><\/h3>\n<p>\ub354 \ub192\uc740 \uc555\ub825\uc774\ub098 \ub354 \uae34 \ub178\ucd9c\uc740 \ud655\uc7a5\uc744 \uc99d\uac00\uc2dc\ud0a4\uba74\uc11c \ubc00\ub3c4\ub97c \uc904\uc785\ub2c8\ub2e4.<\/p>\n<h3 id=\"what-causes-dead-beads-in-pre-expansion\"><strong>\uc6d0\uc778\uc740 &#8220;\uc8fd\uc740 \uad6c\ub450&#8221;\uc0ac\uc804 \ud655\uc7a5? <\/strong><\/h3>\n<p>\uacfc\ub3c4\ud55c \uc2b5\ub3c4 \ub610\ub294 \ubd88\uade0\ud615\ud55c \uac00\uc5f4;\ud558\uc774\ube0c\ub9ac\ub4dc \uc804\uc790\uae30 \uc99d\uae30 \ubc29\ubc95\uc740 \uc774\uac83\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n<h3 id=\"how-accurate-is-density-control-in-advanced-machines\"><strong>\uace0\uae09 \uae30\uacc4\uc5d0\uc11c \ubc00\ub3c4 \uc81c\uc5b4\ub294 \uc5bc\ub9c8\ub098 \uc815\ud655\ud569\ub2c8\uae4c? <\/strong><\/h3>\n<p>\uc804\uc790 \ubb34\uac8c\ub294 \u00b11 \uadf8\ub7a8 \uc774\ub0b4\uc758 \ud3b8\ucc28\ub97c \ub2ec\uc131\ud558\uc5ec \ub192\uc740 \ubc18\ubcf5\uc131\uc744 \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"partner-with-a-trusted-manufacturer-and-supplier-for-lost-foam-casting-equipment\"><strong>\uc190\uc2e4 \ub41c \uac70\ud488 \uc8fc\uc870 \uc7a5\ube44\uc758 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc81c\uc870 \uc5c5\uccb4 \ubc0f \uacf5\uae09 \uc5c5\uccb4\uc640 \ud30c\ud2b8\ub108<\/strong><\/h2>\n<p>\uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 EPS \uc0ac\uc804 \ud655\uc7a5\uae30 \uae30\uacc4\ub97c \ucc3e\ub294 \uc8fc\uc870 \uc81c\uc870\uc5c5\uccb4, \uc8fc\uc870 \uc6b4\uc601\uc790 \ubc0f \uc7a5\ube44 \uacf5\uae09 \uc5c5\uccb4\ub294 OC Technology\uc5d0 \uc5f0\ub77d\ud574\uc57c\ud569\ub2c8\ub2e4.\uc190\uc2e4 \ub41c \uac70\ud488 \uc194\ub8e8\uc158\uc744 \uc804\ubb38\uc73c\ub85c \ud558\ub294 \uc804\uc6a9 \uacf5\uc7a5\uc73c\ub85c\uc11c OC Technology\ub294 \ud6a8\uc728\uc131\uacfc \ud488\uc9c8\uc744 \uc704\ud574 \ub9de\ucda4\ud615 \uc815\ubc00 \uc0ac\uc804 \uac70\ud488 \uc7a5\ube44\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. <a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/ko\/%ec%97%b0%eb%9d%bd%ec%b2%98\/\"><strong>\ubb38\uc758\ud558\uae30<\/strong><\/a> via Tel: +86 15988479417 or Email: <a style=\"text-decoration: underline;\" href=\"mailto:zyh@oc-epc.com\">zyh@oc-epc.com<\/a> \uae30\uc220 \uc0c1\ub2f4, \uc0ac\uc6a9\uc790 \uc815\uc758 \uad6c\uc131 \ub610\ub294 \uc0dd\uc0b0 \ub77c\uc778 \ucd5c\uc801\ud654\ub97c \uc704\ud574.<\/p>","protected":false},"excerpt":{"rendered":"<p>The EPS Pre Expander Machine plays a central role in lost foam casting. It prepares expanded polystyrene (EPS) beads that form the patterns which disappear when hot metal pours in. This step requires careful control over bead growth to get even density, strong shapes, and clean castings without flaws. Introduction to Lost Foam Casting and [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4902,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[160,161],"tags":[],"class_list":["post-4895","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news","category-news-blog"],"acf":[],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/posts\/4895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/comments?post=4895"}],"version-history":[{"count":3,"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/posts\/4895\/revisions"}],"predecessor-version":[{"id":4906,"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/posts\/4895\/revisions\/4906"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/media\/4902"}],"wp:attachment":[{"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/media?parent=4895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/categories?post=4895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oc-epc.com\/ko\/wp-json\/wp\/v2\/tags?post=4895"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}