{"id":2212,"date":"2026-07-02T12:33:58","date_gmt":"2026-07-02T05:33:58","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-cho-hoa-chat-nang-luong-dong-tau-lua-chon-va-tieu-chuan\/"},"modified":"2026-07-03T00:35:45","modified_gmt":"2026-07-02T17:35:45","slug":"inox-cho-hoa-chat-nang-luong-dong-tau-lua-chon-va-tieu-chuan","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-cho-hoa-chat-nang-luong-dong-tau-lua-chon-va-tieu-chuan\/","title":{"rendered":"Inox cho h\u00f3a ch\u1ea5t, n\u0103ng l\u01b0\u1ee3ng, \u0111\u00f3ng t\u00e0u: l\u1ef1a ch\u1ecdn v\u00e0 ti\u00eau chu\u1ea9n"},"content":{"rendered":"<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/thiet-ke-bon-hoa-chat-nen-chon-inox-316l-hay-904l-toi-uu\/\" target=\"_blank\" rel=\"noopener noreferrer\">Thi\u1ebft k\u1ebf b\u1ed3n h\u00f3a ch\u1ea5t: n\u00ean ch\u1ecdn Inox 316L hay 904L t\u1ed1i \u01b0u?<\/a><\/p>\n<\/p><\/div>\n<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-inox-nen-tang-vat-lieu-ben-vung-cho-hoa-chat-nang-\">Inox \u2013 n\u1ec1n t\u1ea3ng v\u1eadt li\u1ec7u b\u1ec1n v\u1eefng cho h\u00f3a ch\u1ea5t, n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u00e0u bi\u1ec3n<\/a><\/li>\n<li><a href=\"#toc-1-inox-trong-cong-nghiep-nang-la-gi-va-vi-sao-bat-bu\">Inox trong c\u00f4ng nghi\u1ec7p n\u1eb7ng: l\u00e0 g\u00ec v\u00e0 v\u00ec sao b\u1eaft bu\u1ed9c ph\u1ea3i d\u00f9ng \u0111\u00fang?<\/a><\/li>\n<li><a href=\"#toc-2-nhung-khia-canh-cot-loi-khi-chon-va-trien-khai-ino\">Nh\u1eefng kh\u00eda c\u1ea1nh c\u1ed1t l\u00f5i khi ch\u1ecdn v\u00e0 tri\u1ec3n khai Inox<\/a><\/li>\n<li><a href=\"#toc-3-chuyen-sau-theo-chu-de-lien-quan\">Chuy\u00ean s\u00e2u theo ch\u1ee7 \u0111\u1ec1 li\u00ean quan<\/a><\/li>\n<li><a href=\"#toc-4-ung-dung-thuc-tien-va-khuyen-nghi-chuyen-gia\">\u1ee8ng d\u1ee5ng th\u1ef1c ti\u1ec5n v\u00e0 khuy\u1ebfn ngh\u1ecb chuy\u00ean gia<\/a><\/li>\n<li><a href=\"#toc-5-ket-luan-va-buoc-tiep-theo\">K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"toc-0-inox-nen-tang-vat-lieu-ben-vung-cho-hoa-chat-nang-\">Inox \u2013 n\u1ec1n t\u1ea3ng v\u1eadt li\u1ec7u b\u1ec1n v\u1eefng cho h\u00f3a ch\u1ea5t, n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u00e0u bi\u1ec3n<\/h2>\n<p>\u1ede c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t nh\u01b0 b\u1ed3n ch\u1ee9a acid, \u0111\u01b0\u1eddng \u1ed1ng \u00e1p l\u1ef1c cao, h\u1ec7 th\u1ed1ng n\u01b0\u1edbc bi\u1ec3n v\u00e0 boong t\u00e0u, m\u1ed9t sai l\u1ea7m nh\u1ecf v\u1ec1 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 tr\u1ea3 gi\u00e1 b\u1eb1ng d\u1eebng m\u00e1y, r\u00f2 r\u1ec9, ho\u1eb7c h\u1ecfng thi\u1ebft b\u1ecb \u0111\u1eaft \u0111\u1ecf. K\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u v\u00e0 ch\u1ee7 x\u01b0\u1edfng c\u1ea7n v\u1eeba t\u1ed1i \u01b0u chi ph\u00ed \u0111\u1ea7u t\u01b0, v\u1eeba \u0111\u1ea3m b\u1ea3o v\u00f2ng \u0111\u1eddi v\u1eadn h\u00e0nh d\u00e0i trong \u0111i\u1ec1u ki\u1ec7n \u0103n m\u00f2n clorua, nhi\u1ec7t \u0111\u1ed9 cao, v\u00e0 y\u00eau c\u1ea7u ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p khung t\u01b0 duy v\u00e0 b\u1ed9 c\u00f4ng c\u1ee5 th\u1ef1c ti\u1ec5n \u0111\u1ec3 b\u1ea1n l\u1ef1a ch\u1ecdn, thi\u1ebft k\u1ebf v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng Inox cho c\u00f4ng nghi\u1ec7p n\u1eb7ng: t\u1eeb m\u00e1c th\u00e9p (316L, 904L, Duplex\/Super Duplex) \u0111\u1ebfn ti\u00eau chu\u1ea9n ASME, t\u1eeb trao \u0111\u1ed5i nhi\u1ec7t \u0111\u1ebfn k\u1ebft c\u1ea5u ngo\u00e0i kh\u01a1i. B\u1ea1n s\u1ebd n\u1eafm c\u00e1c c\u01a1 ch\u1ebf \u0103n m\u00f2n quan tr\u1ecdng, c\u00e1ch kh\u1edbp \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c v\u1edbi v\u1eadt li\u1ec7u, v\u00e0 nh\u1eefng l\u01b0u \u00fd ch\u1ebf t\u1ea1o\/ki\u1ec3m \u0111\u1ecbnh gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb, gi\u1ea3m t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (TCO), \u0111\u1ed3ng th\u1eddi \u0111\u00e1p \u1ee9ng quy chu\u1ea9n an to\u00e0n v\u00e0 m\u00f4i tr\u01b0\u1eddng. <\/p>\n<h2 id=\"toc-1-inox-trong-cong-nghiep-nang-la-gi-va-vi-sao-bat-bu\">Inox trong c\u00f4ng nghi\u1ec7p n\u1eb7ng: l\u00e0 g\u00ec v\u00e0 v\u00ec sao b\u1eaft bu\u1ed9c ph\u1ea3i d\u00f9ng \u0111\u00fang?<\/h2>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) l\u00e0 h\u1ee3p kim Fe\u2013Cr\u2013Ni (v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c) c\u00f3 l\u1edbp th\u1ee5 \u0111\u1ed9ng Cr2O3 ch\u1ed1ng \u0103n m\u00f2n. Trong c\u00f4ng nghi\u1ec7p n\u1eb7ng, Inox kh\u00f4ng ch\u1ec9 \u201cch\u1ed1ng g\u1ec9\u201d m\u00e0 c\u00f2n ph\u1ea3i ch\u1ecbu \u00e1p, ch\u1ecbu nhi\u1ec7t, ch\u1ecbu m\u1ecfi v\u00e0 ch\u1ed1ng n\u1ee9t \u1ee9ng su\u1ea5t do clorua (SCC). Nh\u1eefng m\u00e1c th\u01b0\u1eddng g\u1eb7p:<br \/>\n&#8211; Austenitic: 304\/304L, 316\/316L, 904L \u2013 d\u1ec5 gia c\u00f4ng, ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t; 316L\/904L \u01b0u th\u1ebf trong m\u00f4i tr\u01b0\u1eddng clorua\/acid.<br \/>\n&#8211; Duplex\/Super Duplex (2205, 2507\/S32750) \u2013 c\u00e2n b\u1eb1ng \u0111\u1ed9 b\u1ec1n cao v\u00e0 ch\u1ed1ng r\u1ed7, k\u1ebd; ph\u00f9 h\u1ee3p n\u01b0\u1edbc bi\u1ec3n, d\u1ea7u kh\u00ed.<br \/>\n&#8211; Ch\u1ecbu nhi\u1ec7t: 310S, 253MA \u2013 \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao cho l\u00f2 h\u01a1i\/l\u00f2 nung.<br \/>\nT\u1ea7m quan tr\u1ecdng th\u1ef1c ti\u1ec5n:<br \/>\n&#8211; An to\u00e0n quy tr\u00ecnh: h\u1ea1n ch\u1ebf r\u00f2 r\u1ec9 h\u00f3a ch\u1ea5t\/kh\u00ed \u0111\u1ed9c, \u0111\u00e1p \u1ee9ng ASME, API, TEMA, DNV.<br \/>\n&#8211; \u0110\u1ed9 tin c\u1eady: gi\u1ea3m h\u1ecfng h\u00f3c do r\u1ed7\/k\u1ebd\/SCC, t\u0103ng th\u1eddi gian ch\u1ea1y m\u00e1y.<br \/>\n&#8211; Kinh t\u1ebf v\u00f2ng \u0111\u1eddi: chi ph\u00ed \u0111\u1ea7u t\u01b0 c\u00f3 th\u1ec3 cao h\u01a1n th\u00e9p carbon nh\u01b0ng t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu th\u1ea5p h\u01a1n nh\u1edd \u00edt b\u1ea3o tr\u00ec v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i.<br \/>\n&#8211; B\u1ec1n m\u00f4i tr\u01b0\u1eddng: ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng bi\u1ec3n mi\u1ec1n B\u1eafc\/mi\u1ec1n Trung Vi\u1ec7t Nam v\u1edbi h\u00e0m l\u01b0\u1ee3ng clorua cao.<\/p>\n<h2 id=\"toc-2-nhung-khia-canh-cot-loi-khi-chon-va-trien-khai-ino\">Nh\u1eefng kh\u00eda c\u1ea1nh c\u1ed1t l\u00f5i khi ch\u1ecdn v\u00e0 tri\u1ec3n khai Inox<\/h2>\n<h3>1) M\u00e1c th\u00e9p v\u00e0 vi c\u1ea5u tr\u00fac<\/h3>\n<p>Austenitic (316L, 904L) cho kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed5ng qu\u00e1t t\u1ed1t, h\u00e0n d\u1ec5; Duplex\/Super Duplex (2205\/2507) c\u00f3 \u0111\u1ed9 b\u1ec1n cao, PREN l\u1edbn, \u01b0u vi\u1ec7t trong n\u01b0\u1edbc bi\u1ec3n, h\u1ec7 n\u01b0\u1edbc l\u00e0m m\u00e1t; m\u00e1c ch\u1ecbu nhi\u1ec7t (310S, 253MA) d\u00f9ng cho l\u00f2\/\u1ed1ng kh\u00f3i. V\u00ed d\u1ee5: \u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc bi\u1ec3n \u01b0u ti\u00ean 2205; b\u1ed3n H2SO4 lo\u00e3ng xem x\u00e9t 904L.<\/p>\n<h3>2) C\u01a1 ch\u1ebf \u0103n m\u00f2n v\u00e0 ch\u1ec9 s\u1ed1 \u0111\u00e1nh gi\u00e1<\/h3>\n<p>&#8211; R\u1ed7\/k\u1ebd do clorua: xem PREN (Cr+3.3Mo+16N) v\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t \u0111i\u1ec3m t\u1edbi h\u1ea1n CPT\/CCT.<br \/>\n&#8211; N\u1ee9t \u0103n m\u00f2n \u1ee9ng su\u1ea5t (SCC): austenitic d\u1ec5 nh\u1ea1y \u1edf nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh; Duplex kh\u00e1ng SCC t\u1ed1t h\u01a1n.<br \/>\n&#8211; \u0102n m\u00f2n k\u1ebd h\u1edf\/galvanic: thi\u1ebft k\u1ebf lo\u1ea1i b\u1ecf khe h\u1edf, ki\u1ec3m so\u00e1t ti\u1ebfp x\u00fac d\u1ecb kim.<br \/>\nV\u00ed d\u1ee5: 316L c\u00f3 th\u1ec3 r\u1ed7 \u1edf n\u01b0\u1edbc bi\u1ec3n n\u00f3ng; 2507 \u1ed5n h\u01a1n nh\u1edd PREN cao.<\/p>\n<h3>3) Thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o<\/h3>\n<p>T\u00ednh b\u1ec1n theo ASME B31.3 (\u0111\u01b0\u1eddng \u1ed1ng) v\u00e0 Section VIII Div.1 (b\u00ecnh \u00e1p l\u1ef1c), ch\u1ecdn b\u1ec1 d\u00e0y, m\u1eb7t b\u00edch, gio\u0103ng ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u00e1nh k\u1ebd h\u1edf. H\u00e0n theo ASME IX, ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0o, ch\u1ecdn v\u1eadt li\u1ec7u h\u00e0n \u0111\u1ed3ng b\u1ed9, t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng sau gia c\u00f4ng \u0111\u1ec3 ph\u1ee5c h\u1ed3i l\u1edbp th\u1ee5 \u0111\u1ed9ng. NDT (PT, RT), th\u1eed \u00e1p, PMI \u0111\u1ea3m b\u1ea3o \u0111\u1ed3ng nh\u1ea5t m\u00e1c.<\/p>\n<h3>4) Ti\u00eau chu\u1ea9n v\u00e0 truy xu\u1ea5t<\/h3>\n<p>V\u1eadt li\u1ec7u theo ASTM (A240 t\u1ea5m, A312 \u1ed1ng austenitic, A790 \u1ed1ng duplex), ch\u1ee9ng ch\u1ec9 MTC 3.1\/3.2, NACE MR0175\/ISO 15156 cho m\u00f4i tr\u01b0\u1eddng H2S, TEMA cho trao \u0111\u1ed5i nhi\u1ec7t, DNV\/ABS cho h\u00e0ng h\u1ea3i. Truy xu\u1ea5t nhi\u1ec7t luy\u1ec7n, ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n v\u00e0 Ferrite number gi\u00fap ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<h3>5) V\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec<\/h3>\n<p>L\u1eadp k\u1ebf ho\u1ea1ch v\u1ec7 sinh, ki\u1ec3m so\u00e1t l\u1eafng c\u1eb7n v\u00e0 k\u1ebd h\u1edf, tr\u00e1nh nhi\u1ec5m b\u1ea9n s\u1eaft t\u1ef1 do t\u1eeb d\u1ee5ng c\u1ee5 carbon steel, gi\u00e1m s\u00e1t clorua v\u00e0 nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t, \u00e1p d\u1ee5ng b\u1ea3o v\u1ec7 catot\/coat ph\u00f9 h\u1ee3p ngo\u00e0i kh\u01a1i.<\/p>\n<h2 id=\"toc-3-chuyen-sau-theo-chu-de-lien-quan\">Chuy\u00ean s\u00e2u theo ch\u1ee7 \u0111\u1ec1 li\u00ean quan<\/h2>\n<p>Thi\u1ebft k\u1ebf b\u1ed3n ch\u1ee9a h\u00f3a ch\u1ea5t \u0111\u00f2i h\u1ecfi c\u00e2n b\u1eb1ng gi\u1eefa kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7\/k\u1ebd v\u00e0 t\u00ednh h\u00e0n; so s\u00e1nh 316L v\u1edbi 904L theo PREN, kh\u1ea3 n\u0103ng ch\u1ecbu H2SO4\/HCl v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi s\u1ebd gi\u00fap t\u1ed1i \u01b0u ngay t\u1eeb \u0111\u1ea7u thi\u1ebft k\u1ebf.<br \/>\n<!-- CLUSTER_PLACEHOLDER_1 --><\/p>\n<p>\u0110\u01b0\u1eddng \u1ed1ng ch\u1ecbu \u00e1p cao c\u1ea7n t\u00ednh to\u00e1n theo B31.3, ch\u1ecdn l\u1edbp v\u1eadt li\u1ec7u, chi\u1ec1u d\u00e0y \u0103n m\u00f2n, ph\u01b0\u01a1ng ph\u00e1p h\u00e0n v\u00e0 th\u1eed \u00e1p; b\u1ed9 ti\u00eau ch\u00ed n\u00e0y quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 k\u00edn, an to\u00e0n v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec.<br \/>\n<!-- CLUSTER_PLACEHOLDER_2 --><\/p>\n<p>\u1ed0ng Inox trong b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd; l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u1ed1ng\/t\u1ea5m \u1ed1ng, ch\u1ed1ng r\u1ed7 ph\u00eda n\u01b0\u1edbc bi\u1ec3n v\u00e0 ch\u1ed1ng \u0103n m\u00f2n ph\u00eda qu\u00e1 tr\u00ecnh l\u00e0 then ch\u1ed1t.<br \/>\n<!-- CLUSTER_PLACEHOLDER_3 --><\/p>\n<p>Trong d\u1ea7u kh\u00ed, Inox Duplex\/Super Duplex gi\u1ea3i quy\u1ebft \u0111\u1ed3ng th\u1eddi y\u00eau c\u1ea7u b\u1ec1n c\u01a1 h\u1ecdc cao v\u00e0 kh\u00e1ng \u0103n m\u00f2n c\u1ee5c b\u1ed9, \u0111\u1eb7c bi\u1ec7t \u1edf h\u1ec7 n\u01b0\u1edbc bi\u1ec3n, n\u01b0\u1edbc \u00e9p v\u1ec9a v\u00e0 d\u1ecbch sour.<br \/>\n<!-- CLUSTER_PLACEHOLDER_4 --><\/p>\n<p>N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o \u0111\u00f2i h\u1ecfi v\u1eadt li\u1ec7u b\u1ec1n th\u1eddi ti\u1ebft v\u00e0 s\u01b0\u01a1ng mu\u1ed1i; khung pin, bul\u00f4ng, v\u00e0 chi ti\u1ebft ngo\u00e0i tr\u1eddi h\u01b0\u1edfng l\u1ee3i r\u00f5 r\u1ec7t t\u1eeb Inox c\u00f3 kh\u00e1ng clorua cao.<br \/>\n<!-- CLUSTER_PLACEHOLDER_5 --><\/p>\n<p>Ng\u00e0nh \u0111\u00f3ng t\u00e0u ph\u1ee5 thu\u1ed9c 316L cho c\u00e1c h\u1ea1ng m\u1ee5c ti\u1ebfp x\u00fac n\u01b0\u1edbc bi\u1ec3n, h\u1ec7 n\u01b0\u1edbc d\u1eb1n, b\u1ebfp\/t\u00e0u d\u1ecbch v\u1ee5; hi\u1ec3u gi\u1edbi h\u1ea1n c\u1ee7a 316L gi\u00fap tr\u00e1nh s\u1ef1 c\u1ed1 r\u1ed7 t\u1ea1i v\u00f9ng s\u00f3ng b\u1eafn.<br \/>\n<!-- CLUSTER_PLACEHOLDER_6 --><\/p>\n<p>Gi\u00e0n khoan v\u00e0 c\u00f4ng tr\u00ecnh ngo\u00e0i kh\u01a1i y\u00eau c\u1ea7u chi\u1ebfn l\u01b0\u1ee3c ch\u1ed1ng \u0103n m\u00f2n \u0111a l\u1edbp: ch\u1ecdn m\u00e1c Duplex\/Super Duplex, thi\u1ebft k\u1ebf tr\u00e1nh k\u1ebd, b\u1ea3o v\u1ec7 catot v\u00e0 s\u01a1n ph\u1ee7 t\u01b0\u01a1ng th\u00edch.<br \/>\n<!-- CLUSTER_PLACEHOLDER_7 --><\/p>\n<p>Ch\u1ebf t\u1ea1o b\u00ecnh ch\u1ecbu \u00e1p l\u1ef1c Inox ph\u1ea3i tu\u00e2n th\u1ee7 ASME Section VIII t\u1eeb t\u00ednh b\u1ec1n, ki\u1ec3m tra NDT \u0111\u1ebfn th\u1eed k\u00edn; thi\u1ebft l\u1eadp h\u1ed3 s\u01a1 ch\u1ea5t l\u01b0\u1ee3ng chu\u1ea9n ngay t\u1eeb v\u1eadt li\u1ec7u \u0111\u1ea7u v\u00e0o.<br \/>\n<!-- CLUSTER_PLACEHOLDER_8 --><\/p>\n<p>\u1ede nhi\u1ec7t \u0111\u1ed9 cao, c\u00e1c m\u00e1c Inox ch\u1ecbu nhi\u1ec7t chuy\u00ean d\u1ee5ng gi\u00fap ch\u1ed1ng oxy h\u00f3a v\u00e0 ch\u1ea3y r\u00e3o; ch\u1ecdn sai m\u00e1c s\u1ebd g\u00e2y bi\u1ebfn d\u1ea1ng, n\u1ee9t ho\u1eb7c bong tr\u00f3c l\u1edbp oxit.<br \/>\n<!-- CLUSTER_PLACEHOLDER_9 --><\/p>\n<p>H\u1ec7 x\u1eed l\u00fd kh\u00ed\/n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p ch\u1ee9a t\u00e1c nh\u00e2n \u0103n m\u00f2n v\u00e0 clorua; ph\u1ed1i h\u1ee3p \u0111\u00fang v\u1eadt li\u1ec7u, h\u00e0n, v\u00e0 v\u1ec7 sinh gi\u00fap h\u1ec7 v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh, an to\u00e0n m\u00f4i tr\u01b0\u1eddng.<br \/>\n<!-- CLUSTER_PLACEHOLDER_10 --><\/p>\n<h2 id=\"toc-4-ung-dung-thuc-tien-va-khuyen-nghi-chuyen-gia\">\u1ee8ng d\u1ee5ng th\u1ef1c ti\u1ec5n v\u00e0 khuy\u1ebfn ngh\u1ecb chuy\u00ean gia<\/h2>\n<p>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh:<br \/>\n&#8211; Nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t t\u1ea1i Qu\u1ea3ng Ninh thay 304 b\u1eb1ng 316L cho b\u1ed3n ch\u1ee9a NaClO; th\u1eddi gian gi\u1eefa hai l\u1ea7n b\u1ea3o tr\u00ec t\u0103ng g\u1ea5p 3 l\u1ea7n nh\u1edd gi\u1ea3m r\u1ed7\/k\u1ebd.<br \/>\n&#8211; H\u1ec7 n\u01b0\u1edbc bi\u1ec3n l\u00e0m m\u00e1t \u1edf H\u1ea3i Ph\u00f2ng d\u00f9ng \u1ed1ng 2205 thay 316L; gi\u1ea3m s\u1ef1 c\u1ed1 r\u00f2 r\u1ec9 do SCC v\u00e0 t\u0103ng tu\u1ed5i th\u1ecd \u1ed1ng ch\u00f9m trao \u0111\u1ed5i nhi\u1ec7t.<br \/>\n&#8211; C\u1ee5m \u0111\u01b0\u1eddng \u1ed1ng HP steam n\u00e2ng c\u1ea5p m\u0103ng s\u00f4ng v\u00e0 gio\u0103ng theo ASME B31.3; r\u00f2 r\u1ec9 m\u1eb7t b\u00edch \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf sau 2 k\u1ef3 ch\u1ea1y m\u00e1y.<\/p>\n<p>Checklist nhanh khi ch\u1ecdn Inox:<br \/>\n&#8211; M\u00f4i tr\u01b0\u1eddng: Cl\u2013 (ppm), pH, nhi\u1ec7t \u0111\u1ed9 c\u1ef1c \u0111\u1ea1i, t\u1ed1c \u0111\u1ed9 d\u00f2ng, oxy h\u00f2a tan.<br \/>\n&#8211; C\u01a1 h\u1ecdc: \u00e1p su\u1ea5t, chu k\u1ef3 nhi\u1ec7t, rung \u0111\u1ed9ng, m\u1ecfi.<br \/>\n&#8211; Tu\u00e2n th\u1ee7: ASME, NACE, DNV\/ABS, TEMA; MTC 3.1, PMI.<br \/>\n&#8211; Ch\u1ebf t\u1ea1o: quy tr\u00ecnh h\u00e0n (WPS\/PQR), t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng, NDT.<br \/>\n&#8211; B\u1ea3o tr\u00ec: l\u00e0m s\u1ea1ch \u0111\u1ecbnh k\u1ef3, ki\u1ec3m so\u00e1t k\u1ebd h\u1edf, gi\u00e1m s\u00e1t \u0103n m\u00f2n.<\/p>\n<p>Sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh:<br \/>\n&#8211; D\u00f9ng 304\/316L \u1edf v\u00f9ng n\u01b0\u1edbc bi\u1ec3n \u1ea5m c\u00f3 clorua cao m\u00e0 kh\u00f4ng ki\u1ec3m so\u00e1t k\u1ebd h\u1edf ho\u1eb7c v\u1eadn t\u1ed1c d\u00f2ng.<br \/>\n&#8211; B\u1ecf qua t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng sau h\u00e0n, \u0111\u1ec3 l\u1ea1i v\u00f9ng nhi\u1ec5m s\u1eaft t\u1ef1 do g\u00e2y r\u1ed7 s\u1edbm.<br \/>\n&#8211; K\u1ebft h\u1ee3p d\u1ecb kim kh\u00f4ng \u0111\u00e1nh gi\u00e1 \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a; ch\u1ecdn bul\u00f4ng\/gio\u0103ng t\u1ea1o k\u1ebd.<br \/>\n&#8211; Kh\u00f4ng ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0o khi h\u00e0n Duplex, l\u00e0m l\u1ec7ch pha v\u00e0 suy gi\u1ea3m t\u00ednh n\u0103ng.<br \/>\n&#8211; Thi\u1ebfu PMI\/traceability, tr\u1ed9n l\u1eabn m\u00e1c v\u1eadt li\u1ec7u trong s\u1ea3n xu\u1ea5t.<\/p>\n<h2 id=\"toc-5-ket-luan-va-buoc-tiep-theo\">K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/h2>\n<p>Ch\u1ecdn \u0111\u00fang Inox cho c\u00f4ng nghi\u1ec7p n\u1eb7ng l\u00e0 quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt\u2013kinh t\u1ebf then ch\u1ed1t: kh\u1edbp m\u00f4i tr\u01b0\u1eddng v\u1edbi m\u00e1c th\u00e9p, tu\u00e2n th\u1ee7 ASME\/NACE\/TEMA, ki\u1ec3m so\u00e1t ch\u1ebf t\u1ea1o v\u00e0 b\u1ea3o tr\u00ec \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb. H\u00e3y li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 k\u1ef9 s\u01b0 c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u1eadt li\u1ec7u, nh\u1eadn b\u1ea3ng th\u00f4ng s\u1ed1 316L\/904L\/Duplex, b\u00e1o gi\u00e1 t\u1ed3n kho t\u1ea1i H\u00e0 N\u1ed9i, v\u00e0 gi\u1ea3i ph\u00e1p gia c\u00f4ng\u2013ki\u1ec3m \u0111\u1ecbnh tr\u1ecdn g\u00f3i cho d\u1ef1 \u00e1n h\u00f3a ch\u1ea5t, n\u0103ng l\u01b0\u1ee3ng v\u00e0 \u0111\u00f3ng t\u00e0u c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ea9m nang Inox cho c\u00f4ng nghi\u1ec7p n\u1eb7ng: ch\u1ecdn m\u00e1c, thi\u1ebft k\u1ebf b\u1ed3n\/\u1ed1ng \u00e1p l\u1ef1c, trao \u0111\u1ed5i nhi\u1ec7t, Duplex\u2013316L, ti\u00eau chu\u1ea9n ASME v\u00e0 gi\u1ea3i ph\u00e1p ch\u1ed1ng \u0103n m\u00f2n cho h\u00f3a ch\u1ea5t.<\/p>\n","protected":false},"author":7,"featured_media":1070,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2212","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\/2212","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=2212"}],"version-history":[{"count":1,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2212\/revisions"}],"predecessor-version":[{"id":2215,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2212\/revisions\/2215"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1070"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}