{"id":2108,"date":"2026-06-06T12:35:07","date_gmt":"2026-06-06T05:35:07","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-hop-vuong-chu-nhat-chon-quy-cach-cho-khung-ket-cau-2\/"},"modified":"2026-06-06T12:35:07","modified_gmt":"2026-06-06T05:35:07","slug":"inox-hop-vuong-chu-nhat-chon-quy-cach-cho-khung-ket-cau-2","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-hop-vuong-chu-nhat-chon-quy-cach-cho-khung-ket-cau-2\/","title":{"rendered":"Inox h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt: ch\u1ecdn quy c\u00e1ch cho 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-tong-quan-nhanh-inox-hop-vuong-vs-hop-chu-nhat\">T\u1ed5ng quan nhanh: inox h\u1ed9p vu\u00f4ng vs. h\u1ed9p ch\u1eef nh\u1eadt<\/a><\/li>\n<li><a href=\"#toc-1-chon-mac-thep-theo-moi-truong-va-cong-nang\">Ch\u1ecdn m\u00e1c th\u00e9p theo m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00f4ng n\u0103ng<\/a><\/li>\n<li><a href=\"#toc-2-tieu-chuan-dung-sai-va-be-mat-can-biet\">Ti\u00eau chu\u1ea9n, dung sai v\u00e0 b\u1ec1 m\u1eb7t c\u1ea7n bi\u1ebft<\/a><\/li>\n<li><a href=\"#toc-3-quy-trinh-7-buoc-chon-quy-cach-cho-khungket-cau\">Quy tr\u00ecnh 7 b\u01b0\u1edbc ch\u1ecdn quy c\u00e1ch cho khung\/k\u1ebft c\u1ea5u<\/a><\/li>\n<li><a href=\"#toc-4-tinh-nhanh-voi-vi-du-thuc-te\">T\u00ednh nhanh v\u1edbi v\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-5-bang-goi-y-nhanh-theo-ung-dung-pho-bien\">B\u1ea3ng g\u1ee3i \u00fd nhanh theo \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/a><\/li>\n<li><a href=\"#toc-6-gia-cong-lap-dung-de-giu-ben-va-dep\">Gia c\u00f4ng, l\u1eafp d\u1ef1ng \u0111\u1ec3 \u201cgi\u1eef b\u1ec1n v\u00e0 \u0111\u1eb9p\u201d<\/a><\/li>\n<li><a href=\"#toc-7-kiem-soat-chat-luong-va-loi-thuong-gap\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 l\u1ed7i th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-8-toi-uu-chi-phi-ma-van-an-toan\">T\u1ed1i \u01b0u chi ph\u00ed m\u00e0 v\u1eabn an to\u00e0n<\/a><\/li>\n<li><a href=\"#toc-9-kich-thuoc-do-day-san-co-tai-thi-truong-ha-noi\">K\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y s\u1eb5n c\u00f3 t\u1ea1i th\u1ecb tr\u01b0\u1eddng H\u00e0 N\u1ed9i<\/a><\/li>\n<li><a href=\"#toc-10-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/a><\/li>\n<li><a href=\"#toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Ch\u1ecdn \u0111\u00fang quy c\u00e1ch inox h\u1ed9p vu\u00f4ng v\u00e0 h\u1ed9p ch\u1eef nh\u1eadt quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u1ec1n, tu\u1ed5i th\u1ecd v\u00e0 chi ph\u00ed c\u1ee7a khung s\u01b0\u1eddn, k\u1ebft c\u1ea5u. B\u00e0i vi\u1ebft n\u00e0y l\u00e0 h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh t\u1eeb v\u1eadt li\u1ec7u, ti\u00eau chu\u1ea9n, \u0111\u1ebfn c\u00e1ch t\u00ednh nhanh v\u00e0 g\u1ee3i \u00fd quy c\u00e1ch theo \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn t\u1ea1i x\u01b0\u1edfng, c\u00f4ng tr\u00ecnh. Ch\u1ee7 \u0111\u1ec1 n\u1eb1m trong b\u1ee9c tranh chung v\u1ec1 \u1ed1ng v\u00e0 h\u1ed9p inox (ph\u00e2n lo\u1ea1i, ti\u00eau chu\u1ea9n, \u1ee9ng d\u1ee5ng), nh\u01b0ng t\u1eadp trung gi\u1ea3i quy\u1ebft c\u00e2u h\u1ecfi duy nh\u1ea5t: ch\u1ecdn m\u00e1c, k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y inox h\u1ed9p n\u00e0o cho khung\/k\u1ebft c\u1ea5u \u0111\u1ec3 v\u1eeba b\u1ec1n, v\u1eeba kinh t\u1ebf.<\/p>\n<h2 id=\"toc-0-tong-quan-nhanh-inox-hop-vuong-vs-hop-chu-nhat\">T\u1ed5ng quan nhanh: inox h\u1ed9p vu\u00f4ng vs. h\u1ed9p ch\u1eef nh\u1eadt<\/h2>\n<p>&#8211; H\u1ed9p vu\u00f4ng (SHS): ph\u00e2n b\u1ed1 qu\u00e1n t\u00ednh \u0111\u1ec1u theo hai ph\u01b0\u01a1ng, ph\u00f9 h\u1ee3p c\u1ed9t, thanh gi\u1eb1ng ch\u1ecbu n\u00e9n\/\u00e9p, khung ch\u1ecbu xo\u1eafn nh\u1eb9, tay v\u1ecbn, lan can.<br \/>\n&#8211; H\u1ed9p ch\u1eef nh\u1eadt (RHS): c\u1ee9ng v\u1eefng h\u01a1n theo ph\u01b0\u01a1ng chi\u1ec1u cao \u0111\u1eb7t \u0111\u1ee9ng; t\u1ed1i \u01b0u l\u00e0m d\u1ea7m, x\u00e0 g\u1ed3, khung m\u00e1i, b\u1ec7 m\u00e1y c\u1ea7n ch\u1ed1ng v\u00f5ng theo m\u1ed9t ph\u01b0\u01a1ng.<br \/>\n&#8211; Chi\u1ec1u d\u00e0i ti\u00eau chu\u1ea9n: 6 m\/thanh (ph\u1ed5 bi\u1ebfn t\u1ea1i th\u1ecb tr\u01b0\u1eddng H\u00e0 N\u1ed9i).<br \/>\n&#8211; Quy c\u00e1ch th\u1ecb tr\u01b0\u1eddng th\u00f4ng d\u1ee5ng:<br \/>\n  &#8211; H\u1ed9p vu\u00f4ng: 10&#215;10 \u0111\u1ebfn 200&#215;200 mm; \u0111\u1ed9 d\u00e0y 0,6\u20133,0 mm (tr\u00ean 3 mm \u0111\u1eb7t h\u00e0ng ri\u00eang).<br \/>\n  &#8211; H\u1ed9p ch\u1eef nh\u1eadt: 20&#215;40, 30&#215;60, 40&#215;80, 50&#215;100, 60&#215;120 mm; \u0111\u1ed9 d\u00e0y 0,6\u20133,0 mm.<\/p>\n<h2 id=\"toc-1-chon-mac-thep-theo-moi-truong-va-cong-nang\">Ch\u1ecdn m\u00e1c th\u00e9p theo m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00f4ng n\u0103ng<\/h2>\n<p>&#8211; Trong nh\u00e0 kh\u00f4, \u00edt \u0103n m\u00f2n: SUS\/AISI 201 ho\u1eb7c 304. 201 ti\u1ebft ki\u1ec7m chi ph\u00ed, b\u1ec1n c\u01a1 h\u1ecdc cao, ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n 304.<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb, \u1ea9m: 304\/304L l\u00e0 l\u1ef1a ch\u1ecdn an to\u00e0n, c\u00e2n b\u1eb1ng chi ph\u00ed \u2013 b\u1ec1n \u0103n m\u00f2n.<br \/>\n&#8211; G\u1ea7n bi\u1ec3n, clo, h\u00f3a ch\u1ea5t nh\u1eb9: 316\/316L ch\u1ed1ng pitting t\u1ed1t h\u01a1n 304, ph\u00f9 h\u1ee3p khung ngo\u00e0i tr\u1eddi ven bi\u1ec3n, tr\u1ea1m x\u1eed l\u00fd n\u01b0\u1edbc m\u1eb7n.<br \/>\n&#8211; H\u00e0n nhi\u1ec1u, nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng l\u1edbn: \u01b0u ti\u00ean m\u00e1c \u201cL\u201d (304L\/316L) h\u1ea1n ch\u1ebf nh\u1ea1y c\u1ea3m \u0103n m\u00f2n v\u00f9ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t.<\/p>\n<p>Th\u00f4ng s\u1ed1 c\u01a1 h\u1ecdc tham kh\u1ea3o (th\u00e9p \u00f4stenit, gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh):<br \/>\n&#8211; \u0110\u1ed9 ch\u1ea3y Rp0.2: 201 \u2248 275 MPa; 304\/316 \u2248 205 MPa.<br \/>\n&#8211; \u0110\u1ed9 b\u1ec1n k\u00e9o: 201 \u2248 680 MPa; 304\/316 \u2248 515\u2013620 MPa.<br \/>\n&#8211; M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i E \u2248 193 GPa; kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang 7,9\u20138,0 g\/cm\u00b3.<br \/>\nNgu\u1ed3n d\u1eef li\u1ec7u: Outokumpu Stainless Steel Handbook; Euro Inox Design Manual for Structural Stainless Steel.<\/p>\n<h2 id=\"toc-2-tieu-chuan-dung-sai-va-be-mat-can-biet\">Ti\u00eau chu\u1ea9n, dung sai v\u00e0 b\u1ec1 m\u1eb7t c\u1ea7n bi\u1ebft<\/h2>\n<p>&#8211; Ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m:<br \/>\n  &#8211; ASTM A554: \u1ed0ng\/h\u1ed9p inox h\u00e0n d\u00f9ng c\u01a1 kh\u00ed \u2013 trang tr\u00ed, ph\u1ed5 bi\u1ebfn cho h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt t\u1ea1i VN.<br \/>\n  &#8211; EN 10088: Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc th\u00e9p kh\u00f4ng g\u1ec9 (tham chi\u1ebfu v\u1eadt li\u1ec7u).<br \/>\n  &#8211; ASTM A380\/A967: L\u00e0m s\u1ea1ch \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a inox sau h\u00e0n\/gia c\u00f4ng.<br \/>\n&#8211; Dung sai (tham kh\u1ea3o ASTM A554):<br \/>\n  &#8211; K\u00edch th\u01b0\u1edbc c\u1ea1nh: th\u01b0\u1eddng \u00b10,5% (t\u1ed1i thi\u1ec3u \u00b10,13 mm) t\u00f9y c\u1ee1.<br \/>\n  &#8211; \u0110\u1ed9 d\u00e0y: theo t\u00f4n\/coil \u0111\u1ea7u v\u00e0o; \u0111\u1eb7t mua n\u00ean y\u00eau c\u1ea7u t\u1ed1i thi\u1ec3u th\u1ef1c \u0111o.<br \/>\n  &#8211; \u0110\u1ed9 th\u1eb3ng: kho\u1ea3ng 0,2% chi\u1ec1u d\u00e0i.<br \/>\n&#8211; B\u1ec1 m\u1eb7t:<br \/>\n  &#8211; No.1 (c\u00e1n n\u00f3ng), 2B (m\u1ecbn), HL\/No.4 (x\u01b0\u1edbc hairline), BA (b\u00f3ng), 8K (g\u01b0\u01a1ng). K\u1ebft c\u1ea5u c\u00f4ng nghi\u1ec7p \u01b0u ti\u00ean 2B\/HL cho b\u1ec1n x\u01b0\u1edbc \u2013 d\u1ec5 v\u1ec7 sinh.<\/p>\n<h2 id=\"toc-3-quy-trinh-7-buoc-chon-quy-cach-cho-khungket-cau\">Quy tr\u00ecnh 7 b\u01b0\u1edbc ch\u1ecdn quy c\u00e1ch cho khung\/k\u1ebft c\u1ea5u<\/h2>\n<h3>B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh t\u1ea3i tr\u1ecdng v\u00e0 s\u01a1 \u0111\u1ed3 ch\u1ecbu l\u1ef1c<\/h3>\n<p>&#8211; D\u1ea7m: t\u1ea3i ph\u00e2n b\u1ed1 \u0111\u1ec1u (w, kN\/m) ho\u1eb7c t\u1ea3i t\u1eadp trung (P, kN); nh\u1ecbp L (m).<br \/>\n&#8211; C\u1ed9t: l\u1ef1c n\u00e9n N (kN), chi\u1ec1u cao t\u1ef1 do L, \u0111i\u1ec1u ki\u1ec7n li\u00ean k\u1ebft (h\u1ec7 s\u1ed1 chi\u1ec1u d\u00e0i K).<br \/>\n&#8211; T\u1ea3i gi\u00f3\/\u0111\u1ed9ng: x\u00e9t th\u00eam rung, va \u0111\u1eadp n\u1ebfu c\u00f3 (khung m\u00e1y, bi\u1ec3n b\u1ea3ng).<\/p>\n<h3>B\u01b0\u1edbc 2: Ch\u1ecdn d\u1ea1ng ti\u1ebft di\u1ec7n<\/h3>\n<p>&#8211; C\u1ed9t\/gi\u1eb1ng: h\u1ed9p vu\u00f4ng 40&#215;40, 50&#215;50, 60&#215;60\u2026 \u0111\u1ed9 d\u00e0y 1,5\u20133,0 mm t\u00f9y t\u1ea3i \u2013 chi\u1ec1u cao.<br \/>\n&#8211; D\u1ea7m\/x\u00e0: h\u1ed9p ch\u1eef nh\u1eadt 30&#215;60, 40&#215;80, 50&#215;100\u2026 \u0111\u1eb7t c\u1ea1nh l\u1edbn theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng \u0111\u1ec3 t\u1ed1i \u01b0u \u0111\u1ed9 c\u1ee9ng u\u1ed1n v\u00e0 \u0111\u1ed9 v\u00f5ng.<\/p>\n<h3>B\u01b0\u1edbc 3: Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng \u2013 ng\u00e2n s\u00e1ch<\/h3>\n<p>&#8211; Trong nh\u00e0 kh\u00f4: 201 ho\u1eb7c 304 (\u01b0u ti\u00ean 304 cho tu\u1ed5i th\u1ecd d\u00e0i).<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi: 304\/304L; ven bi\u1ec3n\/h\u00f3a ch\u1ea5t: 316\/316L.<\/p>\n<h3>B\u01b0\u1edbc 4: \u01af\u1edbc t\u00ednh s\u01a1 b\u1ed9 k\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y<\/h3>\n<p>&#8211; Quy t\u1eafc nhanh cho d\u1ea7m nh\u1eb9: t t\u1ed1i thi\u1ec3u \u2248 H\/60 \u0111\u1ebfn H\/80 (H: chi\u1ec1u cao h\u1ed9p, mm) nh\u01b0ng kh\u00f4ng d\u01b0\u1edbi 1,2\u20131,5 mm \u0111\u1ec3 tr\u00e1nh c\u1ee5c b\u1ed9 bi\u1ebfn d\u1ea1ng khi h\u00e0n\/k\u1eb9p.<br \/>\n&#8211; Nh\u1ecbp L 2\u20133 m, t\u1ea3i nh\u1eb9 \u2013 trung b\u00ecnh: RHS 40x80x1,5 ho\u1eb7c 50x100x1,5\u20132,0 th\u01b0\u1eddng \u0111\u00e1p \u1ee9ng.<\/p>\n<h3>B\u01b0\u1edbc 5: Ki\u1ec3m tra b\u1ec1n u\u1ed1n v\u00e0 \u0111\u1ed9 v\u00f5ng (d\u1ea7m)<\/h3>\n<p>&#8211; M\u00f4 men l\u1edbn nh\u1ea5t (d\u1ea7m \u0111\u01a1n gi\u1ea3n, t\u1ea3i \u0111\u1ec1u): M = wL\u00b2\/8.<br \/>\n&#8211; \u1ee8ng su\u1ea5t u\u1ed1n: \u03c3 = M\/Z \u2264 \u03c3_allow (v\u1edbi \u03c3_allow \u2248 0,6\u00b7Rp0.2).<br \/>\n&#8211; \u0110\u1ed9 v\u00f5ng t\u1ed1i \u0111a: \u0394 = 5wL\u2074\/(384EI); gi\u1edbi h\u1ea1n g\u1ee3i \u00fd \u0394 \u2264 L\/250 \u0111\u1ebfn L\/300 cho k\u1ebft c\u1ea5u nh\u1eb9.<\/p>\n<h3>B\u01b0\u1edbc 6: Ki\u1ec3m tra \u1ed5n \u0111\u1ecbnh (c\u1ed9t n\u00e9n)<\/h3>\n<p>&#8211; T\u1ea3i t\u1edbi h\u1ea1n Euler: Pcr = \u03c0\u00b2\u00b7E\u00b7I \/ (K\u00b7L)\u00b2. Ch\u1ecdn N l\u00e0m vi\u1ec7c \u2264 (0,4\u20130,6)\u00b7Pcr t\u00f9y h\u1ec7 s\u1ed1 an to\u00e0n.<br \/>\n&#8211; \u0110\u1ed9 m\u1ea3nh KL\/r \u2264 150\u2013180 cho k\u1ebft c\u1ea5u nh\u1eb9; gi\u1ea3m L t\u1ef1 do b\u1eb1ng gi\u1eb1ng\/tr\u1ee5 ph\u1ee5 khi c\u1ea7n.<\/p>\n<h3>B\u01b0\u1edbc 7: Xem x\u00e9t li\u00ean k\u1ebft, h\u00e0n v\u00e0 \u0103n m\u00f2n<\/h3>\n<p>&#8211; D\u00f9ng \u1ed1c inox A2\/A4 \u0111\u1ed3ng b\u1ed9; l\u00f3t c\u00e1ch ly khi ti\u1ebfp x\u00fac th\u00e9p \u0111en \u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a.<br \/>\n&#8211; H\u00e0n TIG\/MIG v\u1edbi d\u00e2y 308L (cho 304\/201), 316L (cho 316); t\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a theo ASTM A380\/A967.<\/p>\n<h2 id=\"toc-4-tinh-nhanh-voi-vi-du-thuc-te\">T\u00ednh nhanh v\u1edbi v\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/h2>\n<h3>V\u00ed d\u1ee5 1: D\u1ea7m m\u00e1i che nh\u1ecbp 2,5 m, t\u1ea3i \u0111\u1ec1u 0,6 kN\/m, inox 304<\/h3>\n<p>&#8211; D\u1eef li\u1ec7u: L = 2,5 m; w = 0,6 kN\/m; Rp0.2(304) \u2248 205 MPa; E = 193 GPa.<br \/>\n&#8211; M_max = wL\u00b2\/8 = 0,6\u00d72,5\u00b2\/8 = 0,469 kN\u00b7m.<br \/>\n&#8211; Ph\u01b0\u01a1ng \u00e1n A: SHS 50x50x1,5 mm<br \/>\n  &#8211; I \u2248 114.000 mm\u2074; Z \u2248 4.568 mm\u00b3; \u03c3_allow \u2248 0,6\u00d7205 = 123 MPa.<br \/>\n  &#8211; M_allow = \u03c3_allow\u00b7Z \u2248 0,562 kN\u00b7m (\u0111\u1ea1t b\u1ec1n), nh\u01b0ng \u0394 \u2248 13,8 mm > L\/250 = 10 mm (kh\u00f4ng \u0111\u1ea1t v\u00f5ng).<br \/>\n&#8211; Ph\u01b0\u01a1ng \u00e1n B: RHS 40x80x1,5 mm (\u0111\u1eb7t 80 mm theo ph\u01b0\u01a1ng \u0111\u1ee9ng)<br \/>\n  &#8211; I \u2248 299.000 mm\u2074; Z \u2248 7.476 mm\u00b3.<br \/>\n  &#8211; M_allow \u2248 0,92 kN\u00b7m (\u0111\u1ea1t b\u1ec1n) v\u00e0 \u0394 \u2248 5,3 mm < 10 mm (\u0111\u1ea1t v\u00f5ng).\n- K\u1ebft lu\u1eadn: RHS 40x80x1,5 (304) l\u00e0 l\u1ef1a ch\u1ecdn kinh t\u1ebf v\u00e0 \u0111\u1ea1t y\u00eau c\u1ea7u.\n\n\n\n<h3>V\u00ed d\u1ee5 2: C\u1ed9t cao 3,0 m ch\u1ecbu n\u00e9n N = 10 kN, inox 304, \u0111\u1ea7u c\u1ed9t kh\u1edbp (K=1)<\/h3>\n<p>&#8211; Ch\u1ecdn s\u01a1 b\u1ed9: SHS 50x50x2,0 mm.<br \/>\n&#8211; I \u2248 147.700 mm\u2074; A \u2248 384 mm\u00b2; r = \u221a(I\/A) \u2248 19,6 mm; KL\/r \u2248 153.<br \/>\n&#8211; Pcr = \u03c0\u00b2\u00b7E\u00b7I\/L\u00b2 \u2248 31 kN. L\u1ea5y h\u1ec7 s\u1ed1 an to\u00e0n \u2248 2 \u2192 N cho ph\u00e9p ~15 kN > 10 kN.<br \/>\n&#8211; K\u1ebft lu\u1eadn: SHS 50x50x2,0 (304) s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c. C\u00f3 th\u1ec3 gi\u1ea3m rung b\u1eb1ng b\u1ea3n m\u00e3 \u2013 gi\u1eb1ng trung gian.<\/p>\n<h2 id=\"toc-5-bang-goi-y-nhanh-theo-ung-dung-pho-bien\">B\u1ea3ng g\u1ee3i \u00fd nhanh theo \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/h2>\n<p>L\u01b0u \u00fd: gi\u00e1 tr\u1ecb tham kh\u1ea3o cho t\u1ea3i nh\u1eb9\u2013trung b\u00ecnh; c\u1ea7n t\u00ednh ki\u1ec3m tra khi \u0111i\u1ec1u ki\u1ec7n kh\u00e1c bi\u1ec7t.<br \/>\n&#8211; Khung c\u1eeda, v\u00e1ch ng\u0103n trong nh\u00e0: 201\/304, SHS 30x30x1,2\u20131,5; khung bi\u00ean c\u00f3 th\u1ec3 d\u00f9ng RHS 30x60x1,2 cho \u0111\u1ed9 c\u1ee9ng t\u1ed1t h\u01a1n.<br \/>\n&#8211; Lan can, tay v\u1ecbn: 304, SHS 40x40x1,2\u20131,5 (tr\u1ee5); \u0111\u00e0 ngang RHS 30x60x1,2.<br \/>\n&#8211; M\u00e1i che d\u00e2n d\u1ee5ng nh\u1ecbp 2\u20133 m: d\u1ea7m RHS 40x80x1,5\u20132,0; x\u00e0 ph\u1ee5 RHS 30x60x1,2\u20131,5; c\u1ed9t SHS 50x50x2,0.<br \/>\n&#8211; Khung bi\u1ec3n qu\u1ea3ng c\u00e1o nh\u1ecf (\u22641,5\u00d72,0 m): RHS 30x60x1,2; tr\u1ee5 SHS 40x40x1,5.<br \/>\n&#8211; K\u1ec7 t\u1ea3i trung b\u00ecnh (nh\u1ecbp 1,0\u20131,5 m): d\u1ea7m ngang RHS 40x80x1,5; thanh gi\u1eb1ng SHS 30x30x1,2.<br \/>\n&#8211; B\u1ec7 m\u00e1y, khung thi\u1ebft b\u1ecb: RHS 50x100x2,0 ho\u1eb7c 60x120x2,0; n\u1ebfu rung \u0111\u1ed9ng li\u00ean t\u1ee5c, t\u0103ng d\u00e0y l\u00ean 2,5\u20133,0 ho\u1eb7c b\u1ed5 sung g\u00e2n.<\/p>\n<h2 id=\"toc-6-gia-cong-lap-dung-de-giu-ben-va-dep\">Gia c\u00f4ng, l\u1eafp d\u1ef1ng \u0111\u1ec3 \u201cgi\u1eef b\u1ec1n v\u00e0 \u0111\u1eb9p\u201d<\/h2>\n<p>&#8211; C\u1eaft: l\u01b0\u1ee1i c\u01b0a h\u1ee3p kim TCT; v\u1edbi t \u2265 2 mm c\u00f3 th\u1ec3 plasma\/oxy-gas nh\u01b0ng c\u1ea7n x\u1eed l\u00fd nhi\u1ec7t m\u00e0u sau c\u1eaft.<br \/>\n&#8211; H\u00e0n: TIG xung cho t m\u1ecfng; MIG v\u1edbi kh\u00ed tr\u1ed9n Ar + 1\u20132% O\u2082\/CO\u2082; d\u00e2y 308L (cho 201\/304), 316L (cho 316).<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n: m\u00e0i \u0111\u1ec1u h\u01b0\u1edbng x\u01b0\u1edbc HL; t\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a b\u1eb1ng dung d\u1ecbch \u0111\u1ea1t ASTM A380\/A967; r\u1eeda s\u1ea1ch, trung h\u00f2a.<br \/>\n&#8211; L\u1eafp d\u1ef1ng: n\u00fat li\u00ean k\u1ebft d\u00f9ng b\u1ea3n m\u00e3 \u0111\u1ee7 b\u1ec1 d\u00e0y; ch\u1eeba l\u1ed7 tho\u00e1t \u1ea9m trong ti\u1ebft di\u1ec7n k\u00edn; d\u00f9ng \u0111\u1ec7m c\u00e1ch ly khi b\u1eaft bu-l\u00f4ng v\u00e0o th\u00e9p carbon\/nh\u00f4m.<\/p>\n<h2 id=\"toc-7-kiem-soat-chat-luong-va-loi-thuong-gap\">Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 l\u1ed7i th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; Ki\u1ec3m tra v\u1eadt li\u1ec7u:<br \/>\n  &#8211; Ch\u1ee9ng ch\u1ec9 MTC\/Heat No., th\u00e0nh ph\u1ea7n h\u00f3a theo EN 10088; ki\u1ec3m tra nhanh b\u1eb1ng PMI\/magnet (201 c\u00f3 th\u1ec3 h\u01a1i nhi\u1ec5m t\u1eeb sau gia c\u00f4ng).<br \/>\n  &#8211; \u0110o \u0111\u1ed9 d\u00e0y th\u1ef1c t\u1ebf; nhi\u1ec1u coil m\u1ecfng d\u01b0\u1edbi danh ngh\u0129a g\u00e2y v\u00f5ng l\u1edbn \u2013 b\u1eb9p khi k\u1eb9p.<br \/>\n&#8211; Dung sai \u2013 th\u1eb3ng: ki\u1ec3m tay th\u01b0\u1edbc 2 m; cong v\u00eanh v\u01b0\u1ee3t 0,2% chi\u1ec1u d\u00e0i n\u00ean lo\u1ea1i.<br \/>\n&#8211; M\u1ed1i h\u00e0n: kh\u00f4ng c\u00f2n m\u00e0u nhi\u1ec7t\/x\u1ec9; b\u1ec1 m\u1eb7t s\u1ea1ch, \u0111\u1ed9 x\u01b0\u1edbc \u0111\u1ed3ng nh\u1ea5t.<br \/>\n&#8211; L\u1ed7i th\u01b0\u1eddng g\u1eb7p:<br \/>\n  &#8211; Ch\u1ecdn 201 cho ngo\u00e0i tr\u1eddi ven bi\u1ec3n \u2192 \u1ed1 v\u00e0ng, r\u1ed7 pitting s\u1edbm.<br \/>\n  &#8211; Ch\u1ecdn ti\u1ebft di\u1ec7n \u201c\u0111\u1eb9p\u201d m\u00e0 kh\u00f4ng \u0111\u1ee7 \u0111\u1ed9 c\u1ee9ng theo ph\u01b0\u01a1ng l\u00e0m vi\u1ec7c \u2192 v\u00f5ng\/rung l\u1edbn.<br \/>\n  &#8211; Mua d\u00e0y danh ngh\u0129a 1,2 mm nh\u01b0ng th\u1ef1c \u0111o ~1,0 mm \u2192 gi\u1ea3m 15\u201320% \u0111\u1ed9 c\u1ee9ng.<\/p>\n<h2 id=\"toc-8-toi-uu-chi-phi-ma-van-an-toan\">T\u1ed1i \u01b0u chi ph\u00ed m\u00e0 v\u1eabn an to\u00e0n<\/h2>\n<p>&#8211; T\u1eadp trung v\u00e0o chi\u1ec1u cao ti\u1ebft di\u1ec7n cho d\u1ea7m (RHS), kh\u00f4ng ch\u1ec9 t\u0103ng \u0111\u1ed9 d\u00e0y. T\u0103ng H t\u1eeb 60 l\u00ean 80 mm gi\u00fap gi\u1ea3m v\u00f5ng nhi\u1ec1u h\u01a1n so v\u1edbi t\u0103ng d\u00e0y 0,3\u20130,5 mm.<br \/>\n&#8211; Trong m\u00f4i tr\u01b0\u1eddng nh\u1eb9, d\u00f9ng 201 cho ph\u1ea7n ph\u1ee5; ph\u1ea7n ch\u00ednh ngo\u00e0i tr\u1eddi d\u00f9ng 304\/316.<br \/>\n&#8211; V\u1edbi t\u1ea3i l\u1edbn: c\u00e2n nh\u1eafc l\u00f5i th\u00e9p carbon h\u1ed9p k\u1ebft c\u1ea5u (CT3) + \u1ed1p inox cho b\u1ec1 m\u1eb7t; gi\u1ea3i ph\u00e1p n\u00e0y ph\u1ed5 bi\u1ebfn khi c\u1ea7n \u0111\u1ed9 d\u00e0y >3 mm nh\u01b0ng v\u1eabn c\u1ea7n th\u1ea9m m\u1ef9 inox.<br \/>\n&#8211; \u0110\u1eb7t mua quy c\u00e1ch ph\u1ed5 bi\u1ebfn (30&#215;60, 40&#215;80, 50&#215;100) \u0111\u1ec3 t\u1ed1i \u01b0u t\u1ed3n kho \u2013 gi\u00e1; y\u00eau c\u1ea7u d\u00e0y th\u1ef1c \u2265 danh ngh\u0129a.<\/p>\n<h2 id=\"toc-9-kich-thuoc-do-day-san-co-tai-thi-truong-ha-noi\">K\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y s\u1eb5n c\u00f3 t\u1ea1i th\u1ecb tr\u01b0\u1eddng H\u00e0 N\u1ed9i<\/h2>\n<p>&#8211; H\u1ed9p vu\u00f4ng: 20&#215;20, 25&#215;25, 30&#215;30, 40&#215;40, 50&#215;50, 60&#215;60, 80&#215;80; d\u00e0y 0,6\u20132,0 mm (\u22652,5 mm \u0111\u1eb7t tr\u01b0\u1edbc).<br \/>\n&#8211; H\u1ed9p ch\u1eef nh\u1eadt: 20&#215;40, 25&#215;50, 30&#215;60, 40&#215;80, 50&#215;100, 60&#215;120; d\u00e0y 0,6\u20132,0 mm (\u22652,5 mm \u0111\u1eb7t tr\u01b0\u1edbc).<br \/>\n&#8211; B\u1ec1 m\u1eb7t: 2B, HL\/No.4, g\u01b0\u01a1ng 8K (m\u1ed9t s\u1ed1 m\u00e3).<br \/>\nL\u01b0u \u00fd: t\u1ed3n kho thay \u0111\u1ed5i theo th\u1eddi \u0111i\u1ec3m; li\u00ean h\u1ec7 \u0111\u1ec3 ki\u1ec3m tra nhanh quy c\u00e1ch c\u1ee5 th\u1ec3.<\/p>\n<h2 id=\"toc-10-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/h2>\n<p>&#8211; ASTM A554 \u2013 Standard Specification for Welded Stainless Steel Mechanical Tubing: https:\/\/www.astm.org\/a0554<br \/>\n&#8211; Euro Inox, Design Manual for Structural Stainless Steel (SCI Publication P414): https:\/\/www.steel-stainless.org<br \/>\n&#8211; Outokumpu Stainless Steel Handbook (thu\u1ed9c t\u00ednh v\u1eadt li\u1ec7u): https:\/\/www.outokumpu.com<br \/>\n&#8211; ASTM A380\/A967 \u2013 Cleaning, Descaling, and Passivation of Stainless Steel: https:\/\/www.astm.org<\/p>\n<h2 id=\"toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Ch\u1ecdn \u0111\u00fang quy c\u00e1ch inox h\u1ed9p cho khung\/k\u1ebft c\u1ea5u d\u1ef1a tr\u00ean 3 tr\u1ee5 c\u1ed9t: m\u00e1c th\u00e9p ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng (201\/304\/316), ti\u1ebft di\u1ec7n t\u01b0\u01a1ng x\u1ee9ng v\u1edbi s\u01a1 \u0111\u1ed3 ch\u1ecbu l\u1ef1c (RHS cho d\u1ea7m, SHS cho c\u1ed9t\/gi\u1eb1ng), v\u00e0 ki\u1ec3m tra b\u1ec1n \u2013 \u0111\u1ed9 v\u00f5ng \u2013 \u1ed5n \u0111\u1ecbnh b\u1eb1ng t\u00ednh nhanh.<br \/>\n&#8211; Trong \u0111a s\u1ed1 \u1ee9ng d\u1ee5ng nh\u1eb9\u2013trung b\u00ecnh: RHS 40x80x1,5 (304) l\u00e0 \u201c\u0111i\u1ec3m ng\u1ecdt\u201d cho d\u1ea7m nh\u1ecbp 2\u20133 m; c\u1ed9t d\u00f9ng SHS 50x50x2,0. V\u1edbi m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n, chuy\u1ec3n sang 316\/316L.<br \/>\n&#8211; Lu\u00f4n ki\u1ec3m tra \u0111\u1ed9 d\u00e0y th\u1ef1c t\u1ebf, x\u1eed l\u00fd b\u1ec1 m\u1eb7t sau h\u00e0n theo chu\u1ea9n, v\u00e0 thi\u1ebft k\u1ebf li\u00ean k\u1ebft ch\u1eafc ch\u1eafn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd \u2013 th\u1ea9m m\u1ef9.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n chi ti\u1ebft b\u00e0i to\u00e1n th\u1ef1c t\u1ebf, b\u00f3c t\u00e1ch kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh. 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, k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 d\u00e0y inox h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt cho khung s\u01b0\u1eddn, k\u1ebft c\u1ea5u: ti\u00eau chu\u1ea9n ASTM A554, t\u00ednh t\u1ea3i, v\u00ed d\u1ee5 th\u1ef1c t\u1ebf, b\u1ea3ng g\u1ee3i \u00fd nhanh.<\/p>\n","protected":false},"author":7,"featured_media":1053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2108","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\/2108","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=2108"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2108\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1053"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}