{"id":1112,"date":"2025-09-27T12:33:38","date_gmt":"2025-09-27T05:33:38","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-co-than-thien-voi-moi-truong-lca-tai-che-va-cach-chon\/"},"modified":"2025-09-27T12:33:38","modified_gmt":"2025-09-27T05:33:38","slug":"inox-co-than-thien-voi-moi-truong-lca-tai-che-va-cach-chon","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-co-than-thien-voi-moi-truong-lca-tai-che-va-cach-chon\/","title":{"rendered":"Inox c\u00f3 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng? LCA, t\u00e1i ch\u1ebf v\u00e0 c\u00e1ch ch\u1ecdn"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-inox-xanh-o-nhung-diem-nao\">Inox \u201cxanh\u201d \u1edf nh\u1eefng \u0111i\u1ec3m n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-1-nhung-mat-trai-can-nhin-thang\">Nh\u1eefng m\u1eb7t tr\u00e1i c\u1ea7n nh\u00ecn th\u1eb3ng<\/a><\/li>\n<li><a href=\"#toc-2-so-sanh-nhanh-voi-vat-lieu-thay-the\">So s\u00e1nh nhanh v\u1edbi v\u1eadt li\u1ec7u thay th\u1ebf<\/a><\/li>\n<li><a href=\"#toc-3-khi-nao-inox-thuc-su-xanh-theo-goc-nhin-lca\">Khi n\u00e0o inox th\u1ef1c s\u1ef1 \u201cxanh\u201d theo g\u00f3c nh\u00ecn LCA?<\/a><\/li>\n<li><a href=\"#toc-4-huong-dan-lua-chon-inox-xanh-cho-du-an-tai-viet-na\">H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn inox \u201cxanh\u201d cho d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-5-vi-du-ung-dung-thuc-te\">V\u00ed d\u1ee5 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-6-cac-cau-hoi-thuong-gap\">C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-7-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) c\u00f3 ph\u1ea3i l\u00e0 v\u1eadt li\u1ec7u \u201cxanh\u201d? C\u00e2u tr\u1ea3 l\u1eddi ng\u1eafn g\u1ecdn: c\u00f3, n\u1ebfu \u0111\u00e1nh gi\u00e1 theo v\u00f2ng \u0111\u1eddi s\u1ea3n ph\u1ea9m v\u00e0 b\u1ea1n ch\u1ecdn \u0111\u00fang m\u00e1c, \u0111\u00fang ho\u00e0n thi\u1ec7n, \u0111\u00fang nh\u00e0 s\u1ea3n xu\u1ea5t. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch k\u1ef9 kh\u00eda c\u1ea1nh m\u00f4i tr\u01b0\u1eddng c\u1ee7a inox b\u1eb1ng d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt, so s\u00e1nh v\u1edbi v\u1eadt li\u1ec7u thay th\u1ebf v\u00e0 \u0111\u01b0a ra khuy\u1ebfn ngh\u1ecb th\u1ef1c t\u1ebf cho c\u00f4ng tr\u00ecnh t\u1ea1i Vi\u1ec7t Nam. Ch\u1ee7 \u0111\u1ec1 n\u00e0y l\u00e0 \u0111i\u1ec3m n\u1ec1n t\u1ea3ng trong b\u1ee9c tranh r\u1ed9ng h\u01a1n v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/p>\n<h2 id=\"toc-0-inox-xanh-o-nhung-diem-nao\">Inox \u201cxanh\u201d \u1edf nh\u1eefng \u0111i\u1ec3m n\u00e0o?<\/h2>\n<h3>1) Tu\u1ed5i th\u1ecd r\u1ea5t cao, gi\u1ea3m thay th\u1ebf v\u00e0 r\u00e1c th\u1ea3i<\/h3>\n<p>&#8211; Inox c\u00f3 m\u00e0ng th\u1ee5 \u0111\u1ed9ng Cr2O3 t\u1ef1 h\u00ecnh th\u00e0nh, ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi th\u00e9p carbon.<br \/>\n&#8211; Tu\u1ed5i th\u1ecd th\u1ef1c t\u1ebf: 30\u201350+ n\u0103m cho 304 \u1edf m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb s\u1ea1ch; 316L ho\u1eb7c duplex c\u00f3 th\u1ec3 >50 n\u0103m v\u00f9ng ven bi\u1ec3n\/c\u00f4ng nghi\u1ec7p n\u1ebfu thi\u1ebft k\u1ebf \u0111\u00fang.<br \/>\n&#8211; Tu\u1ed5i th\u1ecd cao \u0111\u1ed3ng ngh\u0129a \u00edt thay th\u1ebf, \u00edt ti\u00eau hao v\u1eadt li\u1ec7u, n\u0103ng l\u01b0\u1ee3ng v\u00e0 v\u1eadn chuy\u1ec3n trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n<h3>2) T\u00e1i ch\u1ebf v\u00f2ng k\u00edn, g\u1ea7n nh\u01b0 kh\u00f4ng suy gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n<p>&#8211; Inox c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf v\u00f4 h\u1ea1n m\u00e0 kh\u00f4ng \u201cxu\u1ed1ng c\u1ea5p\u201d c\u01a1 t\u00ednh.<br \/>\n&#8211; T\u1ef7 l\u1ec7 thu h\u1ed3i cu\u1ed1i v\u00f2ng \u0111\u1eddi to\u00e0n c\u1ea7u th\u01b0\u1eddng 85\u201390% v\u00ec inox c\u00f3 gi\u00e1 tr\u1ecb ph\u1ebf li\u1ec7u cao.<br \/>\n&#8211; H\u00e0m l\u01b0\u1ee3ng ph\u1ebf li\u1ec7u trong inox s\u1ea3n xu\u1ea5t m\u1edbi trung b\u00ecnh kho\u1ea3ng 60% (ph\u1ee5 thu\u1ed9c nh\u00e0 m\u00e1y v\u00e0 m\u00e1c), gi\u00fap gi\u1ea3m nhu c\u1ea7u qu\u1eb7ng s\u01a1 c\u1ea5p.<\/p>\n<h3>3) \u00cdt y\u00eau c\u1ea7u s\u01a1n ph\u1ee7, gi\u1ea3m VOC v\u00e0 h\u00f3a ch\u1ea5t b\u1ea3o tr\u00ec<\/h3>\n<p>&#8211; Kh\u00e1c th\u00e9p carbon, \u0111a s\u1ed1 \u1ee9ng d\u1ee5ng inox kh\u00f4ng c\u1ea7n s\u01a1n\/m\u1ea1 b\u1ea3o v\u1ec7.<br \/>\n&#8211; Lo\u1ea1i b\u1ecf s\u01a1n ph\u1ee7 gi\u00fap tr\u00e1nh ph\u00e1t th\u1ea3i VOC, b\u1ee5i bi\/phun c\u00e1t, v\u00e0 ch\u1ea5t th\u1ea3i nguy h\u1ea1i t\u1eeb c\u00f4ng t\u00e1c b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; Trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, inox ch\u1ec9 c\u1ea7n v\u1ec7 sinh b\u1eb1ng ch\u1ea5t t\u1ea9y r\u1eeda trung t\u00ednh; kh\u00f4ng c\u1ea7n dung m\u00f4i m\u1ea1nh.<\/p>\n<h3>4) An to\u00e0n ti\u1ebfp x\u00fac v\u00e0 v\u1ec7 sinh<\/h3>\n<p>&#8211; Inox \u1ed5n \u0111\u1ecbnh, kh\u00f4ng ph\u00e1t th\u1ea3i s\u1ee3i hay vi h\u1ea1t nh\u01b0 m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u polymer.<br \/>\n&#8211; B\u1ec1 m\u1eb7t m\u1ecbn, d\u1ec5 v\u1ec7 sinh, ph\u00f9 h\u1ee3p th\u1ef1c ph\u1ea9m, y t\u1ebf, n\u01b0\u1edbc s\u1ea1ch khi ch\u1ecdn \u0111\u00fang m\u00e1c (304\/316L) v\u00e0 ho\u00e0n thi\u1ec7n.<\/p>\n<h2 id=\"toc-1-nhung-mat-trai-can-nhin-thang\">Nh\u1eefng m\u1eb7t tr\u00e1i c\u1ea7n nh\u00ecn th\u1eb3ng<\/h2>\n<h3>1) Ph\u00e1t th\u1ea3i CO2e giai \u0111o\u1ea1n s\u1ea3n xu\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i cao<\/h3>\n<p>&#8211; Do luy\u1ec7n kim v\u00e0 h\u1ee3p kim (ni, cr, mo), ph\u00e1t th\u1ea3i \u201cembodied carbon\u201d c\u1ee7a inox cao h\u01a1n th\u00e9p carbon tr\u00ean m\u1ed7i kg.<br \/>\n&#8211; Ph\u1ea1m vi tham kh\u1ea3o (ph\u1ee5 thu\u1ed9c ngu\u1ed3n \u0111i\u1ec7n, h\u00e0m l\u01b0\u1ee3ng ph\u1ebf li\u1ec7u, c\u00f4ng ngh\u1ec7):<br \/>\n  &#8211; Austenitic 304\/304L: kho\u1ea3ng 5\u20137 kg CO2e\/kg<br \/>\n  &#8211; Austenitic 316\/316L: kho\u1ea3ng 6\u20137.5 kg CO2e\/kg<br \/>\n  &#8211; Ferritic 430\/441: kho\u1ea3ng 2.5\u20134 kg CO2e\/kg<br \/>\n  &#8211; Duplex 2205: kho\u1ea3ng 5\u20136 kg CO2e\/kg<br \/>\n&#8211; \u1ede khu v\u1ef1c d\u00f9ng \u0111i\u1ec7n than (ph\u1ed5 bi\u1ebfn t\u1ea1i ch\u00e2u \u00c1), gi\u00e1 tr\u1ecb c\u00f3 xu h\u01b0\u1edbng cao h\u01a1n so v\u1edbi nh\u00e0 m\u00e1y d\u00f9ng \u0111i\u1ec7n t\u00e1i t\u1ea1o.<\/p>\n<h3>2) T\u00e1c \u0111\u1ed9ng t\u1eeb khai th\u00e1c v\u00e0 x\u1eed l\u00fd h\u00f3a ch\u1ea5t<\/h3>\n<p>&#8211; Khai th\u00e1c niken, crom, molypden c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng sinh th\u00e1i n\u1ebfu kh\u00f4ng qu\u1ea3n tr\u1ecb t\u1ed1t chu\u1ed7i cung \u1ee9ng.<br \/>\n&#8211; C\u00f4ng \u0111o\u1ea1n t\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng (pickling\/passivation) s\u1eed d\u1ee5ng axit (HNO3\/HF). Nh\u00e0 m\u00e1y ti\u00eau chu\u1ea9n c\u1ea7n c\u00f3 h\u1ec7 th\u1ed1ng tu\u1ea7n ho\u00e0n \u2013 trung h\u00f2a n\u01b0\u1edbc th\u1ea3i v\u00e0 thu h\u1ed3i b\u00f9n kim lo\u1ea1i.<br \/>\n&#8211; L\u1ef1a ch\u1ecdn nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ea1t ISO 14001, c\u00f3 EPD minh b\u1ea1ch gi\u00fap gi\u1ea3m r\u1ee7i ro n\u00e0y.<\/p>\n<h2 id=\"toc-2-so-sanh-nhanh-voi-vat-lieu-thay-the\">So s\u00e1nh nhanh v\u1edbi v\u1eadt li\u1ec7u thay th\u1ebf<\/h2>\n<p>&#8211; So v\u1edbi th\u00e9p carbon s\u01a1n\/m\u1ea1 k\u1ebdm:<br \/>\n  &#8211; Th\u00e9p carbon r\u1ebb ban \u0111\u1ea7u nh\u01b0ng c\u1ea7n s\u01a1n l\u1ea1i 5\u20137 n\u0103m\/l\u1ea7n (\u0111\u00f4 th\u1ecb) ho\u1eb7c s\u1edbm h\u01a1n (ven bi\u1ec3n), ph\u00e1t sinh VOC, ch\u1ea5t th\u1ea3i m\u00e0i\/sandblast v\u00e0 d\u1eebng v\u1eadn h\u00e0nh.<br \/>\n  &#8211; Inox lo\u1ea1i b\u1ecf \u0111a s\u1ed1 chu k\u1ef3 b\u1ea3o tr\u00ec; v\u1ec1 t\u1ed5ng chi ph\u00ed \u2013 t\u1ed5ng ph\u00e1t th\u1ea3i theo v\u00f2ng \u0111\u1eddi, inox th\u01b0\u1eddng th\u1eafng \u1edf tu\u1ed5i th\u1ecd >20\u201330 n\u0103m.<br \/>\n&#8211; So v\u1edbi nh\u00f4m:<br \/>\n  &#8211; Nh\u00f4m nguy\u00ean sinh c\u00f3 ph\u00e1t th\u1ea3i s\u1ea3n xu\u1ea5t r\u1ea5t cao; nh\u00f4m t\u00e1i ch\u1ebf th\u00ec th\u1ea5p, nh\u01b0ng t\u00ednh \u0103n m\u00f2n khe\/k\u1ebd v\u00e0 \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n c\u1ea7n x\u1eed l\u00fd thi\u1ebft k\u1ebf.<br \/>\n  &#8211; Inox ch\u1ecbu m\u1ecfi, ch\u1ecbu nhi\u1ec7t t\u1ed1t, \u00edt gi\u00e3n n\u1edf h\u01a1n, ph\u00f9 h\u1ee3p k\u1ebft c\u1ea5u \u2013 h\u1ea1 t\u1ea7ng ph\u01a1i ngo\u00e0i tr\u1eddi.<br \/>\n&#8211; So v\u1edbi nh\u1ef1a k\u1ef9 thu\u1eadt:<br \/>\n  &#8211; Nh\u1ef1a nh\u1eb9, r\u1ebb, nh\u01b0ng tu\u1ed5i th\u1ecd ngo\u00e0i tr\u1eddi, ch\u1ecbu nhi\u1ec7t\/UV h\u1ea1n ch\u1ebf; nguy c\u01a1 vi nh\u1ef1a.<br \/>\n  &#8211; Inox b\u1ec1n c\u01a1 \u2013 nhi\u1ec7t, ch\u1ecbu tia UV t\u1ed1t, t\u00e1i ch\u1ebf cao, ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<p>K\u1ebft lu\u1eadn so s\u00e1nh: Inox th\u01b0\u1eddng v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 m\u00f4i tr\u01b0\u1eddng khi v\u00f2ng \u0111\u1eddi d\u00e0i, m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n v\u1eeba \u0111\u1ebfn n\u1eb7ng ho\u1eb7c khi chi ph\u00ed \u2013 r\u1ee7i ro b\u1ea3o tr\u00ec l\u00e0 \u0111\u00e1ng k\u1ec3.<\/p>\n<h2 id=\"toc-3-khi-nao-inox-thuc-su-xanh-theo-goc-nhin-lca\">Khi n\u00e0o inox th\u1ef1c s\u1ef1 \u201cxanh\u201d theo g\u00f3c nh\u00ecn LCA?<\/h2>\n<p>&#8211; Ch\u1ecdn \u0111\u00fang m\u00e1c cho m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u00e1nh h\u1ecfng s\u1edbm (thay th\u1ebf s\u1edbm l\u00e0 \u201ckh\u00f4ng xanh\u201d):<br \/>\n  &#8211; N\u1ed9i th\u1ea5t, kh\u00f4 r\u00e1o: 430, 304.<br \/>\n  &#8211; Ngo\u1ea1i th\u1ea5t \u0111\u00f4 th\u1ecb\/n\u1ed9i \u0111\u1ecba: 304L v\u1edbi thi\u1ebft k\u1ebf ch\u1ed1ng \u0111\u1ecdng mu\u1ed1i\/b\u1ee5i.<br \/>\n  &#8211; Ven bi\u1ec3n\/kh\u00ed quy\u1ec3n chloride, b\u1ec3 b\u01a1i n\u01b0\u1edbc m\u1eb7n: 316L ho\u1eb7c duplex 2205.<br \/>\n&#8211; \u01afu ti\u00ean ngu\u1ed3n inox c\u00f3 h\u00e0m l\u01b0\u1ee3ng ph\u1ebf li\u1ec7u cao v\u00e0 l\u00f2 EAF (Electric Arc Furnace), d\u00f9ng \u0111i\u1ec7n s\u1ea1ch.<br \/>\n&#8211; Thi\u1ebft k\u1ebf gi\u1ea3m b\u1ea3o tr\u00ec: tr\u00e1nh khe h\u1edf, \u0111\u1ecdng n\u01b0\u1edbc; b\u1ec1 m\u1eb7t m\u1ecbn \u0111\u1ec3 d\u1ec5 t\u1ef1 r\u1eeda tr\u00f4i; chi ti\u1ebft c\u00f3 kh\u1ea3 n\u0103ng th\u00e1o r\u1eddi \u0111\u1ec3 t\u00e1i ch\u1ebf.<br \/>\n&#8211; N\u1ebfu v\u00f2ng \u0111\u1eddi d\u1ef1 ki\u1ebfn >25\u201330 n\u0103m v\u00e0 h\u1ea1n ch\u1ebf \u0111\u01b0\u1ee3c s\u01a1n\/b\u1ea3o tr\u00ec chu k\u1ef3, inox th\u01b0\u1eddng b\u00f9 \u0111\u1eafp \u0111\u01b0\u1ee3c ph\u00e1t th\u1ea3i ban \u0111\u1ea7u.<\/p>\n<h2 id=\"toc-4-huong-dan-lua-chon-inox-xanh-cho-du-an-tai-viet-na\">H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn inox \u201cxanh\u201d cho d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam<\/h2>\n<h3>1) L\u1ef1a ch\u1ecdn m\u00e1c v\u00e0 b\u1ec1 m\u1eb7t theo m\u00f4i tr\u01b0\u1eddng<\/h3>\n<p>&#8211; Tr\u00e1nh \u201cqu\u00e1 \u2013 ho\u1eb7c \u2013 d\u01b0\u1edbi\u201d ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; 201: ch\u1ec9 d\u00f9ng n\u1ed9i th\u1ea5t kh\u00f4 r\u00e1o; kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho ngo\u1ea1i th\u1ea5t\/\u1ea9m m\u1eb7n v\u00ec tu\u1ed5i th\u1ecd th\u1ea5p \u2192 t\u1ed5ng ph\u00e1t th\u1ea3i v\u00f2ng \u0111\u1eddi cao.<br \/>\n  &#8211; 304\/304L: \u0111a d\u1ee5ng cho \u0111\u00f4 th\u1ecb; ngo\u00e0i kh\u01a1i ho\u1eb7c g\u1ea7n bi\u1ec3n c\u1ea7n 316L\/duplex.<br \/>\n&#8211; B\u1ec1 m\u1eb7t: 2B ho\u1eb7c No.4 m\u1ecbn gi\u00fap gi\u1ea3m b\u00e1m b\u1ee5i\/mu\u1ed1i, \u00edt h\u00f3a ch\u1ea5t v\u1ec7 sinh; hairline\/BA cho n\u1ed9i th\u1ea5t trang tr\u00ed; tr\u00e1nh b\u1ec1 m\u1eb7t th\u00f4 t\u1ea1i bi\u1ec3n.<\/p>\n<h3>2) H\u1ed3 s\u01a1 m\u00f4i tr\u01b0\u1eddng n\u00ean y\u00eau c\u1ea7u t\u1eeb nh\u00e0 cung c\u1ea5p<\/h3>\n<p>&#8211; EPD (Environmental Product Declaration) theo ISO 14025\/EN 15804 cho m\u00e1c inox c\u1ee5 th\u1ec3.<br \/>\n&#8211; Ch\u1ec9 s\u1ed1 h\u00e0m l\u01b0\u1ee3ng ph\u1ebf li\u1ec7u (post-consumer + pre-consumer).<br \/>\n&#8211; H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd m\u00f4i tr\u01b0\u1eddng ISO 14001; cam k\u1ebft REACH\/RoHS.<br \/>\n&#8211; MTC (Mill Test Certificate) \u0111\u00fang m\u00e1c (ASTM A240\/EN 10088) \u0111\u1ec3 tr\u00e1nh d\u00f9ng sai h\u1ee3p kim.<\/p>\n<h3>3) Thi\u1ebft k\u1ebf \u2013 gia c\u00f4ng th\u00e2n thi\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/h3>\n<p>&#8211; T\u1ed1i \u01b0u chi\u1ec1u d\u00e0y b\u1eb1ng t\u00ednh to\u00e1n c\u01a1 h\u1ecdc thay v\u00ec \u201c\u0111\u1ed9i d\u00e0y an to\u00e0n\u201d qu\u00e1 m\u1ee9c.<br \/>\n&#8211; Tr\u00e1nh b\u1eaby khe (crevice), \u0111\u1ea3m b\u1ea3o tho\u00e1t n\u01b0\u1edbc\/tho\u00e1t \u1ea9m; bo m\u00e9p, tr\u00e1nh g\u1edd s\u1eafc b\u00e1m b\u1ea9n.<br \/>\n&#8211; H\u1ea1n ch\u1ebf nhi\u1ec5m s\u1eaft ngo\u1ea1i lai khi gia c\u00f4ng (kh\u00f4ng d\u00f9ng c\u00f9ng d\u1ee5ng c\u1ee5 v\u1edbi th\u00e9p carbon), tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng \u1ed1 \u201cm\u00e0u tr\u00e0\u201d.<br \/>\n&#8211; H\u00e0n xong n\u00ean t\u1ea9y g\u1ec9 \u2013 th\u1ee5 \u0111\u1ed9ng v\u00f9ng m\u1ed1i h\u00e0n; thu gom \u2013 trung h\u00f2a dung d\u1ecbch th\u1ea3i.<br \/>\n&#8211; Thi\u1ebft k\u1ebf cho th\u00e1o l\u1eafp \u2013 ph\u00e2n lo\u1ea1i v\u1eadt li\u1ec7u khi h\u1ebft v\u00f2ng \u0111\u1eddi (\u1ed1c, bul\u00f4ng thay v\u00ec h\u00e0n c\u1ed1 \u0111\u1ecbnh to\u00e0n b\u1ed9 khi kh\u00f4ng c\u1ea7n).<\/p>\n<h3>4) B\u1ea3o tr\u00ec th\u1ea5p ph\u00e1t th\u1ea3i<\/h3>\n<p>&#8211; L\u1ecbch v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch v\u00e0 ch\u1ea5t t\u1ea9y trung t\u00ednh; tr\u00e1nh clo\/axit m\u1ea1nh.<br \/>\n&#8211; \u1ede khu v\u1ef1c ven bi\u1ec3n H\u00e0 N\u1ed9i \u2013 Qu\u1ea3ng Ninh\/H\u1ea3i Ph\u00f2ng: r\u1eeda tr\u00f4i mu\u1ed1i \u0111\u1ecbnh k\u1ef3 1\u20133 th\u00e1ng\/l\u1ea7n cho h\u1ea1ng m\u1ee5c ngo\u00e0i tr\u1eddi, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd, gi\u1ea3m nhu c\u1ea7u ph\u1ee5c h\u1ed3i b\u1ec1 m\u1eb7t.<\/p>\n<h3>5) V\u1eadn h\u00e0nh chu\u1ed7i t\u00e1i ch\u1ebf<\/h3>\n<p>&#8211; Thu gom phoi \u2013 ph\u1ebf inox ri\u00eang, kh\u00f4ng l\u1eabn th\u00e9p carbon\/nh\u00f4m.<br \/>\n&#8211; L\u00e0m vi\u1ec7c v\u1edbi nh\u00e0 cung c\u1ea5p c\u00f3 ch\u00ednh s\u00e1ch thu h\u1ed3i ph\u1ebf li\u1ec7u \u0111\u1ec3 \u0111\u01b0a v\u1ec1 l\u00f2 EAF, duy tr\u00ec v\u00f2ng tu\u1ea7n ho\u00e0n.<\/p>\n<h2 id=\"toc-5-vi-du-ung-dung-thuc-te\">V\u00ed d\u1ee5 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n<p>&#8211; Lan can ngo\u00e0i tr\u1eddi khu \u0111\u00f4 th\u1ecb n\u1ed9i \u0111\u1ecba (kh\u00f4ng g\u1ea7n bi\u1ec3n): 304L \u0111\u00e1nh b\u00f3ng m\u1ecbn, thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc t\u1ed1t \u2192 kh\u00f4ng c\u1ea7n s\u01a1n, v\u1ec7 sinh n\u01b0\u1edbc \u2013 x\u00e0 ph\u00f2ng \u2192 v\u00f2ng \u0111\u1eddi >30 n\u0103m, h\u1ea7u nh\u01b0 kh\u00f4ng b\u1ea3o tr\u00ec.<br \/>\n&#8211; K\u1ebft c\u1ea5u \u2013 \u1ed1p ngo\u00e0i nh\u00e0 ven bi\u1ec3n: 316L ho\u1eb7c duplex 2205, b\u1ec1 m\u1eb7t 2B\/No.4, tr\u00e1nh khe gi\u1eef mu\u1ed1i \u2192 gi\u1ea3m r\u1ee7i ro r\u1ed7 do chloride, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd.<br \/>\n&#8211; Thi\u1ebft b\u1ecb x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i: 304L\/316L cho b\u1ec3 \u2013 \u0111\u01b0\u1eddng \u1ed1ng, \u0111\u1ea3m b\u1ea3o t\u1ea9y th\u1ee5 \u0111\u1ed9ng sau h\u00e0n \u2192 \u0111\u1ed9 b\u1ec1n h\u00f3a ch\u1ea5t, gi\u1ea3m thay th\u1ebf.<\/p>\n<h2 id=\"toc-6-cac-cau-hoi-thuong-gap\">C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>Inox c\u00f3 \u201cth\u00f4i\u201d niken g\u00e2y h\u1ea1i kh\u00f4ng?<\/h3>\n<p>&#8211; V\u1edbi m\u00e1c ph\u00f9 h\u1ee3p (304\/316L) v\u00e0 b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n \u0111\u00fang, th\u00f4i nhi\u1ec5m Ni \u1edf m\u1ee9c r\u1ea5t th\u1ea5p, an to\u00e0n cho ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m \u2013 n\u01b0\u1edbc theo ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf. N\u1ebfu ng\u01b0\u1eddi d\u00f9ng d\u1ecb \u1ee9ng Ni n\u1eb7ng, c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc ferritic (430) cho h\u1ea1ng m\u1ee5c kh\u00f4ng y\u00eau c\u1ea7u ch\u1ed1ng \u0103n m\u00f2n cao.<\/p>\n<h3>V\u00ec sao inox v\u1eabn c\u00f3 v\u1ebft \u1ed1 \u201cm\u00e0u tr\u00e0\u201d?<\/h3>\n<p>&#8211; Do b\u00e1m b\u1ea9n, mu\u1ed1i, nhi\u1ec5m s\u1eaft ngo\u1ea1i lai ho\u1eb7c thi\u1ebft k\u1ebf \u0111\u1ecdng n\u01b0\u1edbc. \u0110\u00e2y kh\u00f4ng ph\u1ea3i \u201cr\u1ec9 s\u00e9t\u201d c\u1ea5u tr\u00fac. X\u1eed l\u00fd b\u1eb1ng t\u1ea9y r\u1eeda chuy\u00ean d\u1ee5ng v\u00e0 c\u1ea3i thi\u1ec7n thi\u1ebft k\u1ebf\/b\u1ea3o tr\u00ec.<\/p>\n<h3>Inox 201 c\u00f3 \u201cxanh\u201d v\u00ec r\u1ebb h\u01a1n?<\/h3>\n<p>&#8211; Kh\u00f4ng nh\u1ea5t thi\u1ebft. N\u1ebfu d\u00f9ng sai m\u00f4i tr\u01b0\u1eddng d\u1eabn \u0111\u1ebfn h\u1ecfng s\u1edbm, t\u1ed5ng ph\u00e1t th\u1ea3i v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi t\u0103ng. \u201cXanh\u201d ph\u1ea3i t\u00ednh theo LCA, kh\u00f4ng ch\u1ec9 gi\u00e1 ban \u0111\u1ea7u.<\/p>\n<h2 id=\"toc-7-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Inox l\u00e0 v\u1eadt li\u1ec7u th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng khi \u0111\u00e1nh gi\u00e1 theo v\u00f2ng \u0111\u1eddi: c\u1ef1c k\u1ef3 b\u1ec1n, t\u00e1i ch\u1ebf g\u1ea7n nh\u01b0 v\u00f4 h\u1ea1n, \u00edt c\u1ea7n s\u01a1n\/b\u1ea3o tr\u00ec v\u00e0 an to\u00e0n s\u1eed d\u1ee5ng. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u1edbn nh\u1ea5t l\u00e0 ph\u00e1t th\u1ea3i s\u1ea3n xu\u1ea5t ban \u0111\u1ea7u t\u01b0\u01a1ng \u0111\u1ed1i cao; v\u00ec v\u1eady hi\u1ec7u qu\u1ea3 m\u00f4i tr\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c ch\u1ecdn \u0111\u00fang m\u00e1c \u2013 b\u1ec1 m\u1eb7t, \u01b0u ti\u00ean ngu\u1ed3n c\u00f3 h\u00e0m l\u01b0\u1ee3ng ph\u1ebf li\u1ec7u cao, c\u00f4ng ngh\u1ec7 luy\u1ec7n EAF, v\u00e0 thi\u1ebft k\u1ebf \u0111\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd, gi\u1ea3m b\u1ea3o tr\u00ec. V\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh t\u1ea1i Vi\u1ec7t Nam, \u0111\u1eb7c bi\u1ec7t h\u1ea1ng m\u1ee5c ngo\u00e0i tr\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, inox th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn \u201cxanh\u201d v\u00e0 kinh t\u1ebf nh\u1ea5t x\u00e9t tr\u00ean 25\u201350 n\u0103m s\u1eed d\u1ee5ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Inox th\u00e2n thi\u1ec7n khi x\u00e9t to\u00e0n v\u00f2ng \u0111\u1eddi: b\u1ec1n, t\u00e1i ch\u1ebf g\u1ea7n 100%, \u00edt b\u1ea3o tr\u00ec. Tuy nhi\u00ean ph\u00e1t th\u1ea3i s\u1ea3n xu\u1ea5t cao. B\u00e0i vi\u1ebft h\u01b0\u1edbng d\u1eabn ch\u1ecdn m\u00e1c v\u00e0 thi\u1ebft k\u1ebf \u201cxanh\u201d.<\/p>\n","protected":false},"author":7,"featured_media":1050,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1112","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\/1112","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=1112"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1112\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1050"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}