{"id":4273,"date":"2026-11-03T16:12:20","date_gmt":"2026-11-03T08:12:20","guid":{"rendered":"http:\/\/0"},"modified":"2026-11-03T10:48:57","modified_gmt":"2026-11-03T02:48:57","slug":"switching-resin-avoid-these-injection-molding-drift-trapsan-injection-molding-material-changeover-is-complete-only-when-the-new-resin-is-identified-the-old-material-is-cleared-from-the-melt-path-th","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/vi\/blog\/switching-resin-avoid-these-injection-molding-drift-trapsan-injection-molding-material-changeover-is-complete-only-when-the-new-resin-is-identified-the-old-material-is-cleared-from-the-melt-path-th\/","title":{"rendered":"Chuy\u1ec3n \u0111\u1ed5i Nh\u1ef1a? Tr\u00e1nh c\u00e1c B\u1eaby Tr\u00f4i \u00c9p Phun N\u00e0y"},"content":{"rendered":"

Vi\u1ec7c thay \u0111\u1ed5i v\u1eadt li\u1ec7u \u00e9p phun ch\u1ec9 ho\u00e0n t\u1ea5t khi nh\u1ef1a m\u1edbi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh, v\u1eadt li\u1ec7u c\u0169 \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch kh\u1ecfi \u0111\u01b0\u1eddng d\u1eabn n\u00f3ng ch\u1ea3y, v\u1eadt li\u1ec7u m\u1edbi \u1edf \u0111\u00fang \u0111i\u1ec1u ki\u1ec7n y\u00eau c\u1ea7u v\u00e0 c\u00e1c chi ti\u1ebft \u0111\u1ea7u ti\u00ean \u0111\u00e1p \u1ee9ng ti\u00eau ch\u00ed nghi\u1ec7m thu c\u1ee7a d\u1ef1 \u00e1n. Ch\u1ec9 thay \u0111\u1ed5i m\u00e0u ho\u1eb7c v\u00e0i l\u1ea7n x\u1ea3 l\u00e0m s\u1ea1ch kh\u00f4ng \u0111\u1ee7 ch\u1ee9ng minh r\u1eb1ng \u0111\u00e3 di\u1ec5n ra m\u1ed9t qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i \u1ed5n \u0111\u1ecbnh.<\/p>\n

R\u1ee7i ro l\u00e0 nhi\u1ec1u bi\u1ebfn s\u1ed1 thay \u0111\u1ed5i c\u00f9ng l\u00fac. M\u1ed9t m\u00e1c nh\u1ef1a m\u1edbi c\u00f3 th\u1ec3 c\u1ea7n c\u00e1ch x\u1eed l\u00fd ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n gia c\u00f4ng kh\u00e1c; nh\u1ef1a c\u00f2n s\u00f3t l\u1ea1i c\u00f3 th\u1ec3 l\u00e0m nhi\u1ec5m b\u1ea9n l\u1ea7n ch\u1ea1y ti\u1ebfp theo; v\u00e0 s\u1ef1 thay \u0111\u1ed5i v\u1ec1 m\u00e0u s\u1eafc ho\u1eb7c ch\u1ea5t gia c\u01b0\u1eddng c\u00f3 th\u1ec3 khi\u1ebfn khuy\u1ebft t\u1eadt kh\u00f3 ch\u1ea9n \u0111o\u00e1n h\u01a1n. H\u00e3y coi vi\u1ec7c thay \u0111\u1ed5i nh\u01b0 m\u1ed9t l\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i c\u00f3 ki\u1ec3m so\u00e1t v\u1edbi b\u01b0\u1edbc ki\u1ec3m tra ph\u00f3ng h\u00e0ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5, ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ed9t l\u1ea7n ho\u00e1n \u0111\u1ed5i v\u1eadt li\u1ec7u t\u00f9y ti\u1ec7n.<\/p>\n

Trong b\u00e0i vi\u1ebft n\u00e0y<\/h2>\n
    \n
  1. L\u1eadp b\u1ea3n \u0111\u1ed3 nh\u1eefng g\u00ec c\u00f2n l\u1ea1i trong \u0111\u01b0\u1eddng d\u1eabn n\u00f3ng ch\u1ea3y<\/a><\/li>\n
  2. Tr\u01b0\u1edbc khi thay \u0111\u1ed5i: x\u00e1c minh nh\u1ef1a<\/a><\/li>\n
  3. Trong khi thay \u0111\u1ed5i: ki\u1ec3m so\u00e1t vi\u1ec7c x\u1ea3 l\u00e0m s\u1ea1ch<\/a><\/li>\n
  4. Sau khi thay \u0111\u1ed5i: \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng c\u00e1c chi ti\u1ebft \u0111\u1ea7u ti\u00ean<\/a><\/li>\n
  5. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<\/ol>\n

    L\u1eadp b\u1ea3n \u0111\u1ed3 nh\u1eefng g\u00ec c\u00f2n l\u1ea1i trong \u0111\u01b0\u1eddng d\u1eabn n\u00f3ng ch\u1ea3y<\/h2>\n

    V\u1eadt li\u1ec7u t\u1ed3n d\u01b0 c\u00f3 th\u1ec3 c\u00f2n l\u1ea1i trong c\u1ed5 ph\u1ec5u, th\u00e2n xy-lanh, c\u00e1nh v\u00edt, v\u00f2i phun, b\u1ed9 chuy\u1ec3n ti\u1ebfp, hot runner ho\u1eb7c c\u00e1c \u0111i\u1ec3m ch\u1ebft trong khu\u00f4n. \u0110\u1ed9 d\u00e0i v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a \u0111\u01b0\u1eddng d\u1eabn n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u01b0\u1ee3ng v\u1eadt li\u1ec7u chuy\u1ec3n ti\u1ebfp c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ea9y ra v\u00e0 v\u1ecb tr\u00ed nhi\u1ec5m b\u1ea9n c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i. M\u1ed9t l\u1ea7n x\u1ea3 l\u00e0m s\u1ea1ch \u0111\u01a1n gi\u1ea3n t\u1ea1i v\u00f2i phun c\u00f3 th\u1ec3 kh\u00f4ng x\u1eed l\u00fd \u0111\u01b0\u1ee3c m\u1ecdi v\u1ecb tr\u00ed trong h\u1ec7 th\u1ed1ng hot runner.<\/p>\n

    H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi thi\u1ebft b\u1ecb th\u1ef1c t\u1ebf v\u00e0 tr\u00ecnh t\u1ef1 v\u1eadt li\u1ec7u. X\u00e1c \u0111\u1ecbnh lo\u1ea1i nh\u1ef1a \u0111ang ra v\u00e0 nh\u1ef1a \u0111ang v\u00e0o, li\u1ec7u ch\u00fang c\u00f3 kh\u00e1c nhau v\u1ec1 m\u00e0u s\u1eafc, polyme n\u1ec1n, ch\u1ea5t gia c\u01b0\u1eddng hay nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng, v\u00e0 nh\u1eefng b\u1ed9 ph\u1eadn n\u00e0o c\u1ea7n ki\u1ec3m tra ho\u1eb7c l\u00e0m s\u1ea1ch. Khuy\u1ebfn ngh\u1ecb v\u1ec1 v\u1eadt li\u1ec7u x\u1ea3 l\u00e0m s\u1ea1ch t\u01b0\u01a1ng th\u00edch ho\u1eb7c h\u01b0\u1edbng d\u1eabn v\u1ec1 nh\u1ef1a c\u1ee7a nh\u00e0 cung c\u1ea5p n\u00ean \u0111\u01b0\u1ee3c \u01b0u ti\u00ean h\u01a1n m\u1ed9t quy t\u1eafc chung chung.<\/p>\n

    \"Purged<\/figure>\n

    Nhi\u1ec5m b\u1ea9n kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng hi\u1ec7n r\u00f5 d\u01b0\u1edbi d\u1ea1ng v\u1ec7t m\u00e0u n\u1ed5i b\u1eadt. C\u00e1c \u0111\u1ed1m \u0111en ho\u1eb7c v\u1ebft b\u1ec1 m\u1eb7t ri\u00eang l\u1ebb c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u cho th\u1ea5y c\u1eb7n ho\u1eb7c v\u1eadt li\u1ec7u b\u1ecb ph\u00e2n h\u1ee7y v\u1eabn c\u00f2n trong \u0111\u01b0\u1eddng d\u1eabn gia c\u00f4ng; h\u00e3y s\u1eed d\u1ee5ng h\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c \u0111\u1ed1m \u0111en<\/a> khi xu\u1ea5t hi\u1ec7n tri\u1ec7u ch\u1ee9ng \u0111\u00f3, thay v\u00ec cho r\u1eb1ng m\u1ecdi \u0111\u1ed1m \u0111\u1ec1u \u0111\u1ebfn t\u1eeb nh\u1ef1a m\u1edbi.<\/p>\n

    Tr\u01b0\u1edbc khi thay \u0111\u1ed5i: x\u00e1c minh nh\u1ef1a<\/h2>\n

    Tr\u01b0\u1edbc khi n\u1ea1p v\u1eadt li\u1ec7u ti\u1ebfp theo, h\u00e3y so s\u00e1nh nh\u00e3n v\u00e0 gi\u1ea5y t\u1edd v\u1edbi b\u1ea3ng k\u00ea v\u1eadt li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t. X\u00e1c nh\u1eadn ch\u00ednh x\u00e1c m\u00e1c nh\u1ef1a, m\u00e0u s\u1eafc, ch\u1ea5t gia c\u01b0\u1eddng, m\u00e3 nh\u1eadn di\u1ec7n l\u00f4 v\u00e0 b\u1ea5t k\u1ef3 ph\u01b0\u01a1ng \u00e1n thay th\u1ebf n\u00e0o \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u00e1ch h\u00e0ng ph\u00ea duy\u1ec7t. C\u00e1c t\u00ean g\u1ecdi thu\u1ed9c c\u00f9ng m\u1ed9t h\u1ecd kh\u00f4ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u1ea3y, \u0111\u1ed9 co ng\u00f3t, ph\u1ea3n \u1ee9ng v\u1edbi \u0111\u1ed9 \u1ea9m ho\u1eb7c ngo\u1ea1i quan gi\u1ed1ng h\u1ec7t nhau.<\/p>\n