{"id":2239,"date":"2026-07-08T12:34:07","date_gmt":"2026-07-08T05:34:07","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/tieu-chuan-inox-304-316l-cho-day-chuyen-che-bien-thuc-pham-3\/"},"modified":"2026-07-08T12:34:07","modified_gmt":"2026-07-08T05:34:07","slug":"tieu-chuan-inox-304-316l-cho-day-chuyen-che-bien-thuc-pham-3","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/tieu-chuan-inox-304-316l-cho-day-chuyen-che-bien-thuc-pham-3\/","title":{"rendered":"Ti\u00eau chu\u1ea9n Inox 304 &#038; 316L cho d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2239&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0110\u00e1nh gi\u00e1&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 b\u00ecnh ch\u1ecdn)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Ti\u00eau chu\u1ea9n Inox 304 \\u0026amp; 316L cho d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">\u0110\u00e1nh gi\u00e1<\/span>\n    <\/div>\n    <\/div>\n<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-inox-304-vs-316l-khac-gi-de-chon-dung-ngay-tu-dau\">Inox 304 vs 316L: kh\u00e1c g\u00ec \u0111\u1ec3 ch\u1ecdn \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u<\/a><\/li>\n<li><a href=\"#toc-1-he-tieu-chuan-cot-loi-ap-dung-cho-day-chuyen-thuc-\">H\u1ec7 ti\u00eau chu\u1ea9n c\u1ed1t l\u00f5i \u00e1p d\u1ee5ng cho d\u00e2y chuy\u1ec1n th\u1ef1c ph\u1ea9m<\/a><\/li>\n<li><a href=\"#toc-2-thong-so-ky-thuat-khuyen-nghi-nhanh-cho-du-an\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt khuy\u1ebfn ngh\u1ecb nhanh cho d\u1ef1 \u00e1n<\/a><\/li>\n<li><a href=\"#toc-3-ung-dung-dien-hinh-304-vs-316l-trong-thuc-pham-vie\">\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh 304 vs 316L trong th\u1ef1c ph\u1ea9m Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-4-nham-be-mat-va-ve-sinh-vi-sao-ra-08-m-la-diem-ngot\">Nh\u00e1m b\u1ec1 m\u1eb7t v\u00e0 v\u1ec7 sinh: v\u00ec sao Ra \u22640,8 \u00b5m l\u00e0 \u201c\u0111i\u1ec3m ng\u1ecdt\u201d<\/a><\/li>\n<li><a href=\"#toc-5-thuc-hanh-han-ve-sinh-loi-hay-gap-va-cach-tranh\">Th\u1ef1c h\u00e0nh h\u00e0n v\u1ec7 sinh: l\u1ed7i hay g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-6-kiem-dinh-thu-nghiem-va-ho-so-tuan-thu\">Ki\u1ec3m \u0111\u1ecbnh, th\u1eed nghi\u1ec7m v\u00e0 h\u1ed3 s\u01a1 tu\u00e2n th\u1ee7<\/a><\/li>\n<li><a href=\"#toc-7-toi-uu-chi-phi-ma-van-dat-chuan\">T\u1ed1i \u01b0u chi ph\u00ed m\u00e0 v\u1eabn \u0111\u1ea1t chu\u1ea9n<\/a><\/li>\n<li><a href=\"#toc-8-checklist-nhanh-khi-dat-mua-vat-lieu\">Checklist nhanh khi \u0111\u1eb7t mua v\u1eadt li\u1ec7u<\/a><\/li>\n<li><a href=\"#toc-9-nguon-tham-khao-ky-thuat-chinh\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt ch\u00ednh<\/a><\/li>\n<li><a href=\"#toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox 304 v\u00e0 316L l\u00e0 hai m\u00e1c th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ee7 l\u1ef1c c\u1ee7a \u201cc\u00f4ng nghi\u1ec7p s\u1ea1ch\u201d nh\u1edd t\u00ednh tr\u01a1, b\u1ec1n \u0103n m\u00f2n v\u00e0 d\u1ec5 v\u1ec7 sinh. Trong d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, vi\u1ec7c tu\u00e2n th\u1ee7 \u0111\u00fang ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u, b\u1ec1 m\u1eb7t, \u1ed1ng v\u1ec7 sinh v\u00e0 h\u00e0n l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n th\u1ef1c ph\u1ea9m, \u0111\u1ed9 b\u1ec1n thi\u1ebft b\u1ecb v\u00e0 tu\u00e2n th\u1ee7 GMP\/HACCP. B\u00e0i vi\u1ebft n\u00e0y t\u1ed5ng h\u1ee3p h\u1ec7 ti\u00eau chu\u1ea9n, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 khuy\u1ebfn ngh\u1ecb th\u1ef1c t\u1ebf d\u00e0nh cho k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u v\u00e0 ch\u1ee7 x\u01b0\u1edfng t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h2 id=\"toc-0-inox-304-vs-316l-khac-gi-de-chon-dung-ngay-tu-dau\">Inox 304 vs 316L: kh\u00e1c g\u00ec \u0111\u1ec3 ch\u1ecdn \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u<\/h2>\n<p>&#8211; Th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh:<br \/>\n  &#8211; 304: ~18\u201320% Cr, 8\u201311% Ni, C \u22640,08%.<br \/>\n  &#8211; 316L: ~16\u201318% Cr, 10\u201314% Ni, 2\u20132,5% Mo, C \u22640,03% (L = low carbon ch\u1ed1ng nh\u1ea1y c\u1ea3m h\u00f3a).<br \/>\n&#8211; Ch\u1ed1ng \u0103n m\u00f2n:<br \/>\n  &#8211; 316L v\u01b0\u1ee3t tr\u1ed9i trong m\u00f4i tr\u01b0\u1eddng c\u00f3 Cl\u2212, mu\u1ed1i, axit h\u1eefu c\u01a1 (Mo t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7\/khe). Ch\u1ec9 s\u1ed1 PREN 304 ~18\u201319; 316L ~24 (cao h\u01a1n t\u1ed1t h\u01a1n).<br \/>\n&#8211; \u1ee8ng d\u1ee5ng khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; D\u00f9ng 304: bia \u2013 \u0111\u1ed3 u\u1ed1ng kh\u00f4ng m\u1eb7n, b\u1ed3n ch\u1ee9a kh\u00f4\/kh\u00ed tr\u01a1, k\u1ebft c\u1ea5u ngo\u00e0i v\u00f9ng \u01b0\u1edbt, m\u00e1ng\/gi\u00e1 \u0111\u1ee1.<br \/>\n  &#8211; D\u00f9ng 316L: n\u01b0\u1edbc m\u1eafm, n\u01b0\u1edbc t\u01b0\u01a1ng, \u0111\u1ed3 chua \u2013 n\u01b0\u1edbc mu\u1ed1i, s\u1ed1t\/c\u1ed3n nh\u1eb9, khu v\u1ef1c CIP\/axit, v\u00f9ng nhi\u1ec7t cao \u1ea9m v\u00e0 c\u00f3 Cl\u2212.<br \/>\n&#8211; V\u1eadt li\u1ec7u h\u00e0n t\u01b0\u01a1ng \u1ee9ng: ER308L (cho 304); ER316L (cho 316L).<\/p>\n<h2 id=\"toc-1-he-tieu-chuan-cot-loi-ap-dung-cho-day-chuyen-thuc-\">H\u1ec7 ti\u00eau chu\u1ea9n c\u1ed1t l\u00f5i \u00e1p d\u1ee5ng cho d\u00e2y chuy\u1ec1n th\u1ef1c ph\u1ea9m<\/h2>\n<h3>Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n<\/h3>\n<p>&#8211; EN 10088: M\u00e1c, th\u00e0nh ph\u1ea7n v\u00e0 t\u00ednh ch\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 (Ch\u00e2u \u00c2u).<br \/>\n&#8211; ASTM A240: T\u1ea5m\/cu\u1ed9n Inox cho n\u1ed3i, b\u1ed3n, v\u1ecf thi\u1ebft b\u1ecb.<br \/>\n&#8211; ASTM A276\/A479: Thanh tr\u00f2n, thanh d\u1eb9t, v\u1eadt li\u1ec7u tr\u1ee5c\/truy\u1ec1n \u0111\u1ed9ng.<br \/>\n&#8211; ASTM A312: \u1ed0ng h\u00e0n\/\u1ed1ng \u0111\u00fac c\u00f4ng nghi\u1ec7p (kh\u00f4ng ph\u1ea3i \u1ed1ng v\u1ec7 sinh chuy\u00ean d\u1ee5ng).<br \/>\n&#8211; EN 10204 3.1\/3.2: Ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u v\u00e0 truy xu\u1ea5t nhi\u1ec7t luy\u1ec7n.<\/p>\n<h3>\u1ed0ng, ph\u1ee5 ki\u1ec7n v\u00e0 k\u1ebft n\u1ed1i v\u1ec7 sinh<\/h3>\n<p>&#8211; ASTM A270 (Sanitary Tubing) v\u00e0 ISO 2037\/DIN 11850: \u1ed0ng v\u1ec7 sinh cho th\u1ef1c ph\u1ea9m, y\u00eau c\u1ea7u nh\u1eb5n b\u1ec1 m\u1eb7t v\u00e0 x\u1eed l\u00fd nhi\u1ec7t.<br \/>\n&#8211; ASME BPE (Bioprocessing Equipment): Y\u00eau c\u1ea7u cao nh\u1ea5t v\u1ec1 b\u1ec1 m\u1eb7t\/\u0111\u1ed9 s\u1ea1ch cho d\u01b0\u1ee3c \u2013 \u00e1p d\u1ee5ng t\u1ed1t cho th\u1ef1c ph\u1ea9m c\u00f3 r\u1ee7i ro cao.<br \/>\n&#8211; ISO 2852: Kh\u1edbp n\u1ed1i clamp (tri-clamp) v\u1ec7 sinh.<br \/>\n&#8211; 3-A Sanitary Standards: Y\u00eau c\u1ea7u thi\u1ebft k\u1ebf\/ph\u1ee5 ki\u1ec7n cho ng\u00e0nh s\u1eefa \u2013 tham chi\u1ebfu r\u1ed9ng cho th\u1ef1c ph\u1ea9m n\u00f3i chung.<br \/>\n&#8211; EHEDG Guidelines: Thi\u1ebft k\u1ebf v\u1ec7 sinh \u0111\u1ec3 d\u1ec5 CIP\/SIP, tr\u00e1nh khe k\u1ebd v\u00e0 \u201cdead-leg\u201d.<\/p>\n<h3>B\u1ec1 m\u1eb7t, nh\u00e1m v\u00e0 x\u1eed l\u00fd ho\u00e0n thi\u1ec7n<\/h3>\n<p>&#8211; Ph\u00e2n h\u1ea1ng b\u1ec1 m\u1eb7t th\u00f4ng d\u1ee5ng: 2B\/BA (t\u1eeb nh\u00e0 m\u00e1y), No.4 (m\u00e0i hairline), c\u01a1 kh\u00ed \u0111\u00e1nh b\u00f3ng, \u0111i\u1ec7n h\u00f3a (electropolish).<br \/>\n&#8211; Nh\u00e1m b\u1ec1 m\u1eb7t v\u00f9ng ti\u1ebfp x\u00fac s\u1ea3n ph\u1ea9m:<br \/>\n  &#8211; Th\u1ef1c ph\u1ea9m ti\u00eau chu\u1ea9n: Ra \u22640,8 \u00b5m (ISO 4287\/4288).<br \/>\n  &#8211; \u1ee8ng d\u1ee5ng nh\u1ea1y\/\u0111\u1ed9 s\u1ea1ch cao ho\u1eb7c nh\u1edbt: Ra \u22640,5 \u00b5m (n\u00ean \u0111i\u1ec7n h\u00f3a).<br \/>\n&#8211; T\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a: ASTM A380\/A967 \u0111\u1ec3 lo\u1ea1i b\u1ecf x\u1ec9 h\u00e0n\/oxi h\u00f3a v\u00e0 ph\u1ee5c h\u1ed3i l\u1edbp th\u1ee5 \u0111\u1ed9ng Cr2O3.<\/p>\n<h3>H\u00e0n v\u1ec7 sinh v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec7t m\u00e0u<\/h3>\n<p>&#8211; Th\u1ef1c h\u00e0nh h\u00e0n: TIG\/GTAW, c\u00f3 che kh\u00ed m\u1eb7t sau (back purging) b\u1eb1ng Ar, d\u00e2y h\u00e0n ph\u00f9 h\u1ee3p m\u00e1c th\u00e9p, ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0o \u0111\u1ec3 h\u1ea1n ch\u1ebf bi\u1ebfn m\u00e0u.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n tham chi\u1ebfu: AWS D18.1 (h\u00e0n v\u1ec7 sinh), ASME BPE (ch\u1ea5p nh\u1eadn bavia, \u0111\u1ed9 l\u00f5m\/l\u1ed3i), ki\u1ec3m tra n\u1ed9i soi (borescope).<br \/>\n&#8211; X\u1eed l\u00fd sau h\u00e0n: t\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a, lo\u1ea1i b\u1ecf v\u1ebft nhi\u1ec7t m\u00e0u ho\u00e0n to\u00e0n trong v\u00f9ng ti\u1ebfp x\u00fac s\u1ea3n ph\u1ea9m; \u0111\u00e1nh b\u00f3ng ph\u1ee5c h\u1ed3i Ra theo thi\u1ebft k\u1ebf.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ferrite kim lo\u1ea1i m\u1ed1i h\u00e0n (\u0111\u1eb7c bi\u1ec7t 316L) \u0111\u1ec3 c\u00e2n b\u1eb1ng n\u1ee9t n\u00f3ng v\u00e0 ch\u1ed1ng \u0103n m\u00f2n (theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t que\/d\u00e2y h\u00e0n).<\/p>\n<h3>Thi\u1ebft k\u1ebf v\u1ec7 sinh v\u00e0 kh\u1ea3 n\u0103ng l\u00e0m s\u1ea1ch<\/h3>\n<p>&#8211; Theo EHEDG\/3-A:<br \/>\n  &#8211; Tr\u00e1nh khe k\u1ebd, ren l\u1ed9 v\u00e0o s\u1ea3n ph\u1ea9m; \u01b0u ti\u00ean clamp, m\u1eb7t b\u00edch v\u1ec7 sinh.<br \/>\n  &#8211; \u0110\u1ed9 d\u1ed1c tho\u00e1t \u22651\u20132% cho \u0111\u01b0\u1eddng \u1ed1ng\/thi\u1ebft b\u1ecb tho\u00e1t s\u1ea1ch.<br \/>\n  &#8211; H\u1ea1n ch\u1ebf \u201cdead-leg\u201d: chi\u1ec1u d\u00e0i nh\u00e1nh \u22641,5 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh trong.<br \/>\n  &#8211; B\u1ecbt k\u00edn b\u1eb1ng gio\u0103ng PTFE\/EPDM \u0111\u1ea1t chu\u1ea9n ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m (FDA\/EU), \u0111\u00fang k\u00edch c\u1ee1 v\u00e0 n\u00e9n \u0111\u1ec1u.<br \/>\n&#8211; T\u01b0\u01a1ng th\u00edch CIP\/SIP:<br \/>\n  &#8211; CIP ki\u1ec1m (NaOH 1\u20132% \u1edf 60\u201380\u00b0C) v\u00e0 axit (HNO3\/H3PO4 0,5\u20131%) ph\u1ed5 bi\u1ebfn.<br \/>\n  &#8211; SIP: h\u01a1i b\u00e3o h\u00f2a 121\u2013135\u00b0C; \u01b0u ti\u00ean 316L cho v\u00f9ng ti\u1ebfp x\u00fac h\u01a1i\/ki\u1ec1m\/Cl\u2212 l\u1eb7p l\u1ea1i.<\/p>\n<h2 id=\"toc-2-thong-so-ky-thuat-khuyen-nghi-nhanh-cho-du-an\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt khuy\u1ebfn ngh\u1ecb nhanh cho d\u1ef1 \u00e1n<\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u:<br \/>\n  &#8211; Th\u00e2n b\u1ed3n\/\u0111\u01b0\u1eddng \u1ed1ng ti\u1ebfp x\u00fac s\u1ea3n ph\u1ea9m c\u00f3 mu\u1ed1i\/axit: 316L (EN 1.4404).<br \/>\n  &#8211; K\u1ebft c\u1ea5u\/khung, n\u1eafp che, b\u00e0n thao t\u00e1c kh\u00f4: 304 (EN 1.4301).<br \/>\n&#8211; \u1ed0ng v\u00e0 ph\u1ee5 ki\u1ec7n:<br \/>\n  &#8211; \u1ed0ng v\u1ec7 sinh ASTM A270\/ISO 2037, b\u1ec1 m\u1eb7t trong Ra \u22640,8 \u00b5m; ch\u1ecdn BA\/\u0111\u00e1nh b\u00f3ng c\u01a1 kh\u00ed; v\u1edbi \u1ee9ng d\u1ee5ng kh\u1eaft khe ch\u1ecdn ASME BPE SF1\/SF4.<br \/>\n  &#8211; K\u1ebft n\u1ed1i ISO 2852 (clamp), ph\u1ee5 ki\u1ec7n theo DIN 11850 ho\u1eb7c t\u01b0\u01a1ng th\u00edch 3-A.<br \/>\n&#8211; B\u1ec1 m\u1eb7t:<br \/>\n  &#8211; B\u1ed3n\/\u1ed1ng b\u00ean trong: 2B\/BA + \u0111\u00e1nh b\u00f3ng \u0111\u1ea1t Ra \u22640,8 \u00b5m; s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1ed9 b\u00e1m d\u00ednh cao: \u0111i\u1ec7n h\u00f3a \u0111\u1ea1t Ra \u22640,5 \u00b5m.<br \/>\n  &#8211; B\u00ean ngo\u00e0i: No.4\/2B t\u00f9y y\u00eau c\u1ea7u th\u1ea9m m\u1ef9 v\u00e0 v\u1ec7 sinh.<br \/>\n&#8211; H\u00e0n:<br \/>\n  &#8211; Quy tr\u00ecnh WPS\/PQR cho TIG c\u00f3 back purge; d\u00e2y ER316L\/ER308L \u0111\u00fang m\u00e1c; ki\u1ec3m tra borescope 100% c\u00e1c m\u1ed1i h\u00e0n s\u1ea3n ph\u1ea9m ch\u00ednh.<br \/>\n  &#8211; T\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ASTM A967; l\u01b0u h\u1ed3 s\u01a1 l\u00f4 h\u00f3a ch\u1ea5t.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng:<br \/>\n  &#8211; Ch\u1ee9ng ch\u1ec9 EN 10204 3.1 \u0111\u1ea7y \u0111\u1ee7, truy xu\u1ea5t heat number.<br \/>\n  &#8211; PMI (Positive Material Identification) ng\u1eabu nhi\u00ean \u226510% l\u00f4.<br \/>\n  &#8211; \u0110o nh\u00e1m Ra b\u1eb1ng m\u00e1y theo ISO 4287\/4288; bi\u00ean b\u1ea3n ki\u1ec3m tra h\u00e0n theo AWS D18.1\/ASME BPE.<\/p>\n<h2 id=\"toc-3-ung-dung-dien-hinh-304-vs-316l-trong-thuc-pham-vie\">\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh 304 vs 316L trong th\u1ef1c ph\u1ea9m Vi\u1ec7t Nam<\/h2>\n<p>&#8211; 304 ph\u00f9 h\u1ee3p:<br \/>\n  &#8211; S\u1eefa t\u01b0\u01a1i, bia, n\u01b0\u1edbc gi\u1ea3i kh\u00e1t kh\u00f4ng ch\u1ee9a Cl\u2212 cao; b\u0103ng t\u1ea3i, b\u00e0n thao t\u00e1c, v\u1ecf t\u1ee7.<br \/>\n  &#8211; Khoang ch\u1ee9a kh\u00f4, sil\u00f4 \u0111\u01b0\u1eddng\/b\u1ed9t, khung m\u00e1y.<br \/>\n&#8211; 316L b\u1eaft bu\u1ed9c\/khuy\u1ebfn ngh\u1ecb m\u1ea1nh:<br \/>\n  &#8211; N\u01b0\u1edbc m\u1eafm, n\u01b0\u1edbc t\u01b0\u01a1ng, d\u01b0a chua\/n\u01b0\u1edbc mu\u1ed1i, s\u1ed1t c\u00e0 chua, n\u01b0\u1edbc tr\u00e1i c\u00e2y c\u00f4 \u0111\u1eb7c, s\u1ea3n ph\u1ea9m c\u00f3 pH th\u1ea5p ho\u1eb7c gia c\u00f4ng CIP\/axit th\u01b0\u1eddng xuy\u00ean.<br \/>\n  &#8211; Khu v\u1ef1c trao \u0111\u1ed5i nhi\u1ec7t, \u0111\u01b0\u1eddng \u1ed1ng h\u01a1i\/SIP, b\u1ed3n ho\u00e0n nguy\u00ean CIP.<\/p>\n<h2 id=\"toc-4-nham-be-mat-va-ve-sinh-vi-sao-ra-08-m-la-diem-ngot\">Nh\u00e1m b\u1ec1 m\u1eb7t v\u00e0 v\u1ec7 sinh: v\u00ec sao Ra \u22640,8 \u00b5m l\u00e0 \u201c\u0111i\u1ec3m ng\u1ecdt\u201d<\/h2>\n<p>&#8211; D\u01b0\u1edbi 0,8 \u00b5m Ra, vi khu\u1ea9n\/\u0111\u00f3ng c\u1eb7n b\u00e1m d\u00ednh gi\u1ea3m r\u00f5 r\u1ec7t, hi\u1ec7u qu\u1ea3 CIP t\u0103ng, th\u1eddi gian\/chi ph\u00ed h\u00f3a ch\u1ea5t gi\u1ea3m.<br \/>\n&#8211; \u0110i\u1ec7n h\u00f3a gi\u00fap:<br \/>\n  &#8211; Gi\u1ea3m \u0111\u1ec9nh nh\u00e1m si\u00eau m\u1ecbn, b\u1ec1 m\u1eb7t gi\u00e0u Cr, t\u0103ng th\u1ee5 \u0111\u1ed9ng \u2013 h\u1eefu \u00edch cho n\u01b0\u1edbc m\u1eafm\/n\u01b0\u1edbc mu\u1ed1i.<br \/>\n&#8211; L\u01b0u \u00fd:<br \/>\n  &#8211; Nh\u00e1m \u0111o theo ISO 4287\/4288, ki\u1ec3m tra theo l\u01b0\u1edbi \u0111i\u1ec3m \u0111\u1ea1i di\u1ec7n; kh\u00f4ng ch\u1ec9 \u201cc\u1ea3m gi\u00e1c tay\u201d.<br \/>\n  &#8211; Kh\u00f4ng \u0111\u00e1nh b\u00f3ng qu\u00e1 m\u1ee9c g\u00e2y \u201ccapped grain\u201d d\u1ec5 n\u1ee9t \u0103n m\u00f2n \u1ee9ng su\u1ea5t.<\/p>\n<h2 id=\"toc-5-thuc-hanh-han-ve-sinh-loi-hay-gap-va-cach-tranh\">Th\u1ef1c h\u00e0nh h\u00e0n v\u1ec7 sinh: l\u1ed7i hay g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/h2>\n<p>&#8211; Kh\u00f4ng che kh\u00ed m\u1eb7t sau khi\u1ebfn m\u1ed1i h\u00e0n b\u1ecb oxy h\u00f3a (\u201c\u0111\u01b0\u1eddng m\u00eda\u201d): t\u0103ng nguy c\u01a1 r\u1ed7. Gi\u1ea3i ph\u00e1p: back purging, monitor O2 <50 ppm tr\u01b0\u1edbc khi h\u00e0n.\n- L\u1eabn s\u1eaft cacbon t\u1eeb d\u1ee5ng c\u1ee5: t\u1ea1o t\u00e2m r\u1ec9 n\u00e2u. Gi\u1ea3i ph\u00e1p: d\u1ee5ng c\u1ee5 ri\u00eang cho Inox, v\u1ec7 sinh tr\u01b0\u1edbc h\u00e0n, passivation sau h\u00e0n.\n- Ch\u1ecdn sai d\u00e2y h\u00e0n (308L cho 316L): gi\u1ea3m Mo c\u1ee7a m\u1ed1i h\u00e0n. Gi\u1ea3i ph\u00e1p: theo m\u00e1c n\u1ec1n, \u01b0u ti\u00ean 316L khi h\u00e0n h\u1ed7n h\u1ee3p.\n- Bavia\/l\u00f5m h\u00e0n v\u01b0\u1ee3t chu\u1ea9n: t\u1ea1o khe tr\u00fa \u1ea9n vi sinh. Gi\u1ea3i ph\u00e1p: m\u00e0i s\u1eeda \u2013 \u0111\u00e1nh b\u00f3ng \u2013 ki\u1ec3m tra n\u1ed9i soi theo AWS D18.1\/ASME BPE.\n\n\n\n<h2 id=\"toc-6-kiem-dinh-thu-nghiem-va-ho-so-tuan-thu\">Ki\u1ec3m \u0111\u1ecbnh, th\u1eed nghi\u1ec7m v\u00e0 h\u1ed3 s\u01a1 tu\u00e2n th\u1ee7<\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u:<br \/>\n  &#8211; MTC 3.1, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh theo EN 10088\/ASTM.<br \/>\n  &#8211; PMI x\u00e1c nh\u1eadn m\u00e1c; \u0111\u1ed9 ferrite m\u1ed1i h\u00e0n khi c\u1ea7n.<br \/>\n&#8211; B\u1ec1 m\u1eb7t\/h\u00e0n:<br \/>\n  &#8211; Bi\u00ean b\u1ea3n t\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a (ASTM A967\/A380).<br \/>\n  &#8211; B\u00e1o c\u00e1o nh\u00e1m Ra, \u1ea3nh n\u1ed9i soi m\u1ed1i h\u00e0n, b\u1ea3n \u0111\u1ed3 h\u00e0n (weld map).<br \/>\n&#8211; V\u1ec7 sinh \u2013 v\u1eadn h\u00e0nh:<br \/>\n  &#8211; Quy tr\u00ecnh CIP\/SIP \u0111\u01b0\u1ee3c th\u1ea9m \u0111\u1ecbnh.<br \/>\n  &#8211; Thi\u1ebft k\u1ebf theo EHEDG\/3-A; ki\u1ec3m tra \u201cdead-leg\u201d.<br \/>\n&#8211; Khi nghi\u1ec7m thu kh\u00e1ch h\u00e0ng qu\u1ed1c t\u1ebf\/d\u01b0\u1ee3c ph\u1ea9m: c\u00e2n nh\u1eafc n\u00e2ng chu\u1ea9n ASME BPE, d\u00f9ng \u1ed1ng BPE v\u00e0 electropolish.<\/p>\n<h2 id=\"toc-7-toi-uu-chi-phi-ma-van-dat-chuan\">T\u1ed1i \u01b0u chi ph\u00ed m\u00e0 v\u1eabn \u0111\u1ea1t chu\u1ea9n<\/h2>\n<p>&#8211; Ch\u1ec9 d\u00f9ng 316L cho v\u00f9ng ti\u1ebfp x\u00fac s\u1ea3n ph\u1ea9m\/Cl\u2212\/CIP; d\u00f9ng 304 cho k\u1ebft c\u1ea5u v\u00e0 v\u00f9ng kh\u00f4.<br \/>\n&#8211; \u01afu ti\u00ean \u1ed1ng v\u1ec7 sinh ASTM A270\/ISO 2037 cho \u0111\u01b0\u1eddng s\u1ea3n ph\u1ea9m; c\u00e1c tuy\u1ebfn ph\u1ee5 tr\u1ee3 (kh\u00f4ng ti\u1ebfp x\u00fac s\u1ea3n ph\u1ea9m) c\u00f3 th\u1ec3 d\u00f9ng A312 \u0111\u1ec3 ti\u1ebft ki\u1ec7m.<br \/>\n&#8211; Ch\u1ecdn ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t theo r\u1ee7i ro v\u1ec7 sinh: Ra \u22640,8 \u00b5m \u0111\u1ee7 cho \u0111a s\u1ed1; ch\u1ec9 electropolish khi s\u1ea3n ph\u1ea9m d\u00ednh\/nh\u1ea1y ho\u1eb7c y\u00eau c\u1ea7u ki\u1ec3m \u0111\u1ecbnh cao.<br \/>\n&#8211; L\u00e0m \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u kh\u00e2u h\u00e0n v\u00e0 passivation gi\u00fap gi\u1ea3m s\u1ef1 c\u1ed1 r\u1ed7 \u2013 chi ph\u00ed b\u1ea3o tr\u00ec v\u1ec1 sau th\u1ea5p h\u01a1n nhi\u1ec1u.<\/p>\n<h2 id=\"toc-8-checklist-nhanh-khi-dat-mua-vat-lieu\">Checklist nhanh khi \u0111\u1eb7t mua v\u1eadt li\u1ec7u<\/h2>\n<p>&#8211; M\u00e1c th\u00e9p: 304\/316L \u0111\u00fang m\u00e3 EN 1.4301\/1.4404, ch\u1ee9ng ch\u1ec9 EN 10204 3.1.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n \u1ed1ng: ASTM A270\/ISO 2037\/DIN 11850; n\u00eau r\u00f5 y\u00eau c\u1ea7u Ra ID\/OD.<br \/>\n&#8211; Ph\u1ee5 ki\u1ec7n\/k\u1ebft n\u1ed1i: ISO 2852 clamp, ti\u00eau chu\u1ea9n 3-A\/EHEDG compliant.<br \/>\n&#8211; B\u1ec1 m\u1eb7t: n\u1ed9i b\u1ed9 \u0111\u1ea1t Ra y\u00eau c\u1ea7u; ghi r\u00f5 \u0111\u00e1nh b\u00f3ng\/\u0111i\u1ec7n h\u00f3a.<br \/>\n&#8211; H\u00e0n: Y\u00eau c\u1ea7u nh\u00e0 th\u1ea7u c\u00f3 WPS\/PQR TIG v\u1ec7 sinh, n\u1ed9i soi 100%, passivation.<br \/>\n&#8211; Ki\u1ec3m tra: PMI, Ra, bi\u00ean b\u1ea3n t\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a, \u1ea3nh m\u1ed1i h\u00e0n, ch\u1ee9ng t\u1eeb CIP\/SIP (n\u1ebfu nghi\u1ec7m thu).<\/p>\n<h2 id=\"toc-9-nguon-tham-khao-ky-thuat-chinh\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt ch\u00ednh<\/h2>\n<p>&#8211; ASTM A240, A276\/A479, A312: S\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 c\u00e1n v\u00e0 \u1ed1ng c\u00f4ng nghi\u1ec7p \u2013 ASTM International.<br \/>\n&#8211; ASTM A270: Sanitary Tubing \u2013 ASTM International.<br \/>\n&#8211; ASME BPE: Bioprocessing Equipment Standard \u2013 ASME.<br \/>\n&#8211; AWS D18.1: Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary Applications \u2013 AWS.<br \/>\n&#8211; EN 10088, EN 10204: Th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u \u2013 CEN.<br \/>\n&#8211; ISO 2037, DIN 11850: \u1ed0ng v\u1ec7 sinh cho th\u1ef1c ph\u1ea9m \u2013 ISO\/DIN.<br \/>\n&#8211; ISO 2852: Clamp couplings for use with sanitary tube \u2013 ISO.<br \/>\n&#8211; ISO 4287\/4288: Tham s\u1ed1 nh\u00e1m b\u1ec1 m\u1eb7t v\u00e0 quy tr\u00ecnh \u0111o \u2013 ISO.<br \/>\n&#8211; 3-A Sanitary Standards, Inc. (3-A SSI): Ti\u00eau chu\u1ea9n v\u1ec7 sinh cho thi\u1ebft b\u1ecb ng\u00e0nh s\u1eefa\/th\u1ef1c ph\u1ea9m.<br \/>\n&#8211; EHEDG Guidelines: H\u01b0\u1edbng d\u1eabn thi\u1ebft k\u1ebf v\u1ec7 sinh \u2013 European Hygienic Engineering &#038; Design Group.<br \/>\n&#8211; EU Regulation 1935\/2004 v\u1ec1 v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m; \u201cMetals and alloys used in food contact materials\u201d \u2013 Council of Europe guidance.<\/p>\n<h2 id=\"toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Ch\u1ecdn \u0111\u00fang gi\u1eefa 304 v\u00e0 316L, tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n \u1ed1ng\/ph\u1ee5 ki\u1ec7n v\u1ec7 sinh (ASTM A270, ISO 2037, ISO 2852), ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t chu\u1ea9n (Ra \u22640,8 \u00b5m), c\u00f9ng h\u00e0n TIG c\u00f3 back purge v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ASTM A967 l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 d\u00e2y chuy\u1ec1n th\u1ef1c ph\u1ea9m \u0111\u1ea1t an to\u00e0n, b\u1ec1n \u0103n m\u00f2n v\u00e0 d\u1ec5 l\u00e0m s\u1ea1ch. V\u1edbi m\u00f4i tr\u01b0\u1eddng c\u00f3 mu\u1ed1i\/axit ho\u1eb7c CIP kh\u1eaft khe, 316L l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u; 304 v\u1eabn kinh t\u1ebf v\u00e0 ph\u00f9 h\u1ee3p cho v\u00f9ng kh\u00f4\/k\u1ebft c\u1ea5u. Chu\u1ea9n h\u00f3a ki\u1ec3m \u0111\u1ecbnh (PMI, Ra, n\u1ed9i soi h\u00e0n, MTC 3.1) gi\u00fap d\u1ef1 \u00e1n th\u00f4ng su\u1ed1t nghi\u1ec7m thu trong n\u01b0\u1edbc v\u00e0 xu\u1ea5t kh\u1ea9u.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n chi ti\u1ebft theo s\u1ea3n ph\u1ea9m, h\u00f3a ch\u1ea5t CIP v\u00e0 ng\u00e2n s\u00e1ch c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb m\u00e1c th\u00e9p, b\u1ec1 m\u1eb7t v\u00e0 ti\u00eau chu\u1ea9n ph\u00f9 h\u1ee3p, k\u00e8m b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u, b\u1ec1 m\u1eb7t, \u1ed1ng v\u1ec7 sinh, h\u00e0n v\u00e0 ki\u1ec3m \u0111\u1ecbnh cho Inox 304 &#038; 316L trong ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m: ASTM A270, 3-A, EHEDG, ASME BPE.<\/p>\n","protected":false},"author":7,"featured_media":1020,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2239","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=2239"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2239\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1020"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}