{"id":3142,"date":"2026-08-20T16:11:34","date_gmt":"2026-08-20T08:11:34","guid":{"rendered":"http:\/\/0"},"modified":"2026-08-18T17:29:38","modified_gmt":"2026-08-18T09:29:38","slug":"insert-overmolding-services-for-metal-and-electronic-substrates","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/vi\/blog\/insert-overmolding-services-for-metal-and-electronic-substrates\/","title":{"rendered":"D\u1ecbch v\u1ee5 \u00e9p ph\u1ee7 ch\u00e8n cho n\u1ec1n kim lo\u1ea1i v\u00e0 \u0111i\u1ec7n t\u1eed"},"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\">Vi\u1ec7c \u0111\u1ec3 l\u1ed9 c\u1ea3m bi\u1ebfn \u0111i\u1ec7n t\u1eed, thanh c\u00e1i pin cao \u00e1p v\u00e0 c\u1ee5m c\u00e1p ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t l\u1ecfng \u00f4 t\u00f4 kh\u1eafc nghi\u1ec7t v\u00e0 \u0111\u1ed9 \u1ea9m m\u00f4i tr\u01b0\u1eddng s\u1ebd \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh h\u1ecfng do \u0103n m\u00f2n. C\u00e1c h\u1ee3p ch\u1ea5t \u0111\u1ed5 k\u00edn truy\u1ec1n th\u1ed1ng v\u00e0 gio\u0103ng silicone th\u1ee9 c\u1ea5p b\u1ecb n\u1ee9t d\u01b0\u1edbi rung \u0111\u1ed9ng c\u01a1 h\u1ecdc li\u00ean t\u1ee5c, cho ph\u00e9p ch\u1ea5t l\u1ecfng \u0111i\u1ec7n ph\u00e2n l\u00e0m ng\u1eafn m\u1ea1ch c\u00e1c k\u1ebft n\u1ed1i b\u00ean trong. Vi\u1ec7c bao k\u00edn c\u00e1c ti\u1ebfp \u0111i\u1ec3m kim lo\u1ea1i v\u00e0 b\u1ea3ng m\u1ea1ch in tr\u1ef1c ti\u1ebfp trong nh\u1ef1a nhi\u1ec7t d\u1ebbo k\u1ef9 thu\u1eadt t\u1ea1o ra m\u1ed9t r\u00e0o ch\u1eafn nguy\u00ean kh\u1ed1i ng\u0103n ch\u1eb7n s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a m\u00f4i tr\u01b0\u1eddng.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3149\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/environmental-salt-spray-corrosion-testing.webp\" alt=\"environmental-salt-spray-corrosion-testing\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/environmental-salt-spray-corrosion-testing.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/environmental-salt-spray-corrosion-testing-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/environmental-salt-spray-corrosion-testing-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/environmental-salt-spray-corrosion-testing-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/environmental-salt-spray-corrosion-testing-18x10.webp 18w\" 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 li\u00ean k\u1ebft b\u1ec1n v\u1eefng gi\u1eefa c\u00e1c v\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00e2n b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t kim lo\u1ea1i v\u1edbi nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y c\u1ee7a polymer. H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt n\u00e0y kh\u00e1m ph\u00e1 thi\u1ebft k\u1ebf ch\u1eb7n m\u00ea cung, b\u00f9 gi\u00e3n n\u1edf nhi\u1ec7t vi sai v\u00e0 ti\u00eau chu\u1ea9n c\u00e1ch \u0111i\u1ec7n cao \u00e1p.<\/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: 10px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#ip67-sealing\">1. \u0110\u00fac k\u00edn ch\u1ed1ng n\u01b0\u1edbc IP67 cho c\u1ea3m bi\u1ebfn v\u00e0 linh ki\u1ec7n \u0111i\u1ec7n<\/a><\/li>\n<li style=\"margin-bottom: 10px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#overmolding-plastics\">2. \u0110\u00fac ph\u1ee7 nh\u1ef1a l\u00ean chi ti\u1ebft ch\u00e8n kim lo\u1ea1i v\u00e0 c\u1ee5m l\u1eafp r\u00e1p ph\u1ee5<\/a><\/li>\n<li style=\"margin-bottom: 10px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#overcoming-cte\">3. Kh\u1eafc ph\u1ee5c \u1ee9ng su\u1ea5t gi\u00e3n n\u1edf nhi\u1ec7t vi sai (CTE)<\/a><\/li>\n<li style=\"margin-bottom: 10px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#why-jucheng\">4. T\u1ea1i sao ch\u1ecdn JUCHENG cho \u0111\u00fac ph\u1ee7 chi ti\u1ebft ch\u00e8n ph\u1ee9c t\u1ea1p<\/a><\/li>\n<li style=\"margin-bottom: 0\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#faq\">5. C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQs)<\/a><\/li>\n<\/ul>\n<\/section>\n<p><!-- Section 1 (\u524d\u90e8\uff1a\u76ee\u6807\u8bcd\u9996\u6b21\u51fa\u73b0\u5e76\u52a0\u7c97) --><\/p>\n<section id=\"ip67-sealing\" 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 k\u00edn ch\u1ed1ng n\u01b0\u1edbc IP67 cho c\u1ea3m bi\u1ebfn v\u00e0 linh ki\u1ec7n \u0111i\u1ec7n<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3145\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/labyrinth-seal-groove-overmolding-design.webp\" alt=\"labyrinth-seal-groove-overmolding-design\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/labyrinth-seal-groove-overmolding-design.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/labyrinth-seal-groove-overmolding-design-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/labyrinth-seal-groove-overmolding-design-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/labyrinth-seal-groove-overmolding-design-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/labyrinth-seal-groove-overmolding-design-18x10.webp 18w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">B\u1ea3o v\u1ec7 c\u00e1c linh ki\u1ec7n b\u00ean trong mong manh kh\u1ecfi \u0111\u1ed9 \u1ea9m, n\u01b0\u1edbc mu\u1ed1i \u0111\u01b0\u1eddng ph\u1ed1 v\u00e0 r\u1eeda \u00e1p l\u1ef1c \u0111\u1ed9ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng x\u00e2m nh\u1eadp m\u1ea1nh m\u1ebd. \u0110\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 k\u00edn IP67 ho\u1eb7c IP69K trong khi ng\u0103n ch\u1eb7n s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh <strong>\u0111\u00fac ph\u1ee7 chi ti\u1ebft ch\u00e8n<\/strong> \u0111\u00f2i h\u1ecfi t\u1ea1o ra c\u00e1c <strong>b\u1ec1 m\u1eb7t l\u00e0m k\u00edn k\u00edn kh\u00ed<\/strong>. li\u1ec1n m\u1ea1ch. Polymer n\u00f3ng ch\u1ea3y ph\u1ea3i ch\u1ea3y s\u00e1t quanh c\u00e1c bi\u00ean d\u1ea1ng kim lo\u1ea1i, lo\u1ea1i b\u1ecf c\u00e1c khe h\u1edf si\u00eau nh\u1ecf \u0111\u00f3ng vai tr\u00f2 \u0111\u01b0\u1eddng d\u1eabn mao d\u1eabn cho \u0111\u1ed9 \u1ea9m x\u00e2m nh\u1eadp. Thi\u1ebft k\u1ebf c\u00e1c g\u1edd m\u00ea cung n\u1ed5i d\u1ecdc theo ranh gi\u1edbi kim lo\u1ea1i-nh\u1ef1a gi\u00fap k\u00e9o d\u00e0i kho\u1ea3ng c\u00e1ch ph\u00f3ng \u0111i\u1ec7n v\u1eadt l\u00fd, ng\u0103n ng\u1eeba h\u1ed3 quang \u0111i\u1ec7n cao \u00e1p.<\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">B\u1ea3ng 1 d\u01b0\u1edbi \u0111\u00e2y so s\u00e1nh c\u00e1c c\u01a1 ch\u1ebf l\u00e0m k\u00edn v\u00e0 x\u1ebfp h\u1ea1ng m\u00f4i tr\u01b0\u1eddng gi\u1eefa c\u00e1c c\u1ea5u h\u00ecnh \u0111\u00fac k\u00edn chi ti\u1ebft ch\u00e8n ph\u1ed5 bi\u1ebfn:<\/p>\n<p><!-- Table 1: Sealing &amp; Ingress Protection 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\">Ki\u1ebfn tr\u00fac \u0111\u00fac k\u00edn<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Kim lo\u1ea1i n\u1ec1n ch\u00ednh<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Polymer \u0111\u00fac ph\u1ee7<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">C\u1ea5p b\u1ea3o v\u1ec7 x\u00e2m nh\u1eadp<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu m\u00f4i tr\u01b0\u1eddng 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\">Th\u00e2n c\u1ea3m bi\u1ebfn k\u00edn ki\u1ec3u m\u00ea cung<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ch\u00e2n c\u1eafm \u0111\u1ed3ng thau m\u1ea1 v\u00e0ng<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PBT \/ PA66-GF30<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ng\u00e2m trong n\u01b0\u1edbc IP67 \/ IP68<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ch\u1ed1ng d\u1ea7u truy\u1ec1n \u0111\u1ed9ng &amp; d\u1ea7u phanh<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Thanh c\u00e1i EV cao \u00e1p<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u51b2\u538b\u94dc\u6761\uff08C11000\uff09<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PA66 m\u00e0u cam (UL94 V-0)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">R\u1eeda \u00e1p su\u1ea5t cao IP69K<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ng\u0103n \u0111\u00e1nh th\u1ee7ng \u0111i\u1ec7n m\u00f4i 800V<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">B\u00f3 d\u00e2y gi\u1eafc c\u1eafm c\u00f4ng nghi\u1ec7p<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ti\u1ebfp \u0111i\u1ec3m th\u00e9p m\u1ea1 niken<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Santoprene TPV \/ TPU<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">IP67 Ch\u1ed1ng b\u1ee5i &amp; \u1ea9m<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Ch\u1ed1ng l\u1ea1i vi\u1ec7c r\u1eeda b\u1eb1ng h\u00f3a ch\u1ea5t &amp; ph\u01a1i nhi\u1ec5m UV<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<p><!-- Section 2 (\u4e2d\u90e8\uff1a\u76ee\u6807\u8bcd\u4e0d\u52a0\u7c97) --><\/p>\n<section id=\"overmolding-plastics\" 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 ph\u1ee7 nh\u1ef1a l\u00ean c\u00e1c mi\u1ebfng ch\u00e8n kim lo\u1ea1i v\u00e0 c\u1ee5m l\u1eafp r\u00e1p ph\u1ee5<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3148\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/encapsulated-wire-harness-connector-pins.webp\" alt=\"encapsulated-wire-harness-connector-pins\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/encapsulated-wire-harness-connector-pins.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/encapsulated-wire-harness-connector-pins-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/encapsulated-wire-harness-connector-pins-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/encapsulated-wire-harness-connector-pins-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/encapsulated-wire-harness-connector-pins-18x10.webp 18w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">C\u00e1c c\u1ee5m l\u1eafp r\u00e1p k\u1ef9 thu\u1eadt ph\u1ee9c t\u1ea1p k\u1ebft h\u1ee3p c\u00e1c chi ti\u1ebft \u0111\u00e3 \u0111\u01b0\u1ee3c gia c\u00f4ng tr\u01b0\u1edbc <strong>bu l\u00f4ng ren b\u1eb1ng \u0111\u1ed3ng thau<\/strong>, <strong>thanh c\u00e1i b\u1eb1ng \u0111\u1ed3ng<\/strong>, v\u00e0 c\u00e1c b\u00f3 d\u00e2y \u0111i\u1ec7n linh ho\u1ea1t v\u00e0o m\u1ed9t v\u1ecf nh\u1ef1a th\u1ed1ng nh\u1ea5t. Nh\u1eefng th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt ch\u00ednh trong \u0111\u00fac ph\u1ee7 mi\u1ebfng ch\u00e8n t\u1eadp trung v\u00e0o vi\u1ec7c ng\u0103n ch\u1eb7n s\u1ef1 d\u1ecbch chuy\u1ec3n c\u1ee7a mi\u1ebfng ch\u00e8n d\u01b0\u1edbi \u00e1p su\u1ea5t phun th\u1ee7y \u0111\u1ed9ng l\u1ef1c h\u1ecdc m\u1ea1nh m\u1ebd. C\u00e1c lo\u1ea1i nh\u1ef1a k\u1ebft c\u1ea5u nh\u01b0 <strong>PA66-GF30<\/strong> ho\u1eb7c <strong>polycarbonate (PC)<\/strong> mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee9ng cao, trong khi c\u00e1c h\u1ee3p ch\u1ea5t \u0111\u00e0n h\u1ed3i nh\u01b0 <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/thermoplastic-vulcanizate-tpv\/\"><strong>Santoprene TPV<\/strong><\/a> cung c\u1ea5p l\u1edbp \u0111\u1ec7m b\u00ean ngo\u00e0i. T\u1ef1 \u0111\u1ed9ng h\u00f3a b\u1eb1ng robot n\u1ea1p c\u00e1c c\u1ee5m l\u1eafp r\u00e1p ph\u1ee5 kim lo\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o h\u00ecnh tr\u01b0\u1edbc v\u00e0o c\u00e1c \u1ed5 ch\u1ee9a khoang l\u00f5i v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb d\u01b0\u1edbi m\u1ed9t milim\u00e9t tr\u01b0\u1edbc m\u1ed7i chu k\u1ef3 k\u1eb9p.<\/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 trong quy tr\u00ecnh \u0111\u00f3ng g\u00f3i kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t 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>N\u1ea1p mi\u1ebfng ch\u00e8n kim lo\u1ea1i t\u1ef1 \u0111\u1ed9ng<\/strong>\u2014S\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 g\u1eafn \u1edf \u0111\u1ea7u c\u00e1nh tay robot \u0111\u1ec3 \u0111\u1eb7t c\u00e1c ti\u1ebfp \u0111i\u1ec3m kim lo\u1ea1i m\u1ed9t c\u00e1ch ch\u1eafc ch\u1eafn l\u00ean c\u00e1c ch\u1ed1t \u0111\u1ecbnh v\u1ecb l\u00f5i.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>L\u00e0m n\u00f3ng s\u01a1 b\u1ed9 c\u00e1c t\u1ea5m n\u1ec1n kim lo\u1ea1i<\/strong>\u2014L\u00e0m \u1ea5m c\u00e1c mi\u1ebfng ch\u00e8n kim lo\u1ea1i \u0111\u1ebfn 100\u00b0C gi\u00fap gi\u1ea3m gradient nhi\u1ec7t trong qu\u00e1 tr\u00ecnh ti\u1ebfp x\u00fac v\u1edbi polymer.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>L\u00e0m \u0111\u1ea7y \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng v\u1eadn t\u1ed1c<\/strong>\u2014Vi\u1ec7c phun nh\u1ef1a d\u01b0\u1edbi s\u1ef1 \u0111i\u1ec1u khi\u1ec3n v\u1eadn t\u1ed1c v\u00f2ng k\u00edn gi\u00fap l\u1ea5p \u0111\u1ea7y c\u00e1c khoang h\u1eb9p m\u00e0 kh\u00f4ng l\u00e0m x\u00ea d\u1ecbch c\u00e1c chi ti\u1ebft ch\u00e8n.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>N\u00e9n \u00e1p su\u1ea5t cao<\/strong>\u2014Duy tr\u00ec \u00e1p su\u1ea5t n\u00e9n \u0111\u1ea3m b\u1ea3o polymer co l\u1ea1i ch\u1eb7t quanh c\u00e1c kh\u00eda kim lo\u1ea1i.<\/li>\n<\/ol>\n<\/section>\n<p><!-- Section 3 (\u4e2d\u540e\u90e8\uff1a\u76ee\u6807\u8bcd\u4e0d\u52a0\u7c97) --><\/p>\n<section id=\"overcoming-cte\" 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\">Kh\u1eafc ph\u1ee5c \u1ee9ng su\u1ea5t do gi\u00e3n n\u1edf nhi\u1ec7t kh\u00e1c bi\u1ec7t (CTE)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3146\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/sem-micrograph-polymer-metal-interface.webp\" alt=\"sem-micrograph-polymer-metal-interface\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/sem-micrograph-polymer-metal-interface.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/sem-micrograph-polymer-metal-interface-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/sem-micrograph-polymer-metal-interface-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/sem-micrograph-polymer-metal-interface-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/sem-micrograph-polymer-metal-interface-18x10.webp 18w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Qu\u1ea3n l\u00fd s\u1ef1 <strong>kh\u00f4ng t\u01b0\u01a1ng th\u00edch CTE<\/strong> gi\u1eefa kim lo\u1ea1i c\u1ee9ng v\u00e0 polymer bao quanh gi\u00fap ng\u0103n ng\u1eeba n\u1ee9t do \u1ee9ng su\u1ea5t sau khi \u0111\u00fac. \u0110\u1ed3ng v\u00e0 \u0111\u1ed3ng thau gi\u00e3n n\u1edf \u1edf m\u1ee9c 16,5 \u0111\u1ebfn 18,5 ppm\/K, trong khi nh\u1ef1a k\u1ef9 thu\u1eadt kh\u00f4ng \u0111\u1ed9n gi\u00e3n n\u1edf \u1edf m\u1ee9c 60 \u0111\u1ebfn 100 ppm\/K khi gia nhi\u1ec7t. Trong qu\u00e1 tr\u00ecnh <strong>th\u1eed nghi\u1ec7m s\u1ed1c nhi\u1ec7t<\/strong> k\u00e9o d\u00e0i t\u1eeb -40\u00b0C \u0111\u1ebfn 125\u00b0C, s\u1ef1 ch\u00eanh l\u1ec7ch gi\u00e3n n\u1edf nhi\u1ec7t t\u1ea1o ra \u1ee9ng su\u1ea5t v\u00f2ng k\u00e9o nghi\u00eam tr\u1ecdng b\u00ean trong th\u00e0nh tr\u1ee5 nh\u1ef1a.<\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Th\u1ef1c hi\u1ec7n th\u00e0nh c\u00f4ng vi\u1ec7c \u0111\u00fac ph\u1ee7 chi ti\u1ebft ch\u00e8n ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c c\u00f4ng th\u1ee9c nh\u1ef1a c\u00f3 \u0111\u1ed9 gi\u00e3n d\u00e0i cao, c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i m\u00e0 kh\u00f4ng b\u1ecb n\u1ee9t. Vi\u1ec7c th\u00eam s\u1ee3i th\u1ee7y tinh v\u00e0o n\u1ec1n nh\u1ef1a l\u00e0m gi\u1ea3m CTE c\u1ee7a polymer, \u0111\u01b0a n\u00f3 g\u1ea7n nh\u01b0 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi t\u1ed1c \u0111\u1ed9 gi\u00e3n n\u1edf c\u1ee7a kim lo\u1ea1i.<\/p>\n<\/section>\n<p><!-- Section 4 (\u540e\u90e8\uff1a\u76ee\u6807\u8bcd\u4e0d\u52a0\u7c97\uff0c\u603b\u7ed3\u4e0e\u5de5\u5382\u5b9e\u529b) --><\/p>\n<section id=\"why-jucheng\" 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\u1ea1i sao ch\u1ecdn JUCHENG cho vi\u1ec7c \u0111\u00fac ph\u1ee7 chi ti\u1ebft ch\u00e8n ph\u1ee9c t\u1ea1p<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3144\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-automated-molding-press-floor.webp\" alt=\"jucheng-automated-molding-press-floor\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-automated-molding-press-floor.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-automated-molding-press-floor-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-automated-molding-press-floor-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-automated-molding-press-floor-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-automated-molding-press-floor-18x10.webp 18w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">H\u1ee3p t\u00e1c v\u1edbi JUCHENG cho c\u00e1c d\u1ef1 \u00e1n bao b\u1ecdc kim lo\u1ea1i-nh\u1ef1a mang l\u1ea1i quy\u1ec1n truy c\u1eadp v\u00e0o m\u1ed9t x\u01b0\u1edfng s\u1ea3n xu\u1ea5t r\u1ed9ng l\u1edbn \u0111\u01b0\u1ee3c trang b\u1ecb h\u01a1n 35 m\u00e1y \u00e9p phun t\u1ef1 \u0111\u1ed9ng v\u1edbi l\u1ef1c k\u1eb9p t\u1eeb 15T \u0111\u1ebfn 3000T. Vi\u1ec7c v\u1eadn h\u00e0nh x\u01b0\u1edfng d\u1ee5ng c\u1ee5 n\u1ed9i b\u1ed9 v\u1edbi 25 b\u1ed9 m\u00e1y CNC 5 tr\u1ee5c cho ph\u00e9p gia c\u00f4ng ch\u00ednh x\u00e1c c\u00e1c b\u1ec1 m\u1eb7t th\u00e9p ch\u1eb7n k\u00edn t\u1eeb th\u00e9p t\u00f4i c\u1ee9ng <strong>S136\u4e0d\u9508\u94a2<\/strong> ho\u1eb7c <strong>H13\u5de5\u5177\u94a2<\/strong>. K\u1ebft h\u1ee3p c\u00e1c chi ti\u1ebft ch\u00e8n kim lo\u1ea1i v\u1edbi c\u00e1c l\u1edbp cao su th\u00f4ng qua \u0111\u00fac ph\u1ee7 chi ti\u1ebft ch\u00e8n b\u1ed5 sung cho <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/service\/overmolding-services\/\"><strong>\u00e9p ph\u1ee7 khu\u00f4n t\u00f9y ch\u1ec9nh<\/strong><\/a> n\u0103ng l\u1ef1c c\u1ed1t l\u00f5i c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Quality management systems certified to IATF 16949 and ISO 13485 back every multi-shot production run, offering full PPAP Level 3 documentation for automotive programs. Operating an ISO Class 8 cleanroom molding department protects medical components from particulate contamination during molding and drop-packaging.<\/p>\n<\/section>\n<p><!-- FAQ Section (Module 5: 6 FAQs) --><\/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-3147\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/torque-pull-testing-overmolded-terminal.webp\" alt=\"torque-pull-testing-overmolded-terminal\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/torque-pull-testing-overmolded-terminal.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/torque-pull-testing-overmolded-terminal-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/torque-pull-testing-overmolded-terminal-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/torque-pull-testing-overmolded-terminal-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/torque-pull-testing-overmolded-terminal-18x10.webp 18w\" 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\">What is the main difference between insert molding and insert overmolding?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Insert molding typically encapsulates metal fasteners inside a single rigid plastic resin. Insert overmolding involves a multi-layer process where a metal insert is encapsulated in rigid plastic and subsequently covered with a flexible elastomer layer like TPE or TPU.<\/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\">How do you prevent plastic from leaking onto metal contact pins during molding?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Preventing plastic flash requires machining mold shut-off lands with tolerances tighter than 0.01 mm. Precision-ground steel lands clamp firmly against the metal insert shoulder, forming a mechanical barrier that blocks molten plastic.<\/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\">Why is preheating metal inserts critical before overmolding?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Preheating metal inserts to 100\u00b0C reduces the temperature differential between cold metal and molten plastic. Lower thermal gradients prevent the polymer skin from freezing prematurely, reducing residual stresses that cause cracking.<\/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\">How does insert overmolding achieve IP67 waterproof sealing?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Achieving IP67 sealing relies on molding elastomeric resins like Santoprene TPV directly over metal leads and housing seams. The shrinking elastomer compresses tightly around the metal profile, forming a continuous gasket.<\/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\">Which plastics are best for encapsulating high-voltage EV busbars?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Flame-retardant Polyamide 66 (PA66-GF30) and Polybutylene Terephthalate (PBT) are preferred for high-voltage busbars. These resins combine high mechanical stiffness, UL94 V-0 flame retardancy, and comparative tracking index (CTI) ratings exceeding 600V.<\/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\">Can electronic circuit boards (PCBs) be encapsulated directly with insert overmolding?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Direct encapsulation of PCBs is performed using low-pressure polyamide hot melt resins or gentle secondary injection. Lower injection pressures protect delicate solder joints and wire bonds from mechanical crush damage.<\/p>\n<\/div>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Exposing electronic sensors, high-voltage battery busbars, and cable assemblies to harsh automotive fluids and ambient moisture accelerates corrosive failure. Traditional potting compounds and secondary silicone seals crack under continuous mechanical vibration, permitting electrolyte fluids to short-circuit internal connections. Encapsulating metal contacts and printed circuit boards directly within engineering thermoplastics creates a monolithic barrier that halts [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3143,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3142","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\/3142","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=3142"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/3142\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/3143"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=3142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/categories?post=3142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/tags?post=3142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}