{"id":4706,"date":"2025-11-28T11:50:26","date_gmt":"2025-11-28T03:50:26","guid":{"rendered":"https:\/\/www.oc-epc.com\/?p=4706"},"modified":"2025-11-24T13:59:27","modified_gmt":"2025-11-24T05:59:27","slug":"the-role-of-coatings-in-lost-foam-casting-production-process","status":"publish","type":"post","link":"https:\/\/www.oc-epc.com\/vi\/tin-tuc-blog\/tin-tuc-nganh\/vai-tro-cua-lop-phu-trong-qua-trinh-san-xuat-duc-bot-bi-mat\/","title":{"rendered":"Vai tr\u00f2 c\u1ee7a l\u1edbp ph\u1ee7 trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t"},"content":{"rendered":"<p><a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/vi\/cac-san-pham\/\"><strong>\u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t (EPC)<\/strong><\/a>\u0110\u00f4i khi \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u00fac m\u1eabu bay h\u01a1i, n\u1ed5i b\u1eadt l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch th\u1ef1c t\u1ebf v\u00e0 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng nh\u1ea5t \u0111\u1ec3 l\u00e0m c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i h\u00ecnh d\u1ea1ng g\u1ea7n l\u01b0\u1edbi ph\u1ee9c t\u1ea1p. Ch\u00eca kh\u00f3a th\u1ef1c s\u1ef1 \u0111\u1ec3 th\u00e0nh c\u00f4ng trong ph\u01b0\u01a1ng ph\u00e1p n\u00e0y n\u1eb1m trong vi\u1ec7c l\u1edbp ph\u1ee7 ch\u1ed1ng ch\u00e1y ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u01b0 th\u1ebf n\u00e0o tr\u00ean m\u00f4 h\u00ecnh EPS (polystyrene m\u1edf r\u1ed9ng). L\u1edbp ph\u1ee7 n\u00e0y kh\u00f4ng ch\u1ec9 b\u1ea3o v\u1ec7 - n\u00f3 th\u1ef1c s\u1ef1 t\u1ea1o th\u00e0nh l\u00e1 ch\u1eafn k\u1ef9 thu\u1eadt ch\u00ednh \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u0111\u00fac t\u1ed1t, k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c v\u00e0 b\u1ec1 m\u1eb7t m\u1ecbn. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p m\u1ed9t gi\u1ea3i th\u00edch k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng v\u00e0 chi ti\u1ebft v\u1ec1 nh\u1eefng g\u00ec l\u1edbp ph\u1ee7 l\u00e0m, nh\u1eefng g\u00ec n\u00f3 ch\u1ee9a, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 l\u1ef1a ch\u1ecdn n\u00f3, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 tr\u1ed9n n\u00f3, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u00e1p d\u1ee5ng n\u00f3, v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 kh\u00f4 n\u00f3 \u0111\u00fang c\u00e1ch trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t.<\/p>\n<h2 id=\"the-role-basic-composition-and-performance-of-lost-foam-coating\"><strong>1. Vai tr\u00f2, th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a l\u1edbp ph\u1ee7 b\u1ecdt b\u1ecb m\u1ea5t<\/strong><\/h2>\n<h3 id=\"main-functions-of-the-coating\"><strong>(1) Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a l\u1edbp ph\u1ee7<\/strong><\/h3>\n<p>S\u01a1n ch\u1ed1ng ch\u00e1y \u0111\u00f3ng b\u1ed1n vai tr\u00f2 ch\u00ednh trong \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t:<\/p>\n<ol type=\"1\">\n<li><strong>T\u0103ng c\u01b0\u1eddng m\u00f4 h\u00ecnh b\u1ecdt<\/strong> L\u1edbp ph\u1ee7 l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a m\u00f4 h\u00ecnh EPS tinh t\u1ebf. N\u00f3 ng\u1eebng u\u1ed1n cong ho\u1eb7c ph\u00e1 v\u1ee1 trong khi c\u00f4ng nh\u00e2n di chuy\u1ec3n n\u00f3, nh\u00fang n\u00f3, l\u1ea5p \u0111\u1ea7y c\u00e1t xung quanh n\u00f3 ho\u1eb7c n\u00e9n c\u00e1t.<\/li>\n<li><strong>R\u00e0ng r\u00e0o c\u00e1ch ly gi\u1eefa kim lo\u1ea1i n\u00f3ng ch\u1ea3y v\u00e0 c\u00e1t kh\u00f4<\/strong> Khi kim lo\u1ea1i \u0111\u01b0\u1ee3c \u0111\u1ed5, l\u1edbp ph\u1ee7 tr\u1edf th\u00e0nh th\u1ee9 duy nh\u1ea5t gi\u1eef cho kim lo\u1ea1i l\u1ecfng tr\u00e1nh xa c\u00e1t kh\u00f4 l\u1ecfng l\u1ecfng. N\u00f3 ng\u0103n ch\u1eb7n kim lo\u1ea1i th\u1ea5m v\u00e0o c\u00e1t (c\u00e1t \u0111\u1ed1t ch\u00e1y). N\u00f3 c\u0169ng gi\u1eef cho c\u00e1t r\u01a1i v\u00e0o d\u00f2ng ch\u1ea3y kim lo\u1ea1i. K\u1ebft qu\u1ea3 l\u00e0, \u0111\u00fac ra s\u1ea1ch s\u1ebd v\u00e0 khu\u00f4n v\u1eabn \u1ed5n \u0111\u1ecbnh.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng th\u1ea5m v\u00e0 s\u01a1 t\u00e1n c\u00e1c s\u1ea3n ph\u1ea9m nhi\u1ec7t ph\u00e2n<\/strong> Ngay khi kim lo\u1ea1i n\u00f3ng ch\u1ea1m v\u00e0o m\u00f4 h\u00ecnh EPS, b\u1ecdt nhanh ch\u00f3ng ph\u00e2n h\u1ee7y th\u00e0nh c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 kh\u00ed v\u00e0 ch\u1ea5t l\u1ecfng.\n<ol type=\"1\">\n<li>\u0110\u1ed1i v\u1edbi s\u1eaft \u0111\u00fac v\u00e0 th\u00e9p (1350-1600 \u00b0 C), h\u1ea7u h\u1ebft c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 bi\u1ebfn th\u00e0nh kh\u00ed \u2192  l\u1edbp ph\u1ee7 c\u1ea7n kh\u1ea3 n\u0103ng th\u1ea5m kh\u00ed n\u1ed5i b\u1eadt.<\/li>\n<li>\u0110\u1ed1i v\u1edbi h\u1ee3p kim nh\u00f4m (760-780 \u00b0 C), h\u1ea7u h\u1ebft c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 v\u1eabn l\u00e0 ch\u1ea5t l\u1ecfng \u2192  l\u1edbp ph\u1ee7 ph\u1ea3i \u01b0\u1edbt d\u1ec5 d\u00e0ng v\u00e0 h\u1ea5p th\u1ee5 ch\u1ea5t l\u1ecfng c\u00f2n l\u1ea1i nhanh ch\u00f3ng. Lo\u1ea1i b\u1ecf t\u1ed1t c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 n\u00e0y ng\u0103n ch\u1eb7n l\u1ed7, n\u1ebfp nh\u0103n, \u0111\u1ed1m carbon v\u00e0 c\u00e1c h\u1ea1t kh\u00f4ng mong mu\u1ed1n.<\/li>\n<\/ol>\n<\/li>\n<li><strong>C\u00e1ch nhi\u1ec7t<\/strong> L\u1edbp ph\u1ee7 l\u00e0m ch\u1eadm m\u1ea5t nhi\u1ec7t t\u1eeb kim lo\u1ea1i n\u00f3ng v\u00e0o c\u00e1t l\u1ea1nh. \u0110i\u1ec1u n\u00e0y gi\u00fap kim lo\u1ea1i \u0103n t\u1ed1t h\u01a1n v\u00e0o c\u00e1c ph\u1ea7n m\u1ecfng v\u00e0 l\u1ea5p \u0111\u1ea7y m\u1ecdi g\u00f3c.<\/li>\n<\/ol>\n<h3 id=\"basic-composition-of-lost-foam-coating\"><strong>(2) Th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a l\u1edbp ph\u1ee7 b\u1ecdt b\u1ecb m\u1ea5t<\/strong><\/h3>\n<p>M\u1ed9t l\u1edbp ph\u1ee7 b\u1ecdt b\u1ecb m\u1ea5t m\u1ea1nh th\u01b0\u1eddng ch\u1ee9a c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y:<\/p>\n<ol type=\"1\">\n<li><strong>T\u1ed5ng h\u1ee3p ch\u1ed1ng ch\u00e1y<\/strong> \u2013 C\u1ea5u tr\u00fac ch\u00ednh thi\u1ebft l\u1eadp kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t, \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t. C\u00e1c l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn l\u00e0 zircon, silica, alumina, magi\u00ea, graphite, kyanite, v.v. Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 h\u00ecnh d\u1ea1ng (tr\u00f2n ho\u1eb7c gi\u1ed1ng nh\u01b0 c\u1ed9t ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t) \u1ea3nh h\u01b0\u1edfng m\u1ea1nh m\u1ebd \u0111\u1ebfn c\u00e1ch d\u1ec5 d\u00e0ng kh\u00ed \u0111i qua.<\/li>\n<li><strong>Ch\u1ea5t r\u00e0ng bu\u1ed9c<\/strong> \u2013 C\u00e1c nh\u00e0 m\u00e1y s\u1eed d\u1ee5ng c\u1ea3 c\u00e1c lo\u1ea1i h\u1eefu c\u01a1 (tinh b\u1ed9t, dextrin, CMC, PVA) v\u00e0 c\u00e1c lo\u1ea1i v\u00f4 h\u1eefu c\u01a1 (sol silica, silicat natri, nano-bentonit). Nh\u1eefng th\u1ee9 h\u1eefu c\u01a1 b\u1ecb ch\u00e1y trong khi \u0111\u1ed5 v\u00e0 t\u1ea1o ra c\u00e1c con \u0111\u01b0\u1eddng m\u1edf th\u00eam. Nh\u1eefng th\u1ee9 v\u00f4 h\u1eefu c\u01a1 gi\u1eef s\u1ee9c m\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li><strong>H\u00e3ng v\u1eadn chuy\u1ec3n<\/strong> Th\u00f4ng th\u01b0\u1eddng l\u00e0 h\u1ed7n h\u1ee3p ch\u1ea5t l\u1ecfng d\u1ef1a tr\u00ean n\u01b0\u1edbc ho\u1eb7c d\u1ef1a tr\u00ean r\u01b0\u1ee3u.<\/li>\n<li><strong>Ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t (ch\u1ea5t l\u00e0m \u01b0\u1edbt)<\/strong> \u2013 Nh\u1eefng c\u0103ng th\u1eb3ng b\u1ec1 m\u1eb7t th\u1ea5p h\u01a1n \u0111\u1ec3 l\u1edbp ph\u1ee7 d\u00ednh t\u1ed1t v\u00e0o b\u1ec1 m\u1eb7t EPS phi c\u1ef1c.<\/li>\n<li><strong>C\u00e1c \u0111\u1ea1i l\u00fd b\u1ecb treo<\/strong> Bentonit, attapulgite, CMC ho\u1eb7c bentonit h\u1eefu c\u01a1 ng\u0103n ch\u1eb7n c\u00e1c h\u1ea1t n\u1eb7ng ch\u00ecm nhanh ch\u00f3ng.<\/li>\n<li><strong>Thu\u1ed1c thixotropic<\/strong> H\u1ea7u h\u1ebft l\u00e0 attapulgite. Ch\u00fang l\u00e0m cho l\u1edbp ph\u1ee7 m\u1ecfng khi khu\u1ea5y nh\u01b0ng d\u00e0y khi v\u1eabn c\u00f2n.<\/li>\n<li><strong>Ph\u1ee5 gia<\/strong> \u2013 Ch\u1ea5t kh\u1eed b\u1ecdt (n-octanol, tributyl phosphate), ch\u1ea5t b\u1ea3o qu\u1ea3n (natri benzoate) v\u00e0 thu\u1ed1c di\u1ec7t vi khu\u1ea9n.<\/li>\n<\/ol>\n<h3 id=\"key-performance-requirements\"><strong>(3) Y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t ch\u00ednh<\/strong><\/h3>\n<p>M\u1ecdi ng\u01b0\u1eddi \u0111\u00e1nh gi\u00e1 l\u1edbp ph\u1ee7 trong hai nh\u00f3m:<\/p>\n<p><strong>Hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c:<\/strong><\/p>\n<ul>\n<li>S\u1ee9c m\u1ea1nh \u1edf c\u1ea3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p v\u00e0 cao<\/li>\n<li>Kh\u1ea3 n\u0103ng th\u1ea5m kh\u00ed<\/li>\n<li>Ch\u1ed1ng ch\u00e1y (&gt; 1600 \u00b0 C cho s\u1eaft \/ th\u00e9p)<\/li>\n<li>Kh\u1ea3 n\u0103ng x\u1eed l\u00fd nh\u1eefng thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9t ng\u1ed9t<\/li>\n<li>Kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5<\/li>\n<li>D\u1ec5 ph\u00e1 v\u1ee1 sau khi \u0111\u1ed5<\/li>\n<\/ul>\n<p><strong>Hi\u1ec7u su\u1ea5t quy tr\u00ecnh:<\/strong><\/p>\n<ul>\n<li>Tr\u1ea3i r\u1ed9ng tr\u01a1n tru tr\u00ean EPS<\/li>\n<li>M\u1ee9c \u0111\u1ed9 t\u1ed1t \u0111\u1eb9p v\u1edbi \u00edt dripping<\/li>\n<li>\u1ede h\u1ed7n h\u1ee3p t\u1ed1t (kh\u00f4ng \u0111\u1ecbnh c\u01b0 trong 24-48 gi\u1edd)<\/li>\n<li>Hi\u1ec3n th\u1ecb d\u00f2ng ch\u1ea3y thixotropic th\u00edch h\u1ee3p \u0111\u1ec3 d\u1ec5 d\u00e0ng ng\u00e2m<\/li>\n<\/ul>\n<h2 id=\"selection-of-lost-foam-coatings\"><strong>2. L\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7 b\u1ecdt b\u1ecb m\u1ea5t<\/strong><\/h2>\n<h3 id=\"according-to-chemical-properties-ph-compatibility\"><strong>(1) Theo \u0111\u1eb7c t\u00ednh h\u00f3a h\u1ecdc (t\u01b0\u01a1ng th\u00edch pH)<\/strong><\/h3>\n<ul>\n<li><strong>S\u1eaft &amp; amp; th\u00e9p carbon \/ h\u1ee3p kim th\u1ea5p (ch\u1ea3y axit):<\/strong> Ch\u1ecdn ch\u1ea5t ch\u1ed1ng ch\u00e1y axit ho\u1eb7c trung l\u1eadp - c\u00e1t th\u1ea1ch anh, kyanite, graphite h\u1ea1t, silica zircon.<\/li>\n<li><strong>Th\u00e9p h\u1ee3p kim cao (trung l\u1eadp):<\/strong> Ch\u1ecdn c\u00e1c lo\u1ea1i axit y\u1ebfu ho\u1eb7c trung l\u1eadp - zircon, corundum, zirconium englobe.<\/li>\n<li><strong>Th\u00e9p mangan cao (ki\u1ec1m):<\/strong> S\u1eed d\u1ee5ng c\u00e1c l\u1edbp ph\u1ee7 d\u1ef1a tr\u00ean magnesia, forsterite ho\u1eb7c magnesia-olivine.<\/li>\n<li><strong>H\u1ee3p kim nh\u00f4m:<\/strong> Ch\u1ecdn l\u1edbp ph\u1ee7 \u0111\u1eb7c bi\u1ec7t ch\u1ed1ng ch\u00e1y th\u1ea5p th\u1edf t\u1ed1t v\u00e0 h\u1ea5p th\u1ee5 ch\u1ea5t l\u1ecfng nhanh ch\u00f3ng (th\u01b0\u1eddng d\u1ef1a tr\u00ean c\u00e1t ng\u1ecdc trai ho\u1eb7c bauxite).<\/li>\n<\/ul>\n<h3 id=\"according-to-pouring-temperature-process-conditions\"><strong>(2) Theo nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed5 &amp; \u0110i\u1ec1u ki\u1ec7n quy tr\u00ecnh<\/strong><\/h3>\n<p>Nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed5 cao h\u01a1n \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t l\u1edbn h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed9t ng\u1ed9t h\u01a1n. C\u00e1c b\u1ed9 ph\u1eadn ph\u1ee9c t\u1ea1p t\u01b0\u1eddng m\u1ecfng c\u1ea7n kh\u1ea3 n\u0103ng th\u1edf tuy\u1ec7t v\u1eddi v\u00e0 c\u00e1c l\u1edbp m\u1ecfng h\u01a1n. C\u00e1c b\u1ed9 ph\u1eadn n\u1eb7ng l\u1edbn \u0111\u00f2i h\u1ecfi c\u00e1c l\u1edbp d\u00e0y h\u01a1n v\u00e0 c\u1ee9ng h\u01a1n.<\/p>\n<h2 id=\"coating-preparation-quality-control-and-storage\"><strong>3. Chu\u1ea9n b\u1ecb l\u1edbp ph\u1ee7, ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 l\u01b0u tr\u1eef<\/strong><\/h2>\n<h3 id=\"modern-lost-foam-paint-mixer-and-mixing-equipment\"><strong>M\u00e1y tr\u1ed9n s\u01a1n b\u1ecdt m\u1ea5t hi\u1ec7n \u0111\u1ea1i v\u00e0 thi\u1ebft b\u1ecb tr\u1ed9n<\/strong><\/h3>\n<p>\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1edbp ph\u1ee7 b\u1ecdt m\u1ea5t hi\u1ec7u su\u1ea5t cao, m\u1ed9t <a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/vi\/danh-muc-san-pham\/may-tron-son-loai-thang-may\/\"><strong>m\u00e1y tr\u1ed9n s\u01a1n \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t chuy\u00ean nghi\u1ec7p<\/strong><\/a> (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u1ea5t ph\u00e2n t\u00e1n l\u1edbp ph\u1ee7 c\u1eaft cao) l\u00e0 c\u1ea7n thi\u1ebft. M\u00e1y tr\u1ed9n s\u01a1n \u0111\u00fac b\u1ecdt m\u1ea5t ti\u00ean ti\u1ebfn ng\u00e0y nay \u00e1p d\u1ee5ng thi\u1ebft k\u1ebf lo\u1ea1i thang m\u00e1y k\u1ebft h\u1ee3p b\u1ed9 ph\u00e2n t\u00e1n ch\u00ednh t\u1ed1c \u0111\u1ed9 cao v\u1edbi b\u1ec3 l\u1edbp ph\u1ee7 ch\u1ed1ng tr\u1ea7m t\u00edch di \u0111\u1ed9ng.<\/p>\n<p>&nbsp;<\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" src=\"http:\/\/www.oc-epc.com\/wp-content\/uploads\/2025\/11\/Lift-type-paint-mixer-equipment-for-lost-foam-casting-refractory-coating.png\" alt=\"Thi\u1ebft b\u1ecb tr\u1ed9n s\u01a1n lo\u1ea1i thang m\u00e1y cho l\u1edbp ph\u1ee7 ch\u1ed1ng ch\u00e1y \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t\" \/><\/div>\n<p>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a m\u00e1y tr\u1ed9n s\u01a1n \u0111\u00fac b\u1ecdt m\u1ea5t hi\u1ec7n \u0111\u1ea1i bao g\u1ed3m:<\/p>\n<ul>\n<li>To\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 304 - ch\u1ed1ng axit \/ ki\u1ec1m, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 d\u1ec5 l\u00e0m s\u1ea1ch<\/li>\n<li>\u0110\u1ed9ng c\u01a1 t\u1ed1c \u0111\u1ed9 cao t\u1ea7n s\u1ed1 bi\u1ebfn \u0111\u1ed5i (0-1100 rpm) v\u1edbi b\u1ed9 gi\u1ea3m m\u00f4-men xo\u1eafn cao cho b\u00f9n tinh t\u1ebf, kh\u00f4ng c\u00f3 bong b\u00f3ng<\/li>\n<li>B\u1ec3 ch\u00ecm di \u0111\u1ed9ng \u0111\u01b0\u1eddng k\u00ednh 1,5 m\u00e9t v\u1edbi xoay t\u1ed1c \u0111\u1ed9 th\u1ea5p li\u00ean t\u1ee5c \u0111\u1ec3 lo\u1ea1i b\u1ecf tr\u1ea7m t\u00edch l\u1edbp ph\u1ee7<\/li>\n<li>Tr\u1ed9n theo th\u1eddi gian t\u1ef1 \u0111\u1ed9ng, th\u1ea3i d\u01b0\u1edbi v\u00e0 c\u00e1c ch\u1ee9c n\u0103ng b\u1ed5 sung n\u01b0\u1edbc cho ho\u1ea1t \u0111\u1ed9ng ho\u00e0n to\u00e0n t\u1ef1 \u0111\u1ed9ng<\/li>\n<\/ul>\n<p>So v\u1edbi m\u00e1y khu\u1ea5y truy\u1ec1n th\u1ed1ng, c\u00e1c m\u00e1y tr\u1ed9n s\u01a1n \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t chuy\u00ean d\u1ee5ng n\u00e0y s\u1ea3n xu\u1ea5t c\u00e1c h\u1ea1t m\u1ecbn h\u01a1n \u0111\u00e1ng k\u1ec3, b\u1ecdt kh\u00f4ng, v\u00e0 hi\u1ec7u su\u1ea5t thixotropy v\u00e0 c\u00e2n b\u1eb1ng v\u01b0\u1ee3t tr\u1ed9i, tr\u1ef1c ti\u1ebfp c\u1ea3i thi\u1ec7n t\u00ednh \u0111\u1ed3ng nh\u1ea5t l\u1edbp ph\u1ee7 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t \u0111\u00fac cu\u1ed1i c\u00f9ng.<\/p>\n<h3 id=\"preparation-process\"><strong>Qu\u00e1 tr\u00ecnh chu\u1ea9n b\u1ecb<\/strong><\/h3>\n<ol type=\"1\">\n<li>Ph\u00e2n t\u00e1n t\u1ed1c \u0111\u1ed9 cao (\u22652 gi\u1edd) trong m\u00e1y tr\u1ed9n s\u01a1n b\u1ecdt b\u1ecb m\u1ea5t: hydrate \u0111\u1ea7y \u0111\u1ee7 v\u00e0 c\u1eaft t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9t<\/li>\n<li>T\u1ed1c \u0111\u1ed9 th\u1ea5p tho\u00e1t kh\u00ed (\u22652 gi\u1edd) trong b\u1ec3 ch\u1ed1ng tr\u1ea7m t\u00edch: lo\u1ea1i b\u1ecf kh\u00f4ng kh\u00ed b\u1ecb h\u00fat<\/li>\n<\/ol>\n<h3 id=\"key-quality-control-parameters\"><strong>C\u00e1c th\u00f4ng s\u1ed1 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng ch\u00ednh<\/strong><\/h3>\n<ul>\n<li>M\u1eadt \u0111\u1ed9 (Baum\u00e9 65\u201380\u00b0 B\u00e9)<\/li>\n<li>Ch\u1ec9 s\u1ed1 \u0111\u1ed9 nh\u1edbt v\u00e0 thixotropic<\/li>\n<li>Gi\u00e1 tr\u1ecb pH (th\u01b0\u1eddng l\u00e0 7-9)<\/li>\n<li>\u0110\u1ed9 \u1ea9m c\u00f2n l\u1ea1i sau khi s\u1ea5y (&lt; 1%)<\/li>\n<\/ul>\n<h3 id=\"storage-recommendations\"><strong>Khuy\u1ebfn ngh\u1ecb l\u01b0u tr\u1eef<\/strong><\/h3>\n<p>Chu\u1ea9n b\u1ecb h\u00e0ng lo\u1ea1t t\u01b0\u01a1i m\u1ed7i ng\u00e0y b\u1ea5t c\u1ee9 khi n\u00e0o c\u00f3 th\u1ec3. L\u01b0u tr\u1eef t\u1ed1i \u0111a m\u00f9a h\u00e8 2-5 ng\u00e0y, m\u00f9a \u0111\u00f4ng 5-10 ng\u00e0y trong \u0111i\u1ec1u ki\u1ec7n m\u00e1t m\u1ebb v\u1edbi k\u00edch \u0111\u1ed9ng t\u1ed1c \u0111\u1ed9 th\u1ea5p th\u01b0\u1eddng xuy\u00ean b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y tr\u1ed9n s\u01a1n b\u1ecdt b\u1ecb m\u1ea5t.<\/p>\n<h2 id=\"coating-application-methods-and-precautions\"><strong>4. Ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng l\u1edbp ph\u1ee7 v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba<\/strong><\/h2>\n<h3 id=\"application-methods\"><strong>(1) Ph\u01b0\u01a1ng ph\u00e1p \u1ee9ng d\u1ee5ng<\/strong><\/h3>\n<ul>\n<li><strong>Ch\u1ea3i:<\/strong> Ho\u1ea1t \u0111\u1ed9ng t\u1ed1t cho c\u00e1c m\u1ea3nh \u0111\u01a1n l\u1ebb l\u1edbn ho\u1eb7c ch\u1ea1y th\u1eed nghi\u1ec7m<\/li>\n<li><strong>L\u1edbp ph\u1ee7 nh\u00fang \/ d\u00f2ng ch\u1ea3y:<\/strong> Ho\u00e0n h\u1ea3o cho c\u00e1c l\u00f4 l\u1edbn c\u00e1c b\u1ed9 ph\u1eadn ph\u1ee9c t\u1ea1p nh\u1ecf \u0111\u1ebfn trung b\u00ecnh<\/li>\n<li><strong>Phun:<\/strong> L\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho c\u00e1c m\u1ea3nh t\u01b0\u1eddng m\u1ecfng ho\u1eb7c c\u00e1c m\u1eabu u\u1ed1n cong d\u1ec5 d\u00e0ng<\/li>\n<\/ul>\n<h3 id=\"coating-thickness-control\"><strong>(2) Ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7<\/strong><\/h3>\n<ul>\n<li>B\u1ec1 m\u1eb7t m\u1eabu: 0,5-2,0 mm (s\u1eaft \/ th\u00e9p), 0,3-1,0 mm (nh\u00f4m)<\/li>\n<li>Sprue &amp; h\u1ec7 th\u1ed1ng ch\u1ea1y: 2,0-4,0 mm cho s\u1ee9c m\u1ea1nh b\u1ed5 sung<\/li>\n<\/ul>\n<h3 id=\"key-operational-precautions\"><strong>(3) C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba ho\u1ea1t \u0111\u1ed9ng ch\u00ednh<\/strong><\/h3>\n<ul>\n<li>Gi\u1eef khu\u1ea5y ch\u1eadm li\u00ean t\u1ee5c (10-20 rpm) trong khi nh\u00fang<\/li>\n<li>\u0110\u1eebng l\u1eafc c\u00e1c m\u1eabu ph\u1ee7 c\u1ee9ng \u2013 ch\u1ec9 c\u1ea7n \u0111\u1ec3 d\u01b0 th\u1eeba \u6ef4 m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean<\/li>\n<li>\u0110\u1eebng bao gi\u1edd \u0111\u1ec3 l\u1ea1i b\u1ea5t k\u1ef3 \u0111\u1ed1m tr\u1ea7n (s\u01b0\u01a1ng) tr\u00ean m\u1eabu<\/li>\n<li>Ki\u1ec3m so\u00e1t g\u00f3c ch\u00ecm v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh b\u1ecb m\u1eafc k\u1eb9t kh\u00f4ng kh\u00ed<\/li>\n<\/ul>\n<h2 id=\"advanced-drying-technology-for-lost-foam-coatings\"><strong>5. C\u00f4ng ngh\u1ec7 s\u1ea5y ti\u00ean ti\u1ebfn cho l\u1edbp ph\u1ee7 b\u1ecdt b\u1ecb m\u1ea5t<\/strong><\/h2>\n<p>S\u1ea5y kh\u00f4 \u0111\u00fang c\u00e1ch l\u00e0 s\u1ef1 \u0111\u1ea3m b\u1ea3o cu\u1ed1i c\u00f9ng c\u1ee7a hi\u1ec7u su\u1ea5t l\u1edbp ph\u1ee7. H\u01a1i n\u01b0\u1edbc ho\u1eb7c s\u1ea5y \u0111i\u1ec7n truy\u1ec1n th\u1ed1ng ph\u1ea7n l\u1edbn \u0111\u00e3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi <a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/vi\/danh-muc-san-pham\/may-say-khong-khi\/\"><strong>h\u1ec7 th\u1ed1ng s\u1ea5y b\u01a1m nhi\u1ec7t ngu\u1ed3n kh\u00f4ng kh\u00ed ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng<\/strong><\/a> \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1eb7c bi\u1ec7t cho ng\u00e0nh c\u00f4ng nghi\u1ec7p b\u1ecdt b\u1ecb m\u1ea5t.<\/p>\n<p>&nbsp;<\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" src=\"http:\/\/www.oc-epc.com\/wp-content\/uploads\/2025\/11\/lost-foam-casting-energy-efficient-air-source-heat-pump-drying-systems-machines.png\" alt=\"m\u1ea5t b\u1ecdt \u0111\u00fac n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 m\u00e1y b\u01a1m nhi\u1ec7t ngu\u1ed3n kh\u00f4ng kh\u00ed h\u1ec7 th\u1ed1ng s\u1ea5y\" \/><\/div>\n<h3 id=\"modern-air-source-heat-pump-drying-solutions\"><strong>Gi\u1ea3i ph\u00e1p s\u1ea5y b\u01a1m nhi\u1ec7t ngu\u1ed3n kh\u00f4ng kh\u00ed hi\u1ec7n \u0111\u1ea1i<\/strong><\/h3>\n<p>C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng \u0111\u1ea7u cung c\u1ea5p ba c\u1ea5u h\u00ecnh:<\/p>\n<ul>\n<li>C\u00e1c \u0111\u01a1n v\u1ecb g\u1eafn tr\u00ean (nh\u1ecf g\u1ecdn, d\u1ec5 l\u1eafp \u0111\u1eb7t)<\/li>\n<li>H\u1ec7 th\u1ed1ng c\u00f4ng su\u1ea5t cao l\u1eafp \u0111\u1eb7t ph\u00eda sau (ph\u00f2ng s\u1ea5y 80-100 m\u00b2)<\/li>\n<li>C\u00e1c \u0111\u01a1n v\u1ecb t\u00edch h\u1ee3p trong nh\u00e0 v\u1edbi thi\u1ebft k\u1ebf tr\u01b0\u1eddng gi\u00f3 ch\u00ednh x\u00e1c<\/li>\n<\/ul>\n<h3 id=\"key-advantages\"><strong>L\u1ee3i th\u1ebf ch\u00ednh<\/strong><\/h3>\n<ul>\n<li>Nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c \u1edf 35-50 \u00b0 C (\u00b1 1 \u00b0 C \u0111\u1ed3ng nh\u1ea5t)<\/li>\n<li>\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u226415% \u0111\u1ec3 s\u1ea5y nhanh ch\u00f3ng, kh\u00f4ng b\u1ecb n\u1ee9t<\/li>\n<li>Ph\u1ee5c h\u1ed3i nhi\u1ec7t v\u00f2ng k\u00edn &gt; 70%, COP &gt; 2.0<\/li>\n<li>Kh\u00f4ng kh\u00ed th\u1ea3i, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng 60-70% so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng<\/li>\n<li>Gi\u00e1m s\u00e1t t\u1eeb xa IoT th\u00f4ng qua \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng<\/li>\n<\/ul>\n<p>C\u00e1c h\u1ec7 th\u1ed1ng n\u00e0y lo\u1ea1i b\u1ecf c\u00e1c v\u1ebft n\u1ee9t l\u1edbp ph\u1ee7 do s\u01b0\u1edfi \u1ea5m nhanh ch\u00f3ng v\u00e0 \u0111\u1ea3m b\u1ea3o lo\u1ea1i b\u1ecf \u0111\u1ed9 \u1ea9m ho\u00e0n to\u00e0n m\u00e0 kh\u00f4ng l\u00e0m m\u1ec1m m\u00f4 h\u00ecnh EPS.<\/p>\n<h2 id=\"faq-about-lost-foam-casting-coatings\"><strong>FAQ V\u1ec1 s\u01a1n \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t<\/strong><\/h2>\n<p><strong>Q: T\u1ea1i sao \u0111\u1ed9 th\u1ea5m l\u1edbp ph\u1ee7 r\u1ea5t quan tr\u1ecdng trong \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t?<\/strong> A: B\u1edfi v\u00ec m\u00f4 h\u00ecnh EPS bi\u1ebfn th\u00e0nh m\u1ed9t l\u01b0\u1ee3ng l\u1edbn kh\u00ed v\u00e0 ch\u1ea5t l\u1ecfng khi kim lo\u1ea1i n\u00f3ng ch\u1ea1m v\u00e0o n\u00f3. Kh\u1ea3 n\u0103ng th\u1ea5m th\u1ea5m k\u00e9m b\u1eaby kh\u00ed v\u00e0 g\u00e2y ra l\u1ed7 ch\u00e2n l\u00f4ng, n\u1ebfp nh\u0103n v\u00e0 khi\u1ebfm khuy\u1ebft carbon.<\/p>\n<p><strong>Q: C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t l\u1edbp ph\u1ee7 cho c\u1ea3 s\u1eaft \u0111\u00fac v\u00e0 nh\u00f4m kh\u00f4ng?<\/strong> A: Kh\u00f4ng. S\u1eaft c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t cao v\u00e0 gi\u1ea3i ph\u00f3ng kh\u00ed m\u1ea1nh m\u1ebd. Nh\u00f4m c\u1ea7n s\u1ef1 h\u1ea5p th\u1ee5 ch\u1ea5t l\u1ecfng tuy\u1ec7t v\u1eddi v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec7t th\u1ea5p h\u01a1n. S\u1eed d\u1ee5ng m\u1ed9t l\u1edbp ph\u1ee7 s\u1eaft tr\u00ean nh\u00f4m t\u1ea1o ra c\u00e1c khi\u1ebfm khuy\u1ebft carbon nghi\u00eam tr\u1ecdng.<\/p>\n<p><strong>Q: \u0110\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 l\u00fd t\u01b0\u1edfng cho \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t s\u1eaft l\u00e0 g\u00ec?<\/strong> A: Th\u00f4ng th\u01b0\u1eddng 0,8-1,8 mm tr\u00ean b\u1ec1 m\u1eb7t m\u1eabu v\u00e0 2,5-4,0 mm tr\u00ean h\u1ec7 th\u1ed1ng c\u1eeda. C\u00e1c l\u1edbp d\u00e0y h\u01a1n l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng th\u1edf. C\u00e1c l\u1edbp m\u1ecfng h\u01a1n c\u00f3 nguy c\u01a1 kim lo\u1ea1i b\u1ecb ch\u00e1y v\u00e0o c\u00e1t.<\/p>\n<p><strong>Q: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 tr\u00e1nh l\u1edbp ph\u1ee7 n\u1ee9t trong khi s\u1ea5y?<\/strong> A: Gi\u1eef nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 50 \u00b0 C, t\u0103ng nhi\u1ec7t t\u1eeb t\u1eeb (&lt; 10 \u00b0 C \/ h), v\u00e0 cung c\u1ea5p d\u00f2ng kh\u00f4ng kh\u00ed th\u1eadm ch\u00ed. Ch\u1ecdn l\u1edbp ph\u1ee7 v\u1edbi h\u1ed7n h\u1ee3p thixotropy v\u00e0 ch\u1ea5t k\u1ebft h\u1ee3p ph\u00f9 h\u1ee3p.<\/p>\n<p><strong>Q: T\u1ea1i sao m\u1ed9t s\u1ed1 nh\u00e0 m\u00e1y v\u1eabn th\u1ea5t b\u1ea1i ngay c\u1ea3 v\u1edbi l\u1edbp ph\u1ee7 t\u1ed1t?<\/strong> A: Nguy\u00ean nh\u00e2n \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m ki\u1ec3m so\u00e1t s\u1ea5y k\u00e9m, qu\u00e1 nhi\u1ec1u \u0111\u1ed9 \u1ea9m trong c\u00e1c m\u00f4 h\u00ecnh, n\u00e9n c\u00e1t sai, nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed5 kh\u00f4ng ch\u00ednh x\u00e1c ho\u1eb7c ph\u00f9 h\u1ee3p k\u00e9m gi\u1eefa l\u1edbp ph\u1ee7 v\u00e0 lo\u1ea1i kim lo\u1ea1i.<\/p>\n<h2 id=\"partner-with-a-professional-lost-foam-casting-manufacturer-supplier\"><strong>\u0110\u1ed1i t\u00e1c v\u1edbi m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t chuy\u00ean nghi\u1ec7p &amp; Nh\u00e0 cung c\u1ea5p<\/strong><\/h2>\n<p>OC Technology l\u00e0 nh\u00e0 m\u00e1y \u0111\u00fac b\u1ecdt m\u1ea5t to\u00e0n quy tr\u00ecnh h\u00e0ng \u0111\u1ea7u v\u00e0 nh\u00e0 cung c\u1ea5p gi\u1ea3i ph\u00e1p EPC (K\u1ef9 thu\u1eadt-Mua s\u1eafm-X\u00e2y d\u1ef1ng) c\u00f3 tr\u1ee5 s\u1edf t\u1ea1i Trung Qu\u1ed1c. V\u1edbi h\u01a1n 15 n\u0103m kinh nghi\u1ec7m s\u00e2u s\u1eafc trong c\u00f4ng ngh\u1ec7 b\u1ecdt m\u1ea5t, d\u00e2y chuy\u1ec1n l\u1edbp ph\u1ee7 t\u1ef1 \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i, h\u1ec7 th\u1ed1ng ph\u00e2n t\u00e1n nhanh v\u00e0 ph\u00f2ng s\u1ea5y nhi\u1ec7t \u0111\u1ed9 ki\u1ec3m so\u00e1t, OC Technology cung c\u1ea5p \u0111\u00fac b\u1ecdt m\u1ea5t s\u1eaft, th\u00e9p v\u00e0 nh\u00f4m ch\u1ea5t l\u01b0\u1ee3ng h\u00e0ng \u0111\u1ea7u cho kh\u00e1ch h\u00e0ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi trong ng\u00e0nh \u00f4 t\u00f4, b\u01a1m &amp; van, m\u00e1y m\u00f3c v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u1eadn chuy\u1ec3n \u0111\u01b0\u1eddng s\u1eaft.<\/p>\n<p>L\u00e0 m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 nh\u00e0 cung c\u1ea5p \u0111\u00fac b\u1ecdt b\u1ecb m\u1ea5t \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn ISO 9001: 2015 v\u00e0 IATF 16949, OC Technology cung c\u1ea5p d\u1ecbch v\u1ee5 ho\u00e0n ch\u1ec9nh t\u1eeb thi\u1ebft k\u1ebf m\u1eabu, c\u00f4ng c\u1ee5, ph\u00e1t tri\u1ec3n l\u1edbp ph\u1ee7, s\u1ea3n xu\u1ea5t \u0111\u00fac, t\u1ea5t c\u1ea3 c\u00e1c c\u00e1ch \u0111\u1ec3 gia c\u00f4ng v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t.<\/p>\n<p><a style=\"text-decoration: underline;\" href=\"https:\/\/www.oc-epc.com\/vi\/lien-he\/\"><strong>Li\u00ean h\u1ec7 v\u1edbi OC Technology h\u00f4m nay<\/strong><\/a> for reliable, high-quality lost foam casting solutions. Email: <a style=\"text-decoration: underline;\" href=\"mailto:zyh@oc-epc.com\">zyh@oc-epc.com<\/a> ho\u1eb7c g\u1ecdi \u0111i\u1ec7n tho\u1ea1i 86 15988479417 M\u1ed9t y\u00eau c\u1ea7u, quan h\u1ec7 \u0111\u1ed1i t\u00e1c su\u1ed1t \u0111\u1eddi.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0110\u00fac b\u1ecdt b\u1ecb m\u1ea5t (EPC), \u0111\u00f4i khi \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u00fac m\u1eabu bay h\u01a1i, n\u1ed5i b\u1eadt l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch th\u1ef1c t\u1ebf v\u00e0 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng nh\u1ea5t \u0111\u1ec3 l\u00e0m c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i h\u00ecnh d\u1ea1ng g\u1ea7n l\u01b0\u1edbi ph\u1ee9c t\u1ea1p. Ch\u00eca kh\u00f3a th\u1ef1c s\u1ef1 \u0111\u1ec3 th\u00e0nh c\u00f4ng trong ph\u01b0\u01a1ng ph\u00e1p n\u00e0y n\u1eb1m trong vi\u1ec7c l\u1edbp ph\u1ee7 ch\u1ed1ng ch\u00e1y ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u01b0 th\u1ebf n\u00e0o tr\u00ean m\u00f4 h\u00ecnh EPS (polystyrene m\u1edf r\u1ed9ng). S\u01a1n n\u00e0y l\u00e0m nhi\u1ec1u h\u01a1n ch\u1ec9 [&hellip;]<\/p>","protected":false},"author":3,"featured_media":4700,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[160],"tags":[],"class_list":["post-4706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"jetpack_publicize_connections":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/posts\/4706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/comments?post=4706"}],"version-history":[{"count":1,"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/posts\/4706\/revisions"}],"predecessor-version":[{"id":4707,"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/posts\/4706\/revisions\/4707"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/media\/4700"}],"wp:attachment":[{"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/media?parent=4706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/categories?post=4706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oc-epc.com\/vi\/wp-json\/wp\/v2\/tags?post=4706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}