{"id":3725,"date":"2026-09-25T11:36:06","date_gmt":"2026-09-25T03:36:06","guid":{"rendered":"http:\/\/0"},"modified":"2026-09-22T17:57:52","modified_gmt":"2026-09-22T09:57:52","slug":"thick-wall-molding-optical-problems","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/vi\/blog\/thick-wall-molding-optical-problems\/","title":{"rendered":"Khi th\u00e0nh d\u00e0y tr\u1edf th\u00e0nh v\u1ea5n \u0111\u1ec1 quang h\u1ecdc"},"content":{"rendered":"
\n

\u0110\u00fac th\u00e0nh d\u00e0y tr\u1edf th\u00e0nh v\u1ea5n \u0111\u1ec1 quang h\u1ecdc khi ti\u1ebft di\u1ec7n kh\u00f4ng c\u00f2n ngu\u1ed9i, n\u00e9n v\u00e0 co r\u00fat \u0111\u1ed3ng \u0111\u1ec1u. M\u1ed9t chi ti\u1ebft trong su\u1ed1t c\u00f3 th\u1ec3 r\u1eddi khu\u00f4n m\u00e0 kh\u00f4ng c\u00f3 khuy\u1ebft t\u1eadt thi\u1ebfu r\u00f3t r\u00f5 r\u00e0ng nh\u01b0ng l\u1ea1i ph\u00e1t tri\u1ec3n v\u1ebft l\u00f5m, l\u1ed7 r\u1ed7ng, v\u1ebft m\u1edd, chu k\u1ef3 d\u00e0i, \u1ee9ng su\u1ea5t ho\u1eb7c sai l\u1ec7ch k\u00edch th\u01b0\u1edbc. Ph\u1ea3n \u1ee9ng \u0111\u00fang kh\u00f4ng t\u1ef1 \u0111\u1ed9ng l\u00e0 t\u0103ng \u00e1p su\u1ea5t gi\u1eef. H\u00ecnh h\u1ecdc, th\u1eddi \u0111i\u1ec3m \u0111\u00f4ng \u0111\u1eb7c c\u1ee7a c\u1ed5ng r\u00f3t, c\u00e2n b\u1eb1ng nhi\u1ec7t, t\u00ecnh tr\u1ea1ng nh\u1ef1a v\u00e0 v\u00f9ng quang h\u1ecdc th\u1ef1c t\u1ebf ph\u1ea3i \u0111\u01b0\u1ee3c xem x\u00e9t nh\u01b0 m\u1ed9t h\u1ec7 th\u1ed1ng.<\/p>\n

\n

Chu\u1ed7i th\u1ea5t b\u1ea1i:<\/strong> ti\u1ebft di\u1ec7n d\u00e0y gi\u1eef nhi\u1ec7t; l\u1edbp v\u1ecf \u0111\u00f4ng \u0111\u1eb7c tr\u01b0\u1edbc; l\u00f5i ti\u1ebfp t\u1ee5c co r\u00fat; kh\u1ea3 n\u0103ng b\u00f9 tr\u1eeb tr\u1edf n\u00ean h\u1ea1n ch\u1ebf sau khi c\u1ed5ng r\u00f3t \u0111\u00f4ng \u0111\u1eb7c; s\u1ef1 thay \u0111\u1ed5i th\u1ec3 t\u00edch c\u00f2n l\u1ea1i xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng v\u1ebft l\u00f5m, l\u1ed7 r\u1ed7ng, sai h\u00ecnh d\u1ea1ng ho\u1eb7c \u1ee9ng su\u1ea5t d\u01b0.<\/p>\n<\/div>\n

Trong b\u00e0i vi\u1ebft n\u00e0y:<\/strong><\/p>\n

    \n
  1. X\u00e1c \u0111\u1ecbnh th\u1ebf n\u00e0o l\u00e0 l\u1ed7i quang h\u1ecdc<\/a><\/li>\n
  2. Theo d\u00f5i l\u1ecbch s\u1eed nhi\u1ec7t<\/a><\/li>\n
  3. Kh\u1edbp c\u1ed5ng r\u00f3t v\u1edbi th\u1ec3 t\u00edch<\/a><\/li>\n
  4. Gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng \u1ea9n<\/a><\/li>\n
  5. Ch\u1ea1y th\u1eed nghi\u1ec7m \u0111\u1ec3 t\u00e1ch bi\u1ec7t nguy\u00ean nh\u00e2n<\/a><\/li>\n
  6. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<\/ol>\n

    Tr\u01b0\u1edbc ti\u00ean h\u00e3y quy\u1ebft \u0111\u1ecbnh l\u1ed7i quang h\u1ecdc n\u00e0o l\u00e0 kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn<\/h2>\n

    \"thick-optical-part-acceptance-review\"<\/p>\n

    V\u1ecf trong su\u1ed1t, \u1ed1ng d\u1eabn s\u00e1ng, c\u1eeda s\u1ed5 quan s\u00e1t v\u00e0 th\u1ea5u k\u00ednh kh\u00f4ng c\u1ea7n c\u00f9ng m\u1ed9t k\u1ebft qu\u1ea3. M\u1ed9t chi ti\u1ebft c\u00f3 th\u1ec3 cho ph\u00e9p l\u1ed7 r\u1ed7ng b\u00ean trong n\u1eb1m ngo\u00e0i v\u00f9ng quan s\u00e1t; chi ti\u1ebft kh\u00e1c c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf m\u1ed9t nhi\u1ec5u x\u1ea1 nh\u1ecf kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y d\u01b0\u1edbi \u00e1nh s\u00e1ng ph\u00f2ng. X\u00e1c \u0111\u1ecbnh kh\u1ea9u \u0111\u1ed9 r\u00f5, h\u01b0\u1edbng quan s\u00e1t, chi\u1ebfu s\u00e1ng, n\u1ec1n v\u00e0 ki\u1ec3m tra quang h\u1ecdc ch\u1ee9c n\u0103ng tr\u01b0\u1edbc khi k\u1ebft lu\u1eadn r\u1eb1ng th\u00e0nh \u201cqu\u00e1 d\u00e0y\u201d.\u201d<\/p>\n

    T\u1eeb kh\u00f3a ch\u00ednh x\u00e1c \u0111\u00fac th\u00e0nh d\u00e0y m\u00f4 t\u1ea3 m\u1ed9t th\u00e1ch th\u1ee9c h\u00ecnh h\u1ecdc, kh\u00f4ng ph\u1ea3i m\u1ed9t c\u00f4ng th\u1ee9c x\u1eed l\u00fd \u0111\u01a1n l\u1ebb. Hai chi ti\u1ebft c\u00f3 c\u00f9ng ti\u1ebft di\u1ec7n t\u1ed1i \u0111a c\u00f3 th\u1ec3 h\u00e0nh x\u1eed kh\u00e1c nhau v\u00ec chi\u1ec1u d\u00e0i d\u00f2ng ch\u1ea3y, t\u1ef7 l\u1ec7 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t tr\u00ean th\u1ec3 t\u00edch, k\u1ebft n\u1ed1i c\u1ed5ng r\u00f3t v\u00e0 l\u00e0m ngu\u1ed9i khu\u00f4n c\u1ee7a ch\u00fang kh\u00e1c nhau. S\u1eed d\u1ee5ng b\u1ea3n \u0111\u1ed3 ti\u1ebft di\u1ec7n v\u00e0 v\u00f9ng quang h\u1ecdc thay v\u00ec m\u1ed9t con s\u1ed1 th\u00e0nh d\u00e0y t\u1ed1i \u0111a.<\/p>\n

    \u0110\u1ecdc khuy\u1ebft t\u1eadt nh\u01b0 m\u1ed9t l\u1ecbch s\u1eed nhi\u1ec7t<\/h2>\n

    \"cut-thick-part-showing-shrinkage-core\"<\/p>\n

    B\u00ean ngo\u00e0i c\u1ee7a m\u1ed9t ti\u1ebft di\u1ec7n trong su\u1ed1t d\u00e0y ti\u1ebfp x\u00fac v\u1edbi th\u00e9p ngu\u1ed9i h\u01a1n v\u00e0 \u0111\u00f4ng \u0111\u1eb7c tr\u01b0\u1edbc ph\u1ea7n trung t\u00e2m. N\u1ebfu l\u00f5i v\u1eabn n\u00f3ng ch\u1ea3y sau khi c\u1ed5ng r\u00f3t ng\u1eebng truy\u1ec1n \u00e1p su\u1ea5t, s\u1ef1 co r\u00fat ti\u1ebfp t\u1ee5c c\u00f3 th\u1ec3 k\u00e9o b\u1ec1 m\u1eb7t v\u00e0o trong ho\u1eb7c m\u1edf ra m\u1ed9t l\u1ed7 r\u1ed7ng b\u00ean trong. T\u0103ng \u00e1p su\u1ea5t n\u00e9n c\u00f3 th\u1ec3 gi\u1ea3m m\u1ed9t tri\u1ec7u ch\u1ee9ng nh\u01b0ng l\u1ea1i t\u0103ng \u1ee9ng su\u1ea5t \u0111\u1ecbnh h\u01b0\u1edbng ho\u1eb7c ba via \u1edf ch\u1ed7 kh\u00e1c.<\/p>\n

    M\u1ea5t c\u00e2n b\u1eb1ng l\u00e0m ngu\u1ed9i c\u0169ng c\u00f3 th\u1ec3 l\u00e0m cong b\u1ec1 m\u1eb7t quang h\u1ecdc. M\u1ed9t k\u00eanh n\u01b0\u1edbc g\u1ea7n m\u1ed9t b\u00ean v\u00e0 xa b\u00ean kia t\u1ea1o ra l\u1ecbch s\u1eed \u0111\u00f4ng \u0111\u1eb7c kh\u00e1c nhau. Ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc, l\u01b0u l\u01b0\u1ee3ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 th\u00e9p g\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng th\u1ef1c t\u1ebf\u2014kh\u00f4ng ch\u1ec9 \u0111i\u1ec3m \u0111\u1eb7t c\u1ee7a m\u00e1y. Nhi\u1ec7t \u0111\u1ed9 khu\u00f4n \u1ed5n \u0111\u1ecbnh \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong \u00c9p phun quang h\u1ecdc & trong su\u1ed1t<\/a>, n\u01a1i nh\u1eefng thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng nh\u1ecf l\u00e0m thay \u0111\u1ed5i h\u00e0nh vi \u00e1nh s\u00e1ng.<\/p>\n\n\n\n\n\n\n\n
    Tri\u1ec7u ch\u1ee9ng<\/th>\nC\u01a1 ch\u1ebf c\u00f3 kh\u1ea3 n\u0103ng c\u1ea7n ki\u1ec3m tra<\/th>\nB\u1eb1ng ch\u1ee9ng h\u1eefu \u00edch<\/th>\n<\/tr>\n<\/thead>\n
    V\u1ebft l\u00f5m b\u1ec1 m\u1eb7t<\/td>\nCo r\u00fat l\u00f5i kh\u00f4ng \u0111\u01b0\u1ee3c b\u00f9 tr\u1eeb<\/td>\nTr\u1ecdng l\u01b0\u1ee3ng chi ti\u1ebft so v\u1edbi th\u1eddi gian gi\u1eef \u00e1p<\/td>\n<\/tr>\n
    L\u1ed7 r\u1ed7ng d\u1ea1ng b\u1ecdt kh\u00ed b\u00ean trong<\/td>\nCh\u00e2n kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh co r\u00fat l\u00f5i<\/td>\nM\u1eabu c\u1eaft ho\u1eb7c qu\u00e9t<\/td>\n<\/tr>\n
    Hoa v\u0103n \u1ee9ng su\u1ea5t c\u00f3 m\u00e0u<\/td>\n\u0110\u1ecbnh h\u01b0\u1edbng ho\u1eb7c l\u00e0m ngu\u1ed9i kh\u00f4ng \u0111\u1ec1u<\/td>\nSo s\u00e1nh d\u01b0\u1edbi \u00e1nh s\u00e1ng ph\u00e2n c\u1ef1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    C\u1ed5ng r\u00f3t ph\u1ea3i duy tr\u00ec hi\u1ec7u qu\u1ea3 \u0111\u1ee7 l\u00e2u<\/h2>\n

    \"thick-section-gate-and-packing-path\"<\/p>\n

    C\u1ed5ng r\u00f3t \u0111\u00f4ng \u0111\u1eb7c s\u1edbm s\u1ebd c\u00f4 l\u1eadp v\u00f9ng d\u00e0y kh\u1ecfi \u00e1p su\u1ea5t n\u00e9n. C\u1ed5ng r\u00f3t l\u1edbn h\u01a1n c\u00f3 th\u1ec3 k\u00e9o d\u00e0i truy\u1ec1n \u00e1p su\u1ea5t, nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i v\u1ebft t\u00edch l\u1edbn h\u01a1n v\u00e0 k\u00e9o d\u00e0i th\u1eddi gian l\u00e0m ngu\u1ed9i. V\u1ecb tr\u00ed c\u1ed5ng r\u00f3t c\u0169ng ki\u1ec3m so\u00e1t h\u01b0\u1edbng d\u00f2ng ch\u1ea3y v\u00e0 \u1ee9ng su\u1ea5t. Vi\u1ec7c \u0111\u00e1nh gi\u00e1 ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t quang h\u1ecdc, chi\u1ec1u d\u00e0i d\u00f2ng ch\u1ea3y, truy\u1ec1n \u00e1p su\u1ea5t v\u00e0 th\u00e1o c\u1ed5ng r\u00f3t.<\/p>\n

    S\u1eed d\u1ee5ng nghi\u00ean c\u1ee9u tr\u1ecdng l\u01b0\u1ee3ng chi ti\u1ebft \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh khi n\u00e0o th\u1eddi gian gi\u1eef \u00e1p t\u0103ng th\u00eam kh\u00f4ng c\u00f2n l\u00e0m t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng. Sau \u0111\u00f3 ki\u1ec3m tra v\u1ebft l\u00f5m, c\u1ea5u tr\u00fac b\u00ean trong v\u00e0 hi\u1ec7u su\u1ea5t quang h\u1ecdc \u1edf c\u00e1c c\u00e0i \u0111\u1eb7t \u1ed5n \u0111\u1ecbnh. \u0110i\u1ec1u n\u00e0y ng\u0103n vi\u1ec7c t\u0103ng th\u1eddi gian chu k\u1ef3 sau khi c\u1ed5ng r\u00f3t \u0111\u00e3 \u0111\u00f4ng \u0111\u1eb7c.<\/p>\n

    Lo\u1ea1i b\u1ecf kh\u1ed1i l\u01b0\u1ee3ng tr\u01b0\u1edbc khi c\u1ed1 g\u1eafng x\u1eed l\u00fd xung quanh n\u00f3<\/h2>\n

    \"cored-and-solid-clear-part-comparison\"<\/p>\n

    N\u1ebfu ch\u1ee9c n\u0103ng quang h\u1ecdc cho ph\u00e9p, h\u00e3y kho\u00e9t r\u1ed7ng kh\u1ed1i l\u01b0\u1ee3ng \u1ea9n, t\u00e1ch m\u1eb7t quang h\u1ecdc kh\u1ecfi v\u1ecf k\u1ebft c\u1ea5u ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c g\u00e2n h\u1ed7 tr\u1ee3 m\u00e0 kh\u00f4ng t\u1ea1o th\u00eam m\u1ed1i n\u1ed1i n\u1eb7ng. Chuy\u1ec3n ti\u1ebfp d\u1ea7n d\u1ea7n d\u1ec5 \u0111i\u1ec1n \u0111\u1ea7y v\u00e0 l\u00e0m ngu\u1ed9i h\u01a1n so v\u1edbi thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t. M\u1ed9t g\u1edd d\u00e0y g\u1eafn v\u00e0o m\u1eb7t trong su\u1ed1t c\u00f3 th\u1ec3 in xuy\u00ean qua ngay c\u1ea3 khi b\u1ea3n th\u00e2n m\u1eb7t \u0111\u00f3 v\u1ec1 danh ngh\u0129a l\u00e0 \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n

    Kh\u00f4ng ph\u1ea3i m\u1ecdi v\u00f9ng d\u00e0y \u0111\u1ec1u c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf. M\u1ed9t th\u1ea5u k\u00ednh ho\u1eb7c k\u00ednh l\u00fap c\u00f3 th\u1ec3 y\u00eau c\u1ea7u th\u1ec3 t\u00edch c\u1ee7a n\u00f3. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, h\u00e3y \u0111\u1ecbnh v\u1ecb c\u1ed5ng phun v\u00e0 l\u00e0m ngu\u1ed9i xung quanh ch\u1ee9c n\u0103ng quang h\u1ecdc v\u00e0 ch\u1ea5p nh\u1eadn r\u1eb1ng th\u1eddi gian chu k\u1ef3 ph\u1ea3i b\u1ea3o v\u1ec7 ph\u1ea7n trung t\u00e2m, kh\u00f4ng ch\u1ec9 t\u1ea1o ra m\u1ed9t l\u1edbp v\u1ecf c\u1ee9ng.<\/p>\n

    Thay \u0111\u1ed5i t\u1eebng c\u01a1 ch\u1ebf m\u1ed9t trong c\u00e1c l\u1ea7n th\u1eed nghi\u1ec7m<\/h2>\n

    \"thick-part-process-trial-samples\"<\/p>\n

    T\u00e1ch bi\u1ec7t c\u00e1c hi\u1ec7u \u1ee9ng \u0111i\u1ec1n \u0111\u1ea7y, n\u00e9n v\u00e0 l\u00e0m ngu\u1ed9i. Tr\u01b0\u1edbc ti\u00ean x\u00e1c nh\u1eadn \u0111i\u1ec1n \u0111\u1ea7y c\u00e2n b\u1eb1ng v\u00e0 tho\u00e1t kh\u00ed. Ti\u1ebfp theo thi\u1ebft l\u1eadp h\u00e0nh vi \u0111\u00f4ng \u0111\u1eb7c c\u1ed5ng phun b\u1eb1ng d\u1eef li\u1ec7u tr\u1ecdng l\u01b0\u1ee3ng. Sau \u0111\u00f3 \u0111\u00e1nh gi\u00e1 th\u1eddi gian l\u00e0m ngu\u1ed9i v\u00e0 c\u00e2n b\u1eb1ng nhi\u1ec7t \u0111\u1ed9 khu\u00f4n. Ghi l\u1ea1i l\u00f4 nh\u1ef1a, s\u1ea5y kh\u00f4, nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y, \u0111\u1ec7m, v\u1ecb tr\u00ed chuy\u1ec3n ti\u1ebfp v\u00e0 \u0111i\u1ec1u ki\u1ec7n n\u01b0\u1edbc th\u1ef1c t\u1ebf \u0111\u1ec3 c\u00f3 th\u1ec3 t\u00e1i t\u1ea1o c\u1ea3i thi\u1ec7n v\u1ec1 m\u1eb7t th\u1ecb gi\u00e1c.<\/p>\n

    Ki\u1ec3m tra chi ti\u1ebft sau m\u1ed9t kho\u1ea3ng th\u1eddi gian \u1ed5n \u0111\u1ecbnh x\u00e1c \u0111\u1ecbnh. M\u1ed9t chi ti\u1ebft d\u00e0y c\u00f2n \u1ea5m c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c thay \u0111\u1ed5i sau khi \u0111\u1ea9y ra. H\u1ed3 s\u01a1 k\u00edch th\u01b0\u1edbc, th\u1ecb gi\u00e1c v\u00e0 quang h\u1ecdc t\u00e1ch bi\u1ec7t theo khoang khu\u00f4n gi\u00fap ph\u00e2n bi\u1ec7t s\u1ef1 thay \u0111\u1ed5i quy tr\u00ecnh v\u1edbi v\u1ea5n \u0111\u1ec1 d\u1ee5ng c\u1ee5 c\u1ee5c b\u1ed9.<\/p>\n

    \u0110o ph\u1ea7n trung t\u00e2m sau khi n\u00f3 \u0111\u00e3 ng\u1eebng thay \u0111\u1ed5i<\/h3>\n

    M\u1ed9t chi ti\u1ebft d\u00e0y c\u00f3 th\u1ec3 c\u00f3 l\u1edbp v\u1ecf ngo\u00e0i c\u1ee9ng trong khi ph\u1ea7n trung t\u00e2m v\u1eabn c\u00f2n \u1ea5m. \u0110o ngay l\u1eadp t\u1ee9c c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 th\u1ea5p hi\u1ec7n t\u01b0\u1ee3ng l\u00fan, cong v\u00eanh ho\u1eb7c thay \u0111\u1ed5i ti\u00eau c\u1ef1 sau n\u00e0y. \u0110\u1eb7t kho\u1ea3ng th\u1eddi gian \u1ed5n \u0111\u1ecbnh d\u1ef1a tr\u00ean kh\u1ed1i l\u01b0\u1ee3ng ti\u1ebft di\u1ec7n v\u00e0 lo\u1ea1i nh\u1ef1a, sau \u0111\u00f3 s\u1eed d\u1ee5ng c\u00f9ng kho\u1ea3ng th\u1eddi gian \u0111\u00f3 cho c\u00e1c l\u1ea7n th\u1eed nghi\u1ec7m v\u00e0 ph\u00ea duy\u1ec7t s\u1ea3n xu\u1ea5t. Khi s\u1ea3n ph\u1ea9m ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p d\u01b0\u1edbi t\u1ea3i tr\u1ecdng, h\u00e3y l\u1eb7p l\u1ea1i ki\u1ec3m tra quang h\u1ecdc quan tr\u1ecdng \u1edf tr\u1ea1ng th\u00e1i \u0111\u00f3.<\/p>\n

    D\u1eef li\u1ec7u b\u00e1o gi\u00e1 n\u00ean bao g\u1ed3m m\u00f4 h\u00ecnh 3D c\u00f3 m\u1eb7t c\u1eaft, c\u1ea5p nh\u1ef1a, v\u00f9ng quang h\u1ecdc, \u0111i\u1ec1u ki\u1ec7n quan s\u00e1t, c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m b\u00ean trong \u0111\u01b0\u1ee3c ph\u00e9p, s\u1ea3n l\u01b0\u1ee3ng h\u00e0ng n\u0103m v\u00e0 r\u00e0ng bu\u1ed9c th\u1eddi gian chu k\u1ef3 t\u1ed1i \u0111a. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p \u0111\u1ed9i ng\u0169 d\u1ee5ng c\u1ee5 so s\u00e1nh c\u00e1c ph\u01b0\u01a1ng \u00e1n kho\u00e9t r\u1ed7ng, c\u1ed5ng phun v\u00e0 l\u00e0m ngu\u1ed9i tr\u01b0\u1edbc khi h\u00ecnh h\u1ecdc chi ti\u1ebft \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh.<\/p>\n

    Tr\u01b0\u1edbc khi cam k\u1ebft ch\u1ebf t\u1ea1o d\u1ee5ng c\u1ee5, h\u00e3y h\u1ecfi li\u1ec7u ch\u1ee9c n\u0103ng quang h\u1ecdc c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng v\u1ecf m\u1ecfng h\u01a1n, th\u1ea5u k\u00ednh ri\u00eang bi\u1ec7t ho\u1eb7c hai th\u00e0nh ph\u1ea7n l\u1eafp r\u00e1p. Nh\u1eefng ph\u01b0\u01a1ng \u00e1n thay th\u1ebf n\u00e0y ph\u00e1t sinh chi ph\u00ed l\u1eafp r\u00e1p v\u00e0 giao di\u1ec7n, nh\u01b0ng ch\u00fang c\u00f3 th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian l\u00e0m ngu\u1ed9i, gi\u1ea3m nguy c\u01a1 r\u1ed7ng v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh quang h\u1ecdc. So s\u00e1nh t\u1ed5ng r\u1ee7i ro s\u1ea3n xu\u1ea5t thay v\u00ec ch\u1ec9 so s\u00e1nh gi\u00e1 d\u1ee5ng c\u1ee5.<\/p>\n

    C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

    \"engineer-examining-thick-clear-components\"<\/p>\n

    \u00c1p su\u1ea5t gi\u1eef cao h\u01a1n c\u00f3 lu\u00f4n lo\u1ea1i b\u1ecf hi\u1ec7n t\u01b0\u1ee3ng l\u00fan kh\u00f4ng?<\/h3>\n

    Kh\u00f4ng. N\u00f3 ch\u1ec9 gi\u00fap \u00edch khi \u00e1p su\u1ea5t ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c v\u00f9ng \u0111ang co ng\u00f3t. \u00c1p su\u1ea5t qu\u00e1 cao c\u00f3 th\u1ec3 t\u0103ng \u1ee9ng su\u1ea5t, t\u1ea1o ba via ho\u1eb7c g\u00e2y kh\u00f3 \u0111\u1ea9y ra.<\/p>\n

    R\u1ed7ng c\u00f3 ph\u1ea3i do kh\u00ed b\u1ecb gi\u1eef l\u1ea1i kh\u00f4ng?<\/h3>\n

    Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng v\u1eady. Trong ti\u1ebft di\u1ec7n d\u00e0y, n\u00f3 c\u00f3 th\u1ec3 l\u00e0 r\u1ed7ng do co ng\u00f3t. V\u1ecb tr\u00ed, h\u00ecnh d\u1ea1ng v\u00e0 m\u1ed1i quan h\u1ec7 v\u1edbi \u0111\u1ed9 d\u00e0y ti\u1ebft di\u1ec7n gi\u00fap ph\u00e2n bi\u1ec7t nguy\u00ean nh\u00e2n.<\/p>\n

    N\u00ean ch\u1ea5p nh\u1eadn theo th\u1ecb gi\u00e1c hay k\u00edch th\u01b0\u1edbc?<\/h3>\n

    Use both when the part has an optical function, and add a functional optical test where appearance cannot predict performance.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Thick wall molding becomes an optical problem when the section no longer cools, packs and shrinks uniformly. A clear part may leave the mold without a visible short shot yet develop sink, voids, haze, long cycle time, stress or dimensional drift. The correct response is not automatically more holding pressure. Geometry, gate freeze, thermal balance, […]<\/p>\n","protected":false},"author":1,"featured_media":3765,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3725","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\/3725","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=3725"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/posts\/3725\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/3765"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=3725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/categories?post=3725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/tags?post=3725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}