{"id":779,"date":"2026-03-26T09:04:40","date_gmt":"2026-03-26T09:04:40","guid":{"rendered":"https:\/\/ninhson-vn.com\/?p=779"},"modified":"2026-03-26T09:04:40","modified_gmt":"2026-03-26T09:04:40","slug":"loi-cham-den-tren-san-pham-nhua","status":"publish","type":"post","link":"https:\/\/ninhson-vn.com\/?p=779","title":{"rendered":"L\u1ed7i ch\u1ea5m \u0111en tr\u00ean s\u1ea3n ph\u1ea9m nh\u1ef1a"},"content":{"rendered":"<h1 data-section-id=\"gmknjt\" data-start=\"314\" data-end=\"390\">Black Speck (V\u1ebft \u0111en tr\u00ean s\u1ea3n ph\u1ea9m \u00e9p nh\u1ef1a): Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h1>\n<div class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 [&amp;:not(:first-child)]:mt-4\">\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-s-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/ilrorwxhpjmrll5p-static.micyjz.com\/cloud\/loBpiKrklrSRqkrljrplin\/Black-Spot-Brown-Streaks-in-Injection-Molding-__-Trouble-Shooting-in-Injection-Molding.jpg\" alt=\"https:\/\/ilrorwxhpjmrll5p-static.micyjz.com\/cloud\/loBpiKrklrSRqkrljrplin\/Black-Spot-Brown-Streaks-in-Injection-Molding-__-Trouble-Shooting-in-Injection-Molding.jpg\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)]\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/12ptKHinjection2.jpg%3Bwidth%3D860\" alt=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/12ptKHinjection2.jpg%3Bwidth%3D860\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-e-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/ilrorwxhpjmrll5p-static.micyjz.com\/cloud\/loBpiKrklrSRqkrljrmkin\/Black-Specks-_-Injection-Molding-Troubleshooting.jpg\" alt=\"https:\/\/ilrorwxhpjmrll5p-static.micyjz.com\/cloud\/loBpiKrklrSRqkrljrmkin\/Black-Specks-_-Injection-Molding-Troubleshooting.jpg\" \/><\/div>\n<div class=\"pointer-events-none absolute inset-x-2 bottom-2 z-0 flex max-w-[calc(100%-1rem)] flex-wrap items-end justify-end gap-1.5\">\n<div class=\"shrink-0\">\n<div class=\"flex items-center gap-1 rounded-full px-2 py-1.5 text-white backdrop-blur-md backdrop-brightness-75\"><span class=\"text-xs font-semibold\">4<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2 data-section-id=\"uamt1n\" data-start=\"434\" data-end=\"458\">1. Black Speck l\u00e0 g\u00ec?<\/h2>\n<p data-start=\"460\" data-end=\"590\"><strong data-start=\"460\" data-end=\"480\">Black Speck (BS)<\/strong> l\u00e0 l\u1ed7i ngo\u1ea1i quan trong \u00e9p nh\u1ef1a, xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng <strong data-start=\"534\" data-end=\"589\">ch\u1ea5m \u0111en ho\u1eb7c v\u1ec7t \u0111en nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m nh\u1ef1a<\/strong>.<\/p>\n<p data-start=\"592\" data-end=\"720\">C\u00e1c ch\u1ea5m \u0111en n\u00e0y th\u01b0\u1eddng l\u00e0 <strong data-start=\"619\" data-end=\"667\">nh\u1ef1a b\u1ecb ch\u00e1y, nh\u1ef1a b\u1ecb ph\u00e2n h\u1ee7y ho\u1eb7c t\u1ea1p ch\u1ea5t<\/strong> l\u1eabn v\u00e0o d\u00f2ng nh\u1ef1a n\u00f3ng ch\u1ea3y trong qu\u00e1 tr\u00ecnh \u00e9p phun.<\/p>\n<h3 data-section-id=\"3cws4q\" data-start=\"722\" data-end=\"754\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a l\u1ed7i Black Speck<\/h3>\n<ul data-start=\"756\" data-end=\"955\">\n<li data-section-id=\"1gihalw\" data-start=\"756\" data-end=\"805\">Xu\u1ea5t hi\u1ec7n <strong data-start=\"768\" data-end=\"805\">\u0111i\u1ec3m \u0111en nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m<\/strong><\/li>\n<li data-section-id=\"sggrco\" data-start=\"806\" data-end=\"846\">C\u00f3 th\u1ec3 n\u1eb1m <strong data-start=\"819\" data-end=\"846\">ri\u00eang l\u1ebb ho\u1eb7c th\u00e0nh c\u1ee5m<\/strong><\/li>\n<li data-section-id=\"19y71sq\" data-start=\"847\" data-end=\"898\">Th\u01b0\u1eddng th\u1ea5y \u1edf <strong data-start=\"863\" data-end=\"898\">s\u1ea3n ph\u1ea9m nh\u1ef1a k\u1ef9 thu\u1eadt m\u00e0u s\u00e1ng<\/strong><\/li>\n<li data-section-id=\"yqtkl2\" data-start=\"899\" data-end=\"955\">L\u00e0m <strong data-start=\"905\" data-end=\"955\">gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng ngo\u1ea1i quan v\u00e0 gi\u00e1 tr\u1ecb s\u1ea3n ph\u1ea9m<\/strong><\/li>\n<\/ul>\n<p data-start=\"957\" data-end=\"997\">L\u1ed7i n\u00e0y ph\u1ed5 bi\u1ebfn trong c\u00e1c v\u1eadt li\u1ec7u nh\u01b0:<\/p>\n<ul data-start=\"999\" data-end=\"1037\">\n<li data-section-id=\"1mq0f2z\" data-start=\"999\" data-end=\"1014\">POM (Duracon)<\/li>\n<li data-section-id=\"1o4omm\" data-start=\"1015\" data-end=\"1020\">PBT<\/li>\n<li data-section-id=\"1o4oaj\" data-start=\"1021\" data-end=\"1026\">PPS<\/li>\n<li data-section-id=\"1o47yv\" data-start=\"1027\" data-end=\"1032\">LCP<\/li>\n<li data-section-id=\"yhmu2h\" data-start=\"1033\" data-end=\"1037\">PA<\/li>\n<\/ul>\n<hr data-start=\"1039\" data-end=\"1042\" \/>\n<h1 data-section-id=\"11uvpfp\" data-start=\"1044\" data-end=\"1083\">2. Nguy\u00ean nh\u00e2n g\u00e2y ra l\u1ed7i Black Speck<\/h1>\n<h2 data-section-id=\"1hgqcl1\" data-start=\"1085\" data-end=\"1143\">2.1 Ph\u00e2n h\u1ee7y nh\u1ef1a do nhi\u1ec7t \u0111\u1ed9 cao (Resin Decomposition)<\/h2>\n<div class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 [&amp;:not(:first-child)]:mt-4\">\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-s-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/www.asahi-kasei.co.jp\/asaclean\/en\/images\/why-asaclean\/image_why1_1.jpg\" alt=\"https:\/\/www.asahi-kasei.co.jp\/asaclean\/en\/images\/why-asaclean\/image_why1_1.jpg\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)]\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/brand\/PT\/2018-PT\/pt1018-tipsscrewwearfig5-edited.jpg\" alt=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/brand\/PT\/2018-PT\/pt1018-tipsscrewwearfig5-edited.jpg\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-e-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/brand\/PT\/2018-PT\/PT1018-KHInjection-FIG1.jpg%3BmaxWidth%3D1200\" alt=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/brand\/PT\/2018-PT\/PT1018-KHInjection-FIG1.jpg%3BmaxWidth%3D1200\" \/><\/div>\n<div class=\"pointer-events-none absolute inset-x-2 bottom-2 z-0 flex max-w-[calc(100%-1rem)] flex-wrap items-end justify-end gap-1.5\">\n<div class=\"shrink-0\">\n<div class=\"flex items-center gap-1 rounded-full px-2 py-1.5 text-white backdrop-blur-md backdrop-brightness-75\"><span class=\"text-xs font-semibold\">4<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p data-start=\"1187\" data-end=\"1301\">Nguy\u00ean li\u1ec7u nh\u1ef1a l\u00e0 <strong data-start=\"1207\" data-end=\"1227\">h\u1ee3p ch\u1ea5t polymer<\/strong>, c\u00f3 th\u1ec3 <strong data-start=\"1236\" data-end=\"1300\">b\u1ecb ph\u00e2n h\u1ee7y khi nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 cho ph\u00e9p<\/strong>.<\/p>\n<p data-start=\"1303\" data-end=\"1349\">Khi nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c th\u1eddi gian gia nhi\u1ec7t qu\u00e1 l\u00e2u:<\/p>\n<ul data-start=\"1351\" data-end=\"1473\">\n<li data-section-id=\"1f0lgxc\" data-start=\"1351\" data-end=\"1377\">Nh\u1ef1a b\u1eaft \u0111\u1ea7u <strong data-start=\"1366\" data-end=\"1377\">oxy h\u00f3a<\/strong><\/li>\n<li data-section-id=\"tgl4hg\" data-start=\"1378\" data-end=\"1425\">Sau \u0111\u00f3 <strong data-start=\"1387\" data-end=\"1425\">chuy\u1ec3n th\u00e0nh d\u1ea1ng nh\u1ef1a \u0111\u01b0\u1eddng (tar)<\/strong><\/li>\n<li data-section-id=\"126wpam\" data-start=\"1426\" data-end=\"1473\">Cu\u1ed1i c\u00f9ng <strong data-start=\"1438\" data-end=\"1473\">b\u1ecb carbon h\u00f3a (ch\u00e1y th\u00e0nh than)<\/strong><\/li>\n<\/ul>\n<p data-start=\"1475\" data-end=\"1560\">Nh\u1eefng m\u1ea3nh nh\u1ef1a ch\u00e1y n\u00e0y khi b\u1ecb \u0111\u1ea9y v\u00e0o khu\u00f4n s\u1ebd t\u1ea1o th\u00e0nh <strong data-start=\"1534\" data-end=\"1559\">v\u1ebft \u0111en tr\u00ean s\u1ea3n ph\u1ea9m<\/strong>.<\/p>\n<h3 data-section-id=\"1esmegm\" data-start=\"1562\" data-end=\"1597\">C\u00e1c v\u1ecb tr\u00ed d\u1ec5 t\u00edch t\u1ee5 nh\u1ef1a ch\u00e1y<\/h3>\n<p data-start=\"1599\" data-end=\"1665\">M\u1ed9t s\u1ed1 khu v\u1ef1c trong h\u1ec7 th\u1ed1ng nh\u1ef1a n\u00f3ng d\u1ec5 b\u1ecb <strong data-start=\"1645\" data-end=\"1664\">\u1ee9 \u0111\u1ecdng v\u1eadt li\u1ec7u<\/strong>:<\/p>\n<ul data-start=\"1667\" data-end=\"1756\">\n<li data-section-id=\"u3xsx7\" data-start=\"1667\" data-end=\"1703\">Check Ring (v\u00f2ng ch\u1ed1ng ch\u1ea3y ng\u01b0\u1ee3c)<\/li>\n<li data-section-id=\"159e5ow\" data-start=\"1704\" data-end=\"1719\">R\u00e3nh tr\u1ee5c v\u00edt<\/li>\n<li data-section-id=\"1nep7qu\" data-start=\"1720\" data-end=\"1737\">Khe h\u1edf tr\u1ee5c v\u00edt<\/li>\n<li data-section-id=\"1i9qggv\" data-start=\"1738\" data-end=\"1747\">Adapter<\/li>\n<li data-section-id=\"1t1nklc\" data-start=\"1748\" data-end=\"1756\">Nozzle<\/li>\n<\/ul>\n<p data-start=\"1758\" data-end=\"1852\">Khi nh\u1ef1a b\u1ecb gi\u1eef l\u1ea1i l\u00e2u t\u1ea1i c\u00e1c v\u1ecb tr\u00ed n\u00e0y, nguy c\u01a1 <strong data-start=\"1810\" data-end=\"1842\">ch\u00e1y nh\u1ef1a v\u00e0 t\u1ea1o Black Speck<\/strong> t\u0103ng l\u00ean.<\/p>\n<hr data-start=\"1854\" data-end=\"1857\" \/>\n<h2 data-section-id=\"1oub8tf\" data-start=\"1859\" data-end=\"1913\">2.2 Purging nh\u1ef1a kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7 (Shortage of Purging)<\/h2>\n<p data-start=\"1915\" data-end=\"1999\"><strong data-start=\"1915\" data-end=\"1945\">Purging (x\u1ea3 nh\u1ef1a l\u00e0m s\u1ea1ch)<\/strong> kh\u00f4ng \u0111\u1ee7 l\u00e0 nguy\u00ean nh\u00e2n r\u1ea5t ph\u1ed5 bi\u1ebfn g\u00e2y Black Speck.<\/p>\n<p data-start=\"2001\" data-end=\"2017\">Trong qu\u00e1 tr\u00ecnh:<\/p>\n<ul data-start=\"2019\" data-end=\"2064\">\n<li data-section-id=\"im8v9n\" data-start=\"2019\" data-end=\"2033\">\u0111\u1ed5i m\u00e0u nh\u1ef1a<\/li>\n<li data-section-id=\"xhz9bx\" data-start=\"2034\" data-end=\"2048\">\u0111\u1ed5i v\u1eadt li\u1ec7u<\/li>\n<li data-section-id=\"wwzbyw\" data-start=\"2049\" data-end=\"2064\">\u0111\u1ed5i lo\u1ea1i nh\u1ef1a<\/li>\n<\/ul>\n<p data-start=\"2066\" data-end=\"2130\">N\u1ebfu l\u01b0\u1ee3ng purging kh\u00f4ng \u0111\u1ee7, <strong data-start=\"2094\" data-end=\"2126\">nh\u1ef1a c\u0169 c\u00f2n l\u1ea1i trong xilanh<\/strong> s\u1ebd:<\/p>\n<ul data-start=\"2132\" data-end=\"2191\">\n<li data-section-id=\"18i5p89\" data-start=\"2132\" data-end=\"2156\">b\u1ecb nung n\u00f3ng nhi\u1ec1u l\u1ea7n<\/li>\n<li data-section-id=\"1ho2edm\" data-start=\"2157\" data-end=\"2167\">ph\u00e2n h\u1ee7y<\/li>\n<li data-section-id=\"1yvrvm7\" data-start=\"2168\" data-end=\"2191\">t\u1ea1o th\u00e0nh <strong data-start=\"2180\" data-end=\"2191\">h\u1ea1t \u0111en<\/strong><\/li>\n<\/ul>\n<p data-start=\"2193\" data-end=\"2272\">\u0110\u1eb7c bi\u1ec7t khi chuy\u1ec3n gi\u1eefa <strong data-start=\"2218\" data-end=\"2245\">c\u00e1c lo\u1ea1i nh\u1ef1a kh\u00e1c nhau<\/strong>, vi\u1ec7c purging c\u00e0ng kh\u00f3 do:<\/p>\n<ul data-start=\"2274\" data-end=\"2365\">\n<li data-section-id=\"1fcx7t6\" data-start=\"2274\" data-end=\"2304\">nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y kh\u00e1c nhau<\/li>\n<li data-section-id=\"1g86kel\" data-start=\"2305\" data-end=\"2334\">nhi\u1ec7t \u0111\u1ed9 ph\u00e2n h\u1ee7y kh\u00e1c nhau<\/li>\n<li data-section-id=\"5svoav\" data-start=\"2335\" data-end=\"2365\">\u0111\u1ed9 t\u01b0\u01a1ng th\u00edch v\u1eadt li\u1ec7u th\u1ea5p<\/li>\n<\/ul>\n<hr data-start=\"2367\" data-end=\"2370\" \/>\n<h2 data-section-id=\"1vb93mz\" data-start=\"2372\" data-end=\"2425\">2.3 L\u1eabn t\u1ea1p ch\u1ea5t trong nguy\u00ean li\u1ec7u (Contamination)<\/h2>\n<p data-start=\"2427\" data-end=\"2491\">M\u1ed9t nguy\u00ean nh\u00e2n kh\u00e1c l\u00e0 <strong data-start=\"2451\" data-end=\"2490\">t\u1ea1p ch\u1ea5t l\u1eabn trong nguy\u00ean li\u1ec7u nh\u1ef1a<\/strong>.<\/p>\n<p data-start=\"2493\" data-end=\"2528\">C\u00e1c ngu\u1ed3n g\u00e2y nhi\u1ec5m b\u1ea9n th\u01b0\u1eddng g\u1eb7p:<\/p>\n<h3 data-section-id=\"1lxgq3p\" data-start=\"2530\" data-end=\"2558\">1. Nh\u1ef1a kh\u00e1c lo\u1ea1i b\u1ecb l\u1eabn<\/h3>\n<p data-start=\"2560\" data-end=\"2627\">N\u1ebfu m\u1ed9t lo\u1ea1i nh\u1ef1a c\u00f3 <strong data-start=\"2581\" data-end=\"2611\">nhi\u1ec7t \u0111\u1ed9 ph\u00e2n h\u1ee7y th\u1ea5p h\u01a1n<\/strong> l\u1eabn v\u00e0o hopper:<\/p>\n<p data-start=\"2629\" data-end=\"2686\">\u2192 n\u00f3 s\u1ebd ch\u00e1y tr\u01b0\u1edbc<br data-start=\"2647\" data-end=\"2650\" \/><br \/>\n\u2192 t\u1ea1o ra <strong data-start=\"2659\" data-end=\"2686\">ch\u1ea5m \u0111en trong s\u1ea3n ph\u1ea9m<\/strong><\/p>\n<h3 data-section-id=\"12bbhb8\" data-start=\"2688\" data-end=\"2717\">2. Nh\u1ef1a t\u00e1i ch\u1ebf (Regrind)<\/h3>\n<p data-start=\"2719\" data-end=\"2731\">Nh\u1ef1a t\u00e1i \u0111\u00e3:<\/p>\n<ul data-start=\"2733\" data-end=\"2784\">\n<li data-section-id=\"qhdgcy\" data-start=\"2733\" data-end=\"2753\">tr\u1ea3i qua gia nhi\u1ec7t<\/li>\n<li data-section-id=\"11cb2nv\" data-start=\"2754\" data-end=\"2784\">c\u00f3 c\u1ea5u tr\u00fac polymer suy gi\u1ea3m<\/li>\n<\/ul>\n<p data-start=\"2786\" data-end=\"2832\">Do \u0111\u00f3 <strong data-start=\"2792\" data-end=\"2831\">d\u1ec5 b\u1ecb ph\u00e2n h\u1ee7y h\u01a1n nh\u1ef1a nguy\u00ean sinh<\/strong>.<\/p>\n<h3 data-section-id=\"1opxy9p\" data-start=\"2834\" data-end=\"2867\">3. T\u1ea1p ch\u1ea5t kim lo\u1ea1i ho\u1eb7c b\u1ee5i<\/h3>\n<p data-start=\"2869\" data-end=\"2885\">Trong qu\u00e1 tr\u00ecnh:<\/p>\n<ul data-start=\"2887\" data-end=\"2923\">\n<li data-section-id=\"9wmz6h\" data-start=\"2887\" data-end=\"2900\">nghi\u1ec1n nh\u1ef1a<\/li>\n<li data-section-id=\"1wnz1x3\" data-start=\"2901\" data-end=\"2913\">v\u1eadn chuy\u1ec3n<\/li>\n<li data-section-id=\"171hrbc\" data-start=\"2914\" data-end=\"2923\">l\u01b0u tr\u1eef<\/li>\n<\/ul>\n<p data-start=\"2925\" data-end=\"2983\">kim lo\u1ea1i nh\u1ecf ho\u1eb7c b\u1ee5i b\u1ea9n c\u00f3 th\u1ec3 x\u00e2m nh\u1eadp v\u00e0o nguy\u00ean li\u1ec7u.<\/p>\n<hr data-start=\"2985\" data-end=\"2988\" \/>\n<h1 data-section-id=\"1hpncnw\" data-start=\"2990\" data-end=\"3030\">3. Gi\u1ea3i ph\u00e1p kh\u1eafc ph\u1ee5c l\u1ed7i Black Speck<\/h1>\n<h2 data-section-id=\"grj819\" data-start=\"3032\" data-end=\"3062\">3.1 Purging xilanh tri\u1ec7t \u0111\u1ec3<\/h2>\n<div class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 [&amp;:not(:first-child)]:mt-4\">\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-s-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/0816ptKHinjection.jpg\" alt=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/0816ptKHinjection.jpg\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)]\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/brand\/pt\/2020-pt\/0920ptpurging-landscape_wide.jpg\" alt=\"https:\/\/d2n4wb9orp1vta.cloudfront.net\/cms\/brand\/pt\/2020-pt\/0920ptpurging-landscape_wide.jpg\" \/><\/div>\n<\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-e-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div><img decoding=\"async\" class=\"bg-token-main-surface-tertiary m-0 h-full w-full object-cover\" src=\"https:\/\/images.openai.com\/static-rsc-1\/xsnENPW_u9My-1uxqodyoEaai_KaNVWOAPm08cI9x4IJevRNBzkppm-sMIbUfd6L76R8ylTeedUFG-rxKpFFDhfqZU7xSpYYtz8X1DFjsTlqnshZfaTdZSyUkEfVa_5D_bbIoEHmRTetzXHgDqJgAA\" alt=\"https:\/\/www.greatcentralplastics.com\/img\/asset\/YXNzZXRzL3B1cmdlLWdyYXBoaWMtKDEpLmpwZw%3D%3D?p=lg&amp;s=613404c1743d44a7e7cbbd0bfacf2676\" \/><\/div>\n<div class=\"pointer-events-none absolute inset-x-2 bottom-2 z-0 flex max-w-[calc(100%-1rem)] flex-wrap items-end justify-end gap-1.5\">\n<div class=\"shrink-0\">\n<div class=\"flex items-center gap-1 rounded-full px-2 py-1.5 text-white backdrop-blur-md backdrop-brightness-75\"><span class=\"text-xs font-semibold\">4<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p data-start=\"3106\" data-end=\"3200\">Khi ph\u00e1t hi\u1ec7n Black Speck, <strong data-start=\"3133\" data-end=\"3199\">b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean c\u1ea7n th\u1ef1c hi\u1ec7n l\u00e0 purging ho\u00e0n to\u00e0n h\u1ec7 th\u1ed1ng nh\u1ef1a<\/strong>.<\/p>\n<p data-start=\"3202\" data-end=\"3263\">V\u00ec ph\u1ea7n l\u1edbn Black Speck <strong data-start=\"3226\" data-end=\"3262\">\u0111\u00e3 t\u1ed3n t\u1ea1i trong xilanh tr\u01b0\u1edbc \u0111\u00f3<\/strong>.<\/p>\n<h3 data-section-id=\"1nsvawp\" data-start=\"3265\" data-end=\"3289\">C\u00e1c b\u01b0\u1edbc khuy\u1ebfn ngh\u1ecb<\/h3>\n<ol data-start=\"3291\" data-end=\"3434\">\n<li data-section-id=\"x53uat\" data-start=\"3291\" data-end=\"3314\">T\u0103ng t\u1ed1c \u0111\u1ed9 tr\u1ee5c v\u00edt<\/li>\n<li data-section-id=\"1gfix93\" data-start=\"3315\" data-end=\"3335\">Purging nhi\u1ec1u l\u1ea7n<\/li>\n<li data-section-id=\"1tkw7ib\" data-start=\"3336\" data-end=\"3375\">S\u1eed d\u1ee5ng <strong data-start=\"3347\" data-end=\"3375\">nh\u1ef1a purging chuy\u00ean d\u1ee5ng<\/strong><\/li>\n<li data-section-id=\"16h87ih\" data-start=\"3376\" data-end=\"3434\">Ki\u1ec3m tra \u0111\u1ebfn khi <strong data-start=\"3396\" data-end=\"3434\">kh\u00f4ng c\u00f2n t\u1ea1p ch\u1ea5t trong d\u00f2ng nh\u1ef1a<\/strong><\/li>\n<\/ol>\n<p data-start=\"3436\" data-end=\"3494\">N\u1ebfu kh\u00f4ng purging tri\u1ec7t \u0111\u1ec3, <strong data-start=\"3464\" data-end=\"3493\">l\u1ed7i s\u1ebd ti\u1ebfp t\u1ee5c xu\u1ea5t hi\u1ec7n<\/strong>.<\/p>\n<hr data-start=\"3496\" data-end=\"3499\" \/>\n<h2 data-section-id=\"po5grd\" data-start=\"3501\" data-end=\"3535\">3.2 Gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng nh\u1ef1a<\/h2>\n<p data-start=\"3537\" data-end=\"3587\">M\u1ed7i lo\u1ea1i nh\u1ef1a c\u00f3 <strong data-start=\"3554\" data-end=\"3586\">nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng ti\u00eau chu\u1ea9n<\/strong>.<\/p>\n<p data-start=\"3589\" data-end=\"3610\">N\u1ebfu nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao:<\/p>\n<ul data-start=\"3612\" data-end=\"3661\">\n<li data-section-id=\"1ppjz7p\" data-start=\"3612\" data-end=\"3629\">nh\u1ef1a d\u1ec5 b\u1ecb ch\u00e1y<\/li>\n<li data-section-id=\"id80zl\" data-start=\"3630\" data-end=\"3642\">t\u1ea1o carbon<\/li>\n<li data-section-id=\"1ounafx\" data-start=\"3643\" data-end=\"3661\">sinh Black Speck<\/li>\n<\/ul>\n<h3 data-section-id=\"jessw6\" data-start=\"3663\" data-end=\"3700\">V\u00ed d\u1ee5 nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng tham kh\u1ea3o<\/h3>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"3702\" data-end=\"3867\">\n<thead data-start=\"3702\" data-end=\"3734\">\n<tr data-start=\"3702\" data-end=\"3734\">\n<th class=\"\" data-start=\"3702\" data-end=\"3713\" data-col-size=\"sm\">V\u1eadt li\u1ec7u<\/th>\n<th class=\"\" data-start=\"3713\" data-end=\"3734\" data-col-size=\"sm\">Nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3745\" data-end=\"3867\">\n<tr data-start=\"3745\" data-end=\"3776\">\n<td data-start=\"3745\" data-end=\"3761\" data-col-size=\"sm\">Duracon (POM)<\/td>\n<td data-col-size=\"sm\" data-start=\"3761\" data-end=\"3776\">190 \u2013 210\u00b0C<\/td>\n<\/tr>\n<tr data-start=\"3777\" data-end=\"3808\">\n<td data-start=\"3777\" data-end=\"3793\" data-col-size=\"sm\">Duranex (PBT)<\/td>\n<td data-col-size=\"sm\" data-start=\"3793\" data-end=\"3808\">240 \u2013 260\u00b0C<\/td>\n<\/tr>\n<tr data-start=\"3809\" data-end=\"3837\">\n<td data-start=\"3809\" data-end=\"3822\" data-col-size=\"sm\">Vectra LCP<\/td>\n<td data-col-size=\"sm\" data-start=\"3822\" data-end=\"3837\">290 \u2013 350\u00b0C<\/td>\n<\/tr>\n<tr data-start=\"3838\" data-end=\"3867\">\n<td data-start=\"3838\" data-end=\"3852\" data-col-size=\"sm\">Fortron PPS<\/td>\n<td data-col-size=\"sm\" data-start=\"3852\" data-end=\"3867\">300 \u2013 330\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-start=\"3869\" data-end=\"3875\">L\u01b0u \u00fd:<\/p>\n<p data-start=\"3877\" data-end=\"3966\">Nhi\u1ec7t \u0111\u1ed9 hi\u1ec3n th\u1ecb tr\u00ean m\u00e1y <strong data-start=\"3904\" data-end=\"3930\">ch\u1ec9 l\u00e0 nhi\u1ec7t \u0111\u1ed9 sensor<\/strong>, kh\u00f4ng ph\u1ea3i nhi\u1ec7t \u0111\u1ed9 th\u1ef1c c\u1ee7a nh\u1ef1a.<\/p>\n<p data-start=\"3968\" data-end=\"4021\">Do \u0111\u00f3 n\u00ean <strong data-start=\"3978\" data-end=\"4020\">\u0111o nhi\u1ec7t \u0111\u1ed9 nh\u1ef1a th\u1ef1c t\u1ebf khi c\u1ea7n thi\u1ebft<\/strong>.<\/p>\n<hr data-start=\"4023\" data-end=\"4026\" \/>\n<h2 data-section-id=\"1xnffon\" data-start=\"4028\" data-end=\"4071\">3.3 Gi\u1ea3m th\u1eddi gian l\u01b0u nh\u1ef1a trong xilanh<\/h2>\n<p data-start=\"4073\" data-end=\"4160\">Ngay c\u1ea3 khi nhi\u1ec7t \u0111\u1ed9 \u0111\u00fang ti\u00eau chu\u1ea9n, <strong data-start=\"4111\" data-end=\"4159\">th\u1eddi gian l\u01b0u qu\u00e1 l\u00e2u c\u0169ng g\u00e2y ph\u00e2n h\u1ee7y nh\u1ef1a<\/strong>.<\/p>\n<p data-start=\"4162\" data-end=\"4176\">C\u00e1c gi\u1ea3i ph\u00e1p:<\/p>\n<ul data-start=\"4178\" data-end=\"4291\">\n<li data-section-id=\"7sn182\" data-start=\"4178\" data-end=\"4219\">s\u1eed d\u1ee5ng <strong data-start=\"4188\" data-end=\"4219\">m\u00e1y \u00e9p c\u00f3 dung t\u00edch ph\u00f9 h\u1ee3p<\/strong><\/li>\n<li data-section-id=\"1tcslbq\" data-start=\"4220\" data-end=\"4245\">tr\u00e1nh ch\u1ea1y shot qu\u00e1 nh\u1ecf<\/li>\n<li data-section-id=\"9fslqj\" data-start=\"4246\" data-end=\"4291\">gi\u1ea3m th\u1eddi gian d\u1eebng m\u00e1y khi xilanh c\u00f2n nh\u1ef1a<\/li>\n<\/ul>\n<p data-start=\"4293\" data-end=\"4319\">Th\u1eddi gian l\u01b0u qu\u00e1 d\u00e0i l\u00e0m:<\/p>\n<ul data-start=\"4321\" data-end=\"4379\">\n<li data-section-id=\"1g6904q\" data-start=\"4321\" data-end=\"4335\">nh\u1ef1a oxy h\u00f3a<\/li>\n<li data-section-id=\"1g738lj\" data-start=\"4336\" data-end=\"4354\">polymer suy gi\u1ea3m<\/li>\n<li data-section-id=\"1qbaq63\" data-start=\"4355\" data-end=\"4379\">xu\u1ea5t hi\u1ec7n Black Speck.<\/li>\n<\/ul>\n<hr data-start=\"4381\" data-end=\"4384\" \/>\n<h2 data-section-id=\"1ho3m5c\" data-start=\"4386\" data-end=\"4429\">3.4 Ki\u1ec3m so\u00e1t t\u1ea1p ch\u1ea5t trong nguy\u00ean li\u1ec7u<\/h2>\n<p data-start=\"4431\" data-end=\"4468\">\u0110\u1ec3 h\u1ea1n ch\u1ebf Black Speck c\u1ea7n ki\u1ec3m so\u00e1t:<\/p>\n<h3 data-section-id=\"wp6p1a\" data-start=\"4470\" data-end=\"4513\">Ki\u1ec3m tra nguy\u00ean li\u1ec7u tr\u01b0\u1edbc khi c\u1ea5p li\u1ec7u<\/h3>\n<ul data-start=\"4515\" data-end=\"4571\">\n<li data-section-id=\"135yzwo\" data-start=\"4515\" data-end=\"4536\">kh\u00f4ng l\u1eabn nh\u1ef1a kh\u00e1c<\/li>\n<li data-section-id=\"hm9n42\" data-start=\"4537\" data-end=\"4556\">kh\u00f4ng c\u00f3 kim lo\u1ea1i<\/li>\n<li data-section-id=\"cjqxig\" data-start=\"4557\" data-end=\"4571\">kh\u00f4ng c\u00f3 b\u1ee5i<\/li>\n<\/ul>\n<h3 data-section-id=\"16lormx\" data-start=\"4573\" data-end=\"4595\">Ki\u1ec3m so\u00e1t nh\u1ef1a t\u00e1i<\/h3>\n<ul data-start=\"4597\" data-end=\"4679\">\n<li data-section-id=\"1a3dx0a\" data-start=\"4597\" data-end=\"4621\">gi\u1edbi h\u1ea1n t\u1ef7 l\u1ec7 regrind<\/li>\n<li data-section-id=\"tfb6vk\" data-start=\"4622\" data-end=\"4650\">ki\u1ec3m tra t\u1ea1p ch\u1ea5t b\u1eb1ng m\u1eaft<\/li>\n<li data-section-id=\"1jx07he\" data-start=\"4651\" data-end=\"4679\">s\u00e0ng l\u1ecdc tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng<\/li>\n<\/ul>\n<hr data-start=\"4681\" data-end=\"4684\" \/>\n<h1 data-section-id=\"17lds9y\" data-start=\"4686\" data-end=\"4699\">4. K\u1ebft lu\u1eadn<\/h1>\n<p data-start=\"4701\" data-end=\"4787\"><strong data-start=\"4701\" data-end=\"4726\">Black Speck (v\u1ebft \u0111en)<\/strong> l\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn trong s\u1ea3n xu\u1ea5t \u00e9p nh\u1ef1a, th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb:<\/p>\n<ul data-start=\"4789\" data-end=\"4870\">\n<li data-section-id=\"10r7qt\" data-start=\"4789\" data-end=\"4807\">nh\u1ef1a b\u1ecb ph\u00e2n h\u1ee7y<\/li>\n<li data-section-id=\"1c1s0mo\" data-start=\"4808\" data-end=\"4826\">purging kh\u00f4ng \u0111\u1ee7<\/li>\n<li data-section-id=\"17b3uke\" data-start=\"4827\" data-end=\"4841\">l\u1eabn t\u1ea1p ch\u1ea5t<\/li>\n<li data-section-id=\"v7x8ww\" data-start=\"4842\" data-end=\"4870\">th\u1eddi gian l\u01b0u nh\u1ef1a qu\u00e1 l\u00e2u<\/li>\n<\/ul>\n<p data-start=\"4872\" data-end=\"4898\">\u0110\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7u qu\u1ea3 c\u1ea7n:<\/p>\n<ul data-start=\"4900\" data-end=\"5023\">\n<li data-section-id=\"858oub\" data-start=\"4900\" data-end=\"4934\">Purging h\u1ec7 th\u1ed1ng nh\u1ef1a k\u1ef9 l\u01b0\u1ee1ng<\/li>\n<li data-section-id=\"1mhaiq0\" data-start=\"4935\" data-end=\"4966\">Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 gia c\u00f4ng<\/li>\n<li data-section-id=\"14ec3dq\" data-start=\"4967\" data-end=\"4994\">Gi\u1ea3m th\u1eddi gian l\u01b0u nh\u1ef1a<\/li>\n<li data-section-id=\"oq32jb\" data-start=\"4995\" data-end=\"5023\">\u0110\u1ea3m b\u1ea3o nguy\u00ean li\u1ec7u s\u1ea1ch<\/li>\n<\/ul>\n<p data-start=\"5025\" data-end=\"5136\">Vi\u1ec7c ki\u1ec3m so\u00e1t t\u1ed1t c\u00e1c y\u1ebfu t\u1ed1 tr\u00ean s\u1ebd <strong data-start=\"5063\" data-end=\"5135\">gi\u1ea3m \u0111\u00e1ng k\u1ec3 l\u1ed7i Black Speck v\u00e0 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m \u00e9p nh\u1ef1a<\/strong>.<\/p>\n<p data-start=\"5025\" data-end=\"5136\"><a href=\"https:\/\/ninhson-vn.com\/?p=772\">L\u1ed7i Loang m\u00e0u tr\u00ean s\u1ea3n ph\u1ea9m nh\u1ef1a<\/a><\/p>\n<p data-start=\"5025\" data-end=\"5136\"><a href=\"https:\/\/www.tan-star.com\/\">Xilanh tr\u1ee5c v\u00edt Tanstar cho m\u00e1y \u00e9p nh\u1ef1a<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Black Speck (V\u1ebft \u0111en tr\u00ean s\u1ea3n ph\u1ea9m \u00e9p nh\u1ef1a): Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c 4 1. Black Speck l\u00e0 g\u00ec? Black Speck (BS) l\u00e0 l\u1ed7i ngo\u1ea1i quan trong \u00e9p nh\u1ef1a, xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng ch\u1ea5m \u0111en ho\u1eb7c v\u1ec7t \u0111en nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m nh\u1ef1a. C\u00e1c ch\u1ea5m \u0111en n\u00e0y th\u01b0\u1eddng l\u00e0 nh\u1ef1a b\u1ecb&#8230;.<\/p>\n","protected":false},"author":2,"featured_media":780,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-779","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.2 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>L\u1ed7i ch\u1ea5m \u0111en tr\u00ean s\u1ea3n ph\u1ea9m nh\u1ef1a - C\u00d4NG TY TNHH TH\u01af\u01a0NG M\u1ea0I D\u1ecaCH V\u1ee4 V\u00c0 S\u1ea2N PH\u1ea8M NINH S\u01a0N<\/title>\n<meta name=\"description\" content=\"Black Speck (BS) l\u00e0 l\u1ed7i ngo\u1ea1i quan trong \u00e9p nh\u1ef1a, xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng ch\u1ea5m \u0111en ho\u1eb7c v\u1ec7t \u0111en nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m nh\u1ef1a.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u1ed7i ch\u1ea5m \u0111en tr\u00ean s\u1ea3n ph\u1ea9m nh\u1ef1a\" \/>\n<meta property=\"og:description\" content=\"Black Speck (BS) l\u00e0 l\u1ed7i ngo\u1ea1i quan trong \u00e9p nh\u1ef1a, xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng ch\u1ea5m \u0111en ho\u1eb7c v\u1ec7t \u0111en nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m nh\u1ef1a.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ninhson-vn.com\/?p=779\" \/>\n<meta property=\"og:site_name\" content=\"C\u00d4NG TY TNHH TH\u01af\u01a0NG M\u1ea0I D\u1ecaCH V\u1ee4 V\u00c0 S\u1ea2N PH\u1ea8M NINH S\u01a0N\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-26T09:04:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ninhson-vn.com\/wp-content\/uploads\/cham-den.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ninhson-vn.com\/?p=779\",\"url\":\"https:\/\/ninhson-vn.com\/?p=779\",\"name\":\"L\u1ed7i ch\u1ea5m \u0111en tr\u00ean s\u1ea3n ph\u1ea9m nh\u1ef1a - 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