{"id":2860,"date":"2026-08-07T10:41:59","date_gmt":"2026-08-07T02:41:59","guid":{"rendered":"http:\/\/0"},"modified":"2026-08-04T17:52:24","modified_gmt":"2026-08-04T09:52:24","slug":"why-co-injection-molding-lowers-material-packaging-costs","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/vi\/blog\/why-co-injection-molding-lowers-material-packaging-costs\/","title":{"rendered":"T\u1ea1i sao \u0110\u00fac \u00c9p \u0110\u1ed3ng Th\u1eddi Gi\u00fap Gi\u1ea3m Chi Ph\u00ed Bao B\u00ec V\u1eadt Li\u1ec7u"},"content":{"rendered":"<article style=\"font-family: -apple-system, BlinkMacSystemFont, &#039;Segoe UI&#039;, Roboto, Helvetica, Arial, sans-serif;color: #333333;width: 100%\">\n<section style=\"margin-bottom: 30px\">\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">S\u1ea3n xu\u1ea5t v\u1ecf k\u1ebft c\u1ea5u ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 ph\u1ea7n c\u1ee9ng nh\u1ef1a \u0111a ch\u1ee9c n\u0103ng \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa t\u00ednh th\u1ea9m m\u1ef9 b\u1ec1 m\u1eb7t ho\u00e0n h\u1ea3o v\u1edbi chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4 th\u1ea5p. C\u00e1c linh ki\u1ec7n \u0111\u01a1n v\u1eadt li\u1ec7u r\u1eafn s\u1eed d\u1ee5ng nh\u1ef1a k\u1ef9 thu\u1eadt nguy\u00ean sinh l\u00e0m t\u0103ng chi ph\u00ed s\u1ea3n xu\u1ea5t, trong khi s\u1eed d\u1ee5ng 100% polyme t\u00e1i ch\u1ebf l\u00e0m gi\u1ea3m t\u00ednh th\u1ea9m m\u1ef9 b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp. Ch\u1ec9 \u0111\u1ecbnh chuy\u00ean nghi\u1ec7p <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/service\/custom-mold-making\/\"><strong>\u0111\u00fac \u00e9p \u0111\u1ed3ng phun<\/strong><\/a> gi\u1ea3i quy\u1ebft c\u00e1c y\u00eau c\u1ea7u xung \u0111\u1ed9t n\u00e0y b\u1eb1ng c\u00e1ch bao b\u1ecdc l\u00f5i polyme chi ph\u00ed th\u1ea5p ho\u1eb7c t\u00e1i ch\u1ebf b\u00ean trong l\u1edbp v\u1ecf ngo\u00e0i nguy\u00ean sinh c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao. JUCHENG v\u1eadn h\u00e0nh m\u00e1y m\u00f3c \u0111\u1ed3ng phun \u0111a th\u00f9ng chuy\u00ean d\u1ee5ng, cung c\u1ea5p c\u00e1c b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u nhi\u1ec1u l\u1edbp ho\u00e0n to\u00e0n theo b\u1ea3n v\u1ebd CAD k\u1ef9 thu\u1eadt c\u1ee7a kh\u00e1ch h\u00e0ng.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2863\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels.webp\" alt=\"co-injection-molding-machine-barrels\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<\/section>\n<p><!-- Table of Contents --><\/p>\n<section style=\"background-color: #f8f9fa;border-left: 4px solid #0056b3;padding: 24px;border-radius: 6px;margin: 40px 0\">\n<h3 style=\"font-size: 22px;font-weight: bold;line-height: 1.5em;margin-top: 0;margin-bottom: 16px;color: #111111\">M\u1ee5c l\u1ee5c<\/h3>\n<ul style=\"list-style-type: none;padding-left: 0;margin: 0\">\n<li style=\"margin-bottom: 12px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#sandwich-molding\">1. \u0110\u00fac Sandwich: V\u1ecf Ngo\u00e0i Nguy\u00ean Sinh v\u1edbi L\u00f5i T\u00e1i Ch\u1ebf\/Nghi\u1ec1n L\u1ea1i<\/a><\/li>\n<li style=\"margin-bottom: 12px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#viscosity-matching\">2. \u0110\u1ed9 B\u00e1m D\u00ednh Gi\u1eefa C\u00e1c L\u1edbp V\u1eadt Li\u1ec7u &amp; Ph\u00f9 H\u1ee3p \u0110\u1ed9 Nh\u1edbt trong Phun K\u00e9p<\/a><\/li>\n<li style=\"margin-bottom: 0\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#emi-shielded\">3. T\u1ea5m K\u1ebft C\u1ea5u Ti\u1ebft Ki\u1ec7m Chi Ph\u00ed &amp; V\u1ecf Ch\u1ed1ng Nhi\u1ec5u EMI<\/a><\/li>\n<\/ul>\n<\/section>\n<p><!-- Section 1 --><\/p>\n<section id=\"sandwich-molding\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">\u0110\u00fac Sandwich: V\u1ecf Ngo\u00e0i Nguy\u00ean Sinh v\u1edbi L\u00f5i T\u00e1i Ch\u1ebf\/Nghi\u1ec1n L\u1ea1i<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2865\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle.webp\" alt=\"dual-concentric-injection-nozzle\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Th\u1ef1c hi\u1ec7n x\u1eed l\u00fd nhi\u1ec1u l\u1edbp s\u1eed d\u1ee5ng <strong>c\u00f4ng ngh\u1ec7 \u0111\u00fac sandwich<\/strong> th\u00f4ng qua v\u00f2i phun \u0111\u1ed3ng t\u00e2m k\u00e9p chuy\u00ean d\u1ee5ng ho\u1eb7c van \u1ed1ng g\u00f3p tu\u1ea7n t\u1ef1. Phun giai \u0111o\u1ea1n \u0111\u1ea7u \u0111\u01b0a nh\u1ef1a v\u1ecf nguy\u00ean sinh v\u00e0o, l\u1ea5p \u0111\u1ea7y th\u00e0nh khoang \u0111\u1ec3 t\u1ea1o b\u1ec1 m\u1eb7t ngo\u00e0i nguy\u00ean s\u01a1. Phun giai \u0111o\u1ea1n hai \u0111\u01b0a v\u1eadt li\u1ec7u l\u00f5i tr\u1ef1c ti\u1ebfp v\u00e0o trung t\u00e2m \u1ea5m c\u1ee7a nh\u1ef1a v\u1ecf, m\u1edf r\u1ed9ng l\u00f5i t\u1eeb b\u00ean trong. Bao b\u1ecdc m\u1ed9t <strong>l\u00f5i nghi\u1ec1n l\u1ea1i<\/strong> ho\u1eb7c polyme t\u00e1i ch\u1ebf b\u00ean trong v\u1ecf nguy\u00ean sinh gi\u1ea3m chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4 t\u1edbi 30% \u0111\u1ebfn 50% m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n. Phun x\u1ea3 v\u1ecf cu\u1ed1i c\u00f9ng b\u1ecbt k\u00edn c\u1ed5ng sprue b\u1eb1ng nh\u1ef1a nguy\u00ean sinh, \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf n\u00e0o l\u1ed9 ra tr\u00ean b\u1ec1 m\u1eb7t b\u00ean ngo\u00e0i.<\/p>\n<p><!-- Numbered List --><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 16px\">C\u00e1c b\u01b0\u1edbc tr\u00ecnh t\u1ef1 \u0111\u00fac sandwich \u0111\u1ed3ng phun bao g\u1ed3m:<\/p>\n<ol style=\"font-size: 18px;line-height: 1.8em;margin-bottom: 24px;padding-left: 24px;list-style-type: decimal\">\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Phun v\u1ecf nguy\u00ean sinh<\/strong>\u2014Vi\u1ec7c b\u01a1m nh\u1ef1a l\u1edbp v\u1ecf ngo\u00e0i c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao t\u1ea1o ra l\u1edbp b\u1ec1 m\u1eb7t ho\u00e0n h\u1ea3o ti\u1ebfp x\u00fac v\u1edbi th\u00e0nh khu\u00f4n l\u1ea1nh.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>D\u1ecbch chuy\u1ec3n nh\u1ef1a n\u00f3ng ch\u1ea3y l\u00f5i<\/strong>\u2014Vi\u1ec7c b\u01a1m nh\u1ef1a l\u00f5i qua \u1ed1ng g\u00f3p trung t\u00e2m m\u1edf r\u1ed9ng l\u1edbp k\u1eb9p m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>X\u1ea3 s\u1ea1ch nh\u1ef1a v\u1ecf t\u1ea1i c\u1ed5ng phun<\/strong>\u2014Vi\u1ec7c b\u01a1m m\u1ed9t l\u1ea7n phun cu\u1ed1i ng\u1eafn b\u1eb1ng nh\u1ef1a v\u1ecf nguy\u00ean ch\u1ea5t s\u1ebd b\u1ecbt k\u00edn c\u1ed5ng phun, ng\u0103n ng\u1eeba l\u1ed9 l\u00f5i.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>N\u00e9n \u00e1p su\u1ea5t trong l\u00f2ng khu\u00f4n<\/strong>\u2014Duy tr\u00ec \u00e1p su\u1ea5t n\u00e9n \u0111\u1ea3m b\u1ea3o m\u1eadt \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 ng\u0103n ng\u1eeba h\u00ecnh th\u00e0nh v\u1ebft l\u00f5m.<\/li>\n<\/ol>\n<\/section>\n<p><!-- Section 2 --><\/p>\n<section id=\"viscosity-matching\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">\u0110\u1ed9 b\u00e1m d\u00ednh gi\u1eefa c\u00e1c l\u1edbp v\u1eadt li\u1ec7u &amp; Ph\u00f9 h\u1ee3p \u0111\u1ed9 nh\u1edbt trong phun k\u00e9p<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2864\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer.webp\" alt=\"co-injection-polymer-boundary-layer\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c l\u1edbp k\u1eb9p \u1ed5n \u0111\u1ecbnh c\u1ea7n c\u00f3 s\u1ef1 <strong>ph\u00f9 h\u1ee3p \u0111\u1ed9 nh\u1edbt<\/strong> ch\u00ednh x\u00e1c gi\u1eefa d\u00f2ng nh\u1ef1a n\u00f3ng ch\u1ea3y l\u1edbp v\u1ecf v\u00e0 l\u1edbp l\u00f5i. Ch\u00eanh l\u1ec7ch \u0111\u1ed9 nh\u1edbt n\u00f3ng ch\u1ea3y v\u01b0\u1ee3t qu\u00e1 20% khi\u1ebfn v\u1eadt li\u1ec7u l\u00f5i xuy\u00ean qua l\u1edbp v\u1ecf, d\u1eabn \u0111\u1ebfn <strong>xuy\u00ean th\u1ee7ng l\u1edbp v\u1ecf<\/strong>. Xuy\u00ean th\u1ee7ng l\u1edbp v\u1ecf l\u00e0m l\u1ed9 v\u1eadt li\u1ec7u l\u00f5i b\u00ean trong tr\u00ean b\u1ec1 m\u1eb7t chi ti\u1ebft, g\u00e2y lo\u1ea1i b\u1ecf do l\u1ed7i ngo\u1ea1i quan. Vi\u1ec7c ch\u1ecdn c\u00e1c nh\u1ef1a nhi\u1ec7t d\u1ebbo t\u01b0\u01a1ng th\u00edch nh\u01b0 <strong>PC\/ABS<\/strong> ho\u1eb7c <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/polypropylene-pp\/\"><strong>polypropylene (PP)<\/strong><\/a> \u0111\u1ea3m b\u1ea3o li\u00ean k\u1ebft h\u00f3a h\u1ecdc b\u1ec1n v\u1eefng d\u1ecdc theo ranh gi\u1edbi gi\u1eefa c\u00e1c l\u1edbp. Vi\u1ec7c thi\u1ebft l\u1eadp nhi\u1ec7t \u0111\u1ed9 ph\u00f9 h\u1ee3p duy tr\u00ec c\u00e1c m\u1eb7t tr\u01b0\u1edbc d\u00f2ng ch\u1ea3y l\u01b0u bi\u1ebfn t\u01b0\u01a1ng t\u1ef1, gi\u1eef l\u00f5i \u0111\u1ed3ng t\u00e2m b\u00ean trong l\u1edbp v\u1ecf ngo\u00e0i.<\/p>\n<p><!-- Table 1: Co-Injection Material Pairs Table --><\/p>\n<div style=\"margin: 32px 0\">\n<table style=\"width: 100%;border-collapse: collapse;font-size: 16px;text-align: left;min-width: 600px\">\n<thead>\n<tr style=\"background-color: #f8f9fa;border-bottom: 2px solid #dee2e6\">\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">V\u1eadt li\u1ec7u l\u1edbp v\u1ecf ngo\u00e0i<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">V\u1eadt li\u1ec7u l\u00f5i \u0111\u01b0\u1ee3c bao b\u1ecdc<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">M\u1ee5c ti\u00eau t\u1ef7 l\u1ec7 \u0111\u1ed9 nh\u1edbt<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">T\u1ef7 l\u1ec7 th\u1ec3 t\u00edch l\u00f5i (%)<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">L\u1ee3i \u00edch ch\u1ee9c n\u0103ng ch\u00ednh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PC\/ABS nguy\u00ean sinh (Bayblend)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PC\/ABS t\u00e1i ch\u1ebf + s\u1ee3i carbon<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.0 : 1.1<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">35% \u2013 45%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Che ch\u1eafn EMI\/RFI t\u00edch h\u1ee3p &amp; chi ph\u00ed nh\u1ef1a th\u1ea5p h\u01a1n<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PP nguy\u00ean sinh (SABIC PP 570P)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PP t\u00e1i ch\u1ebf sau ti\u00eau d\u00f9ng<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.0 : 1.05<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">40% \u2013 50%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">T\u1ea5m k\u1ebft c\u1ea5u &amp; pallet b\u1ec1n v\u1eefng<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">ABS nguy\u00ean sinh (Polylac PA-757)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">ABS nghi\u1ec1n l\u1ea1i \u0111\u1ed9n n\u1eb7ng<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.0 : 1.15<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">30% \u2013 40%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">V\u1ecf thi\u1ebft b\u1ecb d\u00e0y v\u1edbi \u0111\u1ed9 c\u1ee9ng cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<p><!-- Section 3 --><\/p>\n<section id=\"emi-shielded\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">T\u1ea5m k\u1ebft c\u1ea5u ti\u1ebft ki\u1ec7m chi ph\u00ed &amp; v\u1ecf b\u1ecdc ch\u1ed1ng nhi\u1ec5u EMI<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2866\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure.webp\" alt=\"emi-shielded-plastic-enclosure\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">X\u1eed l\u00fd \u0111\u1ed3ng phun cho ph\u00e9p k\u1ebft h\u1ee3p v\u1eadt li\u1ec7u ch\u1ee9c n\u0103ng \u0111\u1ed9c \u0111\u00e1o m\u00e0 kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c v\u1edbi \u00e9p phun m\u1ed9t l\u1ea7n. V\u1ecf \u0111i\u1ec7n t\u1eed k\u1ebft h\u1ee3p m\u1ed9t <strong>l\u00f5i d\u1eabn \u0111i\u1ec7n ch\u1ee9a carbon<\/strong> b\u00ean trong l\u1edbp v\u1ecf ngo\u00e0i PC\/ABS th\u1ea9m m\u1ef9, cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u EMI\/RFI t\u00edch h\u1ee3p m\u00e0 kh\u00f4ng c\u1ea7n s\u01a1n d\u1eabn \u0111i\u1ec7n th\u1ee9 c\u1ea5p. Pallet v\u1eadn chuy\u1ec3n c\u00f4ng nghi\u1ec7p v\u00e0 t\u1ea5m k\u1ebft c\u1ea5u bao b\u1ecdc nh\u1ef1a t\u00e1i ch\u1ebf sau ti\u00eau d\u00f9ng chi ph\u00ed th\u1ea5p b\u00ean trong l\u1edbp v\u1ecf ngo\u00e0i PP nguy\u00ean sinh ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft. Bao b\u1ecdc \u0111a l\u1edbp \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau ch\u00ed b\u1ec1n v\u1eefng m\u00f4i tr\u01b0\u1eddng nghi\u00eam ng\u1eb7t \u0111\u1ed3ng th\u1eddi gi\u1ea3m t\u1ed5ng chi ph\u00ed s\u1ea3n xu\u1ea5t chi ti\u1ebft.<\/p>\n<p><!-- Bulleted List --><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 16px\">C\u00e1c l\u1ee3i th\u1ebf ch\u00ednh c\u1ee7a \u0111\u1ed3ng phun trong ng\u00e0nh bao g\u1ed3m:<\/p>\n<ul style=\"list-style-type: disc;padding-left: 24px;font-size: 18px;line-height: 1.8em;margin-bottom: 24px\">\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Gi\u1ea3m chi ph\u00ed nguy\u00ean li\u1ec7u th\u00f4<\/strong>\u2014Bao b\u1ecdc t\u1ed1i \u0111a 50% v\u1eadt li\u1ec7u l\u00f5i t\u00e1i ch\u1ebf ho\u1eb7c nghi\u1ec1n l\u1ea1i gi\u00fap gi\u1ea3m t\u1ed5ng chi ph\u00ed nh\u1ef1a.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Che ch\u1eafn d\u1eabn \u0111i\u1ec7n t\u00edch h\u1ee3p<\/strong>\u2014Bao b\u1ecdc l\u00f5i carbon \u0111en d\u1eabn \u0111i\u1ec7n mang l\u1ea1i kh\u1ea3 n\u0103ng suy gi\u1ea3m EMI n\u1ed9i b\u1ed9 m\u00e0 kh\u00f4ng c\u1ea7n s\u01a1n th\u1ee9 c\u1ea5p.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Ngo\u1ea1i quan b\u1ec1 m\u1eb7t nguy\u00ean s\u01a1<\/strong>\u2014Che gi\u1ea5u nh\u1ef1a l\u00f5i b\u1ecb \u0111\u1ed5i m\u00e0u ho\u1eb7c ch\u1ee9a nhi\u1ec1u ch\u1ea5t \u0111\u1ed9n ph\u00eda sau l\u1edbp da nguy\u00ean sinh duy tr\u00ec ti\u00eau chu\u1ea9n th\u1ea9m m\u1ef9 h\u1ea1ng A.<\/li>\n<\/ul>\n<\/section>\n<p><!-- FAQ Section --><\/p>\n<section id=\"faq\" style=\"margin-bottom: 40px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2861\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness.webp\" alt=\"measuring-sandwich-skin-thickness\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<div style=\"margin-bottom: 30px\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa \u00e9p phun \u0111\u1ed3ng phun v\u00e0 \u00e9p phun hai l\u1ea7n (2K) l\u00e0 g\u00ec?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">\u00c9p phun \u0111\u1ed3ng phun phun hai d\u00f2ng v\u1eadt li\u1ec7u kh\u00e1c nhau \u0111\u1ed3ng th\u1eddi ho\u1eb7c tu\u1ea7n t\u1ef1 qua m\u1ed9t c\u1ed5ng duy nh\u1ea5t \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac b\u00e1nh sandwich \u0111a l\u1edbp (da v\u00e0 l\u00f5i). \u00c9p phun hai l\u1ea7n phun hai v\u1eadt li\u1ec7u v\u00e0o c\u00e1c ph\u1ea7n ri\u00eang bi\u1ec7t c\u1ee7a chi ti\u1ebft b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng t\u1ea5m khu\u00f4n quay.<\/p>\n<\/div>\n<div style=\"margin-bottom: 30px\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">C\u00f3 th\u1ec3 bao b\u1ecdc bao nhi\u00eau v\u1eadt li\u1ec7u t\u00e1i ch\u1ebf b\u00ean trong l\u00f5i \u0111\u1ed3ng phun?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Core ratios typically account for 30% to 50% of total part weight depending on geometry and wall thickness. Maintaining a minimum outer skin thickness of 1.0 mm to 1.5 mm prevents core breakthrough and preserves surface strength.<\/p>\n<\/div>\n<div style=\"margin-bottom: 0\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">How do you prevent core breakthrough in sandwich molding?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Preventing core breakthrough requires matching the melt viscosity of skin and core polymers within a 15% range. Controlling initial skin shot volume and injection speed ensures a uniform boundary layer before core resin enters.<\/p>\n<\/div>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Manufacturing cost-effective structural enclosures and multi-functional plastic hardware requires balancing pristine surface aesthetics with low raw material expenses. Solid single-material components using virgin engineering resins drive up production costs, whereas using 100% recycled polymers compromises surface cosmetics and impact strength. Specifying professional co injection molding resolves these conflicting requirements by encapsulating a low-cost or recycled [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2862,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2860","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/2860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/comments?post=2860"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/2860\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/2862"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/categories?post=2860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/tags?post=2860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}