{"id":2148,"date":"2026-06-16T12:33:40","date_gmt":"2026-06-16T05:33:40","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/lam-cong-inox-toi-uu-chon-mac-mau-ma-quy-cach-chi-phi\/"},"modified":"2026-06-16T12:33:40","modified_gmt":"2026-06-16T05:33:40","slug":"lam-cong-inox-toi-uu-chon-mac-mau-ma-quy-cach-chi-phi","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/lam-cong-inox-toi-uu-chon-mac-mau-ma-quy-cach-chi-phi\/","title":{"rendered":"L\u00e0m c\u1ed5ng inox t\u1ed1i \u01b0u: ch\u1ecdn m\u00e1c, m\u1eabu m\u00e3, quy c\u00e1ch &#038; chi ph\u00ed"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-vi-sao-chon-inox-cho-cong-ngoai-troi\">V\u00ec sao ch\u1ecdn inox cho c\u1ed5ng ngo\u00e0i tr\u1eddi?<\/a><\/li>\n<li><a href=\"#toc-1-lua-chon-vat-tu-inox-mac-thep-quy-cach-va-phu-kien\">L\u1ef1a ch\u1ecdn v\u1eadt t\u01b0 inox: m\u00e1c th\u00e9p, quy c\u00e1ch v\u00e0 ph\u1ee5 ki\u1ec7n<\/a><\/li>\n<li><a href=\"#toc-2-thiet-ke-va-mau-ma-dep-cung-vung-va-tien-dung\">Thi\u1ebft k\u1ebf v\u00e0 m\u1eabu m\u00e3: \u0111\u1eb9p, c\u1ee9ng v\u1eefng v\u00e0 ti\u1ec7n d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-3-an-toan-ket-cau-va-tai-gio-tham-khao-nhanh\">An to\u00e0n k\u1ebft c\u1ea5u v\u00e0 t\u1ea3i gi\u00f3 (tham kh\u1ea3o nhanh)<\/a><\/li>\n<li><a href=\"#toc-4-quy-trinh-thi-cong-chuan\">Quy tr\u00ecnh thi c\u00f4ng chu\u1ea9n<\/a><\/li>\n<li><a href=\"#toc-5-du-toan-chi-phi-cong-thuc-vi-du-va-don-gia-tham-ch\">D\u1ef1 to\u00e1n chi ph\u00ed: c\u00f4ng th\u1ee9c, v\u00ed d\u1ee5 v\u00e0 \u0111\u01a1n gi\u00e1 tham chi\u1ebfu<\/a><\/li>\n<li><a href=\"#toc-6-bao-tri-va-tuoi-tho\">B\u1ea3o tr\u00ec v\u00e0 tu\u1ed5i th\u1ecd<\/a><\/li>\n<li><a href=\"#toc-7-checklist-dat-hang-va-nghiem-thu\">Checklist \u0111\u1eb7t h\u00e0ng v\u00e0 nghi\u1ec7m thu<\/a><\/li>\n<li><a href=\"#toc-8-loi-thuong-gap-va-cach-tranh\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/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>C\u1ed5ng inox l\u00e0 h\u1ea1ng m\u1ee5c quan tr\u1ecdng trong x\u00e2y d\u1ef1ng d\u00e2n d\u1ee5ng v\u00e0 k\u1ebft c\u1ea5u c\u00f4ng tr\u00ecnh, n\u01a1i y\u00eau c\u1ea7u \u0111\u1ed3ng th\u1eddi \u0111\u1ed9 b\u1ec1n th\u1eddi ti\u1ebft, an to\u00e0n, th\u1ea9m m\u1ef9 v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p. B\u00e0i vi\u1ebft n\u00e0y t\u1ed5ng h\u1ee3p t\u1ea5t t\u1ea7n t\u1eadt v\u1ec1 l\u00e0m c\u1ed5ng inox: t\u1eeb ch\u1ecdn m\u00e1c th\u00e9p, quy c\u00e1ch v\u1eadt t\u01b0, ki\u1ec3u d\u00e1ng, k\u1ef9 thu\u1eadt thi c\u00f4ng \u0111\u1ebfn b\u00f3c t\u00e1ch chi ph\u00ed v\u00e0 d\u1ef1 to\u00e1n th\u1ef1c t\u1ebf cho \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu, m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng t\u1ea1i Vi\u1ec7t Nam (\u0111\u1eb7c bi\u1ec7t khu v\u1ef1c H\u00e0 N\u1ed9i).<\/p>\n<h2 id=\"toc-0-vi-sao-chon-inox-cho-cong-ngoai-troi\">V\u00ec sao ch\u1ecdn inox cho c\u1ed5ng ngo\u00e0i tr\u1eddi?<\/h2>\n<p>&#8211; B\u1ec1n \u0103n m\u00f2n v\u00e0 b\u1ec1n m\u00e0u: \u00edt ph\u1ea3i s\u01a1n, kh\u00f4ng bong tr\u00f3c nh\u01b0 th\u00e9p carbon s\u01a1n, h\u1ea1n ch\u1ebf \u201c\u1ed1 tr\u00e0\u201d khi v\u1ec7 sinh \u0111\u00fang c\u00e1ch.<br \/>\n&#8211; C\u1ee9ng v\u1eefng, an to\u00e0n: \u1ed1ng h\u1ed9p inox c\u00f3 m\u00f4-\u0111un \u0111\u00e0n h\u1ed3i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng th\u00e9p carbon (~200 GPa), \u0111\u1ee7 cho nh\u1ecbp c\u00e1nh l\u1edbn n\u1ebfu ch\u1ecdn \u0111\u00fang quy c\u00e1ch.<br \/>\n&#8211; Th\u1ea9m m\u1ef9 cao: nhi\u1ec1u b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n (HL, No.4, g\u01b0\u01a1ng, PVD m\u00e0u).<br \/>\n&#8211; Chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p: \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n s\u1eaft s\u01a1n, nh\u01b0ng b\u1ea3o tr\u00ec th\u1ea5p, tu\u1ed5i th\u1ecd d\u00e0i.<\/p>\n<p>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd: gi\u00e1 v\u1eadt t\u01b0 cao h\u01a1n, y\u00eau c\u1ea7u tay ngh\u1ec1 h\u00e0n v\u00e0 x\u1eed l\u00fd m\u1ed1i h\u00e0n chu\u1ea9n inox; l\u1ef1a ch\u1ecdn m\u00e1c th\u00e9p sai m\u00f4i tr\u01b0\u1eddng c\u00f3 th\u1ec3 g\u00e2y \u1ed1, r\u1ec9 t\u1ea1i m\u1ed1i h\u00e0n.<\/p>\n<h2 id=\"toc-1-lua-chon-vat-tu-inox-mac-thep-quy-cach-va-phu-kien\">L\u1ef1a ch\u1ecdn v\u1eadt t\u01b0 inox: m\u00e1c th\u00e9p, quy c\u00e1ch v\u00e0 ph\u1ee5 ki\u1ec7n<\/h2>\n<h3>Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng<\/h3>\n<p>&#8211; Inox 201 (Cr\u2013Mn\u2013Ni th\u1ea5p): ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i, ph\u00f9 h\u1ee3p n\u1ed9i \u0111\u00f4, n\u00f4ng th\u00f4n xa bi\u1ec3n v\u00e0 xa ngu\u1ed3n clo, axit; c\u00e2n \u0111\u1ed1i chi ph\u00ed.<br \/>\n&#8211; Inox 304\/304L (18Cr\u20138Ni): ti\u00eau chu\u1ea9n cho c\u1ed5ng ngo\u00e0i tr\u1eddi t\u1ea1i H\u00e0 N\u1ed9i; ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, d\u1ec5 gia c\u00f4ng, \u1ed5n \u0111\u1ecbnh b\u1ec1 m\u1eb7t.<br \/>\n&#8211; Inox 316\/316L (Mo 2\u20132.5%): kh\u00e1ng clorua v\u01b0\u1ee3t tr\u1ed9i; d\u00f9ng cho ven bi\u1ec3n, m\u00f4i tr\u01b0\u1eddng c\u00f3 mu\u1ed1i\/ch\u1ea5t t\u1ea9y clo, khu h\u1ed3 b\u01a1i, khu c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t nh\u1eb9.<br \/>\n&#8211; Inox 430 (ferritic, t\u1eeb t\u00ednh): kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho ngo\u00e0i tr\u1eddi do ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n; ch\u1ec9 n\u00ean d\u00f9ng n\u1ed9i th\u1ea5t\/kh\u00f4 r\u00e1o.<\/p>\n<p>L\u01b0u \u00fd ki\u1ec3m tra: nam ch\u00e2m ch\u1ec9 mang t\u00ednh tham kh\u1ea3o (304 c\u00f3 th\u1ec3 h\u01a1i nhi\u1ec5m t\u1eeb sau gia c\u00f4ng). H\u00e3y y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u\/m\u00e1c m\u00e1c in\/tem nh\u00e0 m\u00e1y.<\/p>\n<p>Tham kh\u1ea3o: Nickel Institute, ASSDA, Outokumpu\/Atlas datasheets khuy\u1ebfn ngh\u1ecb 304\/316 cho m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi v\u00e0 316L cho v\u00f9ng chloride cao.<\/p>\n<h3>Quy c\u00e1ch \u1ed1ng h\u1ed9p\/t\u1ea5m khuy\u1ebfn ngh\u1ecb cho c\u1ed5ng<\/h3>\n<p>&#8211; Khung vi\u1ec1n ch\u00ednh (perimeter):<br \/>\n  &#8211; H\u1ed9p 50\u00d7100\u00d71.2\u20131.5 mm (nh\u1ecbp c\u00e1nh \u0111\u1ebfn ~1.6 m);<br \/>\n  &#8211; H\u1ed9p 60\u00d7120\u00d71.5\u20132.0 mm (nh\u1ecbp 1.8\u20132.2 m ho\u1eb7c c\u00e1nh n\u1eb7ng).<br \/>\n&#8211; X\u01b0\u01a1ng t\u0103ng c\u1ee9ng\/c\u1ed9t gi\u1eefa c\u00e1nh: 40\u00d780\u00d71.2\u20131.5 mm.<br \/>\n&#8211; Nan\/\u0111\u1ed1 trang tr\u00ed: 20\u00d720\u00d71.0\u20131.2 mm, 13\u00d726\u00d70.8\u20131.0 mm; thanh b\u1ea3n (flat bar) 10\u00d730\u00d71.5 mm.<br \/>\n&#8211; C\u1ed9t tr\u1ee5: 80\u00d780\u00d72.0\u20133.0 mm ho\u1eb7c 100\u00d7100\u00d72.0\u20133.0 mm, \u0111\u1ed5 m\u00f3ng \u0111\u1ed9c l\u1eadp.<br \/>\n&#8211; T\u1ea5m \u1ed1p\/hoa v\u0103n: t\u1ea5m 1.0\u20132.0 mm (ASTM A240), c\u1eaft laser\/CNC.<br \/>\n&#8211; \u1ed0ng, h\u1ed9p trang tr\u00ed ti\u00eau chu\u1ea9n ASTM A554; \u1ed1ng \u0111\u00fac \u00e1p l\u1ef1c (ASTM A312) \u00edt d\u00f9ng cho c\u1ed5ng d\u00e2n d\u1ee5ng do th\u1eeba t\u00ednh n\u0103ng.<br \/>\n&#8211; B\u1ecbt \u0111\u1ea7u \u1ed1ng, l\u1ed7 tho\u00e1t n\u01b0\u1edbc ch\u1ed1ng \u0111\u1ecdng \u1ea9m b\u00ean trong.<\/p>\n<h3>Ph\u1ee5 ki\u1ec7n, b\u1ea3n l\u1ec1 v\u00e0 bul\u00f4ng<\/h3>\n<p>&#8211; B\u1ea3n l\u1ec1 inox 304\/316 b\u1ea3n l\u1edbn (h\u00e0n), ho\u1eb7c b\u1ea3n l\u1ec1 bi ch\u1ecbu t\u1ea3i; ch\u1ed1t \u00e2m\/kh\u00f3a tay inox 304.<br \/>\n&#8211; C\u1ed5ng tr\u01b0\u1ee3t: ray U inox 304 d\u00e0y \u22653 mm, b\u00e1nh xe bi inox\/PU, ch\u1eb7n h\u00e0nh tr\u00ecnh.<br \/>\n&#8211; Bul\u00f4ng \u0111ai \u1ed1c: A2-70 (304) cho n\u1ed9i \u0111\u00f4; A4-70 (316) cho v\u00f9ng chloride.<br \/>\n&#8211; Motor c\u1ed5ng t\u1ef1 \u0111\u1ed9ng: ch\u1ecdn theo t\u1ea3i tr\u1ecdng v\u00e0 t\u1ea7n su\u1ea5t (residential\/commercial).<\/p>\n<h3>H\u00e0n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u00fang chu\u1ea9n<\/h3>\n<p>&#8211; H\u00e0n:<br \/>\n  &#8211; TIG (GTAW) cho m\u1ed1i h\u00e0n s\u1ea1ch, \u00edt b\u1eafn t\u00f3e; MIG (GMAW) cho t\u1ed1c \u0111\u1ed9 nhanh.<br \/>\n  &#8211; Que\/d\u00e2y h\u00e0n: ER308L (cho 304), ER316L (cho 316); kh\u00ed b\u1ea3o v\u1ec7 Ar 100% (TIG), ho\u1eb7c Ar+He\/CO2 th\u1ea5p (MIG chuy\u00ean inox).<br \/>\n&#8211; X\u1eed l\u00fd sau h\u00e0n: m\u00e0i tinh, t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a (pickling &#038; passivation), r\u1eeda s\u1ea1ch v\u00e0 trung h\u00f2a; gi\u1ea3m nguy c\u01a1 \u1ed1 tr\u00e0 quanh m\u1ed1i h\u00e0n.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t:<br \/>\n  &#8211; No.2B (m\u1edd c\u00f4ng nghi\u1ec7p), No.4\/HL (x\u01b0\u1edbc t\u00f3c \u2013 ph\u1ed5 bi\u1ebfn cho c\u1ed5ng), No.8 (g\u01b0\u01a1ng), PVD m\u00e0u (v\u00e0ng, \u0111en, \u0111\u1ed3ng\u2026).<br \/>\n  &#8211; V\u1edbi HL\/No.4: \u0111\u00e1nh \u0111\u1ed3ng h\u01b0\u1edbng, tr\u00e1nh \u201cv\u00e1 l\u1ed7i\u201d loang l\u1ed5.<\/p>\n<h2 id=\"toc-2-thiet-ke-va-mau-ma-dep-cung-vung-va-tien-dung\">Thi\u1ebft k\u1ebf v\u00e0 m\u1eabu m\u00e3: \u0111\u1eb9p, c\u1ee9ng v\u1eefng v\u00e0 ti\u1ec7n d\u1ee5ng<\/h2>\n<h3>Ki\u1ec3u c\u1ed5ng ph\u1ed5 bi\u1ebfn<\/h3>\n<p>&#8211; C\u1ed5ng m\u1edf 2 c\u00e1nh (ph\u1ed5 bi\u1ebfn nh\u00e0 ph\u1ed1), 4 c\u00e1nh (m\u1eb7t ti\u1ec1n r\u1ed9ng nh\u01b0ng thi\u1ebfu chi\u1ec1u s\u00e2u quay m\u1edf).<br \/>\n&#8211; C\u1ed5ng tr\u01b0\u1ee3t m\u1ed9t\/bidirectional (ti\u1ebft ki\u1ec7m kh\u00f4ng gian tr\u01b0\u1edbc s\u00e2n).<br \/>\n&#8211; C\u1ed5ng x\u1ebfp\/g\u1ea5p (\u00edt d\u00f9ng d\u00e2n d\u1ee5ng, ph\u00f9 h\u1ee3p nh\u00e0 x\u01b0\u1edfng).<br \/>\n&#8211; T\u1ef1 \u0111\u1ed9ng h\u00f3a: motor \u00e2m s\u00e0n, tay \u0111\u00f2n, tr\u01b0\u1ee3t \u2013 thi\u1ebft k\u1ebf ngay t\u1eeb \u0111\u1ea7u \u0111\u1ec3 gi\u1ea5u d\u00e2y, \u0111\u1ebf motor.<\/p>\n<h3>G\u1ee3i \u00fd c\u1ea5u h\u00ecnh theo k\u00edch th\u01b0\u1edbc nh\u00e0 \u1edf th\u01b0\u1eddng g\u1eb7p<\/h3>\n<p>&#8211; R\u1ed9ng c\u1ed5ng 2.8\u20134.0 m; cao 1.6\u20132.2 m.<br \/>\n&#8211; V\u1edbi c\u00e1nh \u22641.6 m: khung 50\u00d7100\u00d71.5 mm + x\u01b0\u01a1ng 40\u00d780\u00d71.2 mm + nan 20\u00d720\u00d71.0 mm; b\u1ea3n l\u1ec1 bi \u0111\u00f4i.<br \/>\n&#8211; V\u1edbi c\u00e1nh >1.8 m ho\u1eb7c \u1ed1p t\u1ea5m d\u00e0y: n\u00e2ng l\u00ean 60\u00d7120\u00d71.5\u20132.0 mm; b\u1ed5 sung g\u00e2n ch\u00e9o\/t\u0103ng c\u1ee9ng ngang.<br \/>\n&#8211; C\u1ed5ng tr\u01b0\u1ee3t: ray d\u01b0\u1edbi, d\u1ea7m \u0111\u1ee1 c\u00e1nh 60\u00d7120\u00d72.0 mm, b\u00e1nh xe bi \u0111\u00f4i; \u0111\u1ea3m b\u1ea3o m\u00f3ng ray b\u00ea t\u00f4ng m\u00e1c \u2265200, ch\u1ed1ng l\u00fan.<\/p>\n<h3>M\u1eb9o thi\u1ebft k\u1ebf b\u1ec1n v\u00e0 s\u1ea1ch<\/h3>\n<p>&#8211; B\u1ecbt k\u00edn \u0111\u1ea7u \u1ed1ng, khoan l\u1ed7 tho\u00e1t n\u01b0\u1edbc khu\u1ea5t \u0111\u00e1y \u1ed1ng \u0111\u1ec3 tr\u00e1nh \u0111\u1ecdng \u1ea9m.<br \/>\n&#8211; Tr\u00e1nh k\u1ebd h\u1edf b\u1eaby b\u1ee5i\/mu\u1ed1i; bo m\u00e9p t\u1ea5m c\u1eaft laser; d\u00f9ng keo trung t\u00ednh t\u1ea1i giao di\u1ec7n k\u00ednh\u2013inox.<br \/>\n&#8211; Ke tr\u00e1nh x\u01b0\u1edbc: gia c\u00f4ng, v\u1eadn chuy\u1ec3n s\u1eed d\u1ee5ng m\u00e0ng b\u1ea3o v\u1ec7; b\u00f3c m\u00e0ng sau l\u1eafp \u0111\u1eb7t v\u00e0 v\u1ec7 sinh ho\u00e0n thi\u1ec7n.<br \/>\n&#8211; H\u00ecnh h\u1ecdc nan: nan ngang d\u00e0y \u1edf d\u01b0\u1edbi, th\u01b0a d\u1ea7n l\u00ean tr\u00ean \u0111\u1ec3 gi\u1ea3m t\u1ea3i gi\u00f3 v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng.<\/p>\n<h2 id=\"toc-3-an-toan-ket-cau-va-tai-gio-tham-khao-nhanh\">An to\u00e0n k\u1ebft c\u1ea5u v\u00e0 t\u1ea3i gi\u00f3 (tham kh\u1ea3o nhanh)<\/h2>\n<p>&#8211; N\u1ed9i \u0111\u00f4 H\u00e0 N\u1ed9i: gi\u00f3 m\u1ea1nh theo ti\u00eau chu\u1ea9n Vi\u1ec7t Nam th\u01b0\u1eddng quy \u0111\u1ed5i v\u1eadn t\u1ed1c c\u01a1 b\u1ea3n ~30\u201335 m\/s.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb th\u1ef1c h\u00e0nh:<br \/>\n  &#8211; C\u00e1nh \u22641.6 m: h\u1ed9p khung 1.5 mm;<br \/>\n  &#8211; 1.6\u20132.0 m: khung 1.5\u20132.0 mm, b\u1ed5 sung x\u01b0\u01a1ng gi\u1eefa;<br \/>\n  &#8211; >2.0 m ho\u1eb7c c\u00f3 \u1ed1p t\u1ea5m k\u00edn: khung 2.0 mm, t\u0103ng g\u00e2n ch\u00e9o;<br \/>\n  &#8211; C\u1ed9t tr\u1ee5 ch\u00f4n m\u00f3ng ri\u00eang, bu l\u00f4ng neo \u2265M12, chi\u1ec1u s\u00e2u m\u00f3ng t\u00f9y n\u1ec1n (th\u01b0\u1eddng 600\u2013800 mm cho d\u00e2n d\u1ee5ng).<br \/>\n&#8211; V\u1edbi khu v\u1ef1c gi\u00f3 m\u1ea1nh\/ven bi\u1ec3n\/h\u1ea7m gi\u00f3: c\u1ea7n t\u00ednh chi ti\u1ebft theo ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh v\u00e0 kh\u1ea3o s\u00e1t n\u1ec1n m\u00f3ng.<\/p>\n<h2 id=\"toc-4-quy-trinh-thi-cong-chuan\">Quy tr\u00ecnh thi c\u00f4ng chu\u1ea9n<\/h2>\n<p>1) Kh\u1ea3o s\u00e1t \u2013 \u0111o \u0111\u1ea1c \u2013 ch\u1ee5p \u1ea3nh hi\u1ec7n tr\u1ea1ng, ki\u1ec3m tra tim tr\u1ee5, \u0111\u1ed9 d\u1ed1c n\u1ec1n, c\u1ea5p \u0111i\u1ec7n.<br \/>\n2) Thi\u1ebft k\u1ebf \u2013 shop drawing: m\u1eb7t b\u1eb1ng, m\u1eb7t \u0111\u1ee9ng, chi ti\u1ebft m\u1ed1i n\u1ed1i, quy c\u00e1ch inox, b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n, ph\u1ee5 ki\u1ec7n.<br \/>\n3) Gia c\u00f4ng: c\u1eaft, \u0111\u1ed9t, u\u1ed1n; g\u00e1 l\u1eafp; h\u00e0n TIG\/MIG; ki\u1ec3m tra k\u00edch th\u01b0\u1edbc\u2013\u0111\u1ed9 v\u1ed3ng; m\u00e0i\u2013t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a; \u0111\u00e1nh x\u01b0\u1edbc HL\/No.4 theo y\u00eau c\u1ea7u.<br \/>\n4) L\u1eafp d\u1ef1ng: c\u1ea9u\/\u0111\u1ee1 c\u00e1nh; c\u00e2n ch\u1ec9nh khe h\u1edf 3\u20135 mm; h\u00e0n b\u1ea3n l\u1ec1\/c\u1eef; l\u1eafp kh\u00f3a\u2013tay n\u1eafm\u2013ch\u1eb7n c\u1eeda; si\u1ebft bul\u00f4ng m\u00f4-men \u0111\u00fang.<br \/>\n5) Ho\u00e0n thi\u1ec7n: v\u1ec7 sinh b\u1eb1ng dung d\u1ecbch pH trung t\u00ednh; ki\u1ec3m th\u1eed \u0111\u00f3ng m\u1edf 200\u2013300 chu k\u1ef3; b\u00e0n giao k\u00e8m h\u01b0\u1edbng d\u1eabn b\u1ea3o tr\u00ec.<\/p>\n<h2 id=\"toc-5-du-toan-chi-phi-cong-thuc-vi-du-va-don-gia-tham-ch\">D\u1ef1 to\u00e1n chi ph\u00ed: c\u00f4ng th\u1ee9c, v\u00ed d\u1ee5 v\u00e0 \u0111\u01a1n gi\u00e1 tham chi\u1ebfu<\/h2>\n<h3>C\u1ea5u ph\u1ea7n chi ph\u00ed<\/h3>\n<p>&#8211; V\u1eadt t\u01b0 inox (\u1ed1ng h\u1ed9p\/t\u1ea5m, ph\u1ee5 ki\u1ec7n, b\u1ea3n l\u1ec1, bul\u00f4ng) \u2013 chi\u1ebfm 50\u201365%.<br \/>\n&#8211; Nh\u00e2n c\u00f4ng gia c\u00f4ng\u2013l\u1eafp \u0111\u1eb7t v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u2013 20\u201335%.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n \u0111\u1eb7c bi\u1ec7t (PVD m\u00e0u, No.8), t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a \u2013 5\u201310%.<br \/>\n&#8211; V\u1eadn chuy\u1ec3n, c\u1ea9u, ph\u00e1t sinh n\u1ec1n m\u00f3ng\/ray \u2013 5\u201315%.<br \/>\n&#8211; T\u1ef1 \u0111\u1ed9ng h\u00f3a (n\u1ebfu c\u00f3): motor, \u0111i\u1ec1u khi\u1ec3n, an to\u00e0n quang \u2013 t\u00ednh ri\u00eang.<\/p>\n<h3>\u0110\u01a1n gi\u00e1 inox tham chi\u1ebfu (H\u00e0 N\u1ed9i, Q2\/2026)<\/h3>\n<p>&#8211; \u1ed0ng\/h\u1ed9p inox 201: kho\u1ea3ng 35.000\u201348.000 \u0111\/kg t\u00f9y quy c\u00e1ch.<br \/>\n&#8211; \u1ed0ng\/h\u1ed9p inox 304: kho\u1ea3ng 78.000\u201395.000 \u0111\/kg; t\u1ea5m 1.0\u20132.0 mm cao h\u01a1n.<br \/>\n&#8211; \u1ed0ng\/h\u1ed9p inox 316L: kho\u1ea3ng 115.000\u2013145.000 \u0111\/kg.<br \/>\n&#8211; B\u1ea3n l\u1ec1 304 b\u1ea3n l\u1edbn: 250.000\u2013600.000 \u0111\/c\u00e1i; kh\u00f3a tay 304: 450.000\u20131.200.000 \u0111\/b\u1ed9.<br \/>\nL\u01b0u \u00fd: gi\u00e1 bi\u1ebfn \u0111\u1ed9ng theo nh\u00e0 m\u00e1y (Posco, H\u00f2a B\u00ecnh Inox, Tisco, nh\u1eadp kh\u1ea9u), \u0111\u1ed9 d\u00e0y, b\u1ec1 m\u1eb7t v\u00e0 s\u1ed1 l\u01b0\u1ee3ng.<\/p>\n<h3>V\u00ed d\u1ee5 b\u00f3c t\u00e1ch cho c\u1ed5ng 2 c\u00e1nh 3.2 m \u00d7 1.9 m (inox 304, HL)<\/h3>\n<p>&#8211; Khung m\u1ed7i c\u00e1nh 50\u00d7100\u00d71.5 mm, x\u01b0\u01a1ng 40\u00d780\u00d71.2 mm, nan 20\u00d720\u00d71.0 mm; 2 b\u1ea3n l\u1ec1 bi\/c\u00e1nh; kh\u00f3a tay 304.<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng \u01b0\u1edbc t\u00ednh: ~95\u2013105 kg inox (bao g\u1ed3m hao h\u1ee5t).<br \/>\n&#8211; V\u1eadt t\u01b0 inox: ~8.0\u20139.5 tri\u1ec7u \u0111.<br \/>\n&#8211; Ph\u1ee5 ki\u1ec7n: ~1.2\u20132.0 tri\u1ec7u \u0111.<br \/>\n&#8211; Gia c\u00f4ng\u2013l\u1eafp \u0111\u1eb7t\u2013x\u1eed l\u00fd b\u1ec1 m\u1eb7t: ~4.5\u20137.0 tri\u1ec7u \u0111.<br \/>\n&#8211; T\u1ed5ng d\u1ef1 ki\u1ebfn: 13\u201319 tri\u1ec7u \u0111 (ch\u01b0a VAT, ch\u01b0a m\u00f3ng\/c\u1ea3i t\u1ea1o).<br \/>\n&#8211; Th\u00eam motor tay \u0111\u00f2n d\u00e2n d\u1ee5ng: +10\u201318 tri\u1ec7u \u0111\/b\u1ed9 (t\u00f9y h\u00e3ng\u2013t\u1ea3i tr\u1ecdng).<\/p>\n<h3>\u0110\u01a1n gi\u00e1 theo m2 tham kh\u1ea3o cho c\u1ed5ng ho\u00e0n thi\u1ec7n (kh\u00f4ng motor)<\/h3>\n<p>&#8211; Inox 201: kho\u1ea3ng 1.6\u20132.5 tri\u1ec7u \u0111\/m2 (m\u1eabu nan c\u01a1 b\u1ea3n).<br \/>\n&#8211; Inox 304: kho\u1ea3ng 2.3\u20133.8 tri\u1ec7u \u0111\/m2.<br \/>\n&#8211; Inox 316L: kho\u1ea3ng 3.8\u20136.0 tri\u1ec7u \u0111\/m2.<br \/>\n&#8211; \u1ed0p t\u1ea5m k\u00edn\/hoa v\u0103n laser\/PVD: c\u1ed9ng th\u00eam 15\u201350% t\u00f9y \u0111\u1ed9 ph\u1ee9c t\u1ea1p.<\/p>\n<h3>M\u1eb9o t\u1ed1i \u01b0u chi ph\u00ed m\u00e0 v\u1eabn b\u1ec1n<\/h3>\n<p>&#8211; D\u00f9ng 304 cho khung\u2013x\u01b0\u01a1ng, v\u00e0 201 cho nan \u00edt ph\u01a1i m\u01b0a n\u1eafng (n\u1ebfu m\u00f4i tr\u01b0\u1eddng s\u1ea1ch), ho\u1eb7c d\u00f9ng 304 to\u00e0n b\u1ed9 cho ngo\u00e0i tr\u1eddi \u0111\u1ec3 an t\u00e2m.<br \/>\n&#8211; T\u1eadp trung t\u0103ng \u0111\u1ed9 d\u00e0y \u1edf khung, ti\u1ebft gi\u1ea3m \u1edf nan; thi\u1ebft k\u1ebf \u00edt m\u1ed1i n\u1ed1i h\u00e0n h\u1edf.<br \/>\n&#8211; Thi\u1ebft k\u1ebf theo quy c\u00e1ch \u1ed1ng\/t\u1ea5m s\u1eb5n c\u00f3 \u0111\u1ec3 gi\u1ea3m hao h\u1ee5t v\u00e0 th\u1eddi gian gia c\u00f4ng.<br \/>\n&#8211; Ch\u1ecdn b\u1ec1 m\u1eb7t HL\/No.4 thay No.8 ho\u1eb7c PVD n\u1ebfu ng\u00e2n s\u00e1ch h\u1ea1n ch\u1ebf.<\/p>\n<h2 id=\"toc-6-bao-tri-va-tuoi-tho\">B\u1ea3o tr\u00ec v\u00e0 tu\u1ed5i th\u1ecd<\/h2>\n<p>&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 1\u20133 th\u00e1ng\/l\u1ea7n b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch v\u00e0 dung d\u1ecbch pH trung t\u00ednh; tr\u00e1nh ch\u1ea5t t\u1ea9y ch\u1ee9a clo\/hypochlorite; r\u1eeda ngay n\u1ebfu b\u00e1m mu\u1ed1i\/x\u1ecbt n\u01b0\u1edbc bi\u1ec3n.<br \/>\n&#8211; Ki\u1ec3m tra m\u1ed1i h\u00e0n, b\u1ea3n l\u1ec1, bul\u00f4ng 6\u201312 th\u00e1ng\/l\u1ea7n; b\u00f4i tr\u01a1n b\u1ea3n l\u1ec1 kh\u00f4ng d\u00f9ng d\u1ea7u c\u00f3 clo.<br \/>\n&#8211; Tea staining (\u1ed1 n\u00e2u nh\u1eb9) c\u00f3 th\u1ec3 x\u1eed l\u00fd b\u1eb1ng gel t\u1ea9y g\u1ec9 chuy\u00ean inox v\u00e0 t\u00e1i th\u1ee5 \u0111\u1ed9ng h\u00f3a.<br \/>\n&#8211; Tu\u1ed5i th\u1ecd: 304 ngo\u00e0i tr\u1eddi n\u1ed9i \u0111\u00f4 th\u01b0\u1eddng \u0111\u1ea1t 15\u201325 n\u0103m; 316L \u1edf v\u00f9ng chloride c\u00f3 th\u1ec3 cao h\u01a1n, t\u00f9y b\u1ea3o tr\u00ec.<\/p>\n<h2 id=\"toc-7-checklist-dat-hang-va-nghiem-thu\">Checklist \u0111\u1eb7t h\u00e0ng v\u00e0 nghi\u1ec7m thu<\/h2>\n<p>&#8211; X\u00e1c nh\u1eadn m\u00e1c inox v\u00e0 \u0111\u1ed9 d\u00e0y; \u0111o th\u1ef1c t\u1ebf b\u1eb1ng th\u01b0\u1edbc c\u1eb7p; y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 CO\/CQ.<br \/>\n&#8211; Ghi r\u00f5 ti\u00eau chu\u1ea9n v\u1eadt t\u01b0 (ASTM A554 cho \u1ed1ng\/h\u1ed9p, A240 cho t\u1ea5m), que h\u00e0n ER308L\/316L.<br \/>\n&#8211; Quy \u0111\u1ecbnh b\u1ec1 m\u1eb7t (HL\/No.4\/No.8\/PVD), h\u01b0\u1edbng x\u01b0\u1edbc, ph\u1ea1m vi m\u00e0i v\u00e0 x\u1eed l\u00fd th\u1ee5 \u0111\u1ed9ng h\u00f3a.<br \/>\n&#8211; B\u1ea3n v\u1ebd th\u1ec3 hi\u1ec7n khe h\u1edf, tho\u00e1t n\u01b0\u1edbc, b\u1ecbt \u0111\u1ea7u \u1ed1ng, v\u1ecb tr\u00ed ray\/b\u1ea3n l\u1ec1\/kh\u00f3a.<br \/>\n&#8211; Ki\u1ec3m tra v\u1eadn h\u00e0nh, \u0111\u1ed9 v\u00f5ng c\u00e1nh, \u0111\u1ed9 song ph\u1eb3ng, khe h\u1edf 3\u20135 mm \u0111\u1ed3ng \u0111\u1ec1u; bi\u00ean b\u1ea3n th\u1eed \u0111\u00f3ng m\u1edf.<\/p>\n<h2 id=\"toc-8-loi-thuong-gap-va-cach-tranh\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/h2>\n<p>&#8211; \u1ed0 tr\u00e0 quanh m\u1ed1i h\u00e0n: do kh\u00f4ng t\u1ea9y g\u1ec9\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a; kh\u1eafc ph\u1ee5c b\u1eb1ng quy tr\u00ecnh pickling\/passivation chu\u1ea9n.<br \/>\n&#8211; R\u1ec9 l\u1ea5m t\u1ea5m t\u1eeb bul\u00f4ng th\u00e9p \u0111en: b\u1eaft bu\u1ed9c d\u00f9ng bul\u00f4ng inox A2\/A4; c\u00e1ch ly th\u00e9p carbon khi g\u00e1 l\u1eafp.<br \/>\n&#8211; \u0110\u1ecdng n\u01b0\u1edbc trong \u1ed1ng g\u00e2y \u1ed1 v\u00e0 m\u00f9i: b\u1ecbt \u0111\u1ea7u \u1ed1ng, b\u1ed1 tr\u00ed l\u1ed7 tho\u00e1t n\u01b0\u1edbc khu\u1ea5t.<br \/>\n&#8211; X\u01b0\u1edbc b\u1ec1 m\u1eb7t HL: s\u1eed d\u1ee5ng b\u0103ng keo\/m\u00e0ng b\u1ea3o v\u1ec7 trong thi c\u00f4ng; \u0111\u00e1nh x\u01b0\u1edbc l\u1ea1i \u0111\u1ed3ng h\u01b0\u1edbng khi b\u00e0n giao.<\/p>\n<h2 id=\"toc-9-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n<p>&#8211; ASTM A554 \u2013 Welded Stainless Steel Mechanical Tubing; ASTM A240 \u2013 Chromium and Chromium\u2013Nickel Stainless Steel Plate, Sheet, and Strip.<br \/>\n&#8211; Nickel Institute: Guidelines for stainless steel in atmospheric environments; Tea staining technical paper.<br \/>\n&#8211; Australian Stainless Steel Development Association (ASSDA): Cleaning and Maintenance of Stainless Steel.<br \/>\n&#8211; Outokumpu\/Atlas\/AK Steel Datasheets: 201\/304\/316(L) properties and corrosion resistance.<\/p>\n<h2 id=\"toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ec3 c\u00f3 m\u1ed9t b\u1ed9 c\u1ed5ng inox b\u1ec1n \u2013 \u0111\u1eb9p \u2013 t\u1ed1i \u01b0u chi ph\u00ed, h\u00e3y:<br \/>\n&#8211; Ch\u1ecdn m\u00e1c th\u00e9p \u0111\u00fang m\u00f4i tr\u01b0\u1eddng (304 cho n\u1ed9i \u0111\u00f4 H\u00e0 N\u1ed9i; 316L cho v\u00f9ng chloride; 201 cho khu v\u1ef1c s\u1ea1ch, h\u1ea1n ch\u1ebf ngo\u00e0i tr\u1eddi l\u00e2u d\u00e0i).<br \/>\n&#8211; Thi\u1ebft k\u1ebf khung\u2013x\u01b0\u01a1ng \u0111\u1ee7 c\u1ee9ng (\u01b0u ti\u00ean t\u0103ng \u0111\u1ed9 d\u00e0y \u1edf khung), ph\u1ee5 ki\u1ec7n \u0111\u1ed3ng b\u1ed9 inox 304\/316.<br \/>\n&#8211; H\u00e0n \u0111\u00fang que, x\u1eed l\u00fd th\u1ee5 \u0111\u1ed9ng h\u00f3a sau h\u00e0n v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t nh\u1ea5t qu\u00e1n.<br \/>\n&#8211; L\u1eadp d\u1ef1 to\u00e1n theo kh\u1ed1i l\u01b0\u1ee3ng th\u1ef1c v\u00e0 m\u1ee9c \u0111\u1ed9 ho\u00e0n thi\u1ec7n; c\u00e2n nh\u1eafc t\u1ef1 \u0111\u1ed9ng h\u00f3a theo nhu c\u1ea7u.<br \/>\nTh\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1c nguy\u00ean t\u1eafc tr\u00ean, c\u1ed5ng inox s\u1ebd c\u00f3 tu\u1ed5i th\u1ecd d\u00e0i, b\u1ea3o tr\u00ec th\u1ea5p v\u00e0 gi\u1eef th\u1ea9m m\u1ef9 b\u1ec1n b\u1ec9 theo th\u1eddi gian.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n c\u1ea5u h\u00ecnh v\u1eadt t\u01b0, b\u1ea3n v\u1ebd v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t cho c\u00f4ng tr\u00ecnh c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u2013 Hotline: 0343.417.281 \u2013 Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 l\u00e0m c\u1ed5ng inox: ch\u1ecdn m\u00e1c 201\/304\/316, quy c\u00e1ch \u1ed1ng h\u1ed9p, m\u1eabu m\u00e3, quy tr\u00ecnh thi c\u00f4ng, b\u00e1o gi\u00e1 tham chi\u1ebfu v\u00e0 m\u1eb9o t\u1ed1i \u01b0u chi ph\u00ed.<\/p>\n","protected":false},"author":7,"featured_media":1063,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2148","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\/2148","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=2148"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2148\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1063"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}