{"id":1191,"date":"2025-10-16T12:33:57","date_gmt":"2025-10-16T05:33:57","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-hop-vuong-chu-nhat-quy-cach-chuan-va-ung-dung-khung-ket-cau\/"},"modified":"2025-10-16T12:33:57","modified_gmt":"2025-10-16T05:33:57","slug":"inox-hop-vuong-chu-nhat-quy-cach-chuan-va-ung-dung-khung-ket-cau","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-hop-vuong-chu-nhat-quy-cach-chuan-va-ung-dung-khung-ket-cau\/","title":{"rendered":"Inox h\u1ed9p vu\u00f4ng, ch\u1eef nh\u1eadt: Quy c\u00e1ch chu\u1ea9n v\u00e0 \u1ee9ng d\u1ee5ng khung k\u1ebft c\u1ea5u"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-1-inox-hop-la-gi-tieu-chuan-va-be-mat\">1) Inox h\u1ed9p l\u00e0 g\u00ec? Ti\u00eau chu\u1ea9n v\u00e0 b\u1ec1 m\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-1-2-quy-cach-pho-bien-tai-thi-truong-viet-nam\">2) Quy c\u00e1ch ph\u1ed5 bi\u1ebfn t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-2-3-chon-mac-inox-theo-moi-truong-va-chi-phi\">3) Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng v\u00e0 chi ph\u00ed<\/a><\/li>\n<li><a href=\"#toc-3-4-tinh-trong-luong-inox-hop-de-du-toan\">4) T\u00ednh tr\u1ecdng l\u01b0\u1ee3ng inox h\u1ed9p \u0111\u1ec3 d\u1ef1 to\u00e1n<\/a><\/li>\n<li><a href=\"#toc-4-5-ung-dung-trong-lam-khung-ket-cau-chon-kich-thuoc\">5) \u1ee8ng d\u1ee5ng trong l\u00e0m khung k\u1ebft c\u1ea5u: ch\u1ecdn k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y<\/a><\/li>\n<li><a href=\"#toc-5-6-gia-cong-lap-dat-va-hoan-thien-be-mat\">6) Gia c\u00f4ng, l\u1eafp \u0111\u1eb7t v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-6-7-kiem-soat-chat-luong-do-day-mac-thep-sai-so\">7) Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng: \u0111\u1ed9 d\u00e0y, m\u00e1c th\u00e9p, sai s\u1ed1<\/a><\/li>\n<li><a href=\"#toc-7-8-so-sanh-chi-phi-toi-uu-hoa\">8) So s\u00e1nh chi ph\u00ed \u2013 t\u1ed1i \u01b0u h\u00f3a<\/a><\/li>\n<li><a href=\"#toc-8-9-quy-cach-dat-hang-mau\">9) Quy c\u00e1ch \u0111\u1eb7t h\u00e0ng m\u1eabu<\/a><\/li>\n<li><a href=\"#toc-9-10-cau-hoi-nhanh-dap-gon\">10) C\u00e2u h\u1ecfi nhanh \u2013 \u0111\u00e1p g\u1ecdn<\/a><\/li>\n<li><a href=\"#toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox h\u1ed9p (\u1ed1ng h\u1ed9p inox) \u2013 g\u1ed3m hai nh\u00f3m ch\u00ednh l\u00e0 h\u1ed9p vu\u00f4ng v\u00e0 h\u1ed9p ch\u1eef nh\u1eadt \u2013 l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng \u0111\u1ec3 l\u00e0m khung k\u1ebft c\u1ea5u nh\u1edd b\u1ec1 m\u1eb7t \u0111\u1eb9p, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng v\u1eefng t\u1ed1t. Trong h\u1ec7 s\u1ea3n ph\u1ea9m inox (t\u1ea5m, cu\u1ed9n, \u1ed1ng, h\u1ed9p, thanh \u0111\u1eb7c), inox h\u1ed9p l\u00e0 \u201cx\u01b0\u01a1ng s\u1ed1ng\u201d c\u1ee7a nhi\u1ec1u h\u1ea1ng m\u1ee5c khung: m\u00e1i che, gian k\u00e8o, lan can, c\u1eeda c\u1ed5ng, khung m\u00e1y, gi\u00e0n treo, bi\u1ec3n b\u1ea3ng. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p quy c\u00e1ch chu\u1ea9n, c\u00e1ch ch\u1ecdn m\u00e1c \u2013 k\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y, h\u01b0\u1edbng d\u1eabn t\u00ednh tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 c\u00e1c l\u01b0u \u00fd gia c\u00f4ng, l\u1eafp \u0111\u1eb7t \u0111\u1ec3 t\u1ed1i \u01b0u \u0111\u1ed9 b\u1ec1n \u2013 chi ph\u00ed.<\/p>\n<h2 id=\"toc-0-1-inox-hop-la-gi-tieu-chuan-va-be-mat\">1) Inox h\u1ed9p l\u00e0 g\u00ec? Ti\u00eau chu\u1ea9n v\u00e0 b\u1ec1 m\u1eb7t<\/h2>\n<p>&#8211; Kh\u00e1i ni\u1ec7m: S\u1ea3n ph\u1ea9m \u1ed1ng \u0111\u1ecbnh h\u00ecnh h\u00e0n (welded tube), t\u1ea1o h\u00ecnh t\u1eeb b\u0103ng cu\u1ed9n inox qua d\u1eadp cu\u1ed9n v\u00e0 h\u00e0n (TIG\/HF). C\u00f3 g\u00e2n h\u00e0n d\u1ecdc, t\u00f9y y\u00eau c\u1ea7u c\u00f3 th\u1ec3 m\u00e0i b\u1ecf g\u00e2n trong\/ngo\u00e0i.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng th\u00f4ng d\u1ee5ng:<br \/>\n  &#8211; ASTM A554: Welded stainless steel mechanical tubing (ph\u1ed5 bi\u1ebfn cho h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt d\u00f9ng k\u1ebft c\u1ea5u c\u01a1 kh\u00ed, trang tr\u00ed).<br \/>\n  &#8211; ASTM A312: \u1ed0ng inox c\u1ea5p \u00e1p (tham kh\u1ea3o khi c\u1ea7n y\u00eau c\u1ea7u kh\u1eaft khe v\u1ec1 c\u01a1 t\u00ednh\/\u0103n m\u00f2n).<br \/>\n  &#8211; JIS G3448 ho\u1eb7c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1ec1 \u1ed1ng inox m\u1ecfng d\u00f9ng c\u00f4ng tr\u00ecnh.<br \/>\n&#8211; Chi\u1ec1u d\u00e0i ti\u00eau chu\u1ea9n: 6.000 mm\/thanh (c\u00f3 th\u1ec3 c\u1eaft quy c\u00e1ch).<br \/>\n&#8211; B\u1ec1 m\u1eb7t:<br \/>\n  &#8211; No.1 (t\u1ea9y g\u1ec9 c\u00e1n n\u00f3ng) \u2013 c\u00f4ng nghi\u1ec7p, k\u1ebft c\u1ea5u \u1ea9n.<br \/>\n  &#8211; 2B \u2013 m\u1edd m\u1ecbn; ph\u1ed5 bi\u1ebfn cho khung \u1ea9n.<br \/>\n  &#8211; HL\/No.4 \u2013 x\u01b0\u1edbc hairline\/satin; d\u00f9ng trang tr\u00ed, lan can.<br \/>\n  &#8211; BA\/Mirror \u2013 b\u00f3ng g\u01b0\u01a1ng; y\u00eau c\u1ea7u th\u1ea9m m\u1ef9 cao.<br \/>\n&#8211; B\u00e1n k\u00ednh bo g\u00f3c: th\u01b0\u1eddng \u2264 2\u20133 l\u1ea7n chi\u1ec1u d\u00e0y t (\u1ea3nh h\u01b0\u1edfng th\u1ea9m m\u1ef9 v\u00e0 l\u1eafp gh\u00e9p).<br \/>\n&#8211; Dung sai \u0111i\u1ec3n h\u00ecnh theo ASTM A554: k\u00edch th\u01b0\u1edbc ngo\u00e0i \u00b10,5% (t\u1ed1i thi\u1ec3u \u00b10,5 mm), \u0111\u1ed9 th\u1eb3ng kho\u1ea3ng \u22641,5 mm\/3 m; \u0111\u1ed9 d\u00e0y theo b\u0103ng cu\u1ed9n ngu\u1ed3n (tham kh\u1ea3o nh\u00e0 m\u00e1y).<\/p>\n<h2 id=\"toc-1-2-quy-cach-pho-bien-tai-thi-truong-viet-nam\">2) Quy c\u00e1ch ph\u1ed5 bi\u1ebfn t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam<\/h2>\n<h3>H\u1ed9p vu\u00f4ng (B\u00d7B, mm)<\/h3>\n<p>&#8211; K\u00edch th\u01b0\u1edbc th\u00f4ng d\u1ee5ng: 10\u00d710; 12\u00d712; 16\u00d716; 20\u00d720; 25\u00d725; 30\u00d730; 38\u00d738; 40\u00d740; 50\u00d750; 60\u00d760; 75\u00d775; 80\u00d780; 90\u00d790; 100\u00d7100; 120\u00d7120; 150\u00d7150; 200\u00d7200.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y (t): 0,6\u20131,2 mm (trang tr\u00ed nh\u1eb9); 1,5\u20132,0 mm (khung v\u1eeba); 2,5\u20133,0 mm (khung ch\u1ecbu l\u1ef1c); \u0111\u1eb7c th\u00f9 n\u1eb7ng c\u00f3 th\u1ec3 t\u1edbi 4\u20136 mm.<\/p>\n<h3>H\u1ed9p ch\u1eef nh\u1eadt (B\u00d7H, mm)<\/h3>\n<p>&#8211; K\u00edch th\u01b0\u1edbc th\u00f4ng d\u1ee5ng: 10\u00d720; 20\u00d740; 25\u00d750; 30\u00d760; 40\u00d780; 50\u00d7100; 60\u00d7120; 80\u00d7160, v.v.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y t\u01b0\u01a1ng t\u1ef1 h\u1ed9p vu\u00f4ng; ch\u1ecdn chi\u1ec1u l\u1edbn theo ph\u01b0\u01a1ng ch\u1ecbu u\u1ed1n ch\u00ednh.<\/p>\n<h3>M\u00e1c inox s\u1eb5n c\u00f3<\/h3>\n<p>&#8211; 201, 304\/304L, 316\/316L l\u00e0 ch\u1ee7 l\u1ef1c; 430 \u00edt d\u00f9ng cho ngo\u00e0i tr\u1eddi.<br \/>\n&#8211; Chi\u1ec1u d\u00e0i: 6 m; cung c\u1ea5p c\u1eaft l\u1ebb, \u0111\u00e1nh x\u01b0\u1edbc, b\u1ecdc film theo y\u00eau c\u1ea7u.<\/p>\n<h2 id=\"toc-2-3-chon-mac-inox-theo-moi-truong-va-chi-phi\">3) Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng v\u00e0 chi ph\u00ed<\/h2>\n<p>&#8211; Inox 201 (Cr\u2013Mn\u2013Ni th\u1ea5p):<br \/>\n  &#8211; \u01afu: gi\u00e1 r\u1ebb, c\u1ee9ng b\u1ec1 m\u1eb7t, ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t\/kh\u00f4 r\u00e1o.<br \/>\n  &#8211; Nh\u01b0\u1ee3c: ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p; d\u1ec5 \u1ed1 v\u00e0ng\/tea-stain, pitting \u1edf m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n\/axit y\u1ebfu.<br \/>\n  &#8211; Khuy\u1ebfn ngh\u1ecb: trong nh\u00e0, h\u1ea1ng m\u1ee5c trang tr\u00ed, khung nh\u1eb9 kh\u00f4ng ti\u1ebfp x\u00fac ho\u00e1 ch\u1ea5t.<br \/>\n&#8211; Inox 304\/304L (18Cr\u20138Ni):<br \/>\n  &#8211; \u01afu: c\u00e2n b\u1eb1ng gi\u1eefa ch\u1ed1ng \u0103n m\u00f2n \u2013 kh\u1ea3 n\u0103ng gia c\u00f4ng \u2013 gi\u00e1; d\u00f9ng \u0111\u01b0\u1ee3c ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb.<br \/>\n  &#8211; Nh\u01b0\u1ee3c: gi\u00e1 cao h\u01a1n 201; c\u00f3 th\u1ec3 \u1ed1 nh\u1eb9 n\u1ebfu kh\u00f4ng b\u1ea3o d\u01b0\u1ee1ng \u1edf m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n.<br \/>\n  &#8211; Khuy\u1ebfn ngh\u1ecb: khung m\u00e1i, lan can, c\u1ed5ng, khung m\u00e1y trong \u0111a s\u1ed1 \u1ee9ng d\u1ee5ng d\u00e2n d\u1ee5ng\/c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; Inox 316\/316L (Mo t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng clorua):<br \/>\n  &#8211; \u01afu: ch\u1ed1ng pitting\/crevice t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, h\u1ed3 b\u01a1i (clorua), h\u00f3a ch\u1ea5t nh\u1eb9.<br \/>\n  &#8211; Nh\u01b0\u1ee3c: \u0111\u1eaft nh\u1ea5t.<br \/>\n  &#8211; Khuy\u1ebfn ngh\u1ecb: ven bi\u1ec3n, th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c, m\u00f4i tr\u01b0\u1eddng ho\u00e1 ch\u1ea5t, c\u00f4ng tr\u00ecnh cao c\u1ea5p.<\/p>\n<p>G\u1ee3i \u00fd nhanh:<br \/>\n&#8211; Trong nh\u00e0 kh\u00f4: 201 ho\u1eb7c 304.<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb: 304\/304L.<br \/>\n&#8211; Ven bi\u1ec3n\/h\u1ed3 b\u01a1i\/h\u00f3a ch\u1ea5t: 316\/316L.<\/p>\n<h2 id=\"toc-3-4-tinh-trong-luong-inox-hop-de-du-toan\">4) T\u00ednh tr\u1ecdng l\u01b0\u1ee3ng inox h\u1ed9p \u0111\u1ec3 d\u1ef1 to\u00e1n<\/h2>\n<p>&#8211; C\u00f4ng th\u1ee9c di\u1ec7n t\u00edch ti\u1ebft di\u1ec7n (mm\u00b2): A = B\u00d7H \u2212 (B \u2212 2t)\u00d7(H \u2212 2t).<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang inox: ~7,93 g\/cm\u00b3.<br \/>\n&#8211; Quy \u0111\u1ed5i kg\/m: Kg\/m \u2248 0,00793 \u00d7 A.<br \/>\n&#8211; V\u00ed d\u1ee5:<br \/>\n  &#8211; H\u1ed9p vu\u00f4ng 50\u00d750\u00d71,5 mm: A = 50\u00d750 \u2212 47\u00d747 = 291 mm\u00b2 \u2192 Kg\/m \u2248 0,00793\u00d7291 = 2,31 kg\/m. Thanh 6 m \u2248 13,9 kg.<br \/>\n  &#8211; H\u1ed9p ch\u1eef nh\u1eadt 40\u00d780\u00d71,5 mm: A = 3200 \u2212 37\u00d777 = 351 mm\u00b2 \u2192 2,78 kg\/m. Thanh 6 m \u2248 16,7 kg.<br \/>\n  &#8211; H\u1ed9p vu\u00f4ng 100\u00d7100\u00d73,0 mm: A = 10000 \u2212 94\u00d794 = 1164 mm\u00b2 \u2192 9,23 kg\/m. Thanh 6 m \u2248 55,4 kg.<\/p>\n<p>L\u01b0u \u00fd: k\u1ebft qu\u1ea3 g\u1ea7n \u0111\u00fang; g\u00f3c bo v\u00e0 dung sai th\u1ef1c t\u1ebf khi\u1ebfn kh\u1ed1i l\u01b0\u1ee3ng ch\u00eanh nh\u1eb9.<\/p>\n<h2 id=\"toc-4-5-ung-dung-trong-lam-khung-ket-cau-chon-kich-thuoc\">5) \u1ee8ng d\u1ee5ng trong l\u00e0m khung k\u1ebft c\u1ea5u: ch\u1ecdn k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y<\/h2>\n<h3>Ph\u00e2n lo\u1ea1i \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/h3>\n<p>&#8211; Khung m\u00e1i che, gi\u00e0n lam, s\u00e0n thao t\u00e1c nh\u1eb9.<br \/>\n&#8211; Khung c\u1eeda c\u1ed5ng, h\u00e0ng r\u00e0o, lan can \u2013 tay v\u1ecbn.<br \/>\n&#8211; Khung bi\u1ec3n b\u1ea3ng, pano qu\u1ea3ng c\u00e1o.<br \/>\n&#8211; Khung m\u00e1y, k\u1ec7 ch\u1ee9a, gi\u00e1 treo thi\u1ebft b\u1ecb.<br \/>\n&#8211; Khung nh\u00e0 ti\u1ec1n ch\u1ebf nh\u1eb9, gian k\u00e8o ph\u1ee5 tr\u1ee3.<\/p>\n<h3>Nguy\u00ean t\u1eafc ch\u1ecdn ti\u1ebft di\u1ec7n<\/h3>\n<p>&#8211; \u0110\u1ed9 d\u00e0y t v\u00e0 chi\u1ec1u cao H quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 c\u1ee9ng u\u1ed1n. V\u1edbi nh\u1ecbp l\u1edbn, \u01b0u ti\u00ean h\u1ed9p ch\u1eef nh\u1eadt \u0111\u1eb7t c\u1ea1nh l\u1edbn theo ph\u01b0\u01a1ng u\u1ed1n ch\u00ednh.<br \/>\n&#8211; H\u1ed9p m\u1ecfng (t \u2264 1,0 mm) ch\u1ec9 d\u00f9ng trang tr\u00ed\/\u1ed1p, kh\u00f4ng ch\u1ecbu l\u1ef1c.<br \/>\n&#8211; G\u1ee3i \u00fd th\u1ef1c h\u00e0nh (tham kh\u1ea3o, c\u1ea7n t\u00ednh to\u00e1n chi ti\u1ebft theo t\u1ea3i \u2013 nh\u1ecbp):<br \/>\n  &#8211; Nh\u1ecbp 1,0\u20131,5 m (k\u1ec7 nh\u1eb9, lam): 20\u00d740\u00d71,2\u20131,5 mm ho\u1eb7c 30\u00d730\u00d71,2\u20131,5 mm.<br \/>\n  &#8211; Nh\u1ecbp 1,5\u20132,5 m (m\u00e1i t\u00f4n nh\u1eb9, khung pano nh\u1ecf): 40\u00d780\u00d71,5\u20132,0 mm ho\u1eb7c 50\u00d750\u00d71,5\u20132,0 mm.<br \/>\n  &#8211; Nh\u1ecbp 2,5\u20133,5 m (khung m\u00e1i, c\u1ed5ng v\u1eeba): 60\u00d7120\u00d72,0 mm ho\u1eb7c 75\u00d775\u00d72,0\u20132,5 mm.<br \/>\n  &#8211; C\u1ed9t\/d\u1ea7m ch\u1ecbu l\u1ef1c v\u1eeba: 80\u00d780\u00d72,5\u20133,0 mm ho\u1eb7c 50\u00d7100\u00d72,5\u20133,0 mm.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t v\u00f5ng: gi\u1edbi h\u1ea1n L\/250\u2013L\/300 v\u1edbi k\u1ebft c\u1ea5u c\u00f3 y\u00eau c\u1ea7u th\u1ea9m m\u1ef9; t\u0103ng chi\u1ec1u cao ti\u1ebft di\u1ec7n hi\u1ec7u qu\u1ea3 h\u01a1n t\u0103ng \u0111\u1ed9 d\u00e0y.<br \/>\n&#8211; \u1ed4n \u0111\u1ecbnh n\u00e9n\/u\u1ed1n: tr\u00e1nh H\/t qu\u00e1 l\u1edbn cho c\u1ea5u ki\u1ec7n n\u00e9n; th\u1ef1c t\u1ebf n\u00ean gi\u1eef H\/t \u2264 50\u201360 v\u1edbi chi ti\u1ebft ch\u1ecbu n\u00e9n r\u00f5 r\u1ec7t.<\/p>\n<h3>K\u1ebft c\u1ea5u li\u00ean k\u1ebft v\u00e0 chi ti\u1ebft<\/h3>\n<p>&#8211; Li\u00ean k\u1ebft h\u00e0n: TIG (\u0111\u1eb9p, \u00edt b\u1eafn t\u00f3e) cho h\u1ea1ng m\u1ee5c l\u1ed9 m\u1eb7t; MIG ho\u1eb7c h\u00e0n h\u1ed3 quang cho khung \u1ea9n. L\u00e0m s\u1ea1ch, m\u00e0i ph\u00e1 x\u1ec9, th\u1ee5 \u0111\u1ed9ng h\u00f3a m\u1ed1i h\u00e0n \u0111\u1ec3 ph\u1ee5c h\u1ed3i kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9.<br \/>\n&#8211; Li\u00ean k\u1ebft bu l\u00f4ng: d\u00f9ng b\u1ea3n m\u00e3 (base plate\/gusset) 6\u201312 mm, bu l\u00f4ng n\u1edf\/ho\u00e1 ch\u1ea5t; ch\u00e8n gio\u0103ng c\u00e1ch \u0111i\u1ec7n khi b\u1eaft v\u1edbi th\u00e9p \u0111en \u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a.<br \/>\n&#8211; N\u1eafp b\u1ecbt \u0111\u1ea7u, l\u1ed7 tho\u00e1t n\u01b0\u1edbc: khoan l\u1ed7 x\u1ea3 \u1edf \u0111\u00e1y, b\u1ecbt \u0111\u1ea7u ch\u1ed1ng n\u01b0\u1edbc \u0111\u1ecdng trong \u1ed1ng g\u00e2y \u0103n m\u00f2n t\u1eeb b\u00ean trong.<br \/>\n&#8211; Neo n\u1ec1n: ki\u1ec3m tra c\u01b0\u1eddng \u0111\u1ed9 b\u00ea t\u00f4ng, ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u s\u00e2u neo ph\u00f9 h\u1ee3p t\u1ea3i tr\u1ecdng gi\u1eadt gi\u00f3.<\/p>\n<h2 id=\"toc-5-6-gia-cong-lap-dat-va-hoan-thien-be-mat\">6) Gia c\u00f4ng, l\u1eafp \u0111\u1eb7t v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/h2>\n<p>&#8211; C\u1eaft: c\u01b0a v\u00f2ng, m\u00e1y c\u1eaft \u0111\u0129a h\u1ee3p kim, plasma\/laser (\u0111\u1ed9 ch\u00ednh x\u00e1c cao cho m\u1ed9ng gh\u00e9p).<br \/>\n&#8211; H\u00e0n: v\u1ec7 sinh tr\u01b0\u1edbc h\u00e0n, d\u00f9ng d\u00e2y h\u00e0n c\u00f9ng m\u00e1c (308L cho 304; 316L cho 316). B\u1ea3o v\u1ec7 kh\u00ed t\u1ed1t \u0111\u1ec3 h\u1ea1n ch\u1ebf ch\u00e1y x\u00e9m.<br \/>\n&#8211; X\u1eed l\u00fd sau h\u00e0n: m\u00e0i tinh h\u1ea1t #240\u2013#400 cho HL\/No.4; t\u1ea9y m\u1ed1i h\u00e0n b\u1eb1ng gel pickling, r\u1eeda s\u1ea1ch, th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) \u0111\u1ec3 ch\u1ed1ng \u1ed1 v\u00e0ng.<br \/>\n&#8211; B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t: b\u1ecdc film PE khi v\u1eadn chuy\u1ec3n\/l\u1eafp \u0111\u1eb7t; th\u00e1o film sau khi ho\u00e0n thi\u1ec7n v\u00e0 v\u1ec7 sinh b\u1eb1ng kh\u0103n m\u1ec1m, n\u01b0\u1edbc s\u1ea1ch.<br \/>\n&#8211; B\u1ea3o tr\u00ec: khu v\u1ef1c ven bi\u1ec3n\/h\u1ed3 b\u01a1i r\u1eeda n\u01b0\u1edbc ng\u1ecdt \u0111\u1ecbnh k\u1ef3 2\u20134 tu\u1ea7n\/l\u1ea7n; tr\u00e1nh h\u00f3a ch\u1ea5t ch\u1ee9a clorua\/ch\u1ea5t t\u1ea9y r\u1eeda m\u1ea1nh.<\/p>\n<h2 id=\"toc-6-7-kiem-soat-chat-luong-do-day-mac-thep-sai-so\">7) Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng: \u0111\u1ed9 d\u00e0y, m\u00e1c th\u00e9p, sai s\u1ed1<\/h2>\n<p>&#8211; Ki\u1ec3m \u0111\u1ed9 d\u00e0y th\u1ef1c: th\u01b0\u1edbc c\u1eb7p\/si\u00eau \u00e2m; so s\u00e1nh v\u1edbi quy c\u00e1ch \u0111\u1eb7t h\u00e0ng, tr\u00e1nh h\u00e0ng \u201c\u0111\u1ed9n\u201d m\u1ecfng.<br \/>\n&#8211; Ki\u1ec3m m\u00e1c nhanh:<br \/>\n  &#8211; Nam ch\u00e2m ch\u1ec9 mang t\u00ednh tham kh\u1ea3o (304 \u0111\u00f4i khi h\u01a1i nhi\u1ec5m t\u1eeb sau c\u00e1n; 201 c\u00f3 th\u1ec3 \u00edt h\u00fat).<br \/>\n  &#8211; Th\u1eed axit ho\u1eb7c d\u00f9ng thi\u1ebft b\u1ecb XRF \u0111\u1ec3 ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n (Cr, Ni, Mo).<br \/>\n  &#8211; Y\u00eau c\u1ea7u CO\/CQ, s\u1ed1 heat, ti\u00eau chu\u1ea9n s\u1ea3n xu\u1ea5t (ASTM A554 ho\u1eb7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng).<br \/>\n&#8211; Ki\u1ec3m dung sai v\u00e0 b\u1ec1 m\u1eb7t: \u0111\u1ed9 th\u1eb3ng, m\u00e9o xo\u1eafn, bo g\u00f3c, v\u1ebft r\u1ed7\/\u0111\u01b0\u1eddng h\u00e0n, \u0111\u1ed3ng \u0111\u1ec1u v\u00e2n x\u01b0\u1edbc.<\/p>\n<h2 id=\"toc-7-8-so-sanh-chi-phi-toi-uu-hoa\">8) So s\u00e1nh chi ph\u00ed \u2013 t\u1ed1i \u01b0u h\u00f3a<\/h2>\n<p>&#8211; Chi ph\u00ed v\u1eadt li\u1ec7u: 201 r\u1ebb h\u01a1n 304 kho\u1ea3ng 20\u201335%; 316 cao h\u01a1n 304 kho\u1ea3ng 40\u201370% (tham kh\u1ea3o; bi\u1ebfn \u0111\u1ed9ng theo th\u1ecb tr\u01b0\u1eddng).<br \/>\n&#8211; T\u1ed1i \u01b0u ti\u1ebft di\u1ec7n: \u01b0u ti\u00ean h\u1ed9p ch\u1eef nh\u1eadt \u201ccao\u201d \u0111\u1ec3 t\u0103ng m\u00f4 men qu\u00e1n t\u00ednh thay v\u00ec ch\u1ec9 t\u0103ng \u0111\u1ed9 d\u00e0y; gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng m\u00e0 v\u1eabn \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng.<br \/>\n&#8211; T\u1ed1i \u01b0u ho\u00e0n thi\u1ec7n: ch\u1ec9 d\u00f9ng HL\/BA cho ph\u1ea7n l\u1ed9 m\u1eb7t; ph\u1ea7n \u1ea9n d\u00f9ng 2B \u0111\u1ec3 ti\u1ebft ki\u1ec7m.<\/p>\n<h2 id=\"toc-8-9-quy-cach-dat-hang-mau\">9) Quy c\u00e1ch \u0111\u1eb7t h\u00e0ng m\u1eabu<\/h2>\n<p>Khi \u0111\u1eb7t mua, m\u00f4 t\u1ea3 \u0111\u1ee7 7 th\u00f4ng s\u1ed1:<br \/>\n&#8211; M\u00e1c: 304L.<br \/>\n&#8211; H\u00ecnh: H\u1ed9p ch\u1eef nh\u1eadt.<br \/>\n&#8211; K\u00edch th\u01b0\u1edbc: 40\u00d780 mm.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y: 2,0 mm.<br \/>\n&#8211; Chi\u1ec1u d\u00e0i: 6.000 mm (c\u1eaft 2\u00d73.000 mm).<br \/>\n&#8211; B\u1ec1 m\u1eb7t: HL, b\u1ecdc film 2 m\u1eb7t.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n: ASTM A554, m\u00e0i b\u1ecf g\u00e2n trong t\u1ea1i v\u1ecb tr\u00ed m\u1ed1i gh\u00e9p.<br \/>\nC\u00e1ch ghi: \u201cH\u1ed9p inox 304L 40\u00d780\u00d72,0 mm, HL, ASTM A554, L=6 m (c\u1eaft 2\u00d73 m), c\u00f3 film.\u201d<\/p>\n<h2 id=\"toc-9-10-cau-hoi-nhanh-dap-gon\">10) C\u00e2u h\u1ecfi nhanh \u2013 \u0111\u00e1p g\u1ecdn<\/h2>\n<p>&#8211; Inox 201 c\u00f3 r\u1ec9 kh\u00f4ng? C\u00f3, trong m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n\/ho\u00e1 ch\u1ea5t nh\u1eb9 s\u1ebd \u1ed1 v\u00e0ng v\u00e0 pitting nhanh h\u01a1n 304\/316.<br \/>\n&#8211; 304 c\u00f3 h\u00fat nam ch\u00e2m kh\u00f4ng? V\u1ec1 l\u00fd thuy\u1ebft g\u1ea7n nh\u01b0 kh\u00f4ng; nh\u01b0ng sau gia c\u00f4ng\/c\u00e1n ngu\u1ed9i c\u00f3 th\u1ec3 h\u01a1i nhi\u1ec5m t\u1eeb \u2013 kh\u00f4ng d\u00f9ng nam ch\u00e2m \u0111\u1ec3 ph\u00e2n bi\u1ec7t m\u00e1c m\u1ed9t c\u00e1ch tuy\u1ec7t \u0111\u1ed1i.<br \/>\n&#8211; Inox h\u1ed9p c\u00f3 d\u00f9ng l\u00e0m khung ch\u1ecbu l\u1ef1c \u0111\u01b0\u1ee3c kh\u00f4ng? C\u00f3, n\u1ebfu ch\u1ecdn \u0111\u00fang m\u00e1c, ti\u1ebft di\u1ec7n, \u0111\u1ed9 d\u00e0y v\u00e0 thi\u1ebft k\u1ebf \u2013 thi c\u00f4ng chu\u1ea9n. V\u1edbi c\u1ea5u ki\u1ec7n ch\u00ednh, n\u00ean c\u00f3 t\u00ednh to\u00e1n k\u1ef9 thu\u1eadt.<br \/>\n&#8211; C\u00f3 c\u1ea7n s\u01a1n\/m\u1ea1 k\u1ebdm inox kh\u00f4ng? Kh\u00f4ng b\u1eaft bu\u1ed9c. C\u00f3 th\u1ec3 s\u01a1n\/b\u1ed9t \u0111\u1ec3 th\u1ea9m m\u1ef9; kh\u00f4ng m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng cho inox.<br \/>\n&#8211; D\u00f9ng ngo\u00e0i tr\u1eddi ven bi\u1ec3n n\u00ean ch\u1ecdn g\u00ec? 316\/316L, x\u1eed l\u00fd m\u1ed1i h\u00e0n t\u1ed1t, b\u1ea3o tr\u00ec r\u1eeda n\u01b0\u1edbc ng\u1ecdt \u0111\u1ecbnh k\u1ef3.<\/p>\n<h2 id=\"toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Inox h\u1ed9p vu\u00f4ng v\u00e0 ch\u1eef nh\u1eadt l\u00e0 gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u cho khung k\u1ebft c\u1ea5u nh\u1edd \u0111\u1ed9 c\u1ee9ng v\u1eefng, th\u1ea9m m\u1ef9 v\u00e0 tu\u1ed5i th\u1ecd cao. \u0110\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 k\u1ef9 thu\u1eadt \u2013 kinh t\u1ebf, h\u00e3y:<br \/>\n&#8211; Ch\u1ecdn m\u00e1c theo m\u00f4i tr\u01b0\u1eddng: 201 (n\u1ed9i th\u1ea5t), 304 (ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb), 316 (ven bi\u1ec3n\/ho\u00e1 ch\u1ea5t).<br \/>\n&#8211; X\u00e1c \u0111\u1ecbnh \u0111\u00fang quy c\u00e1ch: h\u00ecnh \u2013 k\u00edch th\u01b0\u1edbc B\u00d7H \u2013 \u0111\u1ed9 d\u00e0y \u2013 b\u1ec1 m\u1eb7t \u2013 ti\u00eau chu\u1ea9n.<br \/>\n&#8211; \u01afu ti\u00ean h\u00ecnh ch\u1eef nh\u1eadt cao theo ph\u01b0\u01a1ng ch\u1ecbu u\u1ed1n; ki\u1ec3m so\u00e1t v\u00f5ng L\/250\u2013L\/300.<br \/>\n&#8211; Thi c\u00f4ng chu\u1ea9n: h\u00e0n ph\u00f9 h\u1ee3p, x\u1eed l\u00fd m\u1ed1i h\u00e0n, ch\u1ed1ng n\u01b0\u1edbc \u0111\u1ecdng, c\u00e1ch ly \u0111i\u1ec7n h\u00f3a.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng: \u0111\u1ed9 d\u00e0y th\u1ef1c, m\u00e1c th\u00e9p, dung sai v\u00e0 b\u1ec1 m\u1eb7t.<\/p>\n<p>Th\u1ef1c hi\u1ec7n t\u1ed1t c\u00e1c nguy\u00ean t\u1eafc tr\u00ean, khung k\u1ebft c\u1ea5u t\u1eeb inox h\u1ed9p s\u1ebd b\u1ec1n ch\u1eafc, \u0111\u1eb9p v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed su\u1ed1t v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1ed5ng h\u1ee3p quy c\u00e1ch inox h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt, m\u00e1c 201\/304\/316, \u0111\u1ed9 d\u00e0y, ASTM A554, c\u00e1ch ch\u1ecdn k\u00edch th\u01b0\u1edbc khung k\u1ebft c\u1ea5u, t\u00ednh tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 l\u01b0u \u00fd thi c\u00f4ng.<\/p>\n","protected":false},"author":7,"featured_media":1034,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1191","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\/1191","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=1191"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1191\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1034"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}