{"id":3210,"date":"2026-08-26T16:17:46","date_gmt":"2026-08-26T08:17:46","guid":{"rendered":"http:\/\/0"},"modified":"2026-08-25T18:07:41","modified_gmt":"2026-08-25T10:07:41","slug":"managing-tight-tolerances-in-two-shot-injection-molding","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/vi\/blog\/managing-tight-tolerances-in-two-shot-injection-molding\/","title":{"rendered":"Qu\u1ea3n l\u00fd Dung sai Ch\u1eb7t ch\u1ebd trong \u00c9p phun Hai l\u1ea7n"},"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\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc c\u1ea5p micron trong c\u00e1c linh ki\u1ec7n nh\u1ef1a \u0111a v\u1eadt li\u1ec7u \u0111\u1eb7t ra nh\u1eefng th\u00e1ch th\u1ee9c k\u1ef9 thu\u1eadt c\u1ef1c k\u1ef3 l\u1edbn. Vi\u1ec7c phun hai lo\u1ea1i nh\u1ef1a n\u00f3ng ch\u1ea3y kh\u00e1c nhau v\u00e0o m\u1ed9t khu\u00f4n \u0111\u00f2i h\u1ecfi ph\u1ea3i qu\u1ea3n l\u00fd \u0111\u1ed3ng th\u1eddi \u0111\u1ed9 ch\u00ednh x\u00e1c c\u0103n ch\u1ec9nh xoay, \u0111\u1ed9 co r\u00fat nh\u1ef1a kh\u00e1c nhau v\u00e0 kh\u1edbp n\u1ed1i b\u1ec1 m\u1eb7t ph\u00e2n khu\u00f4n. Sai s\u1ed1 c\u1ed9ng d\u1ed3n dung sai gi\u1eefa l\u00f5i phun l\u1ea7n m\u1ed9t v\u00e0 khoang phun l\u1ea7n hai c\u00f3 th\u1ec3 g\u00e2y ra bavia \u0111\u01b0\u1eddng ph\u00e2n khu\u00f4n nghi\u00eam tr\u1ecdng ho\u1eb7c l\u00e0m h\u1ecfng th\u00e9p khu\u00f4n.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3214\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/rotary-turntable-indexing-accuracy.webp\" alt=\"rotary-turntable-indexing-accuracy\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/rotary-turntable-indexing-accuracy.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/rotary-turntable-indexing-accuracy-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/rotary-turntable-indexing-accuracy-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/rotary-turntable-indexing-accuracy-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/rotary-turntable-indexing-accuracy-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\">Hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1ch \u0111\u1ed9 l\u1eb7p l\u1ea1i c\u1ee7a b\u00e0n xoay m\u00e1y v\u00e0 \u0111\u1ed9ng l\u1ef1c l\u00e0m ngu\u1ed9i nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00ecnh d\u1ea1ng linh ki\u1ec7n gi\u00fap c\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf thi\u1ebft l\u1eadp c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt tr\u00ean b\u1ea3n v\u1ebd th\u1ef1c t\u1ebf. H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt n\u00e0y xem x\u00e9t \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u1ee5c quay, m\u00f4 h\u00ecnh b\u00f9 co r\u00fat kh\u00e1c nhau v\u00e0 c\u00e1c quy tr\u00ecnh \u0111o l\u01b0\u1eddng t\u1ecda \u0111\u1ed9 ti\u00ean ti\u1ebfn.<\/p>\n<\/section>\n<p><!-- Navigation Menu (\u9876\u90e8\u6a21\u5757\u5bfc\u822a\u680f) --><\/p>\n<nav style=\"background-color: #f8f9fa;border-left: 4px solid #0056b3;padding: 24px;border-radius: 6px;margin: 30px 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=\"#rotary-alignment\">1. Dung Sai C\u0103n Ch\u1ec9nh Xoay Khu\u00f4n (\u00b10.01 mm) v\u00e0 \u0110\u1ecbnh V\u1ecb Khoang<\/a><\/li>\n<li style=\"margin-bottom: 10px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#differential-shrinkage\">2. Qu\u1ea3n L\u00fd T\u1ed1c \u0110\u1ed9 Co R\u00fat Kh\u00e1c Nhau Gi\u1eefa Hai Lo\u1ea1i Nh\u1ef1a Kh\u00e1c Nhau<\/a><\/li>\n<li style=\"margin-bottom: 10px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#metrology-inspection\">3. Ki\u1ec3m \u0110\u1ecbnh \u0110o L\u01b0\u1eddng: M\u00e1y CMM Zeiss (\u00b10.003 mm) &amp; M\u00e1y \u0110o Quang H\u1ecdc OGP<\/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 S\u1ea3n Xu\u1ea5t 2K \u0110\u1ed9 Ch\u00ednh X\u00e1c Cao<\/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<\/nav>\n<p><!-- Section 1 (\u524d\u90e8\uff1a\u76ee\u6807\u8bcd\u9996\u6b21\u51fa\u73b0\u5e76\u52a0\u7c97) --><\/p>\n<section id=\"rotary-alignment\" 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\">Dung Sai C\u0103n Ch\u1ec9nh Xoay Khu\u00f4n (\u00b10.01 mm) v\u00e0 \u0110\u1ecbnh V\u1ecb Khoang<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3212\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/mold-core-locating-pins-alignment.webp\" alt=\"mold-core-locating-pins-alignment\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/mold-core-locating-pins-alignment.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/mold-core-locating-pins-alignment-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/mold-core-locating-pins-alignment-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/mold-core-locating-pins-alignment-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/mold-core-locating-pins-alignment-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\">Duy tr\u00ec dung sai ch\u1eb7t ch\u1ebd <strong>\u00e9p phun hai l\u1ea7n<\/strong> \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c chuy\u1ec3n \u0111\u1ed9ng quay c\u1ee7a l\u00f5i khu\u00f4n ch\u00ednh. Vi\u1ec7c xoay l\u00f5i khu\u00f4n 180 \u0111\u1ed9 gi\u1eefa c\u00e1c giai \u0111o\u1ea1n phun ph\u1ee5 thu\u1ed9c v\u00e0o c\u01a1 c\u1ea5u th\u1ee7y l\u1ef1c h\u1ea1ng n\u1eb7ng ho\u1eb7c servo-\u0111i\u1ec7n <strong>t\u1ea5m b\u00e0n xoay quay<\/strong> c\u01a1 kh\u00ed c\u1ee9ng <strong>\u5b9a\u4f4d\u9500<\/strong> v\u00e0 ch\u1ed1t \u0111\u1ecbnh v\u1ecb li\u00ean \u0111\u1ed9ng \u0103n kh\u1edbp v\u1edbi b\u1ea1c \u0111\u1ecbnh v\u1ecb tr\u00ean t\u1ea5m khu\u00f4n c\u1ed1 \u0111\u1ecbnh tr\u01b0\u1edbc khi k\u1eb9p khu\u00f4n. S\u1ef1 \u0103n kh\u1edbp c\u1ee7a ch\u1ed1t \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u0111\u1ed3ng tr\u1ee5c gi\u1eefa khoang v\u00e0 l\u00f5i lu\u00f4n n\u1eb1m trong ph\u1ea1m vi \u00b10,01 mm qua h\u00e0ng tr\u0103m ngh\u00ecn chu k\u1ef3.<\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Duy tr\u00ec \u0111\u1ed9 l\u1eb7p l\u1ea1i \u0111\u1ecbnh v\u1ecb d\u01b0\u1edbi milimet ng\u0103n ch\u1eb7n th\u00e9p khoang th\u1ee9 c\u1ea5p l\u00e0m x\u01b0\u1edbc ho\u1eb7c nghi\u1ec1n n\u00e1t ch\u1ea5t n\u1ec1n ch\u00ednh \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00fac tr\u01b0\u1edbc. C\u00e1c k\u1ef9 s\u01b0 d\u1ee5ng c\u1ee5 m\u00e0i c\u00e1c b\u1ec1 m\u1eb7t c\u1eaft v\u1edbi dung sai l\u1eafp kh\u00edt ch\u1eb7t \u0111\u1ec3 t\u1ea1o ra c\u00e1c v\u00f2ng \u0111\u1ec7m ranh gi\u1edbi s\u1eafc n\u00e9t gi\u1eefa c\u00e1c m\u00e0u ho\u1eb7c v\u1eadt li\u1ec7u t\u01b0\u01a1ng ph\u1ea3n.<\/p>\n<p><!-- Numbered List --><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 16px\">C\u00e1c quy tr\u00ecnh k\u1ef9 thu\u1eadt c\u0103n ch\u1ec9nh l\u00f5i 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>\u0102n kh\u1edbp ch\u1ed1t \u0111\u1ecbnh v\u1ecb quay<\/strong>\u2014C\u00e1c ch\u1ed1t \u0111\u1ecbnh v\u1ecb th\u1ee7y l\u1ef1c kh\u00f3a c\u01a1 h\u1ecdc t\u1ea5m quay tr\u01b0\u1edbc khi \u00e1p l\u1ef1c k\u1eb9p khu\u00f4n \u0111\u01b0\u1ee3c t\u00e1c d\u1ee5ng.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>L\u1eafp kh\u00edt b\u1ec1 m\u1eb7t c\u1eaft khoang<\/strong>\u2014M\u00e0i c\u00e1c b\u1ec1 m\u1eb7t l\u00e0m k\u00edn th\u00e9p d\u1ee5ng c\u1ee5 v\u1edbi dung sai l\u1eafp d\u01b0\u1edbi \u00b10,01 mm ng\u0103n ch\u1eb7n ba via \u0111\u00e0n h\u1ed3i m\u1ec1m.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Khoan r\u00e3nh gi\u1ea3i ph\u00f3ng ch\u1ea5t n\u1ec1n<\/strong>\u2014Gia c\u00f4ng c\u00e1c b\u1eadc gi\u1ea3m \u00e1p 0,15 mm tr\u00ean c\u00e1c b\u1ec1 m\u1eb7t khoang th\u1ee9 c\u1ea5p lo\u1ea1i b\u1ecf r\u1ee7i ro nghi\u1ec1n n\u00e1t ch\u1ea5t n\u1ec1n.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>\u0110\u1ed3ng b\u1ed9 k\u00eanh nhi\u1ec7t<\/strong>\u2014C\u00e2n b\u1eb1ng nhi\u1ec7t \u0111\u1ed9 m\u1ea1ch l\u00e0m m\u00e1t gi\u1eefa tr\u1ea1m 1 v\u00e0 2 ng\u0103n ch\u1eb7n s\u1ef1 gi\u00e3n n\u1edf l\u00f5i kh\u00f4ng \u0111\u1ed1i x\u1ee9ng.<\/li>\n<\/ol>\n<\/section>\n<p><!-- Section 2 (\u4e2d\u90e8\uff1a\u76ee\u6807\u8bcd\u4e0d\u52a0\u7c97\uff0c\u5dee\u5f02\u6536\u7f29\u7387\u4e0e\u516c\u5dee\u5bf9\u7167\u8868) --><\/p>\n<section id=\"differential-shrinkage\" 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\">Qu\u1ea3n l\u00fd t\u1ef7 l\u1ec7 co r\u00fat ch\u00eanh l\u1ec7ch gi\u1eefa hai lo\u1ea1i nh\u1ef1a kh\u00e1c nhau<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3217\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-resin-shrinkage-boundary-test.webp\" alt=\"dual-resin-shrinkage-boundary-test\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-resin-shrinkage-boundary-test.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-resin-shrinkage-boundary-test-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-resin-shrinkage-boundary-test-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-resin-shrinkage-boundary-test-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-resin-shrinkage-boundary-test-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 <strong>t\u1ed1c \u0111\u1ed9 co r\u00fat kh\u00e1c bi\u1ec7t<\/strong> gi\u1eefa c\u00e1c polymer t\u01b0\u01a1ng ph\u1ea3n \u0111\u1ea1i di\u1ec7n cho th\u00e1ch th\u1ee9c v\u1eadt l\u00fd ph\u1ee9c t\u1ea1p nh\u1ea5t trong k\u1ef9 thu\u1eadt \u00e9p nhi\u1ec1u v\u1eadt li\u1ec7u. C\u00e1c ch\u1ea5t n\u1ec1n c\u1ee9ng ch\u00ednh \u0111\u01b0\u1ee3c \u00e9p t\u1eeb nh\u1ef1a v\u00f4 \u0111\u1ecbnh h\u00ecnh nh\u01b0 <strong>polycarbonate (PC)<\/strong> th\u1ec3 hi\u1ec7n t\u1ed1c \u0111\u1ed9 co r\u00fat \u0111\u1eb3ng h\u01b0\u1edbng t\u1eeb 0,5% \u0111\u1ebfn 0,7%. C\u00e1c l\u1edbp \u0111\u00e0n h\u1ed3i th\u1ee9 c\u1ea5p c\u1ee7a <strong>TPE<\/strong> ho\u1eb7c <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/thermoplastic-polyurethane-tpu\/\"><strong>TPU<\/strong><\/a> co l\u1ea1i v\u1edbi t\u1ed1c \u0111\u1ed9 t\u1eeb 1,2% \u0111\u1ebfn 2,5% trong qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i. C\u00e1c polymer c\u1ea5u tr\u00fac b\u00e1n tinh th\u1ec3 nh\u01b0 <strong>PA66-GF30<\/strong> co r\u00fat kh\u00f4ng \u0111\u1eb3ng h\u01b0\u1edbng t\u00f9y thu\u1ed9c v\u00e0o vect\u01a1 \u0111\u1ecbnh h\u01b0\u1edbng s\u1ee3i.<\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Qu\u1ea3n l\u00fd dung sai \u00e9p phun hai l\u1ea7n tr\u00ean c\u00e1c th\u00e0nh ph\u1ea7n \u0111a nh\u1ef1a ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c b\u00f9 tr\u1eeb tr\u01b0\u1edbc k\u00edch th\u01b0\u1edbc th\u00e9p khu\u00f4n m\u1ed9t c\u00e1ch \u0111\u1ed9c l\u1eadp. C\u00e1c nh\u00e0 ch\u1ebf t\u1ea1o khu\u00f4n t\u00ednh to\u00e1n ch\u00eanh l\u1ec7ch co r\u00fat th\u1ec3 t\u00edch cho t\u1eebng giai \u0111o\u1ea1n v\u1eadt li\u1ec7u, c\u1eaft th\u00e9p l\u00f5i v\u00e0 khoang v\u1edbi c\u00e1c b\u00f9 tr\u1eeb k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1ee3c ti\u1ec1n b\u00f9 t\u00f9y ch\u1ec9nh. B\u1ea3ng 1 d\u01b0\u1edbi \u0111\u00e2y ph\u00e1c th\u1ea3o c\u00e1c ch\u00eanh l\u1ec7ch co r\u00fat \u0111i\u1ec3n h\u00ecnh v\u00e0 gi\u1edbi h\u1ea1n dung sai c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c:<\/p>\n<p><!-- Table 1: Shrinkage and Tolerance Comparison 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\">Nh\u1ef1a n\u1ec1n ch\u00ednh<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">\u0110\u1ed9 co r\u00fat n\u1ec1n (%)<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Nh\u1ef1a \u00e9p ph\u1ee7 th\u1ee9 c\u1ea5p<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">\u0110\u1ed9 co r\u00fat \u00e9p ph\u1ee7 (%)<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">Dung sai t\u1edbi h\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c<\/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\">Polycarbonate (Lexan 141R)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">0.5% \u2013 0.7%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">TPU g\u1ed1c ester (Desmopan)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.2% \u2013 1.8%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u00b10.02 mm (M\u1eb7t s\u1ed1 chi\u1ebfu s\u00e1ng n\u1ec1n)<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">ABS (Polylac PA-757)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">0.4% \u2013 0.6%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">TPE g\u1ed1c SEBS (Kraiburg)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.5% \u2013 2.2%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u00b10.03 mm (Tay c\u1ea7m c\u1ea7m tay c\u00f4ng th\u00e1i h\u1ecdc)<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">PA66-GF30 (Zytel 70G33L)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">0.3% \u2013 0.8%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">Santoprene TPV (60A)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.8% \u2013 2.5%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u00b10.04 mm (Ph\u1edbt l\u00e0m k\u00edn \u0111\u1ea7u n\u1ed1i \u00f4 t\u00f4 IP67)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<p><!-- Section 3 (\u4e2d\u540e\u90e8\uff1a\u4e09\u5750\u6807\u68c0\u6d4b\u4e0e\u8d28\u91cf\u9a8c\u8bc1) --><\/p>\n<section id=\"metrology-inspection\" 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\">X\u00e1c nh\u1eadn \u0111o l\u01b0\u1eddng: Zeiss CMM (\u00b10.003 mm) &amp; \u0110o l\u01b0\u1eddng quang h\u1ecdc OGP<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3215\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/zeiss-cmm-dual-material-scan.webp\" alt=\"zeiss-cmm-dual-material-scan\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/zeiss-cmm-dual-material-scan.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/zeiss-cmm-dual-material-scan-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/zeiss-cmm-dual-material-scan-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/zeiss-cmm-dual-material-scan-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/zeiss-cmm-dual-material-scan-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\">Vi\u1ec7c x\u00e1c nh\u1eadn c\u00e1c bi\u00ean d\u1ea1ng h\u00ecnh h\u1ecdc ph\u1ee9c t\u1ea1p tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn \u0111a v\u1eadt li\u1ec7u \u0111\u00f2i h\u1ecfi ph\u00e9p \u0111o t\u1ecda \u0111\u1ed9 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao. C\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m ki\u1ec3m tra \u0111o l\u01b0\u1eddng s\u1eed d\u1ee5ng m\u00e1y t\u1ef1 \u0111\u1ed9ng <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/quality-control\/\"><strong>Zeiss CMM<\/strong><\/a> m\u00e1y c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c qu\u00e9t \u00b10,003 mm \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m v\u1ecb tr\u00ed th\u1ef1c. H\u1ec7 th\u1ed1ng \u0111o quang h\u1ecdc OGP kh\u00f4ng ti\u1ebfp x\u00fac qu\u00e9t c\u00e1c \u0111\u01b0\u1eddng ph\u00e2n t\u00e1ch m\u00e0u m\u1ea3nh v\u00e0 ranh gi\u1edbi b\u1ecbt k\u00edn \u0111\u00e0n h\u1ed3i m\u1ec1m m\u00e0 kh\u00f4ng t\u00e1c d\u1ee5ng l\u1ef1c ti\u1ebfp x\u00fac v\u1eadt l\u00fd.<\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Vi\u1ec7c ki\u1ec3m tra dung sai \u00e9p phun hai th\u00e0nh ph\u1ea7n d\u01b0\u1edbi h\u1ec7 th\u1ed1ng ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 l\u1eb7p l\u1ea1i ho\u00e0n to\u00e0n gi\u1eefa c\u00e1c l\u00f4 trong c\u00e1c \u0111\u1ee3t s\u1ea3n xu\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn. B\u00e1o c\u00e1o Ki\u1ec3m tra S\u1ea3n ph\u1ea9m \u0110\u1ea7u ti\u00ean (FAI) to\u00e0n di\u1ec7n v\u00e0 d\u1eef li\u1ec7u ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh th\u1ed1ng k\u00ea x\u00e1c minh CpK &gt; 1,67 tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c k\u00edch th\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<\/section>\n<p><!-- Section 4 (\u540e\u90e8\uff1a\u5de5\u5382\u5b9e\u529b\u6536\u5c3e\u4e0e\u4e3b\u8bcd\u52a0\u7c97) --><\/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 s\u1ea3n xu\u1ea5t 2K \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3211\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-cleanroom-2k-press-bay-2.webp\" alt=\"jucheng-cleanroom-2k-press-bay-2\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-cleanroom-2k-press-bay-2.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-cleanroom-2k-press-bay-2-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-cleanroom-2k-press-bay-2-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-cleanroom-2k-press-bay-2-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/jucheng-cleanroom-2k-press-bay-2-18x10.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 mang l\u1ea1i kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn v\u1edbi h\u01a1n 35 m\u00e1y \u00e9p phun t\u1ef1 \u0111\u1ed9ng c\u00f3 l\u1ef1c k\u1eb9p t\u1eeb 15T \u0111\u1ebfn 3000T. V\u1eadn h\u00e0nh ph\u00f2ng khu\u00f4n 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 c\u1eaft khu\u00f4n t\u1eeb th\u00e9p c\u1ee9ng <strong>S136\u4e0d\u9508\u94a2<\/strong> ho\u1eb7c <strong>H13\u5de5\u5177\u94a2<\/strong>. H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn IATF 16949 v\u00e0 ISO 13485 h\u1ed7 tr\u1ee3 m\u1ecdi quy tr\u00ecnh s\u1ea3n xu\u1ea5t nhi\u1ec1u th\u00e0nh ph\u1ea7n, cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 t\u00e0i li\u1ec7u PPAP C\u1ea5p \u0111\u1ed9 3 cho c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh \u00f4 t\u00f4.<\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">V\u1eadn h\u00e0nh b\u1ed9 ph\u1eadn \u00e9p phun trong ph\u00f2ng s\u1ea1ch ISO Class 8 b\u1ea3o v\u1ec7 c\u00e1c b\u1ed9 ph\u1eadn y t\u1ebf kh\u1ecfi nhi\u1ec5m h\u1ea1t trong qu\u00e1 tr\u00ecnh \u00e9p phun v\u00e0 \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng. Duy tr\u00ec dung sai \u00e9p phun hai th\u00e0nh ph\u1ea7n ch\u1eb7t ch\u1ebd d\u1ef1a v\u00e0o ch\u1ebf t\u1ea1o khu\u00f4n CNC n\u1ed9i b\u1ed9 cho <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/service\/two-shot-injection-molding\/\"><strong>\u00e9p phun hai th\u00e0nh ph\u1ea7n<\/strong><\/a>.<\/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-3213\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/optical-measurement-2k-shut-off.webp\" alt=\"optical-measurement-2k-shut-off\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/optical-measurement-2k-shut-off.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/optical-measurement-2k-shut-off-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/optical-measurement-2k-shut-off-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/optical-measurement-2k-shut-off-768x429.webp 768w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/optical-measurement-2k-shut-off-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\">Dung sai k\u00edch th\u01b0\u1edbc \u0111i\u1ec3n h\u00ecnh trong \u00e9p phun hai th\u00e0nh ph\u1ea7n l\u00e0 g\u00ec?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Dung sai th\u01b0\u01a1ng m\u1ea1i ti\u00eau chu\u1ea9n cho \u00e9p phun hai th\u00e0nh ph\u1ea7n n\u1eb1m trong kho\u1ea3ng \u00b10,03 mm \u0111\u1ebfn \u00b10,05 mm tr\u00ean ranh gi\u1edbi gi\u1eefa n\u1ec1n c\u1ee9ng v\u00e0 l\u1edbp ph\u1ee7. D\u1ee5ng c\u1ee5 ch\u00ednh x\u00e1c v\u1edbi ch\u1ed1t \u0111\u1ecbnh v\u1ecb l\u00f5i m\u00e0i CNC \u0111\u1ea1t \u0111\u01b0\u1ee3c dung sai ch\u1eb7t ch\u1ebd \u0111\u1ebfn \u00b10,01 mm tr\u00ean c\u00e1c b\u01b0\u1edbc b\u1ecbt k\u00edn quan tr\u1ecdng v\u00e0 c\u00e1c bi\u1ec3u t\u01b0\u1ee3ng chi\u1ebfu s\u00e1ng n\u1ec1n.<\/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\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u00e1c ch\u1ed1t \u0111\u1ecbnh v\u1ecb \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 l\u1eb7p l\u1ea1i c\u1ee7a b\u00e0n xoay?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">C\u00e1c ch\u1ed1t \u0111\u1ecbnh v\u1ecb v\u00e0 ch\u1ed1t c\u00f4n t\u00e1c \u0111\u1ed9ng v\u00e0o c\u00e1c b\u1ea1c \u0111\u1ecbnh v\u1ecb \u0111\u01b0\u1ee3c m\u00e0i ch\u00ednh x\u00e1c tr\u00ean t\u1ea5m khu\u00f4n c\u1ed1 \u0111\u1ecbnh tr\u01b0\u1edbc khi k\u1eb9p cu\u1ed1i c\u00f9ng. S\u1ef1 \u0103n kh\u1edbp c\u01a1 h\u1ecdc c\u1ee7a ch\u1ed1t lo\u1ea1i b\u1ecf \u0111\u1ed9 r\u01a1 c\u1ee7a c\u01a1 c\u1ea5u quay, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 l\u1eb7p l\u1ea1i \u0111\u1ecbnh v\u1ecb b\u00e0n xoay trong ph\u1ea1m vi \u00b10,005 mm.<\/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\">T\u1ea1i sao co r\u00fat kh\u00e1c bi\u1ec7t g\u00e2y cong v\u00eanh trong c\u00e1c b\u1ed9 ph\u1eadn 2K?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Co r\u00fat kh\u00e1c bi\u1ec7t x\u1ea3y ra khi n\u1ec1n c\u1ee9ng v\u00e0 l\u1edbp ph\u1ee7 linh ho\u1ea1t co l\u1ea1i v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau trong qu\u00e1 tr\u00ecnh l\u00e0m ngu\u1ed9i. L\u1ef1c co r\u00fat cao trong ch\u1ea5t \u0111\u00e0n h\u1ed3i th\u1ee9 c\u1ea5p k\u00e9o l\u00ean th\u00e0nh n\u1ec1n c\u1ee9ng, g\u00e2y ra \u0111\u1ed9 cong ho\u1eb7c xo\u1eafn k\u00edch th\u01b0\u1edbc. B\u00f9 tr\u01b0\u1edbc k\u00edch th\u01b0\u1edbc th\u00e9p khu\u00f4n v\u00e0 c\u00e2n b\u1eb1ng c\u00e1c k\u00eanh l\u00e0m m\u00e1t gi\u1ea3i quy\u1ebft hi\u1ec7n t\u01b0\u1ee3ng cong v\u00eanh.<\/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\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra b\u1eb1ng m\u00e1y CMM Zeiss x\u00e1c minh c\u00e1c b\u1ed9 ph\u1eadn \u0111a v\u1eadt li\u1ec7u?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">M\u00e1y \u0111o t\u1ecda \u0111\u1ed9 CMM Zeiss s\u1eed d\u1ee5ng \u0111\u1ea7u d\u00f2 ch\u1ea1m \u0111\u1ea7u bi h\u1ed3ng ng\u1ecdc \u0111\u1ec3 qu\u00e9t t\u1ecda \u0111\u1ed9 h\u00ecnh h\u1ecdc 3D v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c qu\u00e9t \u00b10,003 mm. Qu\u00e9t \u0111\u1ea7u d\u00f2 ch\u1ea1m x\u00e1c minh b\u01b0\u1edbc l\u1ed7, \u0111\u1ed9 \u0111\u1ed3ng t\u00e2m c\u1ee7a b\u1ed9 ph\u1eadn ch\u00e8n v\u00e0 \u0111\u1ed9 ph\u1eb3ng c\u1ee7a n\u1ec1n so v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb danh ngh\u0129a CAD k\u1ef9 thu\u1eadt s\u1ed1.<\/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\">Can optical non-contact profilers measure soft TPE overmold dimensions?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Optical non-contact profilers utilize high-magnification video cameras and laser sensors to measure soft TPE features without physical contact. Physical touch probes can deflect or compress soft rubber, making non-contact optical metrology essential for elastomeric seals.<\/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\">Why is mold steel hardness critical for maintaining 2K shut-off tolerances?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Hardened mold steels like S136 and H13 heat-treated to HRC 48-52 resist mechanical abrasive wear and clamping fatigue over 1,000,000 cycles. Maintaining high steel hardness prevents shut-off lands from deforming, eliminating soft elastomer flash.<\/p>\n<\/div>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Achieving micron-level dimensional accuracy in multi-material plastic components presents extreme engineering challenges. Injecting two distinct polymer melts into a single mold tool requires managing rotational indexing alignment, differential resin shrinkage, and interfacial shut-off fitments concurrently. Cumulative tolerance stack-up errors between the first-shot substrate and second-shot cavity can cause severe parting line flash or crushed tool [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3216,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3210","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\/3210","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=3210"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/3210\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/3216"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=3210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/categories?post=3210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/tags?post=3210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}