{"id":2048,"date":"2026-05-22T12:34:10","date_gmt":"2026-05-22T05:34:10","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/du-an-ngan-sach-thap-12-giai-phap-toi-uu-chi-phi-khi-dung-inox\/"},"modified":"2026-05-22T12:34:10","modified_gmt":"2026-05-22T05:34:10","slug":"du-an-ngan-sach-thap-12-giai-phap-toi-uu-chi-phi-khi-dung-inox","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/du-an-ngan-sach-thap-12-giai-phap-toi-uu-chi-phi-khi-dung-inox\/","title":{"rendered":"D\u1ef1 \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p: 12 gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u chi ph\u00ed khi d\u00f9ng Inox"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-nguyen-tac-cot-loi-chi-phi-vong-doi-tco-hon-la-gia\">Nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i: chi ph\u00ed v\u00f2ng \u0111\u1eddi (TCO) h\u01a1n l\u00e0 gi\u00e1\/kg<\/a><\/li>\n<li><a href=\"#toc-1-chon-mac-inox-dung-moi-truong-va-muc-dich\">Ch\u1ecdn m\u00e1c Inox \u0111\u00fang m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1ee5c \u0111\u00edch<\/a><\/li>\n<li><a href=\"#toc-2-toi-uu-be-mat-finish-de-giam-chi-phi-ma-van-dep\">T\u1ed1i \u01b0u b\u1ec1 m\u1eb7t (finish) \u0111\u1ec3 gi\u1ea3m chi ph\u00ed m\u00e0 v\u1eabn \u0111\u1eb9p<\/a><\/li>\n<li><a href=\"#toc-3-toi-uu-do-day-tiet-dien-va-thiet-ke-ket-cau\">T\u1ed1i \u01b0u \u0111\u1ed9 d\u00e0y, ti\u1ebft di\u1ec7n v\u00e0 thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u<\/a><\/li>\n<li><a href=\"#toc-4-toi-uu-quy-trinh-gia-cong-va-lien-ket\">T\u1ed1i \u01b0u quy tr\u00ecnh gia c\u00f4ng v\u00e0 li\u00ean k\u1ebft<\/a><\/li>\n<li><a href=\"#toc-5-sourcing-va-mua-hang-thong-minh\">Sourcing v\u00e0 mua h\u00e0ng th\u00f4ng minh<\/a><\/li>\n<li><a href=\"#toc-6-bao-tri-chi-phi-thap-nhung-hieu-qua-cao\">B\u1ea3o tr\u00ec chi ph\u00ed th\u1ea5p nh\u01b0ng hi\u1ec7u qu\u1ea3 cao<\/a><\/li>\n<li><a href=\"#toc-7-vi-du-toi-uu-chi-phi-thuc-te-ung-dung\">V\u00ed d\u1ee5 t\u1ed1i \u01b0u chi ph\u00ed (th\u1ef1c t\u1ebf \u1ee9ng d\u1ee5ng)<\/a><\/li>\n<li><a href=\"#toc-8-checklist-nhanh-cho-du-an-ngan-sach-thap\">Checklist nhanh cho d\u1ef1 \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p<\/a><\/li>\n<\/ul>\n<\/div>\n<p>\u0110\u1ec3 tri\u1ec3n khai d\u1ef1 \u00e1n v\u1edbi ng\u00e2n s\u00e1ch h\u1ea1n ch\u1ebf nh\u01b0ng v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 th\u1ea9m m\u1ef9, t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed v\u1edbi v\u1eadt li\u1ec7u Inox l\u00e0 ch\u00eca kh\u00f3a. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p th\u1ef1c h\u00e0nh, t\u1eeb ch\u1ecdn m\u00e1c th\u00e9p kh\u00f4ng g\u1ec9, b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y \u0111\u1ebfn gia c\u00f4ng, mua h\u00e0ng v\u00e0 b\u1ea3o tr\u00ec. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong c\u00e1ch ch\u1ecdn Inox theo m\u00f4i tr\u01b0\u1eddng, m\u1ee5c \u0111\u00edch v\u00e0 ng\u00e2n s\u00e1ch, nh\u01b0ng t\u1eadp trung ho\u00e0n to\u00e0n v\u00e0o chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u chi ph\u00ed cho d\u1ef1 \u00e1n th\u1ef1c t\u1ebf.<\/p>\n<h2 id=\"toc-0-nguyen-tac-cot-loi-chi-phi-vong-doi-tco-hon-la-gia\">Nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i: chi ph\u00ed v\u00f2ng \u0111\u1eddi (TCO) h\u01a1n l\u00e0 gi\u00e1\/kg<\/h2>\n<p>&#8211; \u0110\u1eb7t m\u1ee5c ti\u00eau t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu (mua + gia c\u00f4ng + l\u1eafp \u0111\u1eb7t + b\u1ea3o tr\u00ec + thay th\u1ebf) th\u1ea5p nh\u1ea5t, kh\u00f4ng ch\u1ec9 gi\u00e1 mua ban \u0111\u1ea7u.<br \/>\n&#8211; Quy t\u1eafc 80\/20: 20% quy\u1ebft \u0111\u1ecbnh \u0111\u00fang (m\u00e1c, b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y, ti\u00eau chu\u1ea9n) th\u01b0\u1eddng ti\u1ebft ki\u1ec7m 10\u201330% t\u1ed5ng chi ph\u00ed.<br \/>\n&#8211; Ch\u1ec9 \u201cgi\u1ea3m m\u00e1c\u201d khi m\u00f4i tr\u01b0\u1eddng v\u00e0 y\u00eau c\u1ea7u s\u1eed d\u1ee5ng cho ph\u00e9p; n\u1ebfu kh\u00f4ng r\u1ee7i ro \u0103n m\u00f2n, \u0111\u1ed5i m\u00e0u, b\u1ea3o h\u00e0nh v\u00e0 thay th\u1ebf s\u1ebd \u0111\u1ed9i chi ph\u00ed.<\/p>\n<h2 id=\"toc-1-chon-mac-inox-dung-moi-truong-va-muc-dich\">Ch\u1ecdn m\u00e1c Inox \u0111\u00fang m\u00f4i tr\u01b0\u1eddng v\u00e0 m\u1ee5c \u0111\u00edch<\/h2>\n<h3>N\u1ed9i th\u1ea5t kh\u00f4, trang tr\u00ed trong nh\u00e0<\/h3>\n<p>&#8211; \u01afu ti\u00ean: Inox 201 ho\u1eb7c 430 \u0111\u1ec3 ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 so v\u1edbi 304.<br \/>\n&#8211; 201 (austenitic, Mn cao) cho: tay v\u1ecbn trong nh\u00e0, \u1ed1p trang tr\u00ed, t\u1ee7 k\u1ec7 kh\u00f4. B\u1ec1n, d\u1ebbo, h\u00e0n t\u1ed1t h\u01a1n 430. Tr\u00e1nh ch\u1ea5t t\u1ea9y ch\u1ee9a chloride.<br \/>\n&#8211; 430 (ferritic, nhi\u1ec5m t\u1eeb): chi ti\u1ebft trang tr\u00ed ph\u1eb3ng, \u1ed1p b\u00e0n t\u1ee7, panel. \u01afu: gi\u00e1 t\u1ed1t, ch\u1ecbu nhi\u1ec7t \u1ed5n. Nh\u01b0\u1ee3c: \u0111\u1ed9 d\u1ebbo k\u00e9m h\u01a1n 201\/304, h\u00e0n y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng.<\/p>\n<h3>Ngo\u00e0i tr\u1eddi n\u1ed9i \u0111\u1ecba (kh\u00f4ng g\u1ea7n bi\u1ec3n)<\/h3>\n<p>&#8211; \u01afu ti\u00ean: 304 cho lan can, ngo\u00e0i nh\u00e0, bi\u1ec3n hi\u1ec7u. N\u1ebfu ng\u00e2n s\u00e1ch th\u1ea5p, c\u00f3 th\u1ec3 d\u00f9ng 201 d\u00e0y h\u01a1n v\u00e0 t\u0103ng b\u1ea3o tr\u00ec (r\u1eeda s\u1ea1ch \u0111\u1ecbnh k\u1ef3, ph\u1ee7 b\u1ea3o v\u1ec7).<br \/>\n&#8211; Tr\u00e1nh 430 \u1edf ngo\u00e0i tr\u1eddi m\u01b0a n\u1eafng li\u00ean t\u1ee5c v\u00ec nguy c\u01a1 g\u1ec9 n\u00e2u \u1edf m\u1ed1i h\u00e0n\/\u0111i\u1ec3m h\u1edf.<\/p>\n<h3>Khu v\u1ef1c ven bi\u1ec3n, h\u1ed3 b\u01a1i, ch\u1ea5t t\u1ea9y ch\u1ee9a chloride<\/h3>\n<p>&#8211; Khuy\u1ebfn ngh\u1ecb: 316\/316L cho \u0103n m\u00f2n chloride. N\u1ebfu bu\u1ed9c ti\u1ebft ki\u1ec7m, 304 v\u1edbi thi\u1ebft k\u1ebf ch\u1ed1ng \u0111\u1ecdng n\u01b0\u1edbc + l\u1ecbch r\u1eeda n\u01b0\u1edbc ng\u1ecdt ch\u1eb7t ch\u1ebd + passivation sau h\u00e0n. Hi\u1ec3u r\u00f5 r\u1ee7i ro \u1ed1 v\u00e0ng\/g\u1ec9 tr\u00e0 \u1edf 304 trong s\u01b0\u01a1ng mu\u1ed1i.<br \/>\n&#8211; Kh\u00f4ng khuy\u1ebfn kh\u00edch 201\/430 t\u1ea1i m\u00f4i tr\u01b0\u1eddng chloride.<\/p>\n<h3>Th\u1ef1c ph\u1ea9m, b\u1ebfp c\u00f4ng nghi\u1ec7p<\/h3>\n<p>&#8211; M\u1eb7t b\u00e0n, ch\u1eadu r\u1eeda: 304\/304L. Khung k\u1ec7 kh\u00f4 trong b\u1ebfp: c\u00f3 th\u1ec3 201 \u0111\u1ec3 ti\u1ebft ki\u1ec7m, nh\u01b0ng tr\u00e1nh ti\u1ebfp x\u00fac mu\u1ed1i\/axit m\u1ea1nh.<br \/>\n&#8211; Tr\u00e1nh d\u00f9ng ch\u1ea5t t\u1ea9y javel\/NaClO tr\u1ef1c ti\u1ebfp l\u00ean b\u1ec1 m\u1eb7t Inox; s\u1ebd g\u00e2y r\u1ed7.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o m\u00e1c v\u00e0 m\u00f4i tr\u01b0\u1eddng: Nickel Institute \u2013 Selection of stainless steels; Outokumpu Corrosion Handbook; ASTM A240 (th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc t\u1ea5m\/l\u00e1).<\/p>\n<h2 id=\"toc-2-toi-uu-be-mat-finish-de-giam-chi-phi-ma-van-dep\">T\u1ed1i \u01b0u b\u1ec1 m\u1eb7t (finish) \u0111\u1ec3 gi\u1ea3m chi ph\u00ed m\u00e0 v\u1eabn \u0111\u1eb9p<\/h2>\n<p>&#8211; 2B\/No.2B: b\u1ec1 m\u1eb7t c\u00e1n ngu\u1ed9i ti\u00eau chu\u1ea9n, gi\u00e1 t\u1ed1t nh\u1ea5t, ph\u00f9 h\u1ee3p c\u00e1n g\u00e2n, d\u1eadp, d\u00e1n phim PVC khi gia c\u00f4ng.<br \/>\n&#8211; BA (Bright Annealed): s\u00e1ng b\u00f3ng h\u01a1n 2B, chi ph\u00ed cao h\u01a1n, d\u00f9ng khi c\u1ea7n ph\u1ea3n x\u1ea1\/\u0111\u1ed3ng \u0111\u1ec1u cao.<br \/>\n&#8211; No.4\/Hairline: v\u00e2n ch\u1ea3i, gi\u1ea5u x\u01b0\u1edbc t\u1ed1t, b\u1ea3o tr\u00ec nh\u1eb9; th\u01b0\u1eddng r\u1ebb h\u01a1n g\u01b0\u01a1ng nh\u01b0ng th\u1ea9m m\u1ef9 cao.<br \/>\n&#8211; No.8 (g\u01b0\u01a1ng): \u0111\u1eb9p nh\u01b0ng chi ph\u00ed gia c\u00f4ng \u2013 \u0111\u00e1nh b\u00f3ng, b\u1ea3o v\u1ec7, v\u1eadn chuy\u1ec3n cao nh\u1ea5t.<br \/>\nG\u1ee3i \u00fd ti\u1ebft ki\u1ec7m:<br \/>\n&#8211; Chuy\u1ec3n t\u1eeb No.8 sang Hairline\/No.4 c\u00f3 th\u1ec3 gi\u1ea3m 10\u201325% chi ph\u00ed b\u1ec1 m\u1eb7t v\u00e0 gi\u1ea3m ph\u00ed s\u1eeda x\u01b0\u1edbc trong l\u1eafp \u0111\u1eb7t.<br \/>\n&#8211; \u0110\u1eb7t h\u00e0ng cu\u1ed9n\/t\u1ea5m \u0111\u00e3 passivation s\u1eb5n t\u1eeb nh\u00e0 m\u00e1y \u0111\u1ec3 gi\u1ea3m chi ph\u00ed t\u1ea9y g\u1ec9 sau h\u00e0n t\u1ea1i c\u00f4ng tr\u01b0\u1eddng.<\/p>\n<h2 id=\"toc-3-toi-uu-do-day-tiet-dien-va-thiet-ke-ket-cau\">T\u1ed1i \u01b0u \u0111\u1ed9 d\u00e0y, ti\u1ebft di\u1ec7n v\u00e0 thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u<\/h2>\n<p>&#8211; Nguy\u00ean t\u1eafc \u201c\u0111\u1ee7 \u2013 \u0111\u00fang ch\u1ed7\u201d: t\u0103ng c\u1ee9ng b\u1eb1ng g\u00e2n, n\u1eb9p, u\u1ed1n m\u00e9p \u0111\u1ec3 cho ph\u00e9p d\u00f9ng t\u1ea5m m\u1ecfng h\u01a1n thay v\u00ec t\u0103ng \u0111\u1ed3ng lo\u1ea1t \u0111\u1ed9 d\u00e0y.<br \/>\n&#8211; G\u1ee3i \u00fd \u0111\u1ed9 d\u00e0y tham kh\u1ea3o (c\u1ea7n ki\u1ec3m tra t\u1ea3i tr\u1ecdng th\u1ef1c):<br \/>\n  &#8211; Lan can trong nh\u00e0: \u1ed0ng 38\u201351 mm, d\u00e0y 0,9\u20131,1 mm (201\/304). Ngo\u00e0i tr\u1eddi: 1,2\u20131,5 mm (304\/316).<br \/>\n  &#8211; M\u1eb7t b\u00e0n b\u1ebfp: 304 d\u00e0y 1,0\u20131,2 mm; b\u1ed5 sung g\u00e2n \u0111\u1ee1\/v\u00e1n l\u00f3t thay v\u00ec ch\u1ecdn 1,5 mm.<br \/>\n  &#8211; V\u1ecf t\u1ee7\/khoang m\u00e1y trong x\u01b0\u1edfng kh\u00f4: 201\/430 d\u00e0y 0,7\u20130,9 mm + g\u00e2n t\u0103ng c\u1ee9ng.<br \/>\n&#8211; Thi\u1ebft k\u1ebf lai (hybrid) \u0111\u1ec3 ti\u1ebft ki\u1ec7m:<br \/>\n  &#8211; D\u00f9ng 201\/430 cho chi ti\u1ebft \u1ea9n, 304 cho b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac\/\u0111i\u1ec3m h\u00e0n ch\u00ednh.<br \/>\n  &#8211; Bu l\u00f4ng\/\u1ed1c: 304\/316 \u0111\u1ec3 tr\u00e1nh g\u1ec9 t\u1ea1i m\u1ed1i gh\u00e9p, ngay c\u1ea3 khi t\u1ea5m l\u00e0 201\/430.<\/p>\n<p>L\u01b0u \u00fd t\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n h\u00f3a: c\u00e1c m\u00e1c austenitic (201\/304\/316) gh\u00e9p v\u1edbi nhau nh\u00ecn chung \u1ed5n; h\u1ea1n ch\u1ebf ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi th\u00e9p carbon \u01b0\u1edbt\/s\u01a1n h\u1ecfng \u0111\u1ec3 tr\u00e1nh g\u1ec9 \u0111i\u1ec7n h\u00f3a.<\/p>\n<h2 id=\"toc-4-toi-uu-quy-trinh-gia-cong-va-lien-ket\">T\u1ed1i \u01b0u quy tr\u00ecnh gia c\u00f4ng v\u00e0 li\u00ean k\u1ebft<\/h2>\n<p>&#8211; C\u1eaft: d\u00f9ng c\u1eaft plasma\/laser cho t\u1ea5m m\u1ecfng \u0111\u1ec3 gi\u1ea3m bavia, ti\u1ebft ki\u1ec7m m\u00e0i. Nesting t\u1ed1t gi\u00fap gi\u1ea3m ph\u1ebf 3\u20137%.<br \/>\n&#8211; H\u00e0n:<br \/>\n  &#8211; T\u1ea5m m\u1ecfng: TIG cho ch\u1ea5t l\u01b0\u1ee3ng cao; MIG xung (pulsed MIG) t\u0103ng t\u1ed1c 2\u20133 l\u1ea7n cho k\u1ebft c\u1ea5u, gi\u1ea3m gi\u1edd c\u00f4ng.<br \/>\n  &#8211; Que\/kim lo\u1ea1i \u0111i\u1ec1n: 308L cho 304; 309L khi h\u00e0n d\u1ecb v\u1eadt li\u1ec7u; 316L cho 316. D\u00f9ng kh\u00ed tr\u1ed9n Ar + 1\u20132% O2 cho MIG Inox \u0111\u1ec3 h\u1ed3 quang \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1eafn t\u00f3e th\u1ea5p.<br \/>\n  &#8211; Gi\u1ea3m bi\u1ebfn m\u00e0u (heat tint) b\u1eb1ng ch\u0103n kh\u00ed sau h\u00e0n ho\u1eb7c b\u1ed9t\/gel pickling r\u1ed3i passivation b\u1eb1ng axit citric.<br \/>\n&#8211; Li\u00ean k\u1ebft c\u01a1 kh\u00ed: t\u00e1n rive\/bul\u00f4ng \u1edf chi ti\u1ebft trang tr\u00ed gi\u00fap b\u1ecf c\u00f4ng h\u00e0n \u2013 m\u00e0i, nh\u1ea5t l\u00e0 v\u1edbi b\u1ec1 m\u1eb7t Hairline.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n: ch\u1ecdn Hairline \u0111\u1ec3 \u201cgi\u1ea5u\u201d v\u1ebft x\u01b0\u1edbc l\u1eafp \u0111\u1eb7t; d\u00f9ng phim PVC d\u00e1n b\u1ea3o v\u1ec7 t\u1ea5m trong v\u1eadn chuy\u1ec3n\/thi c\u00f4ng \u0111\u1ec3 gi\u1ea3m h\u1ecfng b\u1ec1 m\u1eb7t ph\u1ea3i \u0111\u00e1nh b\u00f3ng l\u1ea1i.<\/p>\n<p>Ngu\u1ed3n: AWS D1.6 (Welding of Stainless Steel), Nickel Institute \u2013 Fabrication of stainless steels.<\/p>\n<h2 id=\"toc-5-sourcing-va-mua-hang-thong-minh\">Sourcing v\u00e0 mua h\u00e0ng th\u00f4ng minh<\/h2>\n<p>&#8211; Thi\u1ebft k\u1ebf theo k\u00edch th\u01b0\u1edbc chu\u1ea9n \u0111\u1ec3 c\u1eaft \u00edt ph\u1ebf:<br \/>\n  &#8211; T\u1ea5m: 1219\u00d72438 mm (4\u00d78 ft), 1219\u00d73048 (4\u00d710), 1500\u00d73000 mm.<br \/>\n  &#8211; Cu\u1ed9n: r\u1ed9ng 1000 \/ 1219 \/ 1500 mm.<br \/>\n  &#8211; \u1ed0ng\/h\u1ed9p trang tr\u00ed (ASTM A554): c\u00e2y 6 m.<br \/>\n&#8211; \u0110\u1eb7t \u201cc\u1eaft theo kh\u1ed5\u201d v\u00e0 \u201cc\u1eaft theo chi\u1ec1u d\u00e0i\u201d \u0111\u1ec3 gi\u1ea3m 5\u201310% ph\u1ebf li\u1ec7u, \u0111\u1eb7c bi\u1ec7t v\u1edbi d\u1ef1 \u00e1n l\u1eb7p module.<br \/>\n&#8211; Mua cu\u1ed9n x\u1ebb (slit coil) cho s\u1ea3n ph\u1ea9m g\u1ea5p m\u00e9p\/\u0111\u1ecbnh h\u00ecnh, ti\u1ebft ki\u1ec7m h\u01a1n mua t\u1ea5m c\u1eaft nh\u1ecf l\u1ebb.<br \/>\n&#8211; Gom \u0111\u01a1n h\u00e0ng theo l\u00f4 \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed v\u1eadn chuy\u1ec3n v\u00e0 chi\u1ebft kh\u1ea5u.<br \/>\n&#8211; Ch\u1ea5t l\u01b0\u1ee3ng \u2013 ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; T\u1ea5m\/l\u00e1: ASTM A240\/A480 ho\u1eb7c JIS G4304\/G4305; \u1ed0ng c\u01a1 kh\u00ed: ASTM A554; \u1ed0ng c\u00f4ng nghi\u1ec7p: ASTM A312; \u1ed0ng trao \u0111\u1ed5i nhi\u1ec7t: ASTM A269.<br \/>\n  &#8211; Y\u00eau c\u1ea7u MTC (Mill Test Certificate), ki\u1ec3m tra th\u00e0nh ph\u1ea7n Ni\/Cr\/Mn \u0111\u00fang m\u00e1c.<br \/>\n&#8211; Ki\u1ec3m tra nhanh t\u1ea1i x\u01b0\u1edfng\/c\u00f4ng tr\u01b0\u1eddng:<br \/>\n  &#8211; D\u00f9ng m\u00e1y PMI\/XRF khi c\u00f3; n\u1ebfu kh\u00f4ng, nh\u1edb r\u1eb1ng \u201cnam ch\u00e2m h\u00fat\u201d kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 304 vs 201 m\u1ed9t c\u00e1ch ch\u1eafc ch\u1eafn.<br \/>\n  &#8211; \u0110o \u0111\u1ed9 d\u00e0y b\u1eb1ng panme; c\u00e2n so kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ec3 suy lu\u1eadn m\u00e1c\/t\u1ed3n t\u1ea1i gian l\u1eadn \u0111\u1ed9 d\u00e0y.<br \/>\n  &#8211; Soi b\u1ec1 m\u1eb7t, \u0111\u01b0\u1eddng h\u00e0n; ki\u1ec3m burr\/phoi \u0111\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng chi ph\u00ed ho\u00e0n thi\u1ec7n.<\/p>\n<p>Ngu\u1ed3n: ASTM A240\/A480\/A554\/A312\/A269; Nickel Institute \u2013 Stainless Steel Fact Book.<\/p>\n<h2 id=\"toc-6-bao-tri-chi-phi-thap-nhung-hieu-qua-cao\">B\u1ea3o tr\u00ec chi ph\u00ed th\u1ea5p nh\u01b0ng hi\u1ec7u qu\u1ea3 cao<\/h2>\n<p>&#8211; L\u1ecbch v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng x\u00e0 ph\u00f2ng trung t\u00ednh, n\u01b0\u1edbc \u1ea5m; lau kh\u00f4 sau khi r\u1eeda.<br \/>\n&#8211; Tr\u00e1nh h\u00f3a ch\u1ea5t ch\u1ee9a chloride (NaClO, HCl\u2026); n\u1ebfu l\u1ee1 d\u00f9ng, r\u1eeda s\u1ea1ch ngay b\u1eb1ng n\u01b0\u1edbc ng\u1ecdt.<br \/>\n&#8211; T\u1ea1i v\u00f9ng ven bi\u1ec3n: x\u1ecbt r\u1eeda n\u01b0\u1edbc ng\u1ecdt h\u00e0ng tu\u1ea7n cho b\u1ec1 m\u1eb7t 304; h\u00e0ng th\u00e1ng cho 316.<br \/>\n&#8211; \u0110\u1ecbnh k\u1ef3 passivation nh\u1eb9 (axit citric) sau 6\u201312 th\u00e1ng cho khu v\u1ef1c kh\u1eafc nghi\u1ec7t; b\u00f4i s\u00e1p b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t trang tr\u00ed.<br \/>\n&#8211; Thi\u1ebft k\u1ebf v\u00e0 b\u1ea3o tr\u00ec khe h\u1edf: b\u1ecbt m\u00e9p, khoan l\u1ed7 tho\u00e1t n\u01b0\u1edbc \u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n k\u1ebd.<\/p>\n<p>Ngu\u1ed3n: Euro Inox \u2013 Care and Maintenance of Stainless Steel; Nickel Institute \u2013 Cleaning and maintenance.<\/p>\n<h2 id=\"toc-7-vi-du-toi-uu-chi-phi-thuc-te-ung-dung\">V\u00ed d\u1ee5 t\u1ed1i \u01b0u chi ph\u00ed (th\u1ef1c t\u1ebf \u1ee9ng d\u1ee5ng)<\/h2>\n<p>&#8211; Lan can chung c\u01b0 n\u1ed9i \u0111\u00f4:<br \/>\n  &#8211; Gi\u1ea3i ph\u00e1p: \u1ed0ng 201 \u00d838, d\u00e0y 1,0 mm; tr\u1ee5 ch\u00ednh 304 d\u00e0y 1,2 mm; b\u1ec1 m\u1eb7t Hairline.<br \/>\n  &#8211; K\u1ebft qu\u1ea3: ti\u1ebft ki\u1ec7m ~18\u201322% so v\u1edbi to\u00e0n b\u1ed9 304 1,2 mm; y\u00eau c\u1ea7u v\u1ec7 sinh h\u00e0ng th\u00e1ng.<br \/>\n&#8211; B\u1ebfp c\u00f4ng nghi\u1ec7p H\u00e0 N\u1ed9i:<br \/>\n  &#8211; Gi\u1ea3i ph\u00e1p: M\u1eb7t b\u00e0n 304 1,2 mm 2B (d\u00e1n PVC), khung d\u01b0\u1edbi 201 1,0 mm; MIG xung gi\u1ea3m th\u1eddi gian h\u00e0n 30%.<br \/>\n  &#8211; K\u1ebft qu\u1ea3: ti\u1ebft ki\u1ec7m ~15\u201320%, b\u1ec1 m\u1eb7t b\u1ec1n, d\u1ec5 v\u1ec7 sinh.<br \/>\n&#8211; V\u1ecf m\u00e1y, t\u1ee7 \u0111i\u1ec7n trong x\u01b0\u1edfng kh\u00f4:<br \/>\n  &#8211; Gi\u1ea3i ph\u00e1p: Panel 430 0,8\u20130,9 mm + g\u00e2n d\u1eadp; kh\u00f3a\/b\u1ea3n l\u1ec1 304; Hairline ngo\u00e0i, 2B trong.<br \/>\n  &#8211; K\u1ebft qu\u1ea3: ti\u1ebft ki\u1ec7m ~12\u201318% so v\u1edbi 304 \u0111\u1ed3ng nh\u1ea5t, kh\u00f4ng ph\u00e1t sinh g\u1ec9 \u1edf m\u00f4i tr\u01b0\u1eddng kh\u00f4.<\/p>\n<h2 id=\"toc-8-checklist-nhanh-cho-du-an-ngan-sach-thap\">Checklist nhanh cho d\u1ef1 \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p<\/h2>\n<p>&#8211; X\u00e1c \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng: kh\u00f4 \u2013 \u1ea9m \u2013 chloride \u2013 ven bi\u1ec3n \u2013 th\u1ef1c ph\u1ea9m.<br \/>\n&#8211; Ch\u1ecdn m\u00e1c \u201c\u0111\u1ee7 d\u00f9ng\u201d: 201\/430 (trong nh\u00e0), 304 (ngo\u00e0i tr\u1eddi n\u1ed9i \u0111\u1ecba), 316 (ven bi\u1ec3n\/h\u1ed3 b\u01a1i).<br \/>\n&#8211; Ch\u1ecdn b\u1ec1 m\u1eb7t: \u01b0u ti\u00ean 2B\/Hairline; tr\u00e1nh g\u01b0\u01a1ng n\u1ebfu kh\u00f4ng th\u1eadt s\u1ef1 c\u1ea7n.<br \/>\n&#8211; T\u1ed1i \u01b0u \u0111\u1ed9 d\u00e0y v\u00e0 g\u00e2n t\u0103ng c\u1ee9ng thay v\u00ec \u201c\u0111\u1ed5 d\u00e0y\u201d.<br \/>\n&#8211; Quy tr\u00ecnh gia c\u00f4ng: TIG\/MIG xung ph\u00f9 h\u1ee3p; ch\u1ecdn v\u1eadt li\u1ec7u \u0111i\u1ec1n \u0111\u00fang m\u00e1c; b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t b\u1eb1ng phim PVC.<br \/>\n&#8211; Thi\u1ebft k\u1ebf theo k\u00edch th\u01b0\u1edbc chu\u1ea9n; \u0111\u1eb7t h\u00e0ng c\u1eaft theo kh\u1ed5\/chi\u1ec1u d\u00e0i \u0111\u1ec3 gi\u1ea3m ph\u1ebf.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng: y\u00eau c\u1ea7u MTC; \u0111o \u0111\u1ed9 d\u00e0y; PMI khi c\u00f3 th\u1ec3.<br \/>\n&#8211; L\u1eadp k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3, \u0111\u1eb7c bi\u1ec7t \u1edf m\u00f4i tr\u01b0\u1eddng chloride.<\/p>\n<p>K\u1ebft lu\u1eadn<br \/>\nT\u1ed1i \u01b0u chi ph\u00ed v\u1edbi Inox kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi th\u1ecfa hi\u1ec7p ch\u1ea5t l\u01b0\u1ee3ng. Khi \u0111\u1ecbnh ngh\u0129a \u0111\u00fang m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng, ch\u1ecdn m\u00e1c h\u1ee3p l\u00fd (201\/430\/304\/316), ki\u1ec3m so\u00e1t b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 d\u00e0y, ti\u00eau chu\u1ea9n h\u00f3a k\u00edch th\u01b0\u1edbc v\u00e0 quy tr\u00ecnh gia c\u00f4ng, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m 10\u201330% chi ph\u00ed d\u1ef1 \u00e1n m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd v\u00e0 th\u1ea9m m\u1ef9. \u00c1p d\u1ee5ng c\u00e1c m\u1eb9o mua h\u00e0ng v\u00e0 b\u1ea3o tr\u00ec n\u00eau tr\u00ean s\u1ebd gi\u00fap d\u1ef1 \u00e1n ng\u00e2n s\u00e1ch th\u1ea5p v\u1eadn h\u00e0nh b\u1ec1n b\u1ec9, gi\u1ea3m r\u1ee7i ro ph\u00e1t sinh chi ph\u00ed sau n\u00e0y.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o ch\u1ecdn l\u1ecdc:<br \/>\n&#8211; ASTM A240\/A480 (t\u1ea5m, l\u00e1 Inox), ASTM A554 (\u1ed1ng c\u01a1 kh\u00ed), ASTM A312\/A269 (\u1ed1ng c\u00f4ng nghi\u1ec7p)<br \/>\n&#8211; Nickel Institute: Selection, Fabrication and Maintenance of Stainless Steels (nickelinstitute.org)<br \/>\n&#8211; Outokumpu Corrosion Handbook; Euro Inox \u2013 Care and Maintenance of Stainless Steel<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n chi ti\u1ebft theo b\u1ea3n v\u1ebd v\u00e0 m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb t\u1ed1i \u01b0u v\u00e0 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 ch\u1ecdn m\u00e1c, b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y, gia c\u00f4ng v\u00e0 thu mua Inox \u0111\u1ec3 gi\u1ea3m 10\u201330% chi ph\u00ed m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n cho lan can, b\u1ebfp, khung m\u00e1y.<\/p>\n","protected":false},"author":7,"featured_media":1014,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2048","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\/2048","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=2048"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2048\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1014"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}