{"id":1794,"date":"2026-03-18T00:35:34","date_gmt":"2026-03-17T17:35:34","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/tieu-chuan-inox-304-316l-cho-day-chuyen-che-bien-thuc-pham-2\/"},"modified":"2026-03-18T00:35:34","modified_gmt":"2026-03-17T17:35:34","slug":"tieu-chuan-inox-304-316l-cho-day-chuyen-che-bien-thuc-pham-2","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/tieu-chuan-inox-304-316l-cho-day-chuyen-che-bien-thuc-pham-2\/","title":{"rendered":"Ti\u00eau chu\u1ea9n Inox 304\/316L cho d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-khi-nao-chon-304-khi-nao-chon-316l\">Khi n\u00e0o ch\u1ecdn 304, khi n\u00e0o ch\u1ecdn 316L?<\/a><\/li>\n<li><a href=\"#toc-1-he-thong-tieu-chuan-vat-lieu-ap-dung-cho-thuc-pham\">H\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u \u00e1p d\u1ee5ng cho th\u1ef1c ph\u1ea9m<\/a><\/li>\n<li><a href=\"#toc-2-tuan-thu-phap-ly-va-chung-nhan-lien-quan\">Tu\u00e2n th\u1ee7 ph\u00e1p l\u00fd v\u00e0 ch\u1ee9ng nh\u1eadn li\u00ean quan<\/a><\/li>\n<li><a href=\"#toc-3-cac-chi-tieu-kiem-soat-chat-luong-bat-buoc\">C\u00e1c ch\u1ec9 ti\u00eau ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng b\u1eaft bu\u1ed9c<\/a><\/li>\n<li><a href=\"#toc-4-lua-chon-theo-moi-truong-san-pham-va-hoa-chat-ve-s\">L\u1ef1a ch\u1ecdn theo m\u00f4i tr\u01b0\u1eddng s\u1ea3n ph\u1ea9m v\u00e0 ho\u00e1 ch\u1ea5t v\u1ec7 sinh<\/a><\/li>\n<li><a href=\"#toc-5-checklist-ky-thuat-khi-dat-hang-inox-cho-day-chuye\">Checklist k\u1ef9 thu\u1eadt khi \u0111\u1eb7t h\u00e0ng inox cho d\u00e2y chuy\u1ec1n th\u1ef1c ph\u1ea9m<\/a><\/li>\n<li><a href=\"#toc-6-loi-pho-bien-va-cach-tranh\">L\u1ed7i ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-7-vi-du-nhanh-theo-ung-dung\">V\u00ed d\u1ee5 nhanh theo \u1ee9ng d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-8-bao-tri-ve-sinh-de-giu-thu-dong-ben\">B\u1ea3o tr\u00ec, v\u1ec7 sinh \u0111\u1ec3 gi\u1eef th\u1ee5 \u0111\u1ed9ng b\u1ec1n<\/a><\/li>\n<li><a href=\"#toc-9-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/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 \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i nh\u1ea5t trong d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m nh\u1edd kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, v\u1ec7 sinh v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 kh\u00ed. B\u00e0i vi\u1ebft n\u00e0y t\u1ed5ng h\u1ee3p, h\u1ec7 th\u1ed1ng ho\u00e1 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt quan tr\u1ecdng \u0111\u1ec3 l\u1ef1a ch\u1ecdn, ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 thi c\u00f4ng inox 304\/316L trong m\u00f4i tr\u01b0\u1eddng th\u1ef1c ph\u1ea9m. \u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a ch\u1ee7 \u0111\u1ec1 Inox trong C\u00f4ng nghi\u1ec7p S\u1ea1ch, nh\u01b0ng n\u1ed9i dung t\u1eadp trung ho\u00e0n to\u00e0n v\u00e0o ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u cho th\u1ef1c ph\u1ea9m.<\/p>\n<h2 id=\"toc-0-khi-nao-chon-304-khi-nao-chon-316l\">Khi n\u00e0o ch\u1ecdn 304, khi n\u00e0o ch\u1ecdn 316L?<\/h2>\n<p>&#8211; Th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh (theo EN 10088\/ASTM):<br \/>\n  &#8211; 304\/304L: Cr 17.5\u201319.5%, Ni 8\u201310.5%; 304L c\u00f3 C \u2264 0.03% \u0111\u1ec3 h\u1ea1n ch\u1ebf nh\u1ea1y c\u1ea3m ho\u00e1 khi h\u00e0n.<br \/>\n  &#8211; 316L: Cr 16.5\u201318.5%, Ni 10\u201313%, Mo 2.0\u20132.5%, C \u2264 0.03%; Mo t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7\/pitting do ion Cl-.<br \/>\n&#8211; Ch\u1ec9 s\u1ed1 ch\u1ed1ng \u0103n m\u00f2n c\u1ee5c b\u1ed9 PREN = %Cr + 3.3\u00d7%Mo + 16\u00d7%N:<br \/>\n  &#8211; 304\/304L: PREN ~ 18\u201319.5 (m\u00f4i tr\u01b0\u1eddng \u00edt Cl-).<br \/>\n  &#8211; 316L: PREN ~ 23\u201324 (m\u00f4i tr\u01b0\u1eddng c\u00f3 Cl-, axit h\u1eefu c\u01a1, n\u01b0\u1edbc mu\u1ed1i, n\u01b0\u1edbc bi\u1ec3n m\u00f9 m\u1eb7n).<br \/>\n&#8211; \u1ee8ng d\u1ee5ng khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; D\u00f9ng 304\/304L cho: s\u1eefa, \u0111\u1ed3 u\u1ed1ng \u00edt m\u1eb7n\/axit nh\u1eb9, khu v\u1ef1c kh\u00f4, CIP kh\u00f4ng c\u00f3 chlorine, nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh.<br \/>\n  &#8211; D\u00f9ng 316L cho: n\u01b0\u1edbc m\u1eafm, n\u01b0\u1edbc s\u1ed1t m\u1eb7n, d\u01b0a chua\/axit, h\u1ea3i s\u1ea3n, khu v\u1ef1c ven bi\u1ec3n, CIP c\u00f3 oxy ho\u00e1\/ch\u1ee9a Cl-, nhi\u1ec7t \u0111\u1ed9 cao.<br \/>\n  &#8211; N\u1ebfu Cl- r\u1ea5t cao\/b\u1ed1c h\u01a1i mu\u1ed1i li\u00ean t\u1ee5c: c\u00e2n nh\u1eafc duplex 2205 (ngo\u00e0i ph\u1ea1m vi b\u00e0i), nh\u01b0ng 316L v\u1eabn l\u00e0 ti\u00eau chu\u1ea9n ph\u1ed5 th\u00f4ng trong th\u1ef1c ph\u1ea9m \u01b0\u1edbt.<\/p>\n<h2 id=\"toc-1-he-thong-tieu-chuan-vat-lieu-ap-dung-cho-thuc-pham\">H\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u \u00e1p d\u1ee5ng cho th\u1ef1c ph\u1ea9m<\/h2>\n<h3>T\u1ea5m\/l\u00e1, cu\u1ed9n (sheet\/plate\/coil)<\/h3>\n<p>&#8211; Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u: ASTM A240 (plate, sheet, strip), EN 10088-2 (th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh, tr\u1ea1ng th\u00e1i b\u1ec1 m\u1eb7t).<br \/>\n&#8211; Tr\u1ea1ng th\u00e1i b\u1ec1 m\u1eb7t khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; 2B: th\u00f4ng d\u1ee5ng cho b\u1ed3n, v\u1ecf m\u00e1y; s\u1ea1ch, d\u1ec5 v\u1ec7 sinh.<br \/>\n  &#8211; BA (bright annealed) ho\u1eb7c No.4\/2J: khi y\u00eau c\u1ea7u th\u1ea9m m\u1ef9 ho\u1eb7c \u0111\u1ed9 s\u1ea1ch cao h\u01a1n.<br \/>\n&#8211; C\u01a1 t\u00ednh \u0111i\u1ec3n h\u00ecnh sau \u1ee7:<br \/>\n  &#8211; 304L: Rp0.2 \u2265 170\u2013200 MPa; Rm ~ 520\u2013720 MPa; A% \u2265 40.<br \/>\n  &#8211; 316L: Rp0.2 \u2265 170\u2013200 MPa; Rm ~ 485\u2013620 MPa; A% \u2265 40.<\/p>\n<h3>\u1ed0ng, \u1ed1ng v\u1ec7 sinh (process tubing\/pipe)<\/h3>\n<p>&#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p: ASTM A312 (pipe, h\u00e0n ho\u1eb7c \u0111\u00fac li\u1ec1n), ASTM A269 (tubing t\u1ed5ng d\u1ee5ng).<br \/>\n&#8211; \u1ed0ng v\u1ec7 sinh\/sanitary:<br \/>\n  &#8211; ASTM A270 (Sanitary Tubing), khuy\u1ebfn ngh\u1ecb lo\u1ea1i S2 (welded, cold worked, annealed) v\u1edbi:<br \/>\n    &#8211; B\u00ean trong s\u1ea1ch, h\u1ea1t h\u00e0n m\u00e0i ph\u1eb3ng; b\u1ec1 m\u1eb7t ID\/OD \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch, c\u00f3 th\u1ec3 \u0111\u00e1nh b\u00f3ng.<br \/>\n    &#8211; Tu\u1ef3 c\u1ea5p ho\u00e0n thi\u1ec7n: ID Ra \u2264 0.8 \u00b5m (32 \u00b5in) cho \u0111a s\u1ed1 th\u1ef1c ph\u1ea9m; \u2264 0.4 \u00b5m (15 \u00b5in) khi y\u00eau c\u1ea7u v\u1ec7 sinh r\u1ea5t cao.<br \/>\n  &#8211; EN 10357 (thay th\u1ebf DIN 11850), ISO 2037: \u1ed1ng inox cho c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m.<br \/>\n&#8211; Ki\u1ec3m tra \u0111i\u1ec3n h\u00ecnh: test thu\u1ef7 l\u1ef1c\/eddy current, ki\u1ec3m k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 b\u1ea7u \u0111\u1ea7u, ki\u1ec3m so\u00e1t b\u1ec1 m\u1eb7t ID.<\/p>\n<h3>Ph\u1ee5 ki\u1ec7n, kh\u1edbp n\u1ed1i, clamp<\/h3>\n<p>&#8211; Ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn:<br \/>\n  &#8211; ISO 2852 (Clamp unions), DIN 11851\/11864, SMS 1145.<br \/>\n  &#8211; V\u1eadt li\u1ec7u th\u00e2n: 304\/316L; \u01b0u ti\u00ean 316L \u1edf m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n\/CIP m\u1ea1nh.<br \/>\n&#8211; Gio\u0103ng\/gasket ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m: EPDM, PTFE, FKM c\u00f3 ch\u1ee9ng nh\u1eadn ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m (EU 1935\/2004, FDA 21 CFR ho\u1eb7c NSF\/ANSI 51). Tr\u00e1nh NBR r\u1ebb ti\u1ec1n cho nhi\u1ec7t\/ho\u00e1 ch\u1ea5t kh\u1eafc nghi\u1ec7t.<\/p>\n<h3>Thi\u1ebft k\u1ebf v\u1ec7 sinh v\u00e0 tho\u00e1t l\u01b0u<\/h3>\n<p>&#8211; H\u1ea1n ch\u1ebf k\u1ebd h\u1edf, h\u1ed1c b\u1ea9n; b\u00e1n k\u00ednh bo g\u00f3c \u2265 3 mm.<br \/>\n&#8211; \u0110\u1ed9 d\u1ed1c tho\u00e1t \u2265 1\u20132% cho \u0111\u01b0\u1eddng \u1ed1ng\/b\u1ec1 m\u1eb7t c\u1ea7n tho\u00e1t h\u1ebft dung d\u1ecbch CIP.<br \/>\n&#8211; T\u1ec9 l\u1ec7 \u201cdead leg\u201d L\/D \u2264 2 (theo th\u00f4ng l\u1ec7 ASME BPE\/EHEDG) \u0111\u1ec3 tr\u00e1nh \u1ee9 \u0111\u1ecdng.<\/p>\n<h3>M\u1ed1i h\u00e0n v\u1ec7 sinh (sanitary welding)<\/h3>\n<p>&#8211; Quy ph\u1ea1m: AWS D18.1 (welding of austenitic stainless tube\/pipe in sanitary service), ASME Section IX (ch\u1ee9ng ch\u1ec9 th\u1ee3 h\u00e0n).<br \/>\n&#8211; Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt:<br \/>\n  &#8211; H\u00e0n GTAW\/Orbital, kh\u00ed b\u1ea3o v\u1ec7 trong\/ngo\u00e0i (purging) \u0111\u1ea1t O2 th\u1ea5p \u0111\u1ec3 tr\u00e1nh x\u1ec9\/nhi\u1ec5m m\u00e0u.<br \/>\n  &#8211; H\u1ea1t h\u00e0n ph\u1eb3ng, kh\u00f4ng b\u1eadc, kh\u00f4ng undercut; kh\u00f4ng r\u1ed7\/ n\u1ee9t; l\u00e0m s\u1ea1ch nhi\u1ec7t m\u00e0u (heat tint).<br \/>\n  &#8211; Th\u00e0nh ph\u1ea7n ferit delta trong kim lo\u1ea1i h\u00e0n: kho\u1ea3ng 3\u201310 FN \u0111\u1ec3 gi\u1ea3m n\u1ee9t n\u00f3ng m\u00e0 v\u1eabn ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t.<br \/>\n&#8211; L\u00e0m s\u1ea1ch &#038; th\u1ee5 \u0111\u1ed9ng ho\u00e1 sau h\u00e0n: theo ASTM A380 (l\u00e0m s\u1ea1ch, t\u1ea9y g\u1ec9) v\u00e0 ASTM A967 (th\u1ee5 \u0111\u1ed9ng ho\u00e1 b\u1eb1ng nitric\/citric). Ki\u1ec3m tra s\u1eaft t\u1ef1 do (v\u00ed d\u1ee5 test \u0111\u1ed3ng sunfat) khi c\u1ea7n.<\/p>\n<h3>Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 nh\u00e1m (Ra)<\/h3>\n<p>&#8211; M\u1ed1c tham chi\u1ebfu cho th\u1ef1c ph\u1ea9m:<br \/>\n  &#8211; Ra ID\/OD \u2264 0.8 \u00b5m: chu\u1ea9n cho \u0111a s\u1ed1 \u1ee9ng d\u1ee5ng CIP.<br \/>\n  &#8211; Ra \u2264 0.4 \u00b5m v\u00e0\/ho\u1eb7c \u0111i\u1ec7n ho\u00e1 b\u00f3ng (electropolish): cho si\u00eau s\u1ea1ch, \u0111\u1ed3 u\u1ed1ng v\u00f4 tr\u00f9ng, b\u01a1 s\u1eefa ti\u1ec7t tr\u00f9ng.<br \/>\n&#8211; M\u00e3 ho\u00e0n thi\u1ec7n tham kh\u1ea3o (ASME BPE): SF1 (~0.51 \u00b5m), SF4 (~0.38 \u00b5m).<br \/>\n&#8211; Tr\u00e1nh b\u1ec1 m\u1eb7t c\u00e1n n\u00f3ng th\u00f4 (1D\/HR) \u1edf v\u00f9ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp th\u1ef1c ph\u1ea9m.<\/p>\n<h2 id=\"toc-2-tuan-thu-phap-ly-va-chung-nhan-lien-quan\">Tu\u00e2n th\u1ee7 ph\u00e1p l\u00fd v\u00e0 ch\u1ee9ng nh\u1eadn li\u00ean quan<\/h2>\n<p>&#8211; Li\u00ean minh Ch\u00e2u \u00c2u:<br \/>\n  &#8211; EU Regulation 1935\/2004 (v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m) v\u00e0 2023\/2006 (GMP).<br \/>\n  &#8211; T\u00e0i li\u1ec7u \u201cDeclaration of Compliance\u201d n\u00ean \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p ph\u00e1t h\u00e0nh cho \u1ed1ng\/ph\u1ee5 ki\u1ec7n v\u1ec7 sinh.<br \/>\n&#8211; Hoa K\u1ef3:<br \/>\n  &#8211; NSF\/ANSI 51 (Materials for Food Equipment).<br \/>\n  &#8211; 3-A Sanitary Standards (dairy v\u00e0 \u1ee9ng d\u1ee5ng v\u1ec7 sinh), h\u01b0\u1edbng d\u1eabn thi\u1ebft k\u1ebf v\u1ec7 sinh v\u00e0 b\u1ec1 m\u1eb7t.<br \/>\n&#8211; Vi\u1ec7t Nam: Doanh nghi\u1ec7p th\u1ef1c ph\u1ea9m th\u01b0\u1eddng \u00e1p d\u1ee5ng EN\/ASTM\/3-A\/EHEDG cho thi\u1ebft b\u1ecb nh\u1eadp kh\u1ea9u v\u00e0 n\u1ed9i \u0111\u1ecba ho\u00e1 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u kh\u00e1ch h\u00e0ng xu\u1ea5t kh\u1ea9u.<\/p>\n<h2 id=\"toc-3-cac-chi-tieu-kiem-soat-chat-luong-bat-buoc\">C\u00e1c ch\u1ec9 ti\u00eau ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng b\u1eaft bu\u1ed9c<\/h2>\n<p>&#8211; Truy xu\u1ea5t v\u00e0 ch\u1ee9ng t\u1eeb:<br \/>\n  &#8211; MTC\/MTR theo EN 10204 3.1 (ho\u1eb7c 3.2 khi y\u00eau c\u1ea7u) cho t\u1eebng heat\/lot; th\u1ec3 hi\u1ec7n th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh, tr\u1ea1ng th\u00e1i x\u1eed l\u00fd nhi\u1ec7t.<br \/>\n  &#8211; S\u1ed1 heat\/lot \u0111\u01b0\u1ee3c d\u1eadp\/kh\u1eafc laser tr\u00ean t\u1ea5m\/\u1ed1ng\/ph\u1ee5 ki\u1ec7n n\u01a1i c\u00f3 th\u1ec3.<br \/>\n&#8211; Nh\u1eadn d\u1ea1ng v\u1eadt li\u1ec7u:<br \/>\n  &#8211; PMI (Positive Material Identification) b\u1eb1ng XRF \u0111\u1ec3 x\u00e1c nh\u1eadn 304 vs 316L (Mo).<br \/>\n&#8211; B\u1ec1 m\u1eb7t:<br \/>\n  &#8211; \u0110o Ra b\u1eb1ng m\u00e1y \u0111o \u0111\u1ed9 nh\u00e1m (theo ISO 4287\/ASME B46.1); ghi nh\u1eadn tr\u01b0\u1edbc v\u00e0 sau \u0111\u00e1nh b\u00f3ng\/\u0111i\u1ec7n ho\u00e1 b\u00f3ng.<br \/>\n  &#8211; N\u1ed9i soi (borescope) ki\u1ec3m tra m\u1ed1i h\u00e0n ID.<br \/>\n&#8211; M\u1ed1i h\u00e0n:<br \/>\n  &#8211; H\u1ed3 s\u01a1 WPS\/PQR, ch\u1ee9ng ch\u1ec9 th\u1ee3 h\u00e0n (ASME IX).<br \/>\n  &#8211; Ki\u1ec3m tra discoloration, r\u1ed7 h\u00e0n, cap chi\u1ec1u cao; th\u1eed k\u00edn n\u1ebfu y\u00eau c\u1ea7u (helium leak \u1edf khu v\u1ef1c ti\u1ec7t tr\u00f9ng).<br \/>\n&#8211; Th\u1ee5 \u0111\u1ed9ng ho\u00e1:<br \/>\n  &#8211; Quy tr\u00ecnh ho\u00e1 ch\u1ea5t, th\u1eddi gian, nhi\u1ec7t \u0111\u1ed9 theo ASTM A967; bi\u00ean b\u1ea3n x\u00e1c nh\u1eadn r\u1eeda tr\u00f4i ho\u00e1 ch\u1ea5t sau x\u1eed l\u00fd.<\/p>\n<h2 id=\"toc-4-lua-chon-theo-moi-truong-san-pham-va-hoa-chat-ve-s\">L\u1ef1a ch\u1ecdn theo m\u00f4i tr\u01b0\u1eddng s\u1ea3n ph\u1ea9m v\u00e0 ho\u00e1 ch\u1ea5t v\u1ec7 sinh<\/h2>\n<p>&#8211; S\u1ea3n ph\u1ea9m \u00edt m\u1eb7n\/\u00edt axit (s\u1eefa, n\u01b0\u1edbc u\u1ed1ng, bia): 304L\/316L \u0111\u1ec1u ph\u00f9 h\u1ee3p; 304L ti\u1ebft ki\u1ec7m chi ph\u00ed, nh\u01b0ng 316L b\u1ec1n h\u01a1n v\u1edbi CIP kh\u1eafc nghi\u1ec7t.<br \/>\n&#8211; S\u1ea3n ph\u1ea9m m\u1eb7n\/axit (n\u01b0\u1edbc m\u1eafm, \u0111\u1ed3 mu\u1ed1i, n\u01b0\u1edbc ch\u1ea5m, c\u00e0 chua): \u01b0u ti\u00ean 316L cho to\u00e0n b\u1ed9 ph\u1ea7n \u01b0\u1edbt; \u0111\u1eb7c bi\u1ec7t c\u00e1c m\u1ed1i h\u00e0n, v\u00f9ng phun CIP.<br \/>\n&#8211; H\u00f3a ch\u1ea5t CIP:<br \/>\n  &#8211; NaOH (ki\u1ec1m), HNO3 ho\u1eb7c axit peracetic: an to\u00e0n cho 304\/316L \u1edf n\u1ed3ng \u0111\u1ed9\/ nhi\u1ec7t \u0111\u1ed9 khuy\u1ebfn ngh\u1ecb c\u1ee7a nh\u00e0 ho\u00e1 ch\u1ea5t.<br \/>\n  &#8211; Tr\u00e1nh ho\u1eb7c ki\u1ec3m so\u00e1t ch\u1eb7t chlorine\/hypochlorite (NaClO), HCl: d\u1ec5 g\u00e2y r\u1ed7\/ n\u1ee9t \u1ee9ng su\u1ea5t do Cl-, nh\u1ea5t l\u00e0 tr\u00ean 304 v\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<br \/>\n&#8211; M\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n\/\u1ea9m m\u1eb7n: \u01b0u ti\u00ean 316L cho k\u1ebft c\u1ea5u b\u00ean ngo\u00e0i \u0111\u1ec3 h\u1ea1n ch\u1ebf b\u00e1m mu\u1ed1i v\u00e0 r\u1ed7 ngo\u1ea1i th\u1ea5t.<\/p>\n<h2 id=\"toc-5-checklist-ky-thuat-khi-dat-hang-inox-cho-day-chuye\">Checklist k\u1ef9 thu\u1eadt khi \u0111\u1eb7t h\u00e0ng inox cho d\u00e2y chuy\u1ec1n th\u1ef1c ph\u1ea9m<\/h2>\n<p>&#8211; M\u00e1c v\u00e0 ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; 304L ho\u1eb7c 316L theo EN 10088\/ASTM A240 (t\u1ea5m), ASTM A270 S2 ho\u1eb7c EN 10357\/ISO 2037 (\u1ed1ng v\u1ec7 sinh).<br \/>\n&#8211; B\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 nh\u00e1m:<br \/>\n  &#8211; Sheet: 2B\/BA; \u1ed1ng v\u1ec7 sinh: ID Ra \u2264 0.8 \u00b5m (ho\u1eb7c \u2264 0.4 \u00b5m n\u1ebfu y\u00eau c\u1ea7u).<br \/>\n  &#8211; Y\u00eau c\u1ea7u electropolish n\u1ebfu c\u1ea7n v\u1ec7 sinh cao.<br \/>\n&#8211; \u1ed0ng v\u00e0 ph\u1ee5 ki\u1ec7n:<br \/>\n  &#8211; H\u1ec7 clamp ISO 2852\/DIN 11864\/SMS t\u01b0\u01a1ng th\u00edch; gio\u0103ng EPDM\/PTFE c\u00f3 ch\u1ee9ng nh\u1eadn EU 1935\/2004 ho\u1eb7c NSF\/ANSI 51.<br \/>\n&#8211; H\u00e0n v\u00e0 x\u1eed l\u00fd sau h\u00e0n:<br \/>\n  &#8211; H\u00e0n orbital GTAW, purging; l\u00e0m s\u1ea1ch, t\u1ea9y g\u1ec9 v\u00e0 th\u1ee5 \u0111\u1ed9ng ho\u00e1 theo ASTM A380\/A967.<br \/>\n&#8211; Ch\u1ee9ng t\u1eeb:<br \/>\n  &#8211; MTC EN 10204 3.1; PMI; ch\u1ee9ng ch\u1ec9 b\u1ec1 m\u1eb7t (Ra report) cho \u1ed1ng v\u1ec7 sinh; Declaration of Compliance cho v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m.<\/p>\n<h2 id=\"toc-6-loi-pho-bien-va-cach-tranh\">L\u1ed7i ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch tr\u00e1nh<\/h2>\n<p>&#8211; D\u00f9ng 304 \u1edf khu v\u1ef1c c\u00f3 Cl- cao ho\u1eb7c d\u00f9ng NaClO n\u00f3ng trong CIP: chuy\u1ec3n sang 316L ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh ho\u00e1 ch\u1ea5t\/\u0111i\u1ec1u ki\u1ec7n CIP.<br \/>\n&#8211; Kh\u00f4ng lo\u1ea1i b\u1ecf nhi\u1ec7t m\u00e0u sau h\u00e0n: th\u1ef1c hi\u1ec7n t\u1ea9y g\u1ec9\/th\u1ee5 \u0111\u1ed9ng ho\u00e1 \u0111\u1ea7y \u0111\u1ee7, ki\u1ec3m tra l\u1ea1i.<br \/>\n&#8211; D\u00f9ng b\u00e0n ch\u1ea3i th\u00e9p carbon tr\u00ean inox: ch\u1ec9 d\u00f9ng d\u1ee5ng c\u1ee5 d\u00e0nh ri\u00eang cho inox \u0111\u1ec3 tr\u00e1nh \u201cnhi\u1ec5m s\u1eaft t\u1ef1 do\u201d.<br \/>\n&#8211; M\u1ed1i h\u00e0n l\u1ed3i, k\u1ebd h\u1edf trong \u1ed1ng: y\u00eau c\u1ea7u h\u00e0n v\u1ec7 sinh, m\u00e0i ph\u1eb3ng, n\u1ed9i soi.<br \/>\n&#8211; B\u1ec1 m\u1eb7t qu\u00e1 th\u00f4 (Ra > 0.8 \u00b5m) \u1edf v\u00f9ng ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m: \u0111\u00e1nh b\u00f3ng\/\u0111i\u1ec7n ho\u00e1 b\u00f3ng \u0111\u1ec3 gi\u1ea3m b\u00e1m b\u1ea9n v\u00e0 th\u1eddi gian CIP.<\/p>\n<h2 id=\"toc-7-vi-du-nhanh-theo-ung-dung\">V\u00ed d\u1ee5 nhanh theo \u1ee9ng d\u1ee5ng<\/h2>\n<p>&#8211; D\u00e2y chuy\u1ec1n s\u1eefa thanh tr\u00f9ng: \u1ed0ng ASTM A270 S2, ID Ra \u2264 0.8 \u00b5m; v\u1eadt li\u1ec7u 304L \u0111\u1ee7 d\u00f9ng, 316L cho khu v\u1ef1c CIP\/\u0111un n\u00f3ng; clamp ISO 2852, gio\u0103ng EPDM \u0111\u1ea1t EU 1935\/2004.<br \/>\n&#8211; D\u00e2y chuy\u1ec1n n\u01b0\u1edbc m\u1eafm\/n\u01b0\u1edbc ch\u1ea5m m\u1eb7n: \u01afu ti\u00ean 316L cho to\u00e0n b\u1ed9 b\u1ed3n, \u1ed1ng, ph\u1ee5 ki\u1ec7n; h\u00e0n v\u1ec7 sinh + th\u1ee5 \u0111\u1ed9ng ho\u00e1; tr\u00e1nh NaClO, d\u00f9ng peracetic\/axit nitric \u1edf \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m so\u00e1t; c\u00e2n nh\u1eafc electropolish \u1edf b\u1ec1 m\u1eb7t kh\u00f3 v\u1ec7 sinh.<br \/>\n&#8211; \u0110\u1ed3 u\u1ed1ng v\u00f4 tr\u00f9ng\/UHT: 316L; \u1ed1ng v\u00e0 b\u1ed3n Ra \u2264 0.4\u20130.6 \u00b5m, nhi\u1ec1u v\u1ecb tr\u00ed y\u00eau c\u1ea7u electropolish; ki\u1ec3m leak nghi\u00eam ng\u1eb7t v\u00e0 dead-leg L\/D \u2264 2.<\/p>\n<h2 id=\"toc-8-bao-tri-ve-sinh-de-giu-thu-dong-ben\">B\u1ea3o tr\u00ec, v\u1ec7 sinh \u0111\u1ec3 gi\u1eef th\u1ee5 \u0111\u1ed9ng b\u1ec1n<\/h2>\n<p>&#8211; R\u1eeda n\u01b0\u1edbc s\u1ea1ch sau m\u1ed7i chu tr\u00ecnh CIP, \u0111\u1eb7c bi\u1ec7t khi c\u00f3 halogen.<br \/>\n&#8211; Duy tr\u00ec pH v\u00e0 nhi\u1ec7t \u0111\u1ed9 dung d\u1ecbch CIP theo khuy\u1ebfn c\u00e1o; tr\u00e1nh \u0111\u1ec3 kh\u00f4 mu\u1ed1i tr\u00ean b\u1ec1 m\u1eb7t.<br \/>\n&#8211; \u0110\u1ecbnh k\u1ef3 th\u1ee5 \u0111\u1ed9ng ho\u00e1 l\u1ea1i khi c\u00f3 d\u1ea5u hi\u1ec7u x\u1ec9n m\u00e0u\/r\u1ed7 nh\u1eb9; ghi ch\u00e9p v\u1eadt t\u01b0 v\u00e0 \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh \u0111\u1ec3 truy xu\u1ea5t.<\/p>\n<h2 id=\"toc-9-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n<p>&#8211; EN 10088-2: Stainless steels \u2013 Technical delivery conditions \u2013 Sheets\/plates\/strips.<br \/>\n&#8211; ASTM A240\/A240M: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip.<br \/>\n&#8211; ASTM A269, ASTM A270: Seamless and Welded Austenitic Stainless Steel Tubing for General\/Sanitary Service.<br \/>\n&#8211; EN 10357, ISO 2037: Stainless steel tubes for the foodstuffs and chemical industry.<br \/>\n&#8211; ISO 2852: Stainless steel clamp pipe couplings for the food industry.<br \/>\n&#8211; AWS D18.1: Specification for Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary Applications.<br \/>\n&#8211; ASTM A380, ASTM A967: Cleaning, Descaling, and Passivation of Stainless Steel.<br \/>\n&#8211; ASME BPE: Bioprocessing Equipment \u2013 Surface finish and hygienic design benchmarks.<br \/>\n&#8211; 3-A Sanitary Standards; EHEDG Guidelines (hygienic design, drainability).<br \/>\n&#8211; EU Regulation No 1935\/2004 and 2023\/2006 (EUR-Lex).<\/p>\n<h2 id=\"toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Inox 304L ph\u00f9 h\u1ee3p \u0111a s\u1ed1 \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m s\u1ea1ch, chi ph\u00ed h\u1ee3p l\u00fd; 316L c\u1ea7n thi\u1ebft khi c\u00f3 mu\u1ed1i\/Cl-, axit v\u00e0 CIP kh\u1eafc nghi\u1ec7t.<br \/>\n&#8211; H\u00e3y ch\u1ec9 \u0111\u1ecbnh \u0111\u00fang ti\u00eau chu\u1ea9n: t\u1ea5m theo ASTM A240\/EN 10088; \u1ed1ng v\u1ec7 sinh theo ASTM A270 S2 ho\u1eb7c EN 10357\/ISO 2037; ph\u1ee5 ki\u1ec7n theo ISO 2852\/DIN\/SMS; h\u00e0n theo AWS D18.1; th\u1ee5 \u0111\u1ed9ng ho\u00e1 theo ASTM A967.<br \/>\n&#8211; B\u1ec1 m\u1eb7t v\u00e0 m\u1ed1i h\u00e0n quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng v\u1ec7 sinh: m\u1ee5c ti\u00eau Ra \u2264 0.8 \u00b5m (ho\u1eb7c \u2264 0.4 \u00b5m), h\u00e0n v\u1ec7 sinh, kh\u00f4ng k\u1ebd h\u1edf, th\u1ee5 \u0111\u1ed9ng ho\u00e1 \u0111\u1ea7y \u0111\u1ee7.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng b\u1eb1ng MTC 3.1, PMI, \u0111o Ra, n\u1ed9i soi, v\u00e0 Declaration of Compliance gi\u00fap d\u00e2y chuy\u1ec1n \u0111\u00e1p \u1ee9ng chu\u1ea9n qu\u1ed1c t\u1ebf v\u00e0 gi\u1ea3m r\u1ee7i ro an to\u00e0n th\u1ef1c ph\u1ea9m.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ec9 \u0111\u1ecbnh ti\u00eau chu\u1ea9n cho d\u1ef1 \u00e1n c\u1ee5 th\u1ec3 ho\u1eb7c b\u00e1o gi\u00e1 nhanh v\u1eadt t\u01b0 304\/316L \u0111\u1ea1t chu\u1ea9n v\u1ec7 sinh? Li\u00ean h\u1ec7 Inox Cuong Thinh \u2013 Hotline: 0343.417.281 \u2013 Email: inoxcongnghiep.cuongthinh@gmail.com \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 gi\u00e1 t\u1ed1t nh\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 ti\u00eau chu\u1ea9n inox 304\/316L cho th\u1ef1c ph\u1ea9m: ASTM\/EN, \u1ed1ng A270\/EN 10357, b\u1ec1 m\u1eb7t Ra, h\u00e0n v\u1ec7 sinh, th\u1ee5 \u0111\u1ed9ng ho\u00e1, v\u00e0 checklist mua h\u00e0ng.<\/p>\n","protected":false},"author":7,"featured_media":1040,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1794","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\/1794","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=1794"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1794\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1040"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}