{"id":1963,"date":"2026-04-30T00:34:10","date_gmt":"2026-04-29T17:34:10","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/bi-quyet-bao-duong-lan-can-cong-inox-ngoai-troi-ben-10-nam\/"},"modified":"2026-04-30T00:34:10","modified_gmt":"2026-04-29T17:34:10","slug":"bi-quyet-bao-duong-lan-can-cong-inox-ngoai-troi-ben-10-nam","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/bi-quyet-bao-duong-lan-can-cong-inox-ngoai-troi-ben-10-nam\/","title":{"rendered":"B\u00ed quy\u1ebft b\u1ea3o d\u01b0\u1ee1ng lan can, c\u1ed5ng Inox ngo\u00e0i tr\u1eddi b\u1ec1n 10+ n\u0103m"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-nhung-tac-nhan-thoi-tiet-lam-inox-xuong-cap\">Nh\u1eefng t\u00e1c nh\u00e2n th\u1eddi ti\u1ebft l\u00e0m Inox xu\u1ed1ng c\u1ea5p<\/a><\/li>\n<li><a href=\"#toc-1-chon-mac-va-hoan-thien-be-mat-phu-hop-neu-thay-the\">Ch\u1ecdn m\u00e1c v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p (n\u1ebfu thay th\u1ebf\/n\u00e2ng c\u1ea5p)<\/a><\/li>\n<li><a href=\"#toc-2-lich-ve-sinh-theo-moi-truong-toi-uu-hoa-chi-phi-hi\">L\u1ecbch v\u1ec7 sinh theo m\u00f4i tr\u01b0\u1eddng (t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed \u2013 hi\u1ec7u qu\u1ea3)<\/a><\/li>\n<li><a href=\"#toc-3-quy-trinh-ve-sinh-tieu-chuan-ap-dung-da-so-truong-\">Quy tr\u00ecnh v\u1ec7 sinh ti\u00eau chu\u1ea9n (\u00e1p d\u1ee5ng \u0111a s\u1ed1 tr\u01b0\u1eddng h\u1ee3p)<\/a><\/li>\n<li><a href=\"#toc-4-xu-ly-su-co-thuong-gap-ngoai-troi\">X\u1eed l\u00fd s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p ngo\u00e0i tr\u1eddi<\/a><\/li>\n<li><a href=\"#toc-5-thu-dong-hoa-passivation-de-tang-suc-de-khang-an-m\">Th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) \u0111\u1ec3 t\u0103ng s\u1ee9c \u0111\u1ec1 kh\u00e1ng \u0103n m\u00f2n<\/a><\/li>\n<li><a href=\"#toc-6-dien-danh-bong-electropolishing-va-khi-nao-nen-dun\">\u0110i\u1ec7n \u0111\u00e1nh b\u00f3ng (electropolishing) v\u00e0 khi n\u00e0o n\u00ean d\u00f9ng<\/a><\/li>\n<li><a href=\"#toc-7-phu-bao-ve-be-mat-sau-lam-sach\">Ph\u1ee7 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t sau l\u00e0m s\u1ea1ch<\/a><\/li>\n<li><a href=\"#toc-8-oc-vit-ban-le-moi-noi-phong-an-mon-dien-hoa-va-ket\">\u1ed0c v\u00edt, b\u1ea3n l\u1ec1, m\u1ed1i n\u1ed1i: ph\u00f2ng \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a v\u00e0 k\u1eb9t d\u00ednh<\/a><\/li>\n<li><a href=\"#toc-9-ngan-ngua-nhiem-ban-trong-su-dung-va-thi-cong\">Ng\u0103n ng\u1eeba nhi\u1ec5m b\u1ea9n trong s\u1eed d\u1ee5ng v\u00e0 thi c\u00f4ng<\/a><\/li>\n<li><a href=\"#toc-10-lich-kiem-tra-dinh-ky-checklist-nhanh\">L\u1ecbch ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 (checklist nhanh)<\/a><\/li>\n<li><a href=\"#toc-11-nghien-cuu-thuc-te-ngan-lan-can-304-ven-bien-da-na\">Nghi\u00ean c\u1ee9u th\u1ef1c t\u1ebf ng\u1eafn: lan can 304 ven bi\u1ec3n \u0110\u00e0 N\u1eb5ng<\/a><\/li>\n<li><a href=\"#toc-12-cau-hoi-nhanh-dap-gon\">C\u00e2u h\u1ecfi nhanh \u2013 \u0111\u00e1p g\u1ecdn<\/a><\/li>\n<li><a href=\"#toc-13-an-toan-va-moi-truong\">An to\u00e0n v\u00e0 m\u00f4i tr\u01b0\u1eddng<\/a><\/li>\n<li><a href=\"#toc-14-khi-nao-nen-goi-dich-vu-chuyen-nghiep\">Khi n\u00e0o n\u00ean g\u1ecdi d\u1ecbch v\u1ee5 chuy\u00ean nghi\u1ec7p<\/a><\/li>\n<li><a href=\"#toc-15-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-16-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) r\u1ea5t ph\u00f9 h\u1ee3p cho lan can, c\u1ed5ng ngo\u00e0i tr\u1eddi nh\u1edd \u0111\u1ed9 b\u1ec1n v\u00e0 t\u00ednh th\u1ea9m m\u1ef9. Tuy nhi\u00ean, gi\u00f3 bi\u1ec3n, m\u01b0a axit, b\u1ee5i kim lo\u1ea1i v\u00e0 n\u01b0\u1edbc \u0111\u1ecdng c\u00f3 th\u1ec3 g\u00e2y \u1ed1 tr\u00e0 (tea staining), r\u1ed7 pitting v\u00e0 x\u1ec9n m\u00e0u n\u1ebfu kh\u00f4ng b\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang c\u00e1ch. B\u00e0i vi\u1ebft n\u00e0y t\u1ed5ng h\u1ee3p quy tr\u00ecnh, l\u1ecbch v\u1ec7 sinh, h\u00f3a ch\u1ea5t n\u00ean\/kh\u00f4ng n\u00ean d\u00f9ng, c\u00f9ng c\u00e1c bi\u1ec7n ph\u00e1p th\u1ee5 \u0111\u1ed9ng h\u00f3a v\u00e0 ph\u1ee7 b\u1ea3o v\u1ec7 \u0111\u1ec3 c\u00f4ng tr\u00ecnh b\u1ec1n \u0111\u1eb9p tr\u00ean 10 n\u0103m. \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t ph\u1ea7n thi\u1ebft y\u1ebfu trong ch\u1ee7 \u0111\u1ec1 r\u1ed9ng h\u01a1n \u201cB\u1ea3o d\u01b0\u1ee1ng, V\u1ec7 sinh v\u00e0 Ph\u1ee5c h\u1ed3i c\u00e1c S\u1ea3n ph\u1ea9m Inox\u201d.<\/p>\n<h2 id=\"toc-0-nhung-tac-nhan-thoi-tiet-lam-inox-xuong-cap\">Nh\u1eefng t\u00e1c nh\u00e2n th\u1eddi ti\u1ebft l\u00e0m Inox xu\u1ed1ng c\u1ea5p<\/h2>\n<p>&#8211; Mu\u1ed1i clorua (gi\u00f3 bi\u1ec3n, h\u01a1i n\u01b0\u1edbc m\u1eb7n, h\u1ed3 b\u01a1i): th\u00fac \u0111\u1ea9y \u0103n m\u00f2n r\u1ed7 v\u00e0 \u1ed1 tr\u00e0, \u0111\u1eb7c bi\u1ec7t tr\u00ean inox 201\/304.<br \/>\n&#8211; M\u01b0a axit, SOx\/NOx\/PM c\u00f4ng nghi\u1ec7p \u2013 \u0111\u00f4 th\u1ecb: b\u00e1m b\u1ea9n, t\u0103ng t\u00ednh \u0103n m\u00f2n k\u1ebd h\u1edf.<br \/>\n&#8211; B\u1ee5i s\u1eaft t\u1eeb gia c\u00f4ng th\u00e9p cacbon l\u00e2n c\u1eadn: g\u00e2y \u201cr\u1ec9 gi\u1ea3\u201d n\u00e2u \u0111\u1ecf tr\u00ean b\u1ec1 m\u1eb7t inox.<br \/>\n&#8211; N\u01b0\u1edbc \u0111\u1ecdng, khe h\u1edf, m\u1ed1i h\u00e0n ch\u01b0a x\u1eed l\u00fd: t\u1ea1o \u0111i\u1ec3m gi\u1eef mu\u1ed1i v\u00e0 ch\u1ea5t b\u1ea9n.<br \/>\n&#8211; \u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t cao (#4 nh\u00e1m s\u00e2u, x\u01b0\u1edbc ngang \u0111\u1ecdng n\u01b0\u1edbc): d\u1ec5 \u1ed1 tr\u00e0 h\u01a1n ho\u00e0n thi\u1ec7n m\u1ecbn (#6, #7, #8).<\/p>\n<h2 id=\"toc-1-chon-mac-va-hoan-thien-be-mat-phu-hop-neu-thay-the\">Ch\u1ecdn m\u00e1c v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p (n\u1ebfu thay th\u1ebf\/n\u00e2ng c\u1ea5p)<\/h2>\n<p>&#8211; M\u00e1c th\u00e9p:<br \/>\n  &#8211; 304\/304L: \u0111\u1ee7 cho n\u1ed9i \u0111\u1ecba, \u0111\u00f4 th\u1ecb s\u1ea1ch.<br \/>\n  &#8211; 316\/316L (c\u00f3 Mo): khuy\u1ebfn ngh\u1ecb cho ven bi\u1ec3n, h\u1ed3 b\u01a1i, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t.<br \/>\n  &#8211; 201: ch\u1ec9 n\u00ean d\u00f9ng trong nh\u00e0; ngo\u00e0i tr\u1eddi d\u1ec5 \u1ed1 v\u00e0 r\u1ed7, \u0111\u1eb7c bi\u1ec7t v\u00f9ng bi\u1ec3n.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n: h\u01b0\u1edbng t\u1edbi b\u1ec1 m\u1eb7t m\u1ecbn, Ra \u2264 0,5 \u03bcm; n\u1ebfu ch\u1ea3i x\u01b0\u1edbc #4, \u01b0u ti\u00ean h\u01b0\u1edbng x\u01b0\u1edbc d\u1ecdc theo h\u01b0\u1edbng tho\u00e1t n\u01b0\u1edbc \u0111\u1ec3 gi\u1ea3m \u0111\u1ecdng b\u1ea9n.<br \/>\n&#8211; Ph\u1ee5 ki\u1ec7n\/\u1ed1c v\u00edt: d\u00f9ng c\u00f9ng ho\u1eb7c cao c\u1ea5p h\u01a1n (316L), tr\u00e1nh c\u1eb7p kh\u00e1c kim lo\u1ea1i g\u00e2y \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a; d\u00f9ng long \u0111en nylon\/PTFE c\u00e1ch \u0111i\u1ec7n khi c\u00f3 ti\u1ebfp x\u00fac kim lo\u1ea1i kh\u00e1c.<\/p>\n<h2 id=\"toc-2-lich-ve-sinh-theo-moi-truong-toi-uu-hoa-chi-phi-hi\">L\u1ecbch v\u1ec7 sinh theo m\u00f4i tr\u01b0\u1eddng (t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed \u2013 hi\u1ec7u qu\u1ea3)<\/h2>\n<p>&#8211; N\u00f4ng th\u00f4n s\u1ea1ch: 3\u20136 th\u00e1ng\/l\u1ea7n.<br \/>\n&#8211; \u0110\u00f4 th\u1ecb\/ven \u0111\u01b0\u1eddng b\u1ee5i b\u1ea9n: 1\u20132 th\u00e1ng\/l\u1ea7n.<br \/>\n&#8211; Khu c\u00f4ng nghi\u1ec7p, \u00f4 nhi\u1ec5m SOx\/NOx: 2\u20134 tu\u1ea7n\/l\u1ea7n.<br \/>\n&#8211; Ven bi\u1ec3n (<5 km b\u1edd, gi\u00f3 bi\u1ec3n tr\u1ef1c di\u1ec7n): 1\u20134 tu\u1ea7n\/l\u1ea7n; c\u00e0ng g\u1ea7n bi\u1ec3n c\u00e0ng c\u1ea7n t\u0103ng t\u1ea7n su\u1ea5t.  \n- Khu h\u1ed3 b\u01a1i n\u01b0\u1edbc clo: 1\u20132 tu\u1ea7n\/l\u1ea7n.  \nGhi ch\u00fa: sau b\u00e3o, m\u01b0a gi\u00f3 l\u1edbn c\u00f3 h\u01a1i mu\u1ed1i, n\u00ean r\u1eeda x\u1ea3 ngay b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch.\n\n\n\n<h2 id=\"toc-3-quy-trinh-ve-sinh-tieu-chuan-ap-dung-da-so-truong-\">Quy tr\u00ecnh v\u1ec7 sinh ti\u00eau chu\u1ea9n (\u00e1p d\u1ee5ng \u0111a s\u1ed1 tr\u01b0\u1eddng h\u1ee3p)<\/h2>\n<h3>D\u1ee5ng c\u1ee5 v\u00e0 h\u00f3a ch\u1ea5t<\/h3>\n<p>&#8211; N\u01b0\u1edbc s\u1ea1ch (t\u1ed1t nh\u1ea5t n\u01b0\u1edbc m\u00e1y \u00edt kho\u00e1ng), kh\u0103n microfiber, b\u00e0n ch\u1ea3i nylon m\u1ec1m.<br \/>\n&#8211; X\u00e0 ph\u00f2ng trung t\u00ednh pH 6\u20138 ho\u1eb7c ch\u1ea5t t\u1ea9y r\u1eeda k\u00ednh\/inox chuy\u00ean d\u1ee5ng kh\u00f4ng ch\u1ee9a clo.<br \/>\n&#8211; C\u1ed3n isopropyl\/ethanol 70\u201390% \u0111\u1ec3 x\u1eed l\u00fd v\u1ebft d\u1ea7u m\u1ee1.<br \/>\n&#8211; B\u00ecnh x\u1ecbt, x\u00f4, g\u0103ng nitrile, k\u00ednh b\u1ea3o h\u1ed9.<br \/>\nTr\u00e1nh tuy\u1ec7t \u0111\u1ed1i: ch\u1ea5t t\u1ea9y c\u00f3 chlorine\/bleach (NaOCl), axit clohydric (HCl), b\u00e0n ch\u1ea3i\/th\u00e9p gai, gi\u1ea5y nh\u00e1m th\u00f4, b\u00f9i nh\u00f9i th\u00e9p cacbon.<\/p>\n<h3>C\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n<\/h3>\n<p>1) X\u1ea3 tr\u00f4i: Phun r\u1eeda b\u1ec1 m\u1eb7t b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch \u0111\u1ec3 lo\u1ea1i c\u00e1t\/mu\u1ed1i, tr\u00e1nh c\u1ecd x\u00e1t khi c\u00f2n h\u1ea1t m\u00e0i.<br \/>\n2) T\u1ea9y r\u1eeda: Pha dung d\u1ecbch x\u00e0 ph\u00f2ng trung t\u00ednh (2\u20135%), lau\/ch\u1ea3i nh\u1eb9 theo th\u1edb b\u1ec1 m\u1eb7t 3\u20135 ph\u00fat.<br \/>\n3) R\u1eeda k\u1ef9: X\u1ea3 l\u1ea1i th\u1eadt s\u1ea1ch, \u0111\u1eb7c bi\u1ec7t c\u00e1c khe, m\u00e9p m\u1ed1i h\u00e0n.<br \/>\n4) Lau kh\u00f4: D\u00f9ng microfiber kh\u00f4; kh\u00f4ng \u0111\u1ec3 kh\u00f4 t\u1ef1 nhi\u00ean n\u1ebfu n\u01b0\u1edbc c\u1ee9ng (\u0111\u1ecdng c\u1eb7n v\u00f4i).<br \/>\n5) Ho\u00e0n thi\u1ec7n: D\u00f9ng c\u1ed3n cho v\u1ebft d\u1ea7u\/m\u1ed3 h\u00f4i; lau b\u00f3ng b\u1eb1ng kh\u0103n m\u1ec1m.<\/p>\n<p>M\u1eb9o thi c\u00f4ng: lu\u00f4n th\u1eed \u1edf v\u00f9ng khu\u1ea5t tr\u01b0\u1edbc; l\u00e0m m\u1ea3ng nh\u1ecf theo chi\u1ec1u t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi; thay kh\u0103n khi b\u1ea9n \u0111\u1ec3 kh\u00f4ng t\u00e1i b\u00e1m.<\/p>\n<h2 id=\"toc-4-xu-ly-su-co-thuong-gap-ngoai-troi\">X\u1eed l\u00fd s\u1ef1 c\u1ed1 th\u01b0\u1eddng g\u1eb7p ngo\u00e0i tr\u1eddi<\/h2>\n<p>&#8211; \u1ed0 tr\u00e0 (v\u1ec7t n\u00e2u v\u00e0ng, nh\u1ea5t l\u00e0 tr\u00ean #4):<br \/>\n  &#8211; D\u00f9ng dung d\u1ecbch axit oxalic 5\u201310% ho\u1eb7c ch\u1ea5t t\u1ea9y \u1ed1 inox chuy\u00ean d\u1ee5ng, thoa 5\u201310 ph\u00fat, ch\u00e0 nylon, r\u1eeda k\u1ef9, lau kh\u00f4.<br \/>\n  &#8211; V\u1edbi v\u1ebft b\u1ec1n \u0111\u1ea7u, l\u1eb7p l\u1ea1i 1\u20132 l\u1ea7n; sau \u0111\u00f3 c\u00e2n nh\u1eafc th\u1ee5 \u0111\u1ed9ng h\u00f3a (m\u1ee5c d\u01b0\u1edbi).<br \/>\n&#8211; \u201cR\u1ec9 gi\u1ea3\u201d do nhi\u1ec5m s\u1eaft:<br \/>\n  &#8211; D\u00f9ng gel t\u1ea9y g\u1ec9 inox (th\u01b0\u1eddng n\u1ec1n axit h\u1eefu c\u01a1), ch\u00e0 nylon; kh\u00f4ng d\u00f9ng b\u00f9i nh\u00f9i th\u00e9p.<br \/>\n&#8211; C\u1eb7n xi m\u0103ng\/v\u00f4i:<br \/>\n  &#8211; C\u1ea1o c\u01a1 h\u1ecdc b\u1eb1ng nh\u1ef1a; d\u00f9ng ch\u1ea5t t\u1ea9y c\u1eb7n g\u1ed1c nh\u1eb9 (kh\u00f4ng HCl). Trung h\u00f2a, r\u1eeda k\u1ef9.<br \/>\n&#8211; S\u01a1n b\u00e1m:<br \/>\n  &#8211; D\u00f9ng dao nh\u1ef1a g\u1ee1 th\u00f4, ti\u1ebfp theo dung m\u00f4i an to\u00e0n cho inox (isopropyl\/acetone), th\u1eed c\u1ee5c b\u1ed9 tr\u01b0\u1edbc.<br \/>\n&#8211; V\u1ec7t h\u00e0n v\u00e0ng\/xanh (oxy h\u00f3a sau h\u00e0n):<br \/>\n  &#8211; D\u00f9ng gel pickling d\u00e0nh cho inox ho\u1eb7c ch\u00e0 b\u1eb1ng b\u00e1nh m\u00e0i Scotch-Brite m\u1ecbn; sau \u0111\u00f3 th\u1ee5 \u0111\u1ed9ng h\u00f3a.<br \/>\n&#8211; R\u1ed7 pitting nh\u1ecf:<br \/>\n  &#8211; L\u00e0m s\u1ea1ch, d\u00f9ng gi\u1ea5y nh\u00e1m si\u00eau m\u1ecbn 800\u20131200 theo th\u1edb, t\u1ea9y \u1ed1, th\u1ee5 \u0111\u1ed9ng h\u00f3a, ph\u1ee7 b\u1ea3o v\u1ec7. N\u1ebfu r\u1ed7 s\u00e2u, c\u00e2n nh\u1eafc thay chi ti\u1ebft.<\/p>\n<p>L\u01b0u \u00fd: lu\u00f4n \u0111eo PPE, trung h\u00f2a d\u01b0 l\u01b0\u1ee3ng axit b\u1eb1ng dung d\u1ecbch NaHCO\u2083 lo\u00e3ng, thu gom theo quy \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng.<\/p>\n<h2 id=\"toc-5-thu-dong-hoa-passivation-de-tang-suc-de-khang-an-m\">Th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) \u0111\u1ec3 t\u0103ng s\u1ee9c \u0111\u1ec1 kh\u00e1ng \u0103n m\u00f2n<\/h2>\n<p>M\u1ee5c ti\u00eau: t\u00e1i t\u1ea1o l\u1edbp oxit cr\u00f4m b\u1ec1n, lo\u1ea1i b\u1ecf s\u1eaft t\u1ef1 do sau v\u1ec7 sinh m\u1ea1nh ho\u1eb7c sau h\u00e0n\/m\u00e0i.<br \/>\n&#8211; T\u00f9y ch\u1ecdn \u01b0a d\u00f9ng hi\u1ec7n nay: axit citric 4\u201310% \u1edf 21\u201360\u00b0C trong 20\u201360 ph\u00fat, sau \u0111\u00f3 r\u1eeda n\u01b0\u1edbc s\u1ea1ch \u0111\u1ebfn pH trung t\u00ednh v\u00e0 s\u1ea5y kh\u00f4.<br \/>\n&#8211; T\u00f9y ch\u1ecdn nitric (chuy\u00ean nghi\u1ec7p): HNO\u2083 20\u201340% c\u00f3 hi\u1ec7u qu\u1ea3 nh\u01b0ng nguy hi\u1ec3m h\u01a1n, c\u1ea7n \u0111\u01a1n v\u1ecb chuy\u00ean m\u00f4n v\u00e0 tu\u00e2n th\u1ee7 nghi\u00eam an to\u00e0n.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n tham chi\u1ebfu: ASTM A967\/A967M v\u00e0 ISO 16048 quy \u0111\u1ecbnh quy tr\u00ecnh, n\u1ed3ng \u0111\u1ed9, th\u1eddi gian v\u00e0 ki\u1ec3m tra.<br \/>\nT\u1ea7n su\u1ea5t: \u00e1p d\u1ee5ng sau x\u1eed l\u00fd h\u00e0n, sau t\u1ea9y \u1ed1 m\u1ea1nh, ho\u1eb7c \u0111\u1ecbnh k\u1ef3 1\u20132 n\u0103m\/l\u1ea7n t\u1ea1i m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n kh\u1eafc nghi\u1ec7t.<\/p>\n<h2 id=\"toc-6-dien-danh-bong-electropolishing-va-khi-nao-nen-dun\">\u0110i\u1ec7n \u0111\u00e1nh b\u00f3ng (electropolishing) v\u00e0 khi n\u00e0o n\u00ean d\u00f9ng<\/h2>\n<p>&#8211; \u0110i\u1ec7n \u0111\u00e1nh b\u00f3ng lo\u1ea1i b\u1ecf micro-peaks, gi\u1ea3m Ra, t\u0103ng s\u00e1ng b\u00f3ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u1ed1 b\u00e1m, \u0111\u1eb7c bi\u1ec7t hi\u1ec7u qu\u1ea3 cho lan can inox 304\/316 ngo\u00e0i tr\u1eddi.<br \/>\n&#8211; N\u00ean c\u00e2n nh\u1eafc cho c\u00f4ng tr\u00ecnh ven bi\u1ec3n, khu resort; chi ph\u00ed cao h\u01a1n nh\u01b0ng gi\u1ea3m t\u1ea7n su\u1ea5t v\u1ec7 sinh, b\u1ec1n m\u00e0u l\u00e2u.<\/p>\n<h2 id=\"toc-7-phu-bao-ve-be-mat-sau-lam-sach\">Ph\u1ee7 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t sau l\u00e0m s\u1ea1ch<\/h2>\n<p>&#8211; L\u1edbp ph\u1ee7 polymer\/siloxane ho\u1eb7c s\u00e1p vi tinh th\u1ec3 chuy\u00ean d\u1ee5ng cho inox t\u1ea1o hi\u1ec7u \u1ee9ng k\u1ef5 n\u01b0\u1edbc, gi\u1ea3m b\u00e1m mu\u1ed1i\/b\u1ee5i.<br \/>\n&#8211; Quy tr\u00ecnh: l\u00e0m s\u1ea1ch \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a (n\u1ebfu c\u1ea7n) \u2013 s\u1ea5y kh\u00f4 \u2013 ph\u1ee7 l\u1edbp m\u1ecfng \u2013 lau b\u00f3ng.<br \/>\n&#8211; Chu k\u1ef3: 3\u20136 th\u00e1ng\/l\u1ea7n; ven bi\u1ec3n 1\u20133 th\u00e1ng\/l\u1ea7n.<br \/>\n&#8211; Tr\u00e1nh s\u01a1n ph\u1ee7 th\u00f4ng th\u01b0\u1eddng v\u00ec inox b\u00e1m s\u01a1n k\u00e9m n\u1ebfu kh\u00f4ng c\u00f3 x\u1eed l\u00fd primer chuy\u00ean d\u1ee5ng; l\u1edbp s\u01a1n d\u1ec5 bong tr\u00f3c v\u00e0 gi\u1eef \u1ea9m mu\u1ed1i.<\/p>\n<h2 id=\"toc-8-oc-vit-ban-le-moi-noi-phong-an-mon-dien-hoa-va-ket\">\u1ed0c v\u00edt, b\u1ea3n l\u1ec1, m\u1ed1i n\u1ed1i: ph\u00f2ng \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a v\u00e0 k\u1eb9t d\u00ednh<\/h2>\n<p>&#8211; D\u00f9ng \u1ed1c v\u00edt, ph\u1ee5 ki\u1ec7n \u0111\u1ed3ng c\u1ea5p ho\u1eb7c cao c\u1ea5p h\u01a1n (316L); tr\u00e1nh c\u1eb7p inox v\u1edbi th\u00e9p cacbon tr\u1ea7n.<br \/>\n&#8211; C\u00e1ch \u0111i\u1ec7n khi ti\u1ebfp x\u00fac kim lo\u1ea1i kh\u00e1c b\u1eb1ng long \u0111en\/\u0111\u1ec7m nylon, m\u0169 ch\u1ee5p, s\u01a1n k\u1ebdm ph\u1ea7n kh\u00f4ng inox.<br \/>\n&#8211; Ch\u1ed1ng k\u1eb9t d\u00ednh ren (galling): b\u00f4i m\u1ee1 ch\u1ed1ng k\u1eb9t kh\u00f4ng ch\u1ee9a chloride (g\u1ed1c molybdenum disulfide ho\u1eb7c nickel), nh\u1ea5t l\u00e0 v\u1edbi 316L.<\/p>\n<h2 id=\"toc-9-ngan-ngua-nhiem-ban-trong-su-dung-va-thi-cong\">Ng\u0103n ng\u1eeba nhi\u1ec5m b\u1ea9n trong s\u1eed d\u1ee5ng v\u00e0 thi c\u00f4ng<\/h2>\n<p>&#8211; Kh\u00f4ng m\u00e0i\/c\u1eaft th\u00e9p cacbon g\u1ea7n lan can\/c\u1ed5ng inox khi kh\u00f4ng che ch\u1eafn; h\u1ea1t m\u00e0i b\u00e1m g\u00e2y r\u1ec9.<br \/>\n&#8211; D\u00f9ng d\u1ee5ng c\u1ee5, gi\u1ea5y nh\u00e1m ch\u1ec9 \u0111\u1ecbnh cho inox; kh\u00f4ng d\u00f9ng chung v\u1edbi th\u00e9p cacbon.<br \/>\n&#8211; Thi\u1ebft k\u1ebf\/retrofit: \u0111\u1ea3m b\u1ea3o tho\u00e1t n\u01b0\u1edbc t\u1ed1t, b\u1ecbt k\u00edn khe h\u1edf gi\u1eef mu\u1ed1i, bo m\u00e9p\/m\u00e0i nh\u1eb5n m\u1ed1i h\u00e0n; che ch\u1eafn t\u1ea1m th\u1eddi khi s\u01a1n\/\u0111\u1ed5 b\u00ea t\u00f4ng l\u00e2n c\u1eadn.<\/p>\n<h2 id=\"toc-10-lich-kiem-tra-dinh-ky-checklist-nhanh\">L\u1ecbch ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 (checklist nhanh)<\/h2>\n<p>&#8211; Sau m\u01b0a b\u00e3o\/gi\u00f3 bi\u1ec3n m\u1ea1nh: r\u1eeda n\u01b0\u1edbc ng\u1ecdt trong 24 gi\u1edd.<br \/>\n&#8211; H\u00e0ng th\u00e1ng: ki\u1ec3m tra \u1ed1 tr\u00e0, v\u1ebft r\u1ec9 n\u00e2u, n\u01b0\u1edbc \u0111\u1ecdng \u1edf ch\u00e2n tr\u1ee5, khe h\u00e0n; lau v\u1ec7 sinh.<br \/>\n&#8211; H\u00e0ng qu\u00fd: v\u1ec7 sinh k\u1ef9 to\u00e0n b\u1ed9; ki\u1ec3m tra s\u1ef1 l\u1ecfng c\u1ee7a bul\u00f4ng, b\u00f4i m\u1ee1 ch\u1ed1ng k\u1eb9t.<br \/>\n&#8211; H\u00e0ng n\u0103m: \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 b\u00f3ng, \u0111\u1ed9 nh\u00e1m, x\u1eed l\u00fd c\u00e1c v\u1ebft r\u1ed7 c\u1ee5c b\u1ed9; th\u1ee5 \u0111\u1ed9ng h\u00f3a n\u1ebfu m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<h2 id=\"toc-11-nghien-cuu-thuc-te-ngan-lan-can-304-ven-bien-da-na\">Nghi\u00ean c\u1ee9u th\u1ef1c t\u1ebf ng\u1eafn: lan can 304 ven bi\u1ec3n \u0110\u00e0 N\u1eb5ng<\/h2>\n<p>&#8211; Hi\u1ec7n tr\u1ea1ng: \u1ed1 tr\u00e0 m\u1ea3ng r\u1ed9ng sau 8 th\u00e1ng, \u0111\u1eb7c bi\u1ec7t ph\u00eda h\u01b0\u1edbng gi\u00f3 bi\u1ec3n.<br \/>\n&#8211; X\u1eed l\u00fd: x\u1ecbt r\u1eeda \u2013 t\u1ea9y \u1ed1 b\u1eb1ng oxalic 10% 2 l\u1ea7n \u2013 r\u1eeda \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a citric 7% 30 ph\u00fat \u2013 ph\u1ee7 polymer.<br \/>\n&#8211; K\u1ebft qu\u1ea3: lo\u1ea1i b\u1ecf 95% \u1ed1 tr\u00e0, b\u1ec1 m\u1eb7t s\u00e1ng b\u00f3ng; sau 4 th\u00e1ng duy tr\u00ec ch\u1ec9 c\u1ea7n lau \u0111\u1ecbnh k\u1ef3 2 tu\u1ea7n\/l\u1ea7n, kh\u00f4ng t\u00e1i \u1ed1 \u0111\u00e1ng k\u1ec3.<\/p>\n<h2 id=\"toc-12-cau-hoi-nhanh-dap-gon\">C\u00e2u h\u1ecfi nhanh \u2013 \u0111\u00e1p g\u1ecdn<\/h2>\n<p>&#8211; C\u00f3 d\u00f9ng Javen (chlorine) \u0111\u1ec3 t\u1ea9y \u1ed1 inox? Kh\u00f4ng. Clo th\u00fac \u0111\u1ea9y \u0103n m\u00f2n r\u1ed7, \u0111\u1eb7c bi\u1ec7t \u1edf 304\/201.<br \/>\n&#8211; N\u01b0\u1edbc m\u01b0a c\u00f3 \u201ct\u1ef1 l\u00e0m s\u1ea1ch\u201d inox? M\u1ed9t ph\u1ea7n, nh\u01b0ng kh\u00f4ng \u0111\u1ee7 \u1edf \u0111\u00f4 th\u1ecb\/ven bi\u1ec3n do mu\u1ed1i v\u00e0 b\u1ee5i b\u00e1m kh\u00f4.<br \/>\n&#8211; D\u00f9ng m\u00e1y r\u1eeda \u00e1p l\u1ef1c cao? C\u00f3 th\u1ec3, nh\u01b0ng gi\u1eef kho\u1ea3ng c\u00e1ch >30\u201340 cm, tr\u00e1nh x\u1ecbt tr\u1ef1c di\u1ec7n m\u1ed1i h\u00e0n\/khe h\u1edf g\u00e2y x\u00e2m th\u1ef1c.<br \/>\n&#8211; D\u00f9ng x\u0103ng\/WD-40? Ch\u1ec9 \u0111\u1ec3 t\u1ea9y d\u1ea7u c\u1ee5c b\u1ed9; sau \u0111\u00f3 ph\u1ea3i r\u1eeda s\u1ea1ch b\u1eb1ng x\u00e0 ph\u00f2ng trung t\u00ednh \u0111\u1ec3 tr\u00e1nh b\u00e1m b\u1ee5i.<\/p>\n<h2 id=\"toc-13-an-toan-va-moi-truong\">An to\u00e0n v\u00e0 m\u00f4i tr\u01b0\u1eddng<\/h2>\n<p>&#8211; \u0110\u1ecdc SDS c\u1ee7a h\u00f3a ch\u1ea5t; d\u00f9ng g\u0103ng, k\u00ednh, kh\u1ea9u trang ph\u00f9 h\u1ee3p.<br \/>\n&#8211; Kh\u00f4ng tr\u1ed9n ch\u1ea5t t\u1ea9y axit v\u00e0 ki\u1ec1m\/clo.<br \/>\n&#8211; Trung h\u00f2a dung d\u1ecbch axit th\u1ea3i b\u1eb1ng NaHCO\u2083, thu gom theo quy \u0111\u1ecbnh \u0111\u1ecba ph\u01b0\u01a1ng; kh\u00f4ng x\u1ea3 tr\u1ef1c ti\u1ebfp ra c\u1ed1ng r\u00e3nh.<\/p>\n<h2 id=\"toc-14-khi-nao-nen-goi-dich-vu-chuyen-nghiep\">Khi n\u00e0o n\u00ean g\u1ecdi d\u1ecbch v\u1ee5 chuy\u00ean nghi\u1ec7p<\/h2>\n<p>&#8211; R\u1ed7 pitting lan r\u1ed9ng, bi\u1ebfn d\u1ea1ng m\u1ed1i h\u00e0n, ho\u1eb7c c\u1ea7n \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng\/th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ASTM A967.<br \/>\n&#8211; C\u00f4ng tr\u00ecnh cao t\u1ea7ng\/kh\u00f3 ti\u1ebfp c\u1eadn c\u1ea7n gi\u00e0n gi\u00e1o, d\u00e2y an to\u00e0n.<br \/>\n&#8211; Y\u00eau c\u1ea7u ph\u1ee5c h\u1ed3i ho\u00e0n thi\u1ec7n th\u1ea9m m\u1ef9 cao (brushed \u0111\u1ed3ng \u0111\u1ec1u, mirror #8).<\/p>\n<h2 id=\"toc-15-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; ASSDA \u2013 Preventing Coastal Corrosion: Tea Staining of Stainless Steel (H\u01b0\u1edbng d\u1eabn v\u1ec7 sinh v\u00e0 ng\u0103n \u1ed1 tr\u00e0) \u2013 assda.asn.au<br \/>\n&#8211; Nickel Institute \u2013 Care and Cleaning of Stainless Steel \u2013 nickelinstitute.org<br \/>\n&#8211; BSSA \u2013 Care and Maintenance of Stainless Steel \u2013 bssa.org.uk<br \/>\n&#8211; ASTM A967\/A967M \u2013 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts \u2013 astm.org<br \/>\n&#8211; ISO 16048 \u2013 Passivation of corrosion resisting steels \u2013 iso.org<\/p>\n<h2 id=\"toc-16-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ed9 b\u1ec1n \u0111\u1eb9p 10+ n\u0103m c\u1ee7a lan can, c\u1ed5ng inox ngo\u00e0i tr\u1eddi ph\u1ee5 thu\u1ed9c v\u00e0o ba tr\u1ee5 c\u1ed9t: ch\u1ecdn \u0111\u00fang v\u1eadt li\u1ec7u\/ho\u00e0n thi\u1ec7n (\u01b0u ti\u00ean 316L cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t), v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 theo m\u00f4i tr\u01b0\u1eddng b\u1eb1ng h\u00f3a ch\u1ea5t trung t\u00ednh v\u00e0 c\u00f4ng c\u1ee5 \u0111\u00fang, c\u00f9ng c\u00e1c bi\u1ec7n ph\u00e1p ph\u1ee5c h\u1ed3i \u2013 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t (t\u1ea9y \u1ed1, th\u1ee5 \u0111\u1ed9ng h\u00f3a, ph\u1ee7 polymer). Tu\u00e2n th\u1ee7 l\u1ecbch ki\u1ec3m tra v\u00e0 x\u1eed l\u00fd s\u1edbm \u1ed1 tr\u00e0\/r\u1ed7 nh\u1ecf s\u1ebd ng\u0103n h\u01b0 h\u1ea1i lan r\u1ed9ng, t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n m\u00e1c inox, quy tr\u00ecnh h\u00f3a ch\u1ea5t chu\u1ea9n v\u00e0 b\u00e1o gi\u00e1 v\u1eadt t\u01b0 \u2013 thi c\u00f4ng? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh: Hotline 0343.417.281 \u2013 Email inoxcongnghiep.cuongthinh@gmail.com \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 nhanh v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn chi ti\u1ebft b\u1ea3o d\u01b0\u1ee1ng lan can, c\u1ed5ng Inox ngo\u00e0i tr\u1eddi: l\u1ecbch v\u1ec7 sinh, x\u1eed l\u00fd \u1ed1 tr\u00e0, th\u1ee5 \u0111\u1ed9ng h\u00f3a, ph\u1ee7 b\u1ea3o v\u1ec7, ch\u1ecdn m\u00e1c th\u00e9p v\u00e0 c\u00e1c l\u1ed7i c\u1ea7n tr\u00e1nh.<\/p>\n","protected":false},"author":7,"featured_media":1058,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1963","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\/1963","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=1963"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1963\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1058"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}