{"id":4058,"date":"2026-10-21T16:57:51","date_gmt":"2026-10-21T08:57:51","guid":{"rendered":"http:\/\/0"},"modified":"2026-10-20T13:48:17","modified_gmt":"2026-10-20T05:48:17","slug":"large-parts-warp-where-the-structure-changes","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/vi\/blog\/large-parts-warp-where-the-structure-changes\/","title":{"rendered":"C\u00e1c chi ti\u1ebft l\u1edbn b\u1ecb cong v\u00eanh t\u1ea1i v\u1ecb tr\u00ed k\u1ebft c\u1ea5u thay \u0111\u1ed5i"},"content":{"rendered":"<p>\u0110\u1ed9 cong v\u00eanh c\u1ee7a chi ti\u1ebft l\u1edbn khi \u00e9p phun th\u01b0\u1eddng b\u1ecb \u0111\u1ed5 l\u1ed7i cho l\u00e0m ngu\u1ed9i, nh\u01b0ng s\u1ef1 thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u s\u1edbm h\u01a1n\u2014trong c\u00e1ch chi ti\u1ebft \u0111\u01b0\u1ee3c \u0111i\u1ec1n \u0111\u1ea7y, n\u00e9n ch\u1eb7t, th\u00e1o khu\u00f4n v\u00e0 \u0111\u01b0\u1ee3c \u0111\u1ee1 sau khi \u0111\u1ea9y ra. Tr\u00ean m\u1ed9t chi ti\u1ebft l\u1edbn, m\u1ed9t kh\u00e1c bi\u1ec7t nh\u1ecf gi\u1eefa c\u00e1c v\u00f9ng c\u00f3 th\u1ec3 tr\u1edf n\u00ean r\u00f5 r\u00e0ng d\u01b0\u1edbi d\u1ea1ng xo\u1eafn, v\u00f5ng, nh\u1ea5c m\u00e9p ho\u1eb7c l\u1ec7ch khi l\u1eafp r\u00e1p. Nhi\u1ec7m v\u1ee5 \u0111\u1ea7u ti\u00ean l\u00e0 x\u00e1c \u0111\u1ecbnh n\u01a1i \u0111\u1ed9 l\u1ec7ch b\u1eaft \u0111\u1ea7u v\u00e0 li\u1ec7u c\u00f9ng m\u1ed9t ki\u1ec3u c\u00f3 l\u1eb7p l\u1ea1i kh\u00f4ng.<\/p>\n<p>\u0110\u1eebng \u00e9p ph\u1eb3ng chi ti\u1ebft b\u1eb1ng l\u1ef1c r\u1ed3i g\u1ecdi \u0111\u00f3 l\u00e0 s\u1eeda quy tr\u00ecnh. H\u00e3y ghi l\u1ea1i h\u00ecnh d\u1ea1ng \u1edf tr\u1ea1ng th\u00e1i t\u1ef1 do, \u0111i\u1ec1u ki\u1ec7n \u0111\u1ee1, h\u01b0\u1edbng \u0111o v\u00e0 th\u1eddi gian sau khi \u00e9p. M\u1ed9t chi ti\u1ebft l\u1edbn c\u00f3 th\u1ec3 v\u00f5ng d\u01b0\u1edbi tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a ch\u00ednh n\u00f3 ho\u1eb7c thay \u0111\u1ed5i khi x\u1eed l\u00fd, v\u00ec v\u1eady ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a vi\u1ec7c ch\u1ea9n \u0111o\u00e1n.<\/p>\n<nav class=\"table-of-contents\">\n<h2>Trong b\u00e0i vi\u1ebft n\u00e0y<\/h2>\n<ol>\n<li><a href=\"#pattern\">M\u00f4 t\u1ea3 h\u00ecnh d\u1ea1ng tr\u01b0\u1edbc khi \u0111\u1eb7t t\u00ean nguy\u00ean nh\u00e2n<\/a><\/li>\n<li><a href=\"#geometry\">T\u00ecm c\u00e1c chuy\u1ec3n ti\u1ebfp k\u1ebft c\u1ea5u v\u00e0 t\u00ednh b\u1ea5t \u0111\u1ed1i x\u1ee9ng<\/a><\/li>\n<li><a href=\"#process\">Truy v\u1ebft \u0111i\u1ec1n \u0111\u1ea7y, n\u00e9n ch\u1eb7t v\u00e0 l\u00e0m ngu\u1ed9i c\u00f9ng nhau<\/a><\/li>\n<li><a href=\"#measurement\">T\u00e1ch bi\u1ebfn thi\u00ean \u00e9p khu\u00f4n kh\u1ecfi \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111o l\u01b0\u1eddng<\/a><\/li>\n<li><a href=\"#faq\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<\/ol>\n<\/nav>\n<h2 id=\"pattern\">M\u00f4 t\u1ea3 h\u00ecnh d\u1ea1ng tr\u01b0\u1edbc khi \u0111\u1eb7t t\u00ean nguy\u00ean nh\u00e2n<\/h2>\n<p>\u0110\u1ecbnh ngh\u0129a bi\u1ebfn d\u1ea1ng b\u1eb1ng nh\u1eefng thu\u1eadt ng\u1eef m\u00e0 ng\u01b0\u1eddi kh\u00e1c c\u00f3 th\u1ec3 t\u00e1i t\u1ea1o: m\u00e9p n\u00e0o nh\u1ea5c l\u00ean, chu\u1ea9n n\u00e0o d\u1ecbch chuy\u1ec3n, t\u1ea5m cong v\u00e0o trong hay ra ngo\u00e0i, v\u00e0 \u0111\u1ed9 xo\u1eafn ch\u1ea1y t\u1eeb g\u00f3c n\u00e0y sang g\u00f3c kia hay kh\u00f4ng. Ch\u1ee5p \u1ea3nh chi ti\u1ebft tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t trung t\u00ednh v\u00e0 \u0111\u00e1nh d\u1ea5u c\u00e1c \u0111i\u1ec3m \u0111o. So s\u00e1nh c\u00f9ng c\u00e1c v\u1ecb tr\u00ed tr\u00ean c\u00e1c chi ti\u1ebft t\u1eeb c\u00e1c l\u00f2ng khu\u00f4n ho\u1eb7c chu k\u1ef3 kh\u00e1c nhau khi c\u00f3 th\u1ec3.<\/p>\n<p>T\u00e1ch m\u1ed9t xu h\u01b0\u1edbng h\u00ecnh d\u1ea1ng nh\u1ea5t qu\u00e1n kh\u1ecfi bi\u1ebfn thi\u00ean ng\u1eabu nhi\u00ean. N\u1ebfu m\u1ecdi chi ti\u1ebft \u0111\u1ec1u cong theo m\u1ed9t h\u01b0\u1edbng t\u01b0\u01a1ng t\u1ef1, h\u00e3y \u0111i\u1ec1u tra \u1ea3nh h\u01b0\u1edfng h\u1ec7 th\u1ed1ng t\u1eeb h\u00ecnh h\u1ecdc, d\u1ee5ng c\u1ee5 ho\u1eb7c quy tr\u00ecnh. N\u1ebfu h\u01b0\u1edbng thay \u0111\u1ed5i gi\u1eefa c\u00e1c chi ti\u1ebft, h\u00e3y xem x\u00e9t t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a chu k\u1ef3, t\u00ecnh tr\u1ea1ng v\u1eadt li\u1ec7u, vi\u1ec7c \u0111\u1ea9y ra v\u00e0 x\u1eed l\u00fd tr\u01b0\u1edbc khi thi\u1ebft k\u1ebf l\u1ea1i d\u1ee5ng c\u1ee5. Gi\u1eef l\u1ea1i m\u1eabu t\u1eeb c\u1ea3 chi ti\u1ebft \u0111\u1ea1t v\u00e0 chi ti\u1ebft b\u1ecb lo\u1ea1i.<\/p>\n<h2 id=\"geometry\">T\u00ecm c\u00e1c chuy\u1ec3n ti\u1ebfp k\u1ebft c\u1ea5u v\u00e0 t\u00ednh b\u1ea5t \u0111\u1ed1i x\u1ee9ng<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/10\/engineer-checking-large-housing-warp.webp\" alt=\"Engineer checking large housing warp\" title=\"K\u1ef9 s\u01b0 ki\u1ec3m tra \u0111\u1ed9 cong v\u00eanh c\u1ee7a v\u1ecf l\u1edbn\" width=\"1600\" height=\"900\" class=\"alignnone size-full\" \/><\/p>\n<p>C\u00e1c t\u1ea5m d\u00e0i, g\u00e2n l\u1ec7ch, tr\u1ee5 d\u00e0y, l\u1ed7 m\u1edf l\u1edbn v\u00e0 thay \u0111\u1ed5i ti\u1ebft di\u1ec7n th\u00e0nh c\u00f3 th\u1ec3 t\u1ea1o ra \u0111\u1ed9 c\u1ee9ng v\u00e0 h\u00e0nh vi l\u00e0m ngu\u1ed9i kh\u00e1c nhau tr\u00ean c\u00f9ng m\u1ed9t chi ti\u1ebft. M\u1ed9t b\u1ec1 m\u1eb7t r\u1ed9ng c\u00f3 th\u1ec3 tr\u00f4ng ph\u1eb3ng trong m\u00f4 h\u00ecnh CAD nh\u01b0ng l\u1ea1i \u00edt kh\u00e1ng u\u1ed1n khi \u0111\u00e3 ra kh\u1ecfi khu\u00f4n. H\u00e3y xem x\u00e9t \u0111\u01b0\u1eddng truy\u1ec1n t\u1ea3i v\u00e0 v\u1ecb tr\u00ed c\u00e1c \u0111i\u1ec3m l\u1eafp c\u0169ng nh\u01b0 \u0111\u1ed9 d\u00e0y th\u00e0nh danh ngh\u0129a.<\/p>\n<p>So s\u00e1nh c\u1ea3 hai m\u1eb7t c\u1ee7a chi ti\u1ebft v\u1ec1 g\u00e2n, v\u00e2n b\u1ec1 m\u1eb7t, t\u00edch t\u1ee5 v\u1eadt li\u1ec7u, c\u1eeda v\u00e0o v\u00e0 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m h\u1ea1n ch\u1ebf co r\u00fat. V\u1ea5n \u0111\u1ec1 li\u00ean quan kh\u00f4ng ch\u1ec9 l\u00e0 thi\u1ebft k\u1ebf c\u00f3 \u0111\u1ed1i x\u1ee9ng tr\u00ean m\u00e0n h\u00ecnh hay kh\u00f4ng; m\u00e0 l\u00e0 li\u1ec7u d\u1ee5ng c\u1ee5 v\u00e0 chi ti\u1ebft c\u00f3 tr\u1ea3i qua \u0111i\u1ec1n \u0111\u1ea7y, n\u00e9n ch\u1eb7t, l\u00e0m ngu\u1ed9i v\u00e0 th\u00e1o khu\u00f4n c\u00e2n b\u1eb1ng hay kh\u00f4ng. M\u1ed9t <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/service\/mold-flow-analysis\/\">ph\u00e2n t\u00edch d\u00f2ng ch\u1ea3y khu\u00f4n<\/a> c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ecbnh h\u00ecnh c\u00e1c c\u00e2u h\u1ecfi v\u1ec1 c\u00e2n b\u1eb1ng d\u00f2ng ch\u1ea3y v\u00e0 l\u00e0m ngu\u1ed9i, nh\u01b0ng d\u1ee5ng c\u1ee5 th\u1ef1c t\u1ebf v\u00e0 chi ti\u1ebft \u0111\u00e3 \u00e9p m\u1edbi quy\u1ebft \u0111\u1ecbnh li\u1ec7u thay \u0111\u1ed5i \u0111\u1ec1 xu\u1ea5t c\u00f3 hi\u1ec7u qu\u1ea3 kh\u00f4ng.<\/p>\n<h2 id=\"process\">Truy v\u1ebft \u0111i\u1ec1n \u0111\u1ea7y, n\u00e9n ch\u1eb7t v\u00e0 l\u00e0m ngu\u1ed9i c\u00f9ng nhau<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/10\/large-part-mold-cooling-detail.webp\" alt=\"Large part mold cooling detail\" title=\"Chi ti\u1ebft l\u00e0m ngu\u1ed9i khu\u00f4n cho chi ti\u1ebft l\u1edbn\" width=\"1600\" height=\"900\" class=\"alignnone size-full\" \/><\/p>\n<p>H\u00e3y d\u00f9ng so s\u00e1nh c\u00f3 ki\u1ec3m so\u00e1t thay v\u00ec thay \u0111\u1ed5i nhi\u1ec1u c\u00e0i \u0111\u1eb7t c\u00f9ng l\u00fac. Li\u00ean k\u1ebft m\u1ed7i m\u1eabu v\u1edbi h\u1ed3 s\u01a1 quy tr\u00ecnh v\u00e0 ghi ch\u00fa li\u1ec7u bi\u1ebfn d\u1ea1ng c\u00f3 thay \u0111\u1ed5i theo \u0111i\u1ec1u ki\u1ec7n chu k\u1ef3, kh\u1edfi \u0111\u1ed9ng, l\u00f4 v\u1eadt li\u1ec7u hay \u0111i\u1ec1u ch\u1ec9nh d\u1ee5ng c\u1ee5 kh\u00f4ng. Ki\u1ec3m tra c\u1eeda v\u00e0o v\u00e0 \u0111\u01b0\u1eddng d\u00f2ng ch\u1ea3y, h\u00e0nh vi chuy\u1ec3n ti\u1ebfp, t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a n\u00e9n ch\u1eb7t, l\u00e0m ngu\u1ed9i c\u1ee5c b\u1ed9 v\u00e0 th\u1eddi \u0111i\u1ec3m \u0111\u1ea9y ra nh\u01b0 m\u1ed9t h\u1ec7 th\u1ed1ng li\u00ean k\u1ebft.<\/p>\n<ol>\n<li><strong>X\u00e1c nh\u1eadn \u0111\u01b0\u1eddng c\u01a1 s\u1edf.<\/strong> Ghi l\u1ea1i c\u00f4ng th\u1ee9c quy tr\u00ecnh \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn, nh\u1eadn d\u1ea1ng nh\u1ef1a, l\u00f2ng khu\u00f4n v\u00e0 c\u00e1ch chi ti\u1ebft \u0111\u01b0\u1ee3c l\u1ea5y ra v\u00e0 \u0111\u1ee1.<\/li>\n<li><strong>Ki\u1ec3m tra s\u1ef1 kh\u00e1c bi\u1ec7t theo khu v\u1ef1c.<\/strong> So s\u00e1nh c\u00e1c m\u1ea1ch l\u00e0m m\u00e1t, chuy\u1ec3n ti\u1ebfp th\u00e0nh v\u00e0 tr\u00ecnh t\u1ef1 c\u00e1c v\u00f9ng \u0111\u01b0\u1ee3c n\u1ea1p v\u00e0 n\u00e9n ch\u1eb7t.<\/li>\n<li><strong>Ki\u1ec3m tra vi\u1ec7c th\u00e1o khu\u00f4n v\u00e0 x\u1eed l\u00fd.<\/strong> T\u00ecm c\u00e1c v\u1ebft k\u00e9o, d\u00ednh, v\u1ebft \u0111\u1ea9y c\u1ee7a ch\u1ed1t \u0111\u1ea9y ho\u1eb7c bi\u1ebfn d\u1ea1ng ph\u00e1t sinh khi chi ti\u1ebft c\u00f2n n\u00f3ng.<\/li>\n<li><strong>Ki\u1ec3m tra m\u1ed9t gi\u1ea3 thuy\u1ebft.<\/strong> Th\u1ef1c hi\u1ec7n m\u1ed9t \u0111i\u1ec1u ch\u1ec9nh c\u00f3 ghi nh\u1eadn, sau \u0111\u00f3 so s\u00e1nh c\u00f9ng c\u00e1c k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng \u1edf tr\u1ea1ng th\u00e1i t\u1ef1 do tr\u00ean c\u00e1c chi ti\u1ebft l\u1eb7p l\u1ea1i.<\/li>\n<\/ol>\n<p>M\u1ed9t \u0111i\u1ec1u ch\u1ec9nh quy tr\u00ecnh c\u1ea3i thi\u1ec7n m\u1ed9t c\u1ea1nh nh\u01b0ng l\u00e0m x\u1ea5u \u0111i m\u1ed9t \u0111\u1eb7c tr\u01b0ng l\u1eafp gh\u00e9p th\u00ec ch\u01b0a gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1. \u0110\u1ed1i v\u1edbi thay \u0111\u1ed5i khu\u00f4n, h\u00e3y th\u1ed1ng nh\u1ea5t c\u00e1c ki\u1ec3m tra k\u00edch th\u01b0\u1edbc v\u00e0 ch\u1ee9c n\u0103ng tr\u01b0\u1edbc l\u1ea7n ti\u1ebfp theo <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/service\/injection-mold-trial-and-validation\/\">th\u1eed nghi\u1ec7m v\u00e0 x\u00e1c nh\u1eadn khu\u00f4n \u00e9p phun<\/a>.<\/p>\n<h2 id=\"measurement\">T\u00e1ch bi\u1ebfn thi\u00ean \u00e9p khu\u00f4n kh\u1ecfi \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111o l\u01b0\u1eddng<\/h2>\n<p>C\u00e1c chi ti\u1ebft l\u1edbn nh\u1ea1y c\u1ea3m v\u1edbi c\u00e1ch ch\u00fang \u0111\u01b0\u1ee3c gi\u1eef v\u00e0 \u0111o. X\u00e1c nh\u1eadn r\u1eb1ng \u0111\u1ed3 g\u00e1 kh\u00f4ng k\u00e9o chi ti\u1ebft ph\u1eb3ng ra, r\u1eb1ng s\u01a1 \u0111\u1ed3 chu\u1ea9n tham chi\u1ebfu kh\u1edbp v\u1edbi l\u1eafp r\u00e1p, v\u00e0 r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c m\u1eabu \u0111\u01b0\u1ee3c \u0111o \u1edf c\u00f9ng h\u01b0\u1edbng v\u00e0 c\u00f9ng \u0111i\u1ec1u ki\u1ec7n \u0111\u1ee1. N\u1ebfu chi ti\u1ebft thay \u0111\u1ed5i sau khi th\u00e1o khu\u00f4n, h\u00e3y x\u00e1c \u0111\u1ecbnh th\u1eddi \u0111i\u1ec3m \u0111o v\u00e0 gi\u1eef kho\u1ea3ng th\u1eddi gian \u0111\u00f3 nh\u1ea5t qu\u00e1n.<\/p>\n<p>C\u0169ng c\u1ea7n ph\u00e2n bi\u1ec7t \u0111\u1ed9 cong ngo\u1ea1i quan v\u1edbi h\u01b0 h\u1ecfng ch\u1ee9c n\u0103ng. N\u1ebfu chi ti\u1ebft l\u1eafp r\u00e1p tr\u00ean c\u00e1c chu\u1ea9n tham chi\u1ebfu x\u00e1c \u0111\u1ecbnh v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 y\u00eau c\u1ea7u, m\u1ed9t \u0111\u01b0\u1eddng vi\u1ec1n kh\u00f4ng mang ch\u1ee9c n\u0103ng c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n c\u00f9ng dung sai nh\u01b0 m\u1ed9t \u0111\u1eb7c tr\u01b0ng l\u00e0m k\u00edn ho\u1eb7c c\u0103n ch\u1ec9nh. Ng\u01b0\u1ee3c l\u1ea1i, vi\u1ec7c \u00e9p m\u1ed9t chi ti\u1ebft m\u1ec1m d\u1ebbo v\u00e0o \u0111\u1ed3 g\u00e1 c\u00f3 th\u1ec3 che gi\u1ea5u m\u1ed9t v\u1ea5n \u0111\u1ec1 l\u1eafp r\u00e1p. H\u00e3y n\u00eau r\u00f5 \u0111i\u1ec1u ki\u1ec7n ch\u1ea5p nh\u1eadn v\u00e0 x\u00e1c nh\u1eadn chi ti\u1ebft trong m\u1ed9t c\u1ee5m l\u1eafp r\u00e1p \u0111\u1ea1i di\u1ec7n khi th\u00edch h\u1ee3p.<\/p>\n<p>Khi thi\u1ebft k\u1ebf, khu\u00f4n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111o \u0111\u1ec1u g\u00f3p ph\u1ea7n, h\u00e3y d\u00f9ng \u0111\u00e1nh gi\u00e1 ph\u1ed1i h\u1ee3p thay v\u00ec thay \u0111\u1ed5i c\u00e0i \u0111\u1eb7t ri\u00eang l\u1ebb. T\u1ed5ng th\u1ec3 <a href=\"https:\/\/www.jcinjectionmolding.com\/vi\/service\/custom-injection-molding\/\">\u0111\u00fac phun nh\u1ef1a<\/a> k\u1ebf ho\u1ea1ch n\u00ean c\u0103n ch\u1ec9nh h\u00ecnh h\u1ecdc, \u0111\u1ee1 khu\u00f4n, ki\u1ec3m so\u00e1t quy tr\u00ecnh v\u00e0 ti\u00eau ch\u00ed ki\u1ec3m tra.<\/p>\n<h2 id=\"faq\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>Chi ti\u1ebft l\u1edbn b\u1ecb cong v\u00eanh c\u00f3 lu\u00f4n c\u1ea7n th\u00eam th\u1eddi gian l\u00e0m m\u00e1t kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. L\u00e0m m\u00e1t l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1, nh\u01b0ng vi\u1ec7c n\u1ea1p, n\u00e9n ch\u1eb7t, h\u00ecnh h\u1ecdc, \u0111\u1ea9y khu\u00f4n v\u00e0 x\u1eed l\u00fd c\u0169ng c\u00f3 th\u1ec3 g\u00f3p ph\u1ea7n. H\u00e3y x\u00e1c \u0111\u1ecbnh ki\u1ec3u bi\u1ebfn d\u1ea1ng v\u00e0 ki\u1ec3m tra t\u1eebng nguy\u00ean nh\u00e2n m\u1ed9t.<\/p>\n<h3>T\u1ea1i sao m\u1ed9t chi ti\u1ebft l\u1edbn tr\u00f4ng ph\u1eb3ng trong \u0111\u1ed3 g\u00e1 nh\u01b0ng l\u1ea1i cong sau khi th\u00e1o ra?<\/h3>\n<p>\u0110\u1ed3 g\u00e1 c\u00f3 th\u1ec3 \u0111ang r\u00e0ng bu\u1ed9c chi ti\u1ebft. H\u00e3y so s\u00e1nh \u0111o \u1edf tr\u1ea1ng th\u00e1i t\u1ef1 do v\u00e0 c\u00f3 \u0111\u1ee1, v\u00e0 x\u00e1c nh\u1eadn r\u1eb1ng \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m tra ph\u1ea3n \u00e1nh c\u00e1ch chi ti\u1ebft \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p v\u00e0 s\u1eed d\u1ee5ng.<\/p>\n<h3>C\u00f3 n\u00ean \u00e1p d\u1ee5ng m\u1ed9t dung sai \u0111\u1ed9 ph\u1eb3ng cho to\u00e0n b\u1ed9 chi ti\u1ebft kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng t\u1ef1 \u0111\u1ed9ng. H\u00e3y x\u00e1c \u0111\u1ecbnh nh\u1eefng b\u1ec1 m\u1eb7t n\u00e0o ki\u1ec3m so\u00e1t l\u1eafp gh\u00e9p ho\u1eb7c ch\u1ee9c n\u0103ng, \u0111\u1eb7t datum quanh c\u00e1c giao di\u1ec7n \u0111\u00f3, v\u00e0 x\u00e1c \u0111\u1ecbnh ti\u00eau ch\u00ed th\u1ea9m m\u1ef9 ho\u1eb7c phi ch\u1ee9c n\u0103ng ri\u00eang khi c\u1ea7n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Large part injection molding warpage is often blamed on cooling, but the shape change can begin earlier\u2014in the way the part fills, packs, releases, and is supported after ejection. On a large component, a small difference between regions can become visible as twist, bow, edge lift, or a mismatch at assembly. The first task is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4063,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4058","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\/4058","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=4058"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/4058\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/4063"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=4058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/categories?post=4058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/tags?post=4058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}