{"id":1182,"date":"2025-10-14T00:33:48","date_gmt":"2025-10-13T17:33:48","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/bang-so-sanh-da-tieu-chi-inox-nhom-sat-dong-de-hieu-cho-moi-nguoi\/"},"modified":"2025-10-14T00:33:48","modified_gmt":"2025-10-13T17:33:48","slug":"bang-so-sanh-da-tieu-chi-inox-nhom-sat-dong-de-hieu-cho-moi-nguoi","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/bang-so-sanh-da-tieu-chi-inox-nhom-sat-dong-de-hieu-cho-moi-nguoi\/","title":{"rendered":"B\u1ea3ng so s\u00e1nh \u0111a ti\u00eau ch\u00ed Inox, Nh\u00f4m, S\u1eaft, \u0110\u1ed3ng d\u1ec5 hi\u1ec3u cho m\u1ecdi ng\u01b0\u1eddi"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-khung-so-sanh-nhanh-moi-vat-lieu-manh-o-dau\">Khung so s\u00e1nh nhanh: m\u1ed7i v\u1eadt li\u1ec7u m\u1ea1nh \u1edf \u0111\u00e2u?<\/a><\/li>\n<li><a href=\"#toc-1-so-lieu-dien-hinh-de-hinh-dung-nhanh\">S\u1ed1 li\u1ec7u \u0111i\u1ec3n h\u00ecnh (\u0111\u1ec3 h\u00ecnh dung nhanh)<\/a><\/li>\n<li><a href=\"#toc-2-so-sanh-theo-tieu-chi-ky-thuat-cot-loi\">So s\u00e1nh theo ti\u00eau ch\u00ed k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i<\/a><\/li>\n<li><a href=\"#toc-3-chi-phi-dau-tu-ban-dau-va-chi-phi-vong-doi\">Chi ph\u00ed: \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi<\/a><\/li>\n<li><a href=\"#toc-4-bai-toan-nhanh-can-nang-tam-12-m-day-2-mm\">B\u00e0i to\u00e1n nhanh: c\u00e2n n\u1eb7ng t\u1ea5m 1\u00d72 m, d\u00e0y 2 mm<\/a><\/li>\n<li><a href=\"#toc-5-chon-nhanh-theo-tinh-huong-thuc-te\">Ch\u1ecdn nhanh theo t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-6-sai-lam-pho-bien-can-tranh\">Sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-7-goi-y-mac-vat-lieu-thong-dung-o-viet-nam\">G\u1ee3i \u00fd m\u00e1c v\u1eadt li\u1ec7u th\u00f4ng d\u1ee5ng \u1edf Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-8-cach-ra-quyet-dinh-5-cau-hoi-then-chot\">C\u00e1ch ra quy\u1ebft \u0111\u1ecbnh: 5 c\u00e2u h\u1ecfi then ch\u1ed1t<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>So s\u00e1nh \u0111a ti\u00eau ch\u00ed gi\u1eefa Inox (th\u00e9p kh\u00f4ng g\u1ec9), Nh\u00f4m, S\u1eaft\/Th\u00e9p carbon v\u00e0 \u0110\u1ed3ng l\u00e0 b\u01b0\u1edbc kh\u1edfi \u0111\u1ea7u quan tr\u1ecdng khi quy\u1ebft \u0111\u1ecbnh v\u1eadt li\u1ec7u cho c\u00f4ng tr\u00ecnh, m\u00e1y m\u00f3c hay x\u01b0\u1edfng s\u1ea3n xu\u1ea5t. B\u00e0i vi\u1ebft n\u00e0y c\u00f4 \u0111\u1ecdng nh\u1eefng kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i, \u0111\u01b0a s\u1ed1 li\u1ec7u \u0111i\u1ec3n h\u00ecnh v\u00e0 g\u1ee3i \u00fd ch\u1ecdn v\u1eadt li\u1ec7u theo t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf, gi\u00fap ngay c\u1ea3 ng\u01b0\u1eddi kh\u00f4ng chuy\u00ean c\u0169ng c\u00f3 th\u1ec3 t\u1ef1 tin ra quy\u1ebft \u0111\u1ecbnh.<\/p>\n<h2 id=\"toc-0-khung-so-sanh-nhanh-moi-vat-lieu-manh-o-dau\">Khung so s\u00e1nh nhanh: m\u1ed7i v\u1eadt li\u1ec7u m\u1ea1nh \u1edf \u0111\u00e2u?<\/h2>\n<p>&#8211; Inox (th\u01b0\u1eddng d\u00f9ng: 201, 304, 316)<br \/>\n  &#8211; M\u1ea1nh: ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i (\u0111\u1eb7c bi\u1ec7t 304\/316), b\u1ec1n, s\u1ea1ch, th\u1ea9m m\u1ef9, an to\u00e0n th\u1ef1c ph\u1ea9m, nhi\u1ec7t \u0111\u1ed9 cao.<br \/>\n  &#8211; Y\u1ebfu: n\u1eb7ng, d\u1eabn nhi\u1ec7t\/\u0111i\u1ec7n k\u00e9m, gia c\u00f4ng c\u1eaft g\u1ecdt kh\u00f3 h\u01a1n, gi\u00e1 cao h\u01a1n th\u00e9p carbon.<br \/>\n&#8211; Nh\u00f4m (5052, 6061\u2026)<br \/>\n  &#8211; M\u1ea1nh: nh\u1eb9, d\u1eabn nhi\u1ec7t t\u1ed1t, ch\u1ed1ng \u0103n m\u00f2n kh\u00ed quy\u1ec3n t\u1ed1t, d\u1ec5 gia c\u00f4ng, b\u1ec1 m\u1eb7t anodize \u0111\u1eb9p.<br \/>\n  &#8211; Y\u1ebfu: \u0111\u1ed9 c\u1ee9ng v\u1eefng th\u1ea5p (v\u00f5ng nhi\u1ec1u), ch\u1ecbu m\u00e0i m\u00f2n k\u00e9m, nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c h\u1ea1n ch\u1ebf (~<150\u00b0C).\n- S\u1eaft\/Th\u00e9p carbon (Q235\/SS400, CT3\u2026)\n  - M\u1ea1nh: r\u1ebb, c\u1ee9ng v\u1eefng cao, d\u1ec5 h\u00e0n\/c\u1eaft\/gia c\u00f4ng, ch\u1ecbu l\u1ef1c t\u1ed1t.\n  - Y\u1ebfu: r\u1ea5t d\u1ec5 r\u1ec9, c\u1ea7n s\u01a1n\/m\u1ea1; n\u1eb7ng; kh\u00f4ng d\u00f9ng cho m\u00f4i tr\u01b0\u1eddng \u1ea9m\/\u0103n m\u00f2n n\u1ebfu kh\u00f4ng b\u1ea3o v\u1ec7.\n- \u0110\u1ed3ng (Cu-ETP C1100\u2026)\n  - M\u1ea1nh: d\u1eabn \u0111i\u1ec7n v\u00e0 d\u1eabn nhi\u1ec7t c\u1ef1c t\u1ed1t, kh\u00e1ng \u0103n m\u00f2n n\u01b0\u1edbc t\u1ed1t, kh\u00e1ng khu\u1ea9n, gia c\u00f4ng t\u1ed1t.\n  - Y\u1ebfu: \u0111\u1eaft, n\u1eb7ng, m\u1ec1m, c\u00f3 th\u1ec3 b\u1ecb x\u1ec9n m\u00e0u; nh\u1ea1y v\u1edbi m\u00f4i tr\u01b0\u1eddng ch\u1ee9a amoniac.\n\n\n\n<h2 id=\"toc-1-so-lieu-dien-hinh-de-hinh-dung-nhanh\">S\u1ed1 li\u1ec7u \u0111i\u1ec3n h\u00ecnh (\u0111\u1ec3 h\u00ecnh dung nhanh)<\/h2>\n<p>&#8211; Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang (g\/cm\u00b3): Inox ~7.9 | Nh\u00f4m ~2.7 | Th\u00e9p ~7.85 | \u0110\u1ed3ng ~8.96<br \/>\n&#8211; M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i E (GPa): Inox ~193 | Nh\u00f4m ~69 | Th\u00e9p ~200 | \u0110\u1ed3ng ~110\u2013128<br \/>\n&#8211; \u0110\u1ed9 d\u1eabn nhi\u1ec7t (W\/m\u00b7K): Inox ~15 | Nh\u00f4m ~205 | Th\u00e9p ~50 | \u0110\u1ed3ng ~390\u2013400<br \/>\n&#8211; \u0110\u1ed9 d\u1eabn \u0111i\u1ec7n (MS\/m): Inox ~1\u20131.4 | Nh\u00f4m ~35\u201338 | Th\u00e9p ~6 | \u0110\u1ed3ng ~58<br \/>\n&#8211; Nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y (\u00b0C): Inox ~1400\u20131450 | Nh\u00f4m ~660 | Th\u00e9p ~1450\u20131520 | \u0110\u1ed3ng ~1085<br \/>\n&#8211; Gi\u1edbi h\u1ea1n ch\u1ea3y \u0111i\u1ec3n h\u00ecnh (MPa):<br \/>\n  &#8211; Inox 304 ~210; b\u1ec1n k\u00e9o ~520\u2013750<br \/>\n  &#8211; Nh\u00f4m 6061-T6 ~240; b\u1ec1n k\u00e9o ~290<br \/>\n  &#8211; Th\u00e9p Q235 ~235; b\u1ec1n k\u00e9o ~370\u2013500<br \/>\n  &#8211; \u0110\u1ed3ng 99.9% ~70\u2013200 (t\u00f9y tr\u1ea1ng th\u00e1i \u1ee7\/c\u00e1n)<\/p>\n<p>L\u01b0u \u00fd: T\u00ednh ch\u1ea5t thay \u0111\u1ed5i theo m\u00e1c\/\u0111\u1ed9 c\u1ee9ng\/\u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd; s\u1ed1 li\u1ec7u tr\u00ean \u0111\u1ec3 tham chi\u1ebfu nhanh.<\/p>\n<h2 id=\"toc-2-so-sanh-theo-tieu-chi-ky-thuat-cot-loi\">So s\u00e1nh theo ti\u00eau ch\u00ed k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i<\/h2>\n<h3>1) \u0110\u1ed9 b\u1ec1n, \u0111\u1ed9 c\u1ee9ng v\u1eefng v\u00e0 bi\u1ebfn d\u1ea1ng<\/h3>\n<p>&#8211; Ch\u1ecbu l\u1ef1c t\u0129nh:<br \/>\n  &#8211; Th\u00e9p carbon v\u00e0 Inox th\u01b0\u1eddng cho \u0111\u1ed9 b\u1ec1n k\u00e9o cao nh\u1ea5t; d\u00f9ng t\u1ed1t cho k\u1ebft c\u1ea5u, khung, b\u1ec7 m\u00e1y.<br \/>\n  &#8211; Nh\u00f4m b\u1ec1n k\u00e9o th\u1ea5p h\u01a1n nh\u01b0ng \u01b0u th\u1ebf v\u1ec1 tr\u1ecdng l\u01b0\u1ee3ng\/\u0111\u1ed9 b\u1ec1n ri\u00eang (strength-to-weight).<br \/>\n&#8211; \u0110\u1ed9 c\u1ee9ng v\u1eefng (v\u00f5ng):<br \/>\n  &#8211; Ph\u1ee5 thu\u1ed9c m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i E. Th\u00e9p\/Inox (~200 GPa) c\u1ee9ng v\u1eefng h\u01a1n Nh\u00f4m (~69 GPa) v\u00e0 \u0110\u1ed3ng (~120 GPa).<br \/>\n  &#8211; V\u1edbi c\u00f9ng k\u00edch th\u01b0\u1edbc ti\u1ebft di\u1ec7n, d\u1ea7m nh\u00f4m v\u00f5ng x\u1ea5p x\u1ec9 g\u1ea5p ~3 l\u1ea7n so v\u1edbi d\u1ea7m th\u00e9p.<br \/>\n&#8211; M\u00e0i m\u00f2n\/b\u1ec1 m\u1eb7t:<br \/>\n  &#8211; Inox c\u1ee9ng h\u01a1n nh\u00f4m, ch\u1ed1ng x\u01b0\u1edbc\/va \u0111\u1eadp t\u1ed1t h\u01a1n; th\u00e9p c\u00f3 th\u1ec3 t\u00f4i c\u1ee9ng; nh\u00f4m c\u1ea7n ph\u1ee7 c\u1ee9ng (anodize, hardcoat) cho c\u01a1 c\u1ea5u tr\u01b0\u1ee3t.<\/p>\n<h3>2) Tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 t\u1ed1i \u01b0u h\u00f3a kh\u1ed1i l\u01b0\u1ee3ng<\/h3>\n<p>&#8211; Nh\u00f4m nh\u1eb9 b\u1eb1ng ~1\/3 th\u00e9p\/INOX \u2192 l\u1ee3i th\u1ebf cho k\u1ebft c\u1ea5u c\u1ea7n di \u0111\u1ed9ng, gi\u1ea3m t\u1ea3i, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u1eadn h\u00e0nh.<br \/>\n&#8211; Inox v\u00e0 th\u00e9p n\u1eb7ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng; \u0111\u1ed3ng n\u1eb7ng nh\u1ea5t.<br \/>\n&#8211; Quy t\u1eafc nhanh: N\u1ebfu gi\u1edbi h\u1ea1n b\u1edfi kh\u1ed1i l\u01b0\u1ee3ng, ngh\u0129 \u0111\u1ebfn Nh\u00f4m; n\u1ebfu gi\u1edbi h\u1ea1n b\u1edfi \u0111\u1ed9 c\u1ee9ng v\u1eefng, ngh\u0129 \u0111\u1ebfn Th\u00e9p\/Inox.<\/p>\n<h3>3) Ch\u1ed1ng \u0103n m\u00f2n v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/h3>\n<p>&#8211; Inox:<br \/>\n  &#8211; 304: t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb\/\u1ea9m; 316: v\u01b0\u1ee3t tr\u1ed9i g\u1ea7n bi\u1ec3n\/n\u01b0\u1edbc m\u1eb7n\/ho\u00e1 ch\u1ea5t nh\u1eb9 nh\u1edd Mo.<br \/>\n  &#8211; Tr\u00e1nh clo \u0111\u1eadm \u0111\u1eb7c\/axit m\u1ea1nh; h\u1ea1n ch\u1ebf k\u1ebd h\u1edf \u1ea9m \u0111\u1ecdng.<br \/>\n&#8211; Nh\u00f4m:<br \/>\n  &#8211; T\u1ea1o m\u00e0ng oxit t\u1ef1 nhi\u00ean \u2192 \u1ed5n ngo\u00e0i tr\u1eddi; k\u00e9m b\u1ec1n trong m\u00f4i tr\u01b0\u1eddng ki\u1ec1m m\u1ea1nh, chloride n\u00f3ng, m\u00f4i tr\u01b0\u1eddng ma s\u00e1t m\u00e0i m\u00f2n.<br \/>\n&#8211; Th\u00e9p carbon:<br \/>\n  &#8211; \u0102n m\u00f2n nhanh n\u1ebfu kh\u00f4ng s\u01a1n\/m\u1ea1 k\u1ebdm\/nh\u00fang n\u00f3ng; y\u00eau c\u1ea7u b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; \u0110\u1ed3ng:<br \/>\n  &#8211; R\u1ea5t b\u1ec1n trong n\u01b0\u1edbc, kh\u00e1ng biofouling; tr\u00e1nh m\u00f4i tr\u01b0\u1eddng ch\u1ee9a amoniac\/sulfide (n\u1ee9t \u1ee9ng su\u1ea5t).<\/p>\n<h3>4) D\u1eabn nhi\u1ec7t, d\u1eabn \u0111i\u1ec7n<\/h3>\n<p>&#8211; Truy\u1ec1n nhi\u1ec7t:<br \/>\n  &#8211; \u0110\u1ed3ng > Nh\u00f4m >> Th\u00e9p > Inox. T\u1ea3n nhi\u1ec7t, \u1ed1ng trao \u0111\u1ed5i nhi\u1ec7t \u01b0u ti\u00ean \u0110\u1ed3ng\/Nh\u00f4m.<br \/>\n&#8211; D\u1eabn \u0111i\u1ec7n:<br \/>\n  &#8211; \u0110\u1ed3ng l\u00e0 chu\u1ea9n (100% IACS), Nh\u00f4m ~61% IACS; d\u00e2y d\u1eabn\/than \u0111\u1ee9ng d\u00f9ng Cu\/Al. Inox\/Th\u00e9p d\u00f9ng l\u00e0m k\u1ebft c\u1ea5u, kh\u00f4ng d\u00f9ng l\u00e0m d\u00e2y d\u1eabn.<\/p>\n<h3>5) Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c<\/h3>\n<p>&#8211; Inox\/Th\u00e9p: gi\u1eef c\u01a1 t\u00ednh t\u1ed1t \u1edf nhi\u1ec7t cao; \u1ee9ng d\u1ee5ng b\u1ebfp c\u00f4ng nghi\u1ec7p, \u1ed1ng kh\u00f3i, l\u00f2.<br \/>\n&#8211; Nh\u00f4m: suy gi\u1ea3m nhanh c\u01a1 t\u00ednh >120\u2013150\u00b0C; ch\u00fa \u00fd trong bu\u1ed3ng m\u00e1y n\u00f3ng.<br \/>\n&#8211; \u0110\u1ed3ng: t\u1ed1t \u1edf nhi\u1ec7t trung b\u00ecnh; oxy h\u00f3a b\u1ec1 m\u1eb7t \u1edf nhi\u1ec7t cao.<\/p>\n<h3>6) Gia c\u00f4ng: h\u00e0n, c\u1eaft, t\u1ea1o h\u00ecnh, gia c\u00f4ng c\u01a1<\/h3>\n<p>&#8211; H\u00e0n:<br \/>\n  &#8211; Th\u00e9p carbon: d\u1ec5 nh\u1ea5t (MMA, MIG, MAG).<br \/>\n  &#8211; Inox: t\u1ed1t (MIG\/TIG), c\u1ea7n ki\u1ec3m so\u00e1t bi\u1ebfn m\u00e0u, bi\u1ebfn d\u1ea1ng; ch\u1ecdn que\/d\u00e2y ph\u00f9 h\u1ee3p m\u00e1c.<br \/>\n  &#8211; Nh\u00f4m: MIG\/TIG t\u1ed1t nh\u01b0ng \u0111\u00f2i h\u1ecfi k\u1ef9 n\u0103ng, kh\u00ed b\u1ea3o v\u1ec7 s\u1ea1ch; c\u1ea7n m\u00e1y ph\u00f9 h\u1ee3p AC TIG cho m\u1ed1i h\u00e0n ch\u1ea5t l\u01b0\u1ee3ng.<br \/>\n  &#8211; \u0110\u1ed3ng: kh\u00f3 do d\u1eabn nhi\u1ec7t cao; c\u1ea7n nhi\u1ec7t \u0111\u1ea7u v\u00e0o l\u1edbn, ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng.<br \/>\n&#8211; C\u1eaft g\u1ecdt:<br \/>\n  &#8211; Nh\u00f4m: r\u1ea5t t\u1ed1t, t\u1ed1c \u0111\u1ed9 cao.<br \/>\n  &#8211; Th\u00e9p carbon: t\u1ed1t.<br \/>\n  &#8211; Inox austenitic (304\/316): \u201cd\u1ebbo d\u00ednh\u201d, kh\u00f3 h\u01a1n; c\u1ea7n dao s\u1eafc, t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p, dung d\u1ecbch tr\u01a1n ngu\u1ed9i t\u1ed1t.<br \/>\n  &#8211; \u0110\u1ed3ng: t\u1ed1t nh\u01b0ng c\u00f3 th\u1ec3 \u201cd\u00ednh dao\u201d n\u1ebfu th\u00f4ng s\u1ed1 kh\u00f4ng h\u1ee3p l\u00fd.<br \/>\n&#8211; T\u1ea1o h\u00ecnh:<br \/>\n  &#8211; Nh\u00f4m\/Th\u00e9p: d\u1ec5 c\u00e1n, d\u1eadp, u\u1ed1n.<br \/>\n  &#8211; Inox: u\u1ed1n\/d\u1eadp \u0111\u01b0\u1ee3c nh\u01b0ng c\u1ea7n l\u1ef1c l\u1edbn h\u01a1n; ch\u00fa \u00fd \u0111\u00e0n h\u1ed3i h\u1ed3i ph\u1ee5c.<\/p>\n<h3>7) Th\u1ea9m m\u1ef9, v\u1ec7 sinh, an to\u00e0n th\u1ef1c ph\u1ea9m v\u00e0 t\u1eeb t\u00ednh<\/h3>\n<p>&#8211; Inox 304\/316: s\u00e1ng, d\u1ec5 v\u1ec7 sinh, h\u1ee3p chu\u1ea9n th\u1ef1c ph\u1ea9m v\u00e0 y t\u1ebf, \u00edt b\u00e1m b\u1ea9n; 201 r\u1ebb h\u01a1n nh\u01b0ng ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n.<br \/>\n&#8211; Nh\u00f4m: b\u1ec1 m\u1eb7t anodize \u0111a m\u00e0u, \u0111\u1eb9p; d\u1ec5 x\u01b0\u1edbc h\u01a1n Inox.<br \/>\n&#8211; Th\u00e9p: c\u1ea7n s\u01a1n\/ph\u1ee7 \u0111\u1ec3 \u0111\u1eb9p v\u00e0 ch\u1ed1ng r\u1ec9.<br \/>\n&#8211; \u0110\u1ed3ng: m\u00e0u sang tr\u1ecdng, kh\u00e1ng khu\u1ea9n t\u1ef1 nhi\u00ean; b\u1ec1 m\u1eb7t s\u1ebd x\u1ec9n (patina).<br \/>\n&#8211; T\u1eeb t\u00ednh:<br \/>\n  &#8211; Th\u00e9p carbon: nhi\u1ec5m t\u1eeb.<br \/>\n  &#8211; Inox 304\/316: nh\u00ecn chung kh\u00f4ng nhi\u1ec5m t\u1eeb (c\u00f3 th\u1ec3 h\u01a1i nhi\u1ec5m sau c\u00e1n\/ngu\u1ed9i); 430 (ferritic) nhi\u1ec5m t\u1eeb.<br \/>\n  &#8211; Nh\u00f4m, \u0110\u1ed3ng: kh\u00f4ng nhi\u1ec5m t\u1eeb.<\/p>\n<h2 id=\"toc-3-chi-phi-dau-tu-ban-dau-va-chi-phi-vong-doi\">Chi ph\u00ed: \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi<\/h2>\n<p>&#8211; Th\u1ee9 t\u1ef1 chi ph\u00ed v\u1eadt li\u1ec7u theo kg (tham kh\u1ea3o th\u1ecb tr\u01b0\u1eddng, c\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed9ng):<br \/>\n  &#8211; R\u1ebb \u2192 \u0110\u1eaft: Th\u00e9p carbon < Nh\u00f4m \u2248 Inox 201 < Inox 304 < Inox 316 < \u0110\u1ed3ng.\n- L\u01b0u \u00fd quan tr\u1ecdng:\n  - T\u00ednh tr\u00ean \u201cchi ph\u00ed v\u00f2ng \u0111\u1eddi\u201d (LCC): chi ph\u00ed v\u1eadt li\u1ec7u + gia c\u00f4ng + v\u1eadn chuy\u1ec3n + l\u1eafp \u0111\u1eb7t + b\u1ea3o tr\u00ec + r\u1ee7i ro d\u1eebng m\u00e1y.\n  - Th\u00e9p r\u1ebb nh\u01b0ng t\u1ed1n s\u01a1n\/ph\u1ee7, b\u1ea3o tr\u00ec ch\u1ed1ng r\u1ec9; Inox \u0111\u1eaft h\u01a1n nh\u01b0ng h\u1ea7u nh\u01b0 \u201c\u0111\u1eb7t l\u00e0 qu\u00ean\u201d.\n  - Nh\u00f4m th\u01b0\u1eddng r\u1ebb h\u01a1n Inox 304 theo kg, nh\u01b0ng nh\u1eb9 h\u01a1n nhi\u1ec1u \u2192 chi ph\u00ed theo chi ti\u1ebft ho\u00e0n thi\u1ec7n \u0111\u00f4i khi c\u1ea1nh tranh h\u01a1n (v\u1eadn chuy\u1ec3n, l\u1eafp \u0111\u1eb7t).\n  - \u0110\u1ed3ng \u0111\u1eaft nh\u1ea5t; ch\u1ec9 d\u00f9ng khi c\u1ea7n t\u00ednh n\u0103ng d\u1eabn nhi\u1ec7t\/\u0111i\u1ec7n ho\u1eb7c kh\u00e1ng \u0103n m\u00f2n n\u01b0\u1edbc \u0111\u1eb7c th\u00f9.\n\n\n\n<h2 id=\"toc-4-bai-toan-nhanh-can-nang-tam-12-m-day-2-mm\">B\u00e0i to\u00e1n nhanh: c\u00e2n n\u1eb7ng t\u1ea5m 1\u00d72 m, d\u00e0y 2 mm<\/h2>\n<p>&#8211; Th\u1ec3 t\u00edch V = 1 \u00d7 2 \u00d7 0.002 = 0.004 m\u00b3<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng \u01b0\u1edbc t\u00ednh:<br \/>\n  &#8211; Inox (~7,9 t\/m\u00b3): \u2248 31.6 kg<br \/>\n  &#8211; Nh\u00f4m (~2,7 t\/m\u00b3): \u2248 10.8 kg<br \/>\n  &#8211; Th\u00e9p (~7,85 t\/m\u00b3): \u2248 31.4 kg<br \/>\n  &#8211; \u0110\u1ed3ng (~8,96 t\/m\u00b3): \u2248 35.8 kg<br \/>\nG\u1ee3i \u00fd: N\u1ebfu ng\u01b0\u1eddi b\u1ed1c v\u00e1c\/gi\u00e0n n\u00e2ng gi\u1edbi h\u1ea1n 25 kg, t\u1ea5m Nh\u00f4m l\u00e0 l\u1ef1a ch\u1ecdn d\u1ec5 thao t\u00e1c h\u01a1n nhi\u1ec1u.<\/p>\n<h2 id=\"toc-5-chon-nhanh-theo-tinh-huong-thuc-te\">Ch\u1ecdn nhanh theo t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf<\/h2>\n<p>&#8211; Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb, xa bi\u1ec3n:<br \/>\n  &#8211; K\u1ebft c\u1ea5u, m\u00e1ng c\u00e1p, khung: Th\u00e9p m\u1ea1 k\u1ebdm\/s\u01a1n ho\u1eb7c Inox 201\/304 t\u00f9y ng\u00e2n s\u00e1ch v\u00e0 y\u00eau c\u1ea7u th\u1ea9m m\u1ef9.<br \/>\n&#8211; G\u1ea7n bi\u1ec3n, khu mu\u1ed1i\/ho\u00e1 ch\u1ea5t nh\u1eb9:<br \/>\n  &#8211; Lan can, b\u1ed3n, \u1ed1c v\u00edt: Inox 316 \u0111\u1ec3 ch\u1ed1ng pitting\/crevice corrosion.<br \/>\n&#8211; B\u1ebfp c\u00f4ng nghi\u1ec7p, ng\u00e0nh F&#038;B:<br \/>\n  &#8211; B\u00e0n, ch\u1eadu, k\u1ec7, b\u1ed3n: Inox 304; v\u00f9ng nhi\u1ec5m m\u1eb7n\/ho\u00e1 ch\u1ea5t t\u1ea9y m\u1ea1nh: c\u00e2n nh\u1eafc 316.<br \/>\n&#8211; K\u1ebft c\u1ea5u c\u1ea7n nh\u1eb9\/di \u0111\u1ed9ng:<br \/>\n  &#8211; Khung m\u00e1y nh\u1ecf, v\u1ecf h\u1ed9p, s\u00e0n di \u0111\u1ed9ng: Nh\u00f4m 6061\/5052; gia c\u01b0\u1eddng g\u00e2n \u0111\u1ec3 t\u0103ng c\u1ee9ng v\u1eefng.<br \/>\n&#8211; T\u1ea3n nhi\u1ec7t, trao \u0111\u1ed5i nhi\u1ec7t, block c\u00f4ng su\u1ea5t:<br \/>\n  &#8211; \u0110\u1ed3ng (hi\u1ec7u su\u1ea5t t\u1ed1i \u0111a) ho\u1eb7c Nh\u00f4m (t\u1ed1i \u01b0u chi ph\u00ed\/kh\u1ed1i l\u01b0\u1ee3ng).<br \/>\n&#8211; D\u1eabn \u0111i\u1ec7n, thanh c\u00e1i, ti\u1ebfp \u0111\u1ecba:<br \/>\n  &#8211; \u0110\u1ed3ng cho m\u1eadt \u0111\u1ed9 d\u00f2ng cao; Nh\u00f4m cho tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9\/gi\u00e1 t\u1ed1t (c\u1ea7n \u0111\u1ea7u cos\/keo n\u1ed1i ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a).<br \/>\n&#8211; B\u1ed3n\/tank n\u01b0\u1edbc s\u1ea1ch:<br \/>\n  &#8211; Inox 304\/316; tr\u00e1nh 201 cho n\u01b0\u1edbc ch\u1ee9a chloride cao.<br \/>\n&#8211; K\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c trong nh\u00e0 x\u01b0\u1edfng:<br \/>\n  &#8211; Th\u00e9p h\u00ecnh (I, H, U) m\u1ea1 k\u1ebdm\/s\u01a1n c\u00f4ng nghi\u1ec7p; Inox khi y\u00eau c\u1ea7u ch\u1ed1ng \u0103n m\u00f2n v\u00e0 v\u1ec7 sinh.<br \/>\n&#8211; Trang tr\u00ed n\u1ed9i ngo\u1ea1i th\u1ea5t cao c\u1ea5p:<br \/>\n  &#8211; Inox hairline\/mirror; \u0110\u1ed3ng\/brass cho \u0111i\u1ec3m nh\u1ea5n sang tr\u1ecdng (ch\u1ea5p nh\u1eadn patina).<\/p>\n<h2 id=\"toc-6-sai-lam-pho-bien-can-tranh\">Sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/h2>\n<p>&#8211; Nh\u1ea7m Inox 201 l\u00e0 304: 201 r\u1ebb nh\u01b0ng k\u00e9m ch\u1ed1ng r\u1ec9; ki\u1ec3m tra magnet\/thu\u1ed1c th\u1eed, y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 m\u00e1c.<br \/>\n&#8211; D\u00f9ng Nh\u00f4m cho k\u1ebft c\u1ea5u d\u00e0i m\u00e0 kh\u00f4ng t\u00ednh v\u00f5ng: E th\u1ea5p \u2192 c\u1ea7n t\u0103ng \u0111\u1ed9 d\u00e0y\/g\u00e2n c\u1ee9ng.<br \/>\n&#8211; Ch\u1ecdn Th\u00e9p s\u01a1n \u1edf v\u00f9ng bi\u1ec3n m\u00e0 kh\u00f4ng d\u1ef1 ph\u00f2ng b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3: nhanh xu\u1ed1ng c\u1ea5p.<br \/>\n&#8211; D\u00f9ng \u0110\u1ed3ng g\u1ea7n ngu\u1ed3n amoniac (nh\u00e0 m\u00e1y l\u1ea1nh, ph\u00e2n b\u00f3n) m\u00e0 kh\u00f4ng \u0111\u00e1nh gi\u00e1 nguy c\u01a1 n\u1ee9t \u1ee9ng su\u1ea5t.<br \/>\n&#8211; H\u00e0n Nh\u00f4m\/\u0110\u1ed3ng b\u1eb1ng thi\u1ebft b\u1ecb\/th\u1ee3 ch\u01b0a ph\u00f9 h\u1ee3p \u2192 m\u1ed1i h\u00e0n k\u00e9m, r\u1ed7 kh\u00ed, n\u1ee9t.<br \/>\n&#8211; Tr\u1ed9n l\u1eabn kim lo\u1ea1i kh\u00e1c nhau ngo\u00e0i tr\u1eddi m\u00e0 kh\u00f4ng c\u00e1ch \u0111i\u1ec7n\/kh\u1eed c\u1eb7p \u0111i\u1ec7n h\u00f3a \u2192 \u0103n m\u00f2n galvanic (v\u00ed d\u1ee5 Al b\u1eaft v\u00edt th\u00e9p kh\u00f4ng c\u00e1ch ly).<\/p>\n<h2 id=\"toc-7-goi-y-mac-vat-lieu-thong-dung-o-viet-nam\">G\u1ee3i \u00fd m\u00e1c v\u1eadt li\u1ec7u th\u00f4ng d\u1ee5ng \u1edf Vi\u1ec7t Nam<\/h2>\n<p>&#8211; Inox: 201 (kinh t\u1ebf, n\u1ed9i th\u1ea5t kh\u00f4), 304 (\u0111a d\u1ee5ng), 316 (m\u00f4i tr\u01b0\u1eddng bi\u1ec3n\/h\u00f3a ch\u1ea5t nh\u1eb9), 430 (ferritic, nhi\u1ec5m t\u1eeb, gia d\u1ee5ng).<br \/>\n&#8211; Nh\u00f4m: 5052 (t\u1ea5m, u\u1ed1n t\u1ed1t, ch\u1ed1ng \u0103n m\u00f2n), 6061-T6 (k\u1ebft c\u1ea5u, gia c\u00f4ng, h\u00e0n), 6063 (\u0111\u00f9n profile).<br \/>\n&#8211; Th\u00e9p carbon: Q235\/SS400\/CT3 (k\u1ebft c\u1ea5u chung), Q345 (b\u1ec1n cao h\u01a1n), t\u00f4n m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng cho ngo\u00e0i tr\u1eddi.<br \/>\n&#8211; \u0110\u1ed3ng: C1100 (Cu-ETP, d\u1eabn \u0111i\u1ec7n cao), Cu-DHP (\u1ed1ng trao \u0111\u1ed5i nhi\u1ec7t, h\u00e0n t\u1ed1t).<\/p>\n<h2 id=\"toc-8-cach-ra-quyet-dinh-5-cau-hoi-then-chot\">C\u00e1ch ra quy\u1ebft \u0111\u1ecbnh: 5 c\u00e2u h\u1ecfi then ch\u1ed1t<\/h2>\n<p>&#8211; M\u00f4i tr\u01b0\u1eddng c\u00f3 \u0103n m\u00f2n kh\u00f4ng (g\u1ea7n bi\u1ec3n, h\u00f3a ch\u1ea5t, \u1ea9m)? \u2192 N\u1ebfu c\u00f3: \u01b0u ti\u00ean Inox 304\/316.<br \/>\n&#8211; \u01afu ti\u00ean nh\u1eb9 hay c\u1ee9ng v\u1eefng? \u2192 Nh\u1eb9: Nh\u00f4m; c\u1ee9ng v\u1eefng: Th\u00e9p\/Inox.<br \/>\n&#8211; C\u1ea7n d\u1eabn nhi\u1ec7t\/\u0111i\u1ec7n cao? \u2192 \u0110\u1ed3ng (t\u1ed1i \u0111a) ho\u1eb7c Nh\u00f4m (kinh t\u1ebf).<br \/>\n&#8211; C\u00f3 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3 kh\u00f4ng? \u2192 N\u1ebfu kh\u00f4ng: Inox; n\u1ebfu c\u00f3: Th\u00e9p m\u1ea1\/s\u01a1n c\u00f3 th\u1ec3 \u0111\u1ee7.<br \/>\n&#8211; Ng\u00e2n s\u00e1ch theo v\u00f2ng \u0111\u1eddi hay ban \u0111\u1ea7u? \u2192 V\u00f2ng \u0111\u1eddi: c\u00e2n nh\u1eafc Inox\/Al; ban \u0111\u1ea7u: Th\u00e9p.<\/p>\n<h2 id=\"toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; N\u1ebfu \u01b0u ti\u00ean ch\u1ed1ng \u0103n m\u00f2n, v\u1ec7 sinh v\u00e0 b\u1ec1n b\u1ec9: ch\u1ecdn Inox (304 cho \u0111a d\u1ee5ng, 316 cho m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t).<br \/>\n&#8211; N\u1ebfu \u01b0u ti\u00ean tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 v\u00e0 d\u1ec5 gia c\u00f4ng: ch\u1ecdn Nh\u00f4m (6061\/5052), nh\u01b0ng nh\u1edb t\u0103ng c\u1ee9ng v\u1eefng khi c\u1ea7n.<br \/>\n&#8211; N\u1ebfu \u01b0u ti\u00ean chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p v\u00e0 ch\u1ecbu l\u1ef1c: ch\u1ecdn Th\u00e9p carbon, k\u00e8m gi\u1ea3i ph\u00e1p ph\u1ee7 b\u1ea3o v\u1ec7.<br \/>\n&#8211; N\u1ebfu \u01b0u ti\u00ean d\u1eabn nhi\u1ec7t\/\u0111i\u1ec7n: ch\u1ecdn \u0110\u1ed3ng, ch\u1ea5p nh\u1eadn chi ph\u00ed v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng cao.<\/p>\n<p>Kh\u00f4ng c\u00f3 v\u1eadt li\u1ec7u \u201ct\u1ed1t nh\u1ea5t tuy\u1ec7t \u0111\u1ed1i\u201d \u2013 ch\u1ec9 c\u00f3 v\u1eadt li\u1ec7u \u201cph\u00f9 h\u1ee3p nh\u1ea5t\u201d v\u1edbi \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c, y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt v\u00e0 ng\u00e2n s\u00e1ch. H\u00e3y d\u00f9ng c\u00e1c ti\u00eau ch\u00ed v\u00e0 s\u1ed1 li\u1ec7u trong b\u00e0i nh\u01b0 m\u1ed9t \u201cchecklist\u201d \u0111\u1ec3 ra quy\u1ebft \u0111\u1ecbnh nhanh, ch\u00ednh x\u00e1c v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh r\u00f5 r\u00e0ng Inox, Nh\u00f4m, S\u1eaft, \u0110\u1ed3ng theo \u0111\u1ed9 b\u1ec1n, tr\u1ecdng l\u01b0\u1ee3ng, \u0103n m\u00f2n, d\u1eabn nhi\u1ec7t\/\u0111i\u1ec7n, gia c\u00f4ng, gi\u00e1 v\u00e0 \u1ee9ng d\u1ee5ng. K\u00e8m g\u1ee3i \u00fd ch\u1ecdn nhanh theo t\u00ecnh hu\u1ed1ng.<\/p>\n","protected":false},"author":7,"featured_media":1016,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1182","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\/1182","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=1182"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1182\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1016"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1182"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}