{"id":1523,"date":"2026-01-07T12:34:13","date_gmt":"2026-01-07T05:34:13","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/quy-trinh-tai-che-inox-va-vi-sao-thep-khong-gi-100-tai-che\/"},"modified":"2026-01-07T12:34:13","modified_gmt":"2026-01-07T05:34:13","slug":"quy-trinh-tai-che-inox-va-vi-sao-thep-khong-gi-100-tai-che","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/quy-trinh-tai-che-inox-va-vi-sao-thep-khong-gi-100-tai-che\/","title":{"rendered":"Quy tr\u00ecnh t\u00e1i ch\u1ebf inox v\u00e0 v\u00ec sao th\u00e9p kh\u00f4ng g\u1ec9 100% t\u00e1i ch\u1ebf"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-100-tai-che-nghia-la-gi-phan-biet-kha-nang-tai-che\">\u201c100% t\u00e1i ch\u1ebf\u201d ngh\u0129a l\u00e0 g\u00ec? Ph\u00e2n bi\u1ec7t kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf v\u00e0 t\u1ef7 l\u1ec7 t\u00e1i ch\u1ebf<\/a><\/li>\n<li><a href=\"#toc-1-quy-trinh-tai-che-inox-tu-phe-lieu-den-cuonongthan\">Quy tr\u00ecnh t\u00e1i ch\u1ebf inox: t\u1eeb ph\u1ebf li\u1ec7u \u0111\u1ebfn cu\u1ed9n\/\u1ed1ng\/thanh m\u1edbi<\/a><\/li>\n<li><a href=\"#toc-2-vi-sao-inox-co-the-tai-che-vo-han-ma-khong-xuong-c\">V\u00ec sao inox c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf v\u00f4 h\u1ea1n m\u00e0 kh\u00f4ng xu\u1ed1ng c\u1ea5p?<\/a><\/li>\n<li><a href=\"#toc-3-loi-ich-nang-luong-va-phat-thai-khi-tai-che-inox\">L\u1ee3i \u00edch n\u0103ng l\u01b0\u1ee3ng v\u00e0 ph\u00e1t th\u1ea3i khi t\u00e1i ch\u1ebf inox<\/a><\/li>\n<li><a href=\"#toc-4-nhung-yeu-to-quyet-dinh-ham-luong-tai-che-trong-in\">Nh\u1eefng y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf trong inox b\u1ea1n mua<\/a><\/li>\n<li><a href=\"#toc-5-huong-dan-cho-xuong-va-nha-thau-toi-da-hoa-gia-tri\">H\u01b0\u1edbng d\u1eabn cho x\u01b0\u1edfng v\u00e0 nh\u00e0 th\u1ea7u: t\u1ed1i \u0111a h\u00f3a gi\u00e1 tr\u1ecb v\u00e0 kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf<\/a><\/li>\n<li><a href=\"#toc-6-ung-dung-trong-cong-trinh-xanh-leedlotus-va-truy-x\">\u1ee8ng d\u1ee5ng trong c\u00f4ng tr\u00ecnh xanh: LEED\/LOTUS v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<\/a><\/li>\n<li><a href=\"#toc-7-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-8-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) \u0111\u1ee9ng \u1edf trung t\u00e2m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c v\u1eadt li\u1ec7u b\u1ec1n v\u1eefng trong x\u00e2y d\u1ef1ng v\u00e0 ch\u1ebf t\u1ea1o. Ch\u1ee7 \u0111\u1ec1 n\u00e0y l\u00e0m r\u00f5 quy tr\u00ecnh t\u00e1i ch\u1ebf inox t\u1eeb A\u2013Z v\u00e0 gi\u1ea3i th\u00edch v\u00ec sao \u0111\u00e2y l\u00e0 v\u1eadt li\u1ec7u \u201cc\u00f3 th\u1ec3 t\u00e1i ch\u1ebf 100%\u201d m\u00e0 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh n\u0103ng c\u01a1 l\u00fd v\u00e0 ch\u1ed1ng \u0103n m\u00f2n nh\u01b0 ban \u0111\u1ea7u.<\/p>\n<h2 id=\"toc-0-100-tai-che-nghia-la-gi-phan-biet-kha-nang-tai-che\">\u201c100% t\u00e1i ch\u1ebf\u201d ngh\u0129a l\u00e0 g\u00ec? Ph\u00e2n bi\u1ec7t kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf v\u00e0 t\u1ef7 l\u1ec7 t\u00e1i ch\u1ebf<\/h2>\n<p>&#8211; Kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf (recyclability): Inox c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u1ea5u ch\u1ea3y v\u00e0 t\u00e1i luy\u1ec7n v\u00f4 h\u1ea1n l\u1ea7n m\u00e0 kh\u00f4ng m\u1ea5t t\u00ednh ch\u1ea5t do c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim (Cr, Ni, Mo\u2026) kh\u00f4ng b\u1ecb \u201chao m\u00f2n\u201d v\u1ec1 m\u1eb7t nguy\u00ean t\u1eed h\u1ecdc. \u0110\u00e2y l\u00e0 \u00fd ngh\u0129a c\u1ee7a \u201c100% t\u00e1i ch\u1ebf\u201d.<br \/>\n&#8211; T\u1ef7 l\u1ec7 t\u00e1i ch\u1ebf th\u1ef1c t\u1ebf (recycling rate): Trong th\u1ef1c t\u1ebf c\u00f2n ph\u1ee5 thu\u1ed9c thu gom, ph\u00e2n lo\u1ea1i v\u00e0 th\u1ecb tr\u01b0\u1eddng. C\u00e1c t\u1ed5 ch\u1ee9c ng\u00e0nh cho bi\u1ebft:<br \/>\n  &#8211; T\u1ef7 l\u1ec7 thu h\u1ed3i inox \u1edf cu\u1ed1i v\u00f2ng \u0111\u1eddi th\u01b0\u1eddng tr\u00ean 80\u201390% t\u00f9y khu v\u1ef1c [ISSF\/worldstainless].<br \/>\n  &#8211; H\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf trung b\u00ecnh trong inox th\u00e0nh ph\u1ea9m to\u00e0n c\u1ea7u kho\u1ea3ng 50\u201370% (thay \u0111\u1ed5i theo m\u00e1c, nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ngu\u1ed3n ph\u1ebf) [Nickel Institute; EPD nh\u00e0 m\u00e1y].<\/p>\n<p>K\u1ebft lu\u1eadn: Inox l\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf 100% v\u1ec1 m\u1eb7t c\u00f4ng ngh\u1ec7; t\u1ef7 l\u1ec7 t\u00e1i ch\u1ebf th\u1ef1c t\u1ebf cao nh\u01b0ng kh\u00f4ng tuy\u1ec7t \u0111\u1ed1i do y\u1ebfu t\u1ed1 logistics v\u00e0 v\u00f2ng \u0111\u1eddi d\u00e0i c\u1ee7a s\u1ea3n ph\u1ea9m inox.<\/p>\n<h2 id=\"toc-1-quy-trinh-tai-che-inox-tu-phe-lieu-den-cuonongthan\">Quy tr\u00ecnh t\u00e1i ch\u1ebf inox: t\u1eeb ph\u1ebf li\u1ec7u \u0111\u1ebfn cu\u1ed9n\/\u1ed1ng\/thanh m\u1edbi<\/h2>\n<h3>1) Thu gom v\u00e0 ph\u00e2n lo\u1ea1i ph\u1ebf li\u1ec7u<\/h3>\n<p>Ngu\u1ed3n ph\u1ebf ch\u00ednh:<br \/>\n&#8211; Home scrap (n\u1ed9i b\u1ed9 nh\u00e0 m\u00e1y): bavia, ph\u1ebf c\u1eaft trong qu\u00e1 tr\u00ecnh c\u00e1n\/\u0111\u00fac \u2013 quay v\u00f2ng g\u1ea7n nh\u01b0 100% theo v\u00f2ng k\u00edn.<br \/>\n&#8211; Prompt\/industrial scrap: ph\u1ebf ph\u00e1t sinh t\u1ea1i nh\u00e0 gia c\u00f4ng, x\u01b0\u1edfng c\u01a1 kh\u00ed.<br \/>\n&#8211; End-of-life scrap: thi\u1ebft b\u1ecb, \u0111\u01b0\u1eddng \u1ed1ng, k\u1ebft c\u1ea5u, \u0111\u1ed3 gia d\u1ee5ng h\u1ebft v\u00f2ng \u0111\u1eddi.<\/p>\n<p>B\u01b0\u1edbc ph\u00e2n lo\u1ea1i k\u1ef9 thu\u1eadt:<br \/>\n&#8211; T\u00e1ch nh\u00f3m b\u1eb1ng nam ch\u00e2m: ferritic (400 series) h\u00fat nam ch\u00e2m; austenitic (300 series) th\u01b0\u1eddng \u00edt h\u00fat, nh\u01b0ng c\u00f3 th\u1ec3 h\u01a1i t\u1eeb h\u00f3a do bi\u1ebfn c\u1ee9ng ngu\u1ed9i \u2013 kh\u00f4ng d\u00f9ng nam ch\u00e2m l\u00e0m ti\u00eau ch\u00ed duy nh\u1ea5t.<br \/>\n&#8211; Nh\u1eadn di\u1ec7n m\u00e1c b\u1eb1ng XRF\/OES c\u1ea7m tay: \u0111o nhanh %Cr, Ni, Mo, Mn \u0111\u1ec3 ph\u00e2n d\u00f2ng (304\/304L, 316\/316L, 430, 201\u2026).<br \/>\n&#8211; Lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t: b\u1ea9n d\u1ea7u, s\u01a1n, nh\u1ef1a, g\u1ed7; th\u00e1o r\u1eddi ph\u1ee5 ki\u1ec7n \u0111\u1ed3ng, nh\u00f4m, ch\u00ec\u2026 \u0111\u1ec3 gi\u1ea3m t\u1ea1p ch\u1ea5t (Cu, Sn, Pb) khi n\u1ea5u.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ph\u00f3ng x\u1ea1: c\u1ed5ng ph\u00e1t hi\u1ec7n (radiation portal monitor) t\u1ea1i b\u00e3i ph\u1ebf \u0111\u1ec3 b\u1ea3o \u0111\u1ea3m an to\u00e0n.<\/p>\n<h3>2) Chu\u1ea9n b\u1ecb ph\u1ebf: c\u1eaft, \u00e9p ki\u1ec7n, l\u00e0m s\u1ea1ch<\/h3>\n<p>&#8211; C\u1eaft\/ngu\u1ed9i: c\u1eaft ng\u1eafn, x\u00e9n m\u00e9p \u0111\u1ec3 t\u1ed1i \u01b0u n\u1ea1p l\u00f2.<br \/>\n&#8211; \u00c9p ki\u1ec7n\/briquette: \u1ed5n \u0111\u1ecbnh kh\u1ed1i l\u01b0\u1ee3ng n\u1ea1p, c\u1ea3i thi\u1ec7n m\u1eadt \u0111\u1ed9.<br \/>\n&#8211; T\u1ea9y d\u1ea7u\/\u0111\u1ed1t s\u01a1 b\u1ed9: gi\u1ea3m \u1ea9m v\u00e0 d\u1ea7u m\u1ee1 nh\u1eb1m h\u1ea1n ch\u1ebf b\u00f9ng l\u1eeda, kh\u00f3i v\u00e0 t\u1ea1p l\u01b0u hu\u1ef3nh.<\/p>\n<h3>3) N\u1ea5u ch\u1ea3y trong l\u00f2 h\u1ed3 quang \u0111i\u1ec7n (EAF)<\/h3>\n<p>&#8211; Nguy\u00ean li\u1ec7u n\u1ea1p: ph\u1ebf inox \u0111\u00e3 ph\u00e2n d\u00f2ng, m\u1ed9t ph\u1ea7n ph\u1ebf th\u00e9p carbon s\u1ea1ch (n\u1ebfu thi\u1ebft k\u1ebf m\u00e1c cho ph\u00e9p), ferrochrome (FeCr), ferronickel ho\u1eb7c nickel cathode, ferromolybdenum, v\u00f4i\/dolomite l\u00e0m x\u1ec9.<br \/>\n&#8211; EAF d\u00f9ng h\u1ed3 quang \u0111\u1ec3 n\u1ea5u ch\u1ea3y m\u1ebb ph\u1ebf; t\u1ef7 l\u1ec7 ph\u1ebf trong m\u1ebb inox th\u01b0\u1eddng 60\u201390% t\u00f9y m\u00e1c v\u00e0 chi\u1ebfn l\u01b0\u1ee3c chi ph\u00ed-carbon.<br \/>\n&#8211; T\u1ea1o x\u1ec9 \u0111\u1ec3 thu gi\u1eef t\u1ea1p ch\u1ea5t (S, P) v\u00e0 oxit h\u00f3a c\u00e1c nguy\u00ean t\u1ed1 kh\u00f4ng mong mu\u1ed1n.<\/p>\n<h3>4) Tinh luy\u1ec7n AOD\/VOD: \u0111\u1ea1t th\u00e0nh ph\u1ea7n v\u00e0 \u0111\u1ed9 s\u1ea1ch mong mu\u1ed1n<\/h3>\n<p>&#8211; AOD (Argon Oxygen Decarburization): th\u1ed5i O2 v\u00e0 Ar\/N2 \u0111\u1ec3 kh\u1eed C xu\u1ed1ng m\u1ee9c r\u1ea5t th\u1ea5p m\u00e0 gi\u1eef \u0111\u01b0\u1ee3c Cr, Ni; \u0111\u1ed3ng th\u1eddi kh\u1eed S, \u0111i\u1ec1u ch\u1ec9nh N theo y\u00eau c\u1ea7u m\u00e1c.<br \/>\n&#8211; VOD (Vacuum Oxygen Decarburization): d\u00f9ng ch\u00e2n kh\u00f4ng cho c\u00e1c m\u00e1c y\u00eau c\u1ea7u C v\u00e0 N r\u1ea5t th\u1ea5p.<br \/>\n&#8211; C\u00e2n b\u1eb1ng th\u00e0nh ph\u1ea7n: b\u1ed5 sung h\u1ee3p kim \u0111\u1ec3 \u0111\u1ea1t m\u00e1c m\u1ee5c ti\u00eau (v\u00ed d\u1ee5 304: ~18%Cr\u20138%Ni; 316: ~17%Cr\u201310%Ni\u20132%Mo; 430: ~16\u201318%Cr). Ph\u00f2ng lab ph\u00e2n t\u00edch quang ph\u1ed5 theo th\u1eddi gian th\u1ef1c \u0111\u1ec3 \u201ckh\u00f3a\u201d th\u00e0nh ph\u1ea7n.<\/p>\n<h3>5) \u0110\u00fac b\u00e1n th\u00e0nh ph\u1ea9m v\u00e0 c\u00e1n l\u1ea1i<\/h3>\n<p>&#8211; \u0110\u00fac li\u00ean t\u1ee5c d\u1ea1ng slab\/billet\/bloom, sau \u0111\u00f3 c\u00e1n n\u00f3ng \u2013 \u1ee7 \u2013 t\u1ea9y g\u1ec9 \u2013 c\u00e1n ngu\u1ed9i (\u0111\u1ed1i v\u1edbi d\u1ea3i\/cu\u1ed9n), k\u00e9o ngu\u1ed9i (\u0111\u1ed1i v\u1edbi \u1ed1ng\/thanh) \u0111\u1ec3 \u0111\u1ea1t c\u01a1 t\u00ednh v\u00e0 b\u1ec1 m\u1eb7t y\u00eau c\u1ea7u.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng: ph\u00e2n t\u00edch h\u00f3a h\u1ecdc (Spectro), t\u1ed5 ch\u1ee9c t\u1ebf vi, c\u01a1 t\u00ednh (\u0111\u1ed9 b\u1ec1n, d\u00e3n d\u00e0i), \u0103n m\u00f2n (pitting for 316\/duplex), v\u00e0 ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y (PMI, UT\/ET cho \u1ed1ng).<\/p>\n<h3>6) V\u00f2ng k\u00edn t\u1ea1i nh\u00e0 m\u00e1y v\u00e0 chu\u1ed7i cung \u1ee9ng<\/h3>\n<p>&#8211; Scrap h\u1ed3i l\u01b0u n\u1ed9i b\u1ed9 (revert scrap) t\u1eeb c\u1eaft m\u00e9p, l\u1ed7i b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c quay l\u1ea1i l\u00f2; \u0111\u00e2y l\u00e0 \u0111i\u1ec3m then ch\u1ed1t gi\u00fap inox duy tr\u00ec \u201cch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng xu\u1ed1ng c\u1ea5p\u201d sau t\u00e1i ch\u1ebf.<\/p>\n<h2 id=\"toc-2-vi-sao-inox-co-the-tai-che-vo-han-ma-khong-xuong-c\">V\u00ec sao inox c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf v\u00f4 h\u1ea1n m\u00e0 kh\u00f4ng xu\u1ed1ng c\u1ea5p?<\/h2>\n<p>&#8211; H\u00f3a h\u1ecdc h\u1ee3p kim \u1ed5n \u0111\u1ecbnh: Cr, Ni, Mo\u2026 l\u00e0 nguy\u00ean t\u1ed1 kim lo\u1ea1i c\u01a1 b\u1ea3n; khi n\u1ea5u l\u1ea1i, c\u1ea5u tr\u00fac austenite\/ferrite\/martensite \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp nh\u1edd tinh luy\u1ec7n AOD\/VOD \u2013 kh\u00f4ng c\u00f3 \u201cgi\u00e0 h\u00f3a\u201d nh\u01b0 polymer.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c: ph\u00e2n d\u00f2ng ph\u1ebf + b\u1ed5 sung ferroh\u1ee3p kim gi\u00fap quay v\u1ec1 \u0111\u00fang c\u1eeda s\u1ed5 m\u00e1c theo ti\u00eau chu\u1ea9n ASTM\/EN\/TCVN.<br \/>\n&#8211; Tr\u1ecb \u0111\u01b0\u1ee3c t\u1ea1p ch\u1ea5t: x\u1ec9 tinh luy\u1ec7n + th\u1ef1c h\u00e0nh luy\u1ec7n kim hi\u1ec7n \u0111\u1ea1i lo\u1ea1i \u0111\u01b0\u1ee3c S, P, C; ki\u1ec3m so\u00e1t tramp (Cu, Sn, Pb) trong gi\u1edbi h\u1ea1n cho t\u1eebng m\u00e1c.<br \/>\n&#8211; Gi\u00e1 tr\u1ecb kinh t\u1ebf cao c\u1ee7a ph\u1ebf inox: th\u00fac \u0111\u1ea9y th\u1ecb tr\u01b0\u1eddng thu gom, gi\u1ea3m th\u1ea5t tho\u00e1t v\u00e0 tr\u00e1nh \u201cdowncycling\u201d sang th\u00e9p carbon.<\/p>\n<h2 id=\"toc-3-loi-ich-nang-luong-va-phat-thai-khi-tai-che-inox\">L\u1ee3i \u00edch n\u0103ng l\u01b0\u1ee3ng v\u00e0 ph\u00e1t th\u1ea3i khi t\u00e1i ch\u1ebf inox<\/h2>\n<p>&#8211; Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng: d\u00f9ng ph\u1ebf l\u00e0m nguy\u00ean li\u1ec7u gi\u00fap gi\u1ea3m 60\u201370% n\u0103ng l\u01b0\u1ee3ng so v\u1edbi s\u1ea3n xu\u1ea5t t\u1eeb qu\u1eb7ng nguy\u00ean sinh, \u0111\u1eb7c bi\u1ec7t v\u1edbi tuy\u1ebfn EAF [World Steel Association].<br \/>\n&#8211; Gi\u1ea3m ph\u00e1t th\u1ea3i CO2: t\u1ec9 l\u1ec7 ph\u1ebf c\u00e0ng cao, c\u01b0\u1eddng \u0111\u1ed9 ph\u00e1t th\u1ea3i c\u00e0ng th\u1ea5p. Nhi\u1ec1u EPD c\u1ee7a c\u00e1c nh\u00e0 m\u00e1y inox ch\u00e2u \u00c2u cho th\u1ea5y gi\u1ea3m CO2 \u0111\u00e1ng k\u1ec3 khi d\u00f9ng ph\u1ebf >80% so v\u1edbi k\u1ecbch b\u1ea3n nguy\u00ean sinh [EPD nh\u00e0 m\u00e1y; worldstainless].<br \/>\n&#8211; Gi\u1ea3m khai th\u00e1c t\u00e0i nguy\u00ean: \u00edt qu\u1eb7ng crom\/nicken m\u1edbi, \u00edt ch\u1ea5t th\u1ea3i khai kho\u00e1ng; ph\u00f9 h\u1ee3p m\u1ee5c ti\u00eau kinh t\u1ebf tu\u1ea7n ho\u00e0n trong c\u00f4ng tr\u00ecnh xanh.<\/p>\n<h2 id=\"toc-4-nhung-yeu-to-quyet-dinh-ham-luong-tai-che-trong-in\">Nh\u1eefng y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh h\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf trong inox b\u1ea1n mua<\/h2>\n<p>&#8211; Ngu\u1ed3n ph\u1ebf v\u00e0 v\u00f2ng \u0111\u1eddi: Inox c\u00f3 v\u00f2ng \u0111\u1eddi d\u00e0i (thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p\/k\u1ebft c\u1ea5u 15\u201340+ n\u0103m), n\u00ean cung ph\u1ebf \u201c\u0111\u1ebfn ch\u1eadm\u201d so v\u1edbi t\u0103ng tr\u01b0\u1edfng nhu c\u1ea7u \u2013 gi\u1edbi h\u1ea1n h\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf t\u1ed1i \u0111a to\u00e0n ng\u00e0nh.<br \/>\n&#8211; M\u00e1c v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt: M\u00e1c c\u00f3 Mo\/N cao, ho\u1eb7c duplex, c\u00f3 th\u1ec3 c\u1ea7n b\u1ed5 sung nhi\u1ec1u h\u1ee3p kim nguy\u00ean sinh \u0111\u1ec3 \u0111\u1ea1t th\u00e0nh ph\u1ea7n.<br \/>\n&#8211; Tuy\u1ebfn c\u00f4ng ngh\u1ec7: EAF+AOD d\u00f9ng ph\u1ebf cao; l\u00f2 chuy\u1ec3n\/BOF \u00edt d\u00f9ng cho inox. Ch\u1ecdn nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 t\u1ed1i \u01b0u h\u00f3a ph\u1ebf.<br \/>\n&#8211; Khu v\u1ef1c v\u00e0 nh\u00e0 m\u00e1y: M\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1 RC trung b\u00ecnh 60\u201390% trong EPD; gi\u00e1 tr\u1ecb c\u1ee5 th\u1ec3 ph\u1ee5 thu\u1ed9c t\u1eebng s\u1ea3n ph\u1ea9m, th\u1eddi \u0111i\u1ec3m.<br \/>\n&#8211; T\u00e0i li\u1ec7u x\u00e1c nh\u1eadn: Y\u00eau c\u1ea7u Mill Test Certificate (MTC) v\u00e0 Environmental Product Declaration (EPD) \u0111\u1ec3 c\u00f3 s\u1ed1 li\u1ec7u RC\/CO2 ph\u1ee5c v\u1ee5 h\u1ed3 s\u01a1 LEED\/LOTUS.<\/p>\n<h2 id=\"toc-5-huong-dan-cho-xuong-va-nha-thau-toi-da-hoa-gia-tri\">H\u01b0\u1edbng d\u1eabn cho x\u01b0\u1edfng v\u00e0 nh\u00e0 th\u1ea7u: t\u1ed1i \u0111a h\u00f3a gi\u00e1 tr\u1ecb v\u00e0 kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf<\/h2>\n<p>&#8211; Ph\u00e2n d\u00f2ng ngay t\u1ea1i ngu\u1ed3n:<br \/>\n  &#8211; T\u00e1ch 300-series, 400-series, 200-series; ghi nh\u00e3n th\u00f9ng ph\u1ebf r\u00f5 r\u00e0ng.<br \/>\n  &#8211; Tr\u00e1nh tr\u1ed9n inox v\u1edbi th\u00e9p carbon \u0111\u1ec3 kh\u00f4ng l\u00e0m \u201clo\u00e3ng\u201d m\u00e1c khi t\u00e1i ch\u1ebf.<br \/>\n&#8211; Gi\u1eef s\u1ea1ch ph\u1ebf:<br \/>\n  &#8211; Th\u00e1o ph\u1ee5 ki\u1ec7n \u0111\u1ed3ng, nh\u00f4m; lo\u1ea1i b\u1ecf cao su\/nh\u1ef1a; h\u1ea1n ch\u1ebf l\u1eabn d\u1ea7u, c\u00e1t m\u00e0i n\u1eb7ng Cr2O3.<br \/>\n&#8211; L\u01b0u kho an to\u00e0n:<br \/>\n  &#8211; Che m\u01b0a, n\u1ec1n kh\u00f4 r\u00e1o; ki\u1ec3m so\u00e1t tia l\u1eeda trong khu c\u1eaft, \u0111\u1eb7c bi\u1ec7t g\u1ea7n b\u00ecnh ch\u1ee9a d\u1ea7u.<br \/>\n&#8211; Ki\u1ec3m tra nhanh:<br \/>\n  &#8211; D\u00f9ng PMI\/XRF c\u1ea7m tay khi c\u00f3 nghi ng\u1edd; v\u1edbi l\u00f4 l\u1edbn, y\u00eau c\u1ea7u b\u00ean thu mua ph\u1ebf cung c\u1ea5p bi\u00ean b\u1ea3n ph\u00e2n t\u00edch.<br \/>\n&#8211; B\u00e1n ph\u1ebf \u0111\u00fang th\u1eddi \u0111i\u1ec3m:<br \/>\n  &#8211; Gi\u00e1 ph\u1ebf inox ch\u1ecbu \u1ea3nh h\u01b0\u1edfng m\u1ea1nh b\u1edfi gi\u00e1 Ni\/Cr (LME). Theo d\u00f5i th\u1ecb tr\u01b0\u1eddng \u0111\u1ec3 t\u1ed1i \u01b0u gi\u00e1 tr\u1ecb thu h\u1ed3i.<br \/>\n&#8211; Mua inox cho d\u1ef1 \u00e1n xanh:<br \/>\n  &#8211; Y\u00eau c\u1ea7u EPD ho\u1eb7c Statement of Recycled Content; ki\u1ec3m tra ti\u00eau ch\u00ed LEED v4 (MR credits) ho\u1eb7c LOTUS \u0111\u1ec3 c\u1ed9ng \u0111i\u1ec3m v\u1eadt li\u1ec7u.<\/p>\n<h2 id=\"toc-6-ung-dung-trong-cong-trinh-xanh-leedlotus-va-truy-x\">\u1ee8ng d\u1ee5ng trong c\u00f4ng tr\u00ecnh xanh: LEED\/LOTUS v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<\/h2>\n<p>&#8211; Inox c\u00f3 l\u1ee3i th\u1ebf \u201ctu\u1ed5i th\u1ecd cao + t\u00e1i ch\u1ebf 100%\u201d, ph\u00f9 h\u1ee3p c\u00e1c chi\u1ebfn l\u01b0\u1ee3c gi\u1ea3m v\u00f2ng \u0111\u1eddi CO2.<br \/>\n&#8211; C\u00e1ch ch\u1ee9ng minh:<br \/>\n  &#8211; EPD theo ISO 14025\/EN 15804 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t (n\u00eau RC, GWP).<br \/>\n  &#8211; MTC n\u00eau m\u00e1c\/ti\u00eau chu\u1ea9n; th\u01b0 x\u00e1c nh\u1eadn h\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf trung b\u00ecnh theo tuy\u1ebfn c\u00f4ng ngh\u1ec7.<br \/>\n&#8211; T\u1eadn d\u1ee5ng t\u00edn ch\u1ec9:<br \/>\n  &#8211; LEED v4 MR: Sourcing of Raw Materials (recycled content, EPD).<br \/>\n  &#8211; LOTUS: V\u1eadt li\u1ec7u b\u1ec1n v\u1eefng, h\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf v\u00e0 c\u00f4ng b\u1ed1 m\u00f4i tr\u01b0\u1eddng.<br \/>\n&#8211; Th\u1ef1c h\u00e0nh thi\u1ebft k\u1ebf: t\u1ed1i \u01b0u \u0111\u1ed9 d\u00e0y \u2013 tu\u1ed5i th\u1ecd \u2013 kh\u1ea3 n\u0103ng th\u00e1o l\u1eafp cu\u1ed1i v\u00f2ng \u0111\u1eddi \u0111\u1ec3 t\u0103ng thu h\u1ed3i.<\/p>\n<h2 id=\"toc-7-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; Inox austenitic (304\/316) c\u00f3 th\u1ec3 h\u00fat nam ch\u00e2m kh\u00f4ng?<br \/>\n  &#8211; C\u00f3 th\u1ec3 h\u01a1i h\u00fat sau bi\u1ebfn c\u1ee9ng ngu\u1ed9i; \u0111\u1eebng d\u00f9ng nam ch\u00e2m l\u00e0 ti\u00eau ch\u00ed duy nh\u1ea5t. H\u00e3y d\u00f9ng XRF\/OES \u0111\u1ec3 ph\u00e2n \u0111\u1ecbnh m\u00e1c.<br \/>\n&#8211; C\u00f3 n\u00ean tr\u1ed9n inox v\u1edbi th\u00e9p carbon khi b\u00e1n ph\u1ebf?<br \/>\n  &#8211; Kh\u00f4ng. Tr\u1ed9n l\u1eabn l\u00e0m gi\u1ea3m gi\u00e1 tr\u1ecb v\u00e0 g\u00e2y kh\u00f3 cho luy\u1ec7n kim; h\u00e3y gi\u1eef d\u00f2ng ph\u1ebf ri\u00eang bi\u1ec7t.<br \/>\n&#8211; T\u00e1i ch\u1ebf c\u00f3 l\u00e0m inox \u201ck\u00e9m b\u1ec1n\u201d h\u01a1n?<br \/>\n  &#8211; Kh\u00f4ng, n\u1ebfu luy\u1ec7n \u0111\u00fang quy tr\u00ecnh AOD\/VOD v\u00e0 ki\u1ec3m so\u00e1t t\u1ea1p ch\u1ea5t. T\u00ednh n\u0103ng \u0111\u1ea1t ti\u00eau chu\u1ea9n m\u00e1c nh\u01b0 v\u1eadt li\u1ec7u nguy\u00ean sinh.<br \/>\n&#8211; L\u00e0m sao y\u00eau c\u1ea7u h\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf khi mua?<br \/>\n  &#8211; H\u1ecfi nh\u00e0 cung c\u1ea5p v\u1ec1 EPD, tuy\u00ean b\u1ed1 RC theo n\u0103m ho\u1eb7c theo l\u00f4. Gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh th\u1ecb tr\u01b0\u1eddng 50\u201370%, c\u00f3 nh\u00e0 m\u00e1y \u0111\u1ea1t >80% t\u00f9y s\u1ea3n ph\u1ea9m.<\/p>\n<h2 id=\"toc-8-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; International Stainless Steel Forum (worldstainless): Recycling and Sustainability of Stainless Steel, v\u00e0 Stainless Steel and CO2. https:\/\/www.worldstainless.org<br \/>\n&#8211; Nickel Institute: Stainless Steel Recycling and Recycled Content resources. https:\/\/nickelinstitute.org<br \/>\n&#8211; World Steel Association: Scrap and the steel industry \u2013 l\u1ee3i \u00edch n\u0103ng l\u01b0\u1ee3ng\/ph\u00e1t th\u1ea3i khi d\u00f9ng th\u00e9p ph\u1ebf. https:\/\/worldsteel.org\/steel-topics\/sustainability\/scrap\/<br \/>\n&#8211; EPD c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t inox (v\u00ed d\u1ee5 Outokumpu, Aperam, Acerinox) c\u00f4ng b\u1ed1 RC v\u00e0 GWP. V\u00ed d\u1ee5: https:\/\/www.outokumpu.com\/sustainability\/environmental-product-declarations<\/p>\n<h2 id=\"toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Inox l\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf 100% v\u1ec1 m\u1eb7t c\u00f4ng ngh\u1ec7: ph\u1ebf \u0111\u01b0\u1ee3c n\u1ea5u l\u1ea1i trong EAF, tinh luy\u1ec7n AOD\/VOD \u0111\u1ec3 quay v\u1ec1 \u0111\u00fang m\u00e1c m\u00e0 kh\u00f4ng m\u1ea5t t\u00ednh ch\u1ea5t. Nh\u1edd \u0111\u00f3, ng\u00e0nh inox duy tr\u00ec v\u00f2ng l\u1eb7p \u201ckh\u00f4ng xu\u1ed1ng c\u1ea5p\u201d, ti\u1ebft ki\u1ec7m 60\u201370% n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m ph\u00e1t th\u1ea3i CO2 so v\u1edbi d\u00f9ng nguy\u00ean li\u1ec7u nguy\u00ean sinh. T\u1ef7 l\u1ec7 t\u00e1i ch\u1ebf th\u1ef1c t\u1ebf r\u1ea5t cao, c\u00f2n h\u00e0m l\u01b0\u1ee3ng t\u00e1i ch\u1ebf trong s\u1ea3n ph\u1ea9m ph\u1ee5 thu\u1ed9c v\u00e0o ngu\u1ed3n ph\u1ebf, m\u00e1c v\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t. \u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u v\u00e0 ch\u1ee7 x\u01b0\u1edfng, vi\u1ec7c ph\u00e2n d\u00f2ng ph\u1ebf \u0111\u00fang c\u00e1ch, y\u00eau c\u1ea7u EPD\/MTC, v\u00e0 ch\u1ecdn nh\u00e0 cung c\u1ea5p uy t\u00edn s\u1ebd t\u1ed1i \u01b0u chi ph\u00ed \u2013 ch\u1ea5t l\u01b0\u1ee3ng \u2013 \u0111i\u1ec3m s\u1ed1 c\u00f4ng tr\u00ecnh xanh.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c, ch\u1ee9ng t\u1eeb EPD\/MTC v\u00e0 b\u00e1o gi\u00e1 inox t\u1ed1i \u01b0u cho d\u1ef1 \u00e1n? Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 nhanh ch\u00f3ng v\u00e0 gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb thu gom, ph\u00e2n lo\u1ea1i \u0111\u1ebfn EAF+AOD: gi\u1ea3i th\u00edch v\u00ec sao inox c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf 100%, ti\u1ebft ki\u1ec7m 60\u201370% n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m CO2 cho c\u00f4ng tr\u00ecnh, nh\u00e0 x\u01b0\u1edfng xanh.<\/p>\n","protected":false},"author":7,"featured_media":1046,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1523","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\/1523","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=1523"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1523\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1046"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}