{"id":10706,"date":"2024-09-24T01:44:00","date_gmt":"2024-09-23T17:44:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=10706"},"modified":"2025-02-17T19:02:45","modified_gmt":"2025-02-17T11:02:45","slug":"carbon-steel-rust","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/knowledge\/carbon-steel-rust\/","title":{"rendered":"Th\u00e9p cacbon c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?"},"content":{"rendered":"<p>C\u00d3. M\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m l\u1edbn c\u1ee7a th\u00e9p cacbon l\u00e0 d\u1ec5 b\u1ecb r\u1ec9 s\u00e9t. \u0110\u1ecdc b\u00e0i vi\u1ebft c\u1ee7a ch\u00fang t\u00f4i s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u l\u00fd do t\u1ea1i sao th\u00e9p cacbon b\u1ecb r\u1ec9 s\u00e9t, c\u00e1ch ng\u0103n ng\u1eeba r\u1ec9 s\u00e9t v\u00e0 lo\u1ea1i kim lo\u1ea1i ho\u1eb7c h\u1ee3p kim n\u00e0o \u00edt b\u1ecb r\u1ec9 s\u00e9t h\u01a1n, gi\u00fap b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t v\u1ec1 vi\u1ec7c s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o d\u01b0\u1ee1ng v\u1eadt li\u1ec7u.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p Cacbon l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p cacbon l\u00e0 m\u1ed9t lo\u1ea1i th\u00e9p ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb s\u1eaft v\u00e0 cacbon, h\u00e0m l\u01b0\u1ee3ng cacbon th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 0,02% \u0111\u1ebfn 2,1%, v\u00e0 \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh h\u00e0m l\u01b0\u1ee3ng cacbon. Tuy nhi\u00ean, th\u00e9p cacbon c\u0169ng c\u00f3 th\u1ec3 c\u00f3 ngh\u0129a l\u00e0 th\u00e9p h\u1ee3p kim ngo\u1ea1i tr\u1eeb th\u00e9p kh\u00f4ng g\u1ec9.<\/p><h3 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p cacbon<\/h3><p><strong>Th\u00e9p Carbon Th\u1ea5p<\/strong> (0,05% \u0111\u1ebfn 0,25% Carbon): <a href=\"https:\/\/steelprogroup.com\/vi\/low-carbon-steel\/\">Th\u00e9p cacbon th\u1ea5p<\/a> c\u00f3 \u0111\u1ed9 d\u1ebbo v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t, nh\u01b0ng \u0111\u1ed9 b\u1ec1n th\u1ea5p. Lo\u1ea1i th\u00e9p n\u00e0y m\u1ec1m h\u01a1n v\u00e0 d\u1ec5 gia c\u00f4ng h\u01a1n, th\u00edch h\u1ee3p cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng h\u00e0n t\u1ed1t, ch\u1eb3ng h\u1ea1n nh\u01b0 k\u1ebft c\u1ea5u x\u00e2y d\u1ef1ng v\u00e0 th\u00e2n xe \u00f4 t\u00f4.<\/p><p><strong>Th\u00e9p Cacbon trung b\u00ecnh <\/strong>(0,25% \u0111\u1ebfn 0,60% Carbon): <a href=\"https:\/\/steelprogroup.com\/vi\/medium-carbon-steel\/\">Th\u00e9p cacbon trung b\u00ecnh<\/a> c\u00f3 t\u00ednh ch\u1ea5t t\u1ed5ng th\u1ec3 t\u1ed1t, nh\u01b0ng kh\u1ea3 n\u0103ng h\u00e0n k\u00e9m. Lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng cao, th\u00edch h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed v\u00e0 k\u1ebft c\u1ea5u, ch\u1eb3ng h\u1ea1n nh\u01b0 \u1ed5 tr\u1ee5c v\u00e0 b\u00e1nh r\u0103ng.<\/p><p><strong>Th\u00e9p Cacbon Cao<\/strong> (Tr\u00ean 0,60% Carbon): <a href=\"https:\/\/steelprogroup.com\/vi\/high-carbon-steel\/\">Th\u00e9p cacbon cao<\/a> r\u1ea5t gi\u00f2n v\u00e0 kh\u00f3 h\u00e0n, nh\u01b0ng c\u00f3 \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 \u0111\u1ed9 b\u1ec1n cao nh\u01b0 dao, d\u1ee5ng c\u1ee5 v\u00e0 l\u00f2 xo.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p cacbon c\u00f3 ch\u1ed1ng g\u1ec9 kh\u00f4ng?<\/h2><p>KH\u00d4NG, <strong>th\u00e9p cacbon<\/strong> kh\u00f4ng ch\u1ed1ng g\u1ec9. Th\u00e9p cacbon r\u1ea5t d\u1ec5 b\u1ecb g\u1ec9 v\u00e0 \u0103n m\u00f2n khi ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt v\u00ec n\u00f3 kh\u00f4ng c\u00f3 \u0111\u1ee7 h\u00e0m l\u01b0\u1ee3ng crom, c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o th\u00e0nh l\u1edbp oxit b\u1ea3o v\u1ec7 ch\u1ed1ng g\u1ec9.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p cacbon cao c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h3><p>\u0110\u00fang, <strong>th\u00e9p cacbon cao<\/strong> d\u1ec5 b\u1ecb r\u1ec9 s\u00e9t. Gi\u1ed1ng nh\u01b0 c\u00e1c lo\u1ea1i th\u00e9p cacbon kh\u00e1c, th\u00e9p cacbon thi\u1ebfu m\u1ed9t l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 crom (c\u00f3 trong th\u00e9p kh\u00f4ng g\u1ec9), do \u0111\u00f3 kh\u00f4ng t\u1ea1o th\u00e0nh l\u1edbp oxit b\u1ea3o v\u1ec7 \u0111\u1ec3 ch\u1ed1ng r\u1ec9 s\u00e9t. Khi ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m, \u0111\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, th\u00e9p cacbon cao s\u1ebd b\u1ecb oxy h\u00f3a v\u00e0 h\u00ecnh th\u00e0nh r\u1ec9 s\u00e9t.<\/p><p>\u0110\u1ec3 ch\u1ed1ng g\u1ec9, th\u00e9p cacbon cao th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u1ee7, s\u01a1n ho\u1eb7c x\u1eed l\u00fd b\u1eb1ng l\u1edbp ho\u00e0n thi\u1ec7n b\u1ea3o v\u1ec7 ho\u1eb7c c\u1ea7n b\u1ea3o d\u01b0\u1ee1ng th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 \u0103n m\u00f2n.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p cacbon c\u00f3 b\u1ecb g\u1ec9 trong n\u01b0\u1edbc kh\u00f4ng?<\/h3><p>\u0110\u00fang, <strong>th\u00e9p cacbon<\/strong> s\u1ebd b\u1ecb r\u1ec9 s\u00e9t trong n\u01b0\u1edbc, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u1ebfu n\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng l\u1edbp ph\u1ee7 ho\u1eb7c l\u1edbp ho\u00e0n thi\u1ec7n. Khi th\u00e9p cacbon ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u1ebfu c\u00f3 oxy, n\u00f3 s\u1ebd ph\u1ea3n \u1ee9ng \u0111\u1ec3 t\u1ea1o th\u00e0nh <strong>oxit s\u1eaft<\/strong> (g\u1ec9 s\u00e9t). Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra nhanh h\u01a1n trong m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc m\u1eb7n ho\u1eb7c c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n kh\u00e1c do \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n cao h\u01a1n, th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh oxy h\u00f3a.<\/p><p>\u0110\u1ec3 ch\u1ed1ng g\u1ec9, th\u00e9p cacbon c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u1ee7, s\u01a1n ho\u1eb7c x\u1eed l\u00fd b\u1eb1ng ch\u1ea5t \u1ee9c ch\u1ebf g\u1ec9 khi s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng th\u01b0\u1eddng xuy\u00ean ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p cacbon c\u00f3 b\u1ecb g\u1ec9 khi \u1edf ngo\u00e0i tr\u1eddi kh\u00f4ng?<\/h3><p>\u0110\u00fang, <strong>th\u00e9p cacbon<\/strong> s\u1ebd b\u1ecb r\u1ec9 s\u00e9t khi ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 \u0111\u00fang c\u00e1ch. C\u00e1c \u0111i\u1ec1u ki\u1ec7n ngo\u00e0i tr\u1eddi, bao g\u1ed3m \u0111\u1ed9 \u1ea9m, m\u01b0a, \u0111\u1ed9 \u1ea9m v\u00e0 oxy, t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng l\u00fd t\u01b0\u1edfng cho s\u1ef1 h\u00ecnh th\u00e0nh <strong>r\u1ec9 s\u00e9t<\/strong> (oxit s\u1eaft) tr\u00ean th\u00e9p cacbon.<\/p><p>C\u00e1c y\u1ebfu t\u1ed1 l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 r\u1ec9 s\u00e9t \u1edf ngo\u00e0i tr\u1eddi bao g\u1ed3m:<\/p><ul class=\"wp-block-list\"><li><strong>M\u01b0a v\u00e0 \u0111\u1ed9 \u1ea9m<\/strong>: Nh\u1eefng th\u1ee9 n\u00e0y t\u1ea1o ra \u0111\u1ed9 \u1ea9m, l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 oxy h\u00f3a.<\/li>\n\n<li><strong>Bi\u1ebfn \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9<\/strong>: S\u1ef1 ng\u01b0ng t\u1ee5 c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh khi nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i, l\u00e0m t\u0103ng th\u00eam \u0111\u1ed9 \u1ea9m.<\/li>\n\n<li><strong>Mu\u1ed1i<\/strong> (\u1edf m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n): N\u01b0\u1edbc m\u1eb7n ho\u1eb7c kh\u00f4ng kh\u00ed ch\u1ee9a mu\u1ed1i l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 \u0103n m\u00f2n \u0111\u00e1ng k\u1ec3.<\/li><\/ul><p>\u0110\u1ec3 ch\u1ed1ng g\u1ec9, th\u00e9p cacbon s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u1ee7 c\u00e1c l\u1edbp b\u1ea3o v\u1ec7 nh\u01b0 s\u01a1n, m\u1ea1 k\u1ebdm ho\u1eb7c c\u00e1c l\u1edbp ho\u00e0n thi\u1ec7n ch\u1ed1ng g\u1ec9 kh\u00e1c.<\/p><h3 class=\"wp-block-heading\">Ch\u1ea3o th\u00e9p cacbon c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h3><p>V\u00e2ng, m\u1ed9t <strong>ch\u1ea3o th\u00e9p cacbon<\/strong> c\u00f3 th\u1ec3 b\u1ecb r\u1ec9 s\u00e9t n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c t\u00f4i luy\u1ec7n ho\u1eb7c b\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang c\u00e1ch. Th\u00e9p cacbon, gi\u1ed1ng nh\u01b0 gang, d\u1ec5 b\u1ecb r\u1ec9 s\u00e9t khi ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m ho\u1eb7c n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c s\u1ea5y kh\u00f4 k\u1ef9 sau khi r\u1eeda.<\/p><p>\u0110\u1ec3 ng\u0103n ng\u1eeba r\u1ec9 s\u00e9t tr\u00ean ch\u1ea3o th\u00e9p cacbon:<\/p><ol class=\"wp-block-list\"><li><strong>N\u00eam gia v\u1ecb v\u00e0o ch\u1ea3o<\/strong>:M\u1ed9t l\u1edbp d\u1ea7u b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c ph\u1ee7 l\u00ean ch\u1ea3o th\u00f4ng qua qu\u00e1 tr\u00ecnh t\u1ea9m gia v\u1ecb, t\u1ea1o ra b\u1ec1 m\u1eb7t ch\u1ed1ng d\u00ednh v\u00e0 b\u1ea3o v\u1ec7 ch\u1ea3o kh\u1ecfi \u0111\u1ed9 \u1ea9m.<\/li>\n\n<li><strong>L\u00e0m kh\u00f4 ngay l\u1eadp t\u1ee9c<\/strong>:Sau khi r\u1eeda, ch\u1ea3o ph\u1ea3i \u0111\u01b0\u1ee3c lau kh\u00f4 ho\u00e0n to\u00e0n \u0111\u1ec3 lo\u1ea1i b\u1ecf h\u1ebft \u0111\u1ed9 \u1ea9m c\u00f2n s\u00f3t l\u1ea1i.<\/li>\n\n<li><strong>B\u00f4i d\u1ea7u<\/strong>:N\u00ean b\u00f4i m\u1ed9t l\u1edbp d\u1ea7u m\u1ecfng sau m\u1ed7i l\u1ea7n s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u00fap ch\u1ed1ng g\u1ec9.<\/li><\/ol><p>N\u1ebfu r\u1ec9 s\u00e9t h\u00ecnh th\u00e0nh, b\u1ea1n c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf b\u1eb1ng len th\u00e9p ho\u1eb7c ch\u00e0 r\u1eeda, sau \u0111\u00f3 x\u00e1t l\u1ea1i ch\u1ea3o.<\/p><h2 class=\"wp-block-heading\">T\u1ea1i sao th\u00e9p cacbon b\u1ecb g\u1ec9?<\/h2><p>V\u1ea5n \u0111\u1ec1 r\u1ec9 s\u00e9t c\u1ee7a th\u00e9p cacbon ch\u1ee7 y\u1ebfu li\u00ean quan \u0111\u1ebfn th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng. Th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a th\u00e9p cacbon l\u00e0 s\u1eaft, d\u1ec5 b\u1ecb oxy h\u00f3a trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt ho\u1eb7c c\u00f3 ch\u1ee9a oxy. <\/p><h3 class=\"wp-block-heading\">Ph\u1ea3n \u1ee9ng oxy h\u00f3a<\/h3><p>S\u1eaft ph\u1ea3n \u1ee9ng v\u1edbi oxy d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a oxy v\u00e0 \u0111\u1ed9 \u1ea9m t\u1ea1o th\u00e0nh oxit s\u1eaft (g\u1ec9 s\u1eaft). Oxit s\u1eaft ti\u1ebfp t\u1ee5c b\u1ecb oxy h\u00f3a t\u1ea1o th\u00e0nh g\u1ec9 s\u1eaft m\u00e0u n\u00e2u \u0111\u1ecf.<\/p><h3 class=\"wp-block-heading\">Ph\u1ea7n m\u1edf r\u1ed9ng r\u1ec9 s\u00e9t<\/h3><p>M\u1ed9t khi r\u1ec9 s\u00e9t h\u00ecnh th\u00e0nh, n\u00f3 s\u1ebd h\u1ea5p th\u1ee5 th\u00eam \u0111\u1ed9 \u1ea9m v\u00e0 oxy h\u00f3a, khi\u1ebfn qu\u00e1 tr\u00ecnh \u0103n m\u00f2n ti\u1ebfp t\u1ee5c. R\u1ec9 s\u00e9t kh\u00f4ng ch\u1ec9 l\u00e0m h\u1ecfng v\u1ebb \u0111\u1eb9p ban \u0111\u1ea7u c\u1ee7a kim lo\u1ea1i m\u00e0 c\u00f2n d\u1ea7n \u0103n m\u00f2n v\u1eadt li\u1ec7u c\u1ee7a n\u00f3, khi\u1ebfn \u0111\u1ed9 d\u00e0y c\u1ee7a kim lo\u1ea1i gi\u1ea3m d\u1ea7n, cu\u1ed1i c\u00f9ng l\u00e0m suy y\u1ebfu kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a kim lo\u1ea1i.<\/p><h3 class=\"wp-block-heading\">T\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng<\/h3><p>\u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00e1c \u0111\u1ed9ng l\u1edbn \u0111\u1ebfn s\u1ef1 \u0103n m\u00f2n c\u1ee7a th\u00e9p cacbon. V\u00ed d\u1ee5, \u0111\u1ed9 \u1ea9m cao, h\u01a1i mu\u1ed1i, m\u00f4i tr\u01b0\u1eddng axit, v.v. s\u1ebd \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh \u0103n m\u00f2n.&nbsp;<\/p><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i \u0103n m\u00f2n th\u00e9p cacbon<\/h2><h3 class=\"wp-block-heading\">\u0102n m\u00f2n \u0111\u1ed3ng \u0111\u1ec1u<\/h3><p>\u0102n m\u00f2n \u0111\u1ed3ng \u0111\u1ec1u l\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a \u0103n m\u00f2n tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i, th\u01b0\u1eddng l\u00e0 do ti\u1ebfp x\u00fac l\u00e2u d\u00e0i gi\u1eefa kim lo\u1ea1i v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n (nh\u01b0 n\u01b0\u1edbc ho\u1eb7c kh\u00ed axit). \u0102n m\u00f2n \u0111\u1ed3ng \u0111\u1ec1u s\u1ebd khi\u1ebfn \u0111\u1ed9 d\u00e0y c\u1ee7a kim lo\u1ea1i gi\u1ea3m d\u1ea7n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n k\u1ebft c\u1ea5u c\u1ee7a kim lo\u1ea1i.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n c\u1ee5c b\u1ed9<\/h3><p>\u0102n m\u00f2n c\u1ee5c b\u1ed9 bao g\u1ed3m \u0103n m\u00f2n r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf. R\u1ed7 th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng c\u00e1c l\u1ed7 nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i, trong khi \u0103n m\u00f2n khe h\u1edf x\u1ea3y ra \u1edf c\u00e1c v\u1ebft n\u1ee9t ho\u1eb7c kho\u1ea3ng h\u1edf tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i. \u0102n m\u00f2n c\u1ee5c b\u1ed9 c\u00f3 xu h\u01b0\u1edbng t\u1eadp trung \u1edf m\u1ed9t s\u1ed1 khu v\u1ef1c c\u1ee5 th\u1ec3, c\u00f3 th\u1ec3 do l\u1edbp b\u1ea3o v\u1ec7 c\u1ee5c b\u1ed9 b\u1ecb h\u01b0 h\u1ecfng ho\u1eb7c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u.<\/p><h3 class=\"wp-block-heading\">N\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t<\/h3><p>Lo\u1ea1i \u0103n m\u00f2n n\u00e0y x\u1ea3y ra tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i ch\u1ecbu \u1ee9ng su\u1ea5t b\u00ean ngo\u00e0i, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n. N\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t c\u00f3 th\u1ec3 g\u00e2y n\u1ee9t gi\u00f2n v\u00e0 g\u00e3y v\u1eadt li\u1ec7u, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u.<\/p><h3 class=\"wp-block-heading\">S\u1ef1 gi\u00f2n c\u1ee7a hydro<\/h3><p>Gi\u00f2n hydro l\u00e0 s\u1ef1 t\u00edch t\u1ee5 hydro b\u00ean trong kim lo\u1ea1i, l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ebbo dai c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 sau \u0111\u00f3 g\u00e2y ra g\u00e3y gi\u00f2n. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y th\u01b0\u1eddng x\u1ea3y ra \u1edf kim lo\u1ea1i trong m\u00f4i tr\u01b0\u1eddng hydro, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1eadt li\u1ec7u kim lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb n\u00e9n hydro.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n \u0111i\u1ec7n h\u00f3a<\/h3><p>\u0102n m\u00f2n \u0111i\u1ec7n h\u00f3a l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng \u0103n m\u00f2n c\u1ee5c b\u1ed9 trong \u0111\u00f3 khi hai kim lo\u1ea1i c\u00f3 \u0111i\u1ec7n th\u1ebf kh\u00e1c nhau ti\u1ebfp x\u00fac v\u1edbi nhau trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, kim lo\u1ea1i c\u00f3 \u0111i\u1ec7n th\u1ebf th\u1ea5p h\u01a1n (anot) s\u1ebd b\u1ecb \u0103n m\u00f2n nhanh h\u01a1n do ch\u00eanh l\u1ec7ch \u0111i\u1ec7n th\u1ebf, trong khi kim lo\u1ea1i c\u00f3 \u0111i\u1ec7n th\u1ebf cao h\u01a1n (catot) s\u1ebd b\u1ecb \u0103n m\u00f2n ch\u1eadm h\u01a1n.<\/p><h2 class=\"wp-block-heading\">Lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t th\u00e9p cacbon<\/h2><h3 class=\"wp-block-heading\">Lo\u1ea1i b\u1ecf c\u01a1 h\u1ecdc<\/h3><p>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 c\u01a1 h\u1ecdc nh\u01b0 gi\u1ea5y nh\u00e1m, b\u00e0n ch\u1ea3i s\u1eaft ho\u1eb7c b\u00e1nh m\u00e0i c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t hi\u1ec7u qu\u1ea3 kh\u1ecfi b\u1ec1 m\u1eb7t. Th\u00edch h\u1ee3p cho r\u1ec9 s\u00e9t nh\u1eb9. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p lo\u1ea1i b\u1ecf c\u01a1 h\u1ecdc nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3, nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i nh\u1eefng v\u1ebft x\u01b0\u1edbc nh\u1ecf \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u1ebb ngo\u00e0i c\u1ee7a kim lo\u1ea1i.<\/p><h3 class=\"wp-block-heading\">Lo\u1ea1i b\u1ecf h\u00f3a ch\u1ea5t<\/h3><p>Ng\u00e2m ho\u1eb7c lau b\u1ec1 m\u1eb7t kim lo\u1ea1i b\u1eb1ng ch\u1ea5t t\u1ea9y g\u1ec9 h\u00f3a h\u1ecdc ho\u1eb7c ch\u1ea5t t\u1ea9y r\u1eeda c\u00f3 t\u00ednh axit (nh\u01b0 axit photphoric ho\u1eb7c axit clohydric) c\u00f3 th\u1ec3 h\u00f2a tan r\u1ec9 s\u00e9t. Khi s\u1eed d\u1ee5ng ch\u1ea5t t\u1ea9y g\u1ec9 h\u00f3a h\u1ecdc, h\u00e3y c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng b\u1ec1 m\u1eb7t kim lo\u1ea1i v\u00e0 v\u1eadn h\u00e0nh theo h\u01b0\u1edbng d\u1eabn. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ea9y g\u1ec9 h\u00f3a h\u1ecdc ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c khu v\u1ef1c r\u1ed9ng l\u1edbn ho\u1eb7c r\u1ec9 s\u00e9t nghi\u00eam tr\u1ecdng.<\/p><h3 class=\"wp-block-heading\">T\u1ea9y r\u1ec9 s\u00e9t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n ph\u00e2n<\/h3><p>R\u1ec9 s\u00e9t \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng ch\u1ea5t \u0111i\u1ec7n ph\u00e2n v\u00e0 d\u00f2ng \u0111i\u1ec7n th\u00f4ng qua qu\u00e1 tr\u00ecnh \u0111i\u1ec7n ph\u00e2n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i c\u00f3 h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p v\u00e0 c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t s\u00e2u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. Lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t b\u1eb1ng \u0111i\u1ec7n ph\u00e2n \u0111\u00f2i h\u1ecfi thi\u1ebft b\u1ecb v\u00e0 c\u00f4ng ngh\u1ec7 \u0111\u1eb7c bi\u1ec7t, nh\u01b0ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t t\u1ed1t.<\/p><h3 class=\"wp-block-heading\">Phun c\u00e1t<\/h3><p>S\u1eed d\u1ee5ng h\u1ea1t c\u00e1t phun t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 x\u1eed l\u00fd b\u1ec1 m\u1eb7t kim lo\u1ea1i c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t hi\u1ec7u qu\u1ea3 v\u00e0 l\u00e0m nh\u00e1m b\u1ec1 m\u1eb7t kim lo\u1ea1i \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a l\u1edbp ph\u1ee7 ti\u1ebfp theo. Phun c\u00e1t th\u00edch h\u1ee3p cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng v\u1ec7 sinh quy m\u00f4 l\u1edbn, nh\u01b0ng \u0111\u00f2i h\u1ecfi thi\u1ebft b\u1ecb chuy\u00ean nghi\u1ec7p.<\/p><h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n th\u00e9p cacbon b\u1ecb r\u1ec9 s\u00e9t?<\/h2><h3 class=\"wp-block-heading\">B\u1ea3o v\u1ec7 l\u1edbp ph\u1ee7<\/h3><p>Ph\u1ee7 m\u1ed9t l\u1edbp s\u01a1n ch\u1ed1ng g\u1ec9 ho\u1eb7c l\u1edbp b\u1ea3o v\u1ec7 nh\u01b0 s\u01a1n, m\u1ea1 k\u1ebdm, v.v. l\u00ean b\u1ec1 m\u1eb7t th\u00e9p cacbon c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 oxy v\u00e0 \u0111\u1ed9 \u1ea9m ti\u1ebfp x\u00fac v\u1edbi b\u1ec1 m\u1eb7t kim lo\u1ea1i, do \u0111\u00f3 l\u00e0m gi\u1ea3m s\u1ef1 \u0103n m\u00f2n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 hi\u1ec7u qu\u1ea3 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 ngo\u00e0i tr\u1eddi v\u00e0 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. C\u00e1c l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng, m\u1ea1 \u0111i\u1ec7n v\u00e0 s\u01a1n phun.<\/p><h3 class=\"wp-block-heading\">S\u1eed d\u1ee5ng ch\u1ea5t \u1ee9c ch\u1ebf r\u1ec9 s\u00e9t<\/h3><p>B\u00f4i ch\u1ea5t ch\u1ed1ng g\u1ec9 ho\u1eb7c d\u1ea7u ch\u1ed1ng g\u1ec9 l\u00ean b\u1ec1 m\u1eb7t th\u00e9p cacbon c\u00f3 th\u1ec3 t\u1ea1o th\u00e0nh l\u1edbp m\u00e0ng b\u1ea3o v\u1ec7 v\u00e0 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh \u0103n m\u00f2n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 t\u1ea1m th\u1eddi. Ch\u1ea5t ch\u1ed1ng g\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh lo\u1ea1i b\u00f4i tr\u01a1n, lo\u1ea1i b\u1ea3o v\u1ec7 v\u00e0 lo\u1ea1i \u1ee9c ch\u1ebf. B\u1ea1n n\u00ean ch\u1ecdn ch\u1ea5t ch\u1ed1ng g\u1ec9 ph\u00f9 h\u1ee3p.<\/p><h3 class=\"wp-block-heading\">B\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean<\/h3><p>Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra v\u00e0 v\u1ec7 sinh c\u00e1c b\u1ed9 ph\u1eadn th\u00e9p cacbon, k\u1ecbp th\u1eddi lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t v\u00e0 c\u00e1c ch\u1ea5t \u0103n m\u00f2n, gi\u1eef cho b\u1ec1 m\u1eb7t kim lo\u1ea1i kh\u00f4 r\u00e1o v\u00e0 s\u1ea1ch s\u1ebd. Bao g\u1ed3m lo\u1ea1i b\u1ecf n\u01b0\u1edbc v\u00e0 c\u1eb7n t\u00edch t\u1ee5, ki\u1ec3m tra l\u1edbp b\u1ea3o v\u1ec7 b\u1ecb h\u1ecfng. B\u1ea3o d\u01b0\u1ee1ng th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 k\u00e9o d\u00e0i hi\u1ec7u qu\u1ea3 tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn th\u00e9p cacbon.<\/p><h3 class=\"wp-block-heading\">Tr\u00e1nh ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t \u0103n m\u00f2n<\/h3><p>Khi thi\u1ebft k\u1ebf v\u00e0 s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p cacbon, h\u00e3y c\u1ed1 g\u1eafng tr\u00e1nh \u0111\u1ec3 ch\u00fang ti\u1ebfp x\u00fac v\u1edbi c\u00e1c h\u00f3a ch\u1ea5t \u0103n m\u00f2n nh\u01b0 axit v\u00e0 ki\u1ec1m. V\u00ed d\u1ee5, trong c\u00e1c nh\u00e0 m\u00e1y x\u1eed l\u00fd h\u00f3a ch\u1ea5t ho\u1eb7c m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc m\u1eb7n, c\u1ea7n \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 th\u00edch h\u1ee3p, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ch\u1ed1ng \u0103n m\u00f2n v\u00e0 l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb b\u1ecbt k\u00edn.<\/p><h3 class=\"wp-block-heading\">S\u1eed d\u1ee5ng h\u1ee3p kim ph\u00f9 h\u1ee3p<\/h3><p>Khi c\u1ea7n thi\u1ebft, c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn h\u1ee3p kim ch\u1ee9a c\u00e1c nguy\u00ean t\u1ed1 ch\u1ed1ng \u0103n m\u00f2n (nh\u01b0 niken, crom, v.v.) \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u. V\u00ed d\u1ee5, s\u1eed d\u1ee5ng th\u00e9p m\u1ea1 k\u1ebdm c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n. Ph\u01b0\u01a1ng ph\u00e1p h\u1ee3p kim c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p cacbon.<\/p><h3 class=\"wp-block-heading\">Ng\u0103n ng\u1eeba \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a<\/h3><p><strong>Ph\u00e2n l\u1eadp c\u00e1c kim lo\u1ea1i kh\u00e1c nhau:<\/strong> Th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc \u0111\u1ec3 c\u00f4 l\u1eadp kim lo\u1ea1i \u1edf c\u00e1c \u0111i\u1ec7n th\u1ebf kh\u00e1c nhau \u0111\u1ec3 ch\u00fang kh\u00f4ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp. N\u1ebfu kh\u00f4ng th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n \u0111\u1ec3 t\u00e1ch ch\u00fang ra \u0111\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a. Gio\u0103ng v\u00e0 l\u1edbp ph\u1ee7 c\u00e1ch \u0111i\u1ec7n c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a hi\u1ec7u qu\u1ea3.<\/p><p><strong>Ch\u1ecdn s\u1ef1 k\u1ebft h\u1ee3p kim lo\u1ea1i ph\u00f9 h\u1ee3p: <\/strong>S\u1eed d\u1ee5ng c\u00f9ng v\u1eadt li\u1ec7u kim lo\u1ea1i cho c\u00e1c b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a.<\/p><p><strong>Ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean:<\/strong> Ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean c\u00e1c khu v\u1ef1c c\u00f3 th\u1ec3 x\u1ea3y ra \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng x\u1ea3y ra hi\u1ec7u \u1ee9ng pin v\u00e0 th\u1ef1c hi\u1ec7n b\u1ea3o tr\u00ec v\u00e0 s\u1eeda ch\u1eefa c\u1ea7n thi\u1ebft. S\u1eed d\u1ee5ng m\u00e1y ki\u1ec3m tra ch\u00eanh l\u1ec7ch \u0111i\u1ec7n th\u1ebf c\u00f3 th\u1ec3 gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c v\u1ea5n \u0111\u1ec1 \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a ti\u1ec1m \u1ea9n.<\/p><h2 class=\"wp-block-heading\">Kim lo\u1ea1i ho\u1eb7c h\u1ee3p kim n\u00e0o kh\u00f4ng d\u1ec5 b\u1ecb g\u1ec9?<\/h2><p><strong>Th\u00e9p kh\u00f4ng g\u1ec9: <\/strong>Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 t\u1ea1o th\u00e0nh l\u1edbp m\u00e0ng b\u1ea3o v\u1ec7 tr\u00ean b\u1ec1 m\u1eb7t do h\u00e0m l\u01b0\u1ee3ng crom cao, do \u0111\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n hi\u1ec7u qu\u1ea3. Trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao.<\/p><p><strong>Nh\u00f4m v\u00e0 h\u1ee3p kim c\u1ee7a nh\u00f4m:<\/strong> L\u1edbp m\u00e0ng b\u1ea3o v\u1ec7 oxit nh\u00f4m t\u1ef1 nhi\u00ean s\u1ebd h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t nh\u00f4m, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t. Th\u00edch h\u1ee3p cho h\u00e0ng kh\u00f4ng, \u00f4 t\u00f4 v\u00e0 x\u00e2y d\u1ef1ng.<\/p><p><strong>Th\u00e9p m\u1ea1 k\u1ebdm: <\/strong>L\u1edbp b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1eb1ng c\u00e1ch ph\u1ee7 k\u1ebdm l\u00ean b\u1ec1 m\u1eb7t th\u00e9p cacbon \u0111\u1ec3 ng\u0103n ch\u1eb7n oxy v\u00e0 \u0111\u1ed9 \u1ea9m ti\u1ebfp x\u00fac v\u1edbi th\u00e9p m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong x\u00e2y d\u1ef1ng v\u00e0 s\u1ea3n xu\u1ea5t.<\/p><p><strong>Titan v\u00e0 h\u1ee3p kim c\u1ee7a n\u00f3:<\/strong> Kim lo\u1ea1i titan c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi trong h\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng v\u00e0 kh\u00f4ng d\u1ec5 b\u1ecb r\u1ec9 s\u00e9t. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 y t\u1ebf.<\/p><p><strong>\u0110\u1ed3ng v\u00e0 h\u1ee3p kim c\u1ee7a \u0111\u1ed3ng:<\/strong> \u0110\u1ed3ng t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp g\u1ec9 xanh (patina) trong kh\u00ed quy\u1ec3n, ng\u0103n ng\u1eeba s\u1ef1 \u0103n m\u00f2n th\u00eam. \u0110\u1ed3ng v\u00e0 c\u00e1c h\u1ee3p kim c\u1ee7a n\u00f3 nh\u01b0 \u0111\u1ed3ng thau v\u00e0 \u0111\u1ed3ng c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong x\u00e2y d\u1ef1ng v\u00e0 trang tr\u00ed.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p Cacbon so v\u1edbi Th\u00e9p Kh\u00f4ng G\u1ec9<\/h2><p>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p cacbon v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0:<\/p><p><strong>Th\u00e0nh ph\u1ea7n v\u00e0 h\u00e0m l\u01b0\u1ee3ng h\u1ee3p kim:<\/strong> Th\u00e9p cacbon ch\u1ee7 y\u1ebfu bao g\u1ed3m cacbon v\u00e0 s\u1eaft, v\u00e0 kh\u00f4ng ch\u1ee9a ho\u1eb7c ch\u1ec9 ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim. Ngo\u00e0i s\u1eaft v\u00e0 cacbon, <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/guide\/\">th\u00e9p kh\u00f4ng g\u1ec9<\/a> c\u0169ng ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng cao c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim nh\u01b0 crom (Cr) v\u00e0 niken (Ni), th\u01b0\u1eddng c\u00f3 h\u00e0m l\u01b0\u1ee3ng crom l\u1edbn h\u01a1n 12%.<\/p><p><strong>T\u00ednh ch\u1ea5t v\u1eadt l\u00fd:<\/strong><\/p><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ee9a nhi\u1ec1u nguy\u00ean t\u1ed1 h\u1ee3p kim h\u01a1n, v\u00ec v\u1eady b\u1ec1 ngo\u00e0i c\u1ee7a n\u00f3 ch\u1ee7 y\u1ebfu l\u00e0 m\u00e0u b\u1ea1c v\u00e0 nh\u1eb5n. Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p cacbon ch\u1ee7 y\u1ebfu l\u00e0 m\u00e0u c\u1ee7a s\u1eaft, t\u01b0\u01a1ng \u0111\u1ed1i s\u1eabm v\u00e0 b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng nh\u1eb5n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9.<\/li><\/ul><ul class=\"wp-block-list\"><li>Th\u00e9p cacbon th\u01b0\u1eddng c\u00f3 m\u1eadt \u0111\u1ed9 cao h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9.<\/li><\/ul><ul class=\"wp-block-list\"><li>Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n, trong khi th\u00e9p cacbon th\u00ec k\u00e9m h\u01a1n.<\/li><\/ul><p><strong>T\u1eeb t\u00ednh: <\/strong>Th\u00e9p cacbon c\u00f3 t\u1eeb t\u00ednh v\u00e0 c\u00f3 th\u1ec3 b\u1ecb nam ch\u00e2m h\u00fat, trong khi t\u1eeb t\u00ednh c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 thay \u0111\u1ed5i t\u00f9y theo lo\u1ea1i. Th\u00e9p kh\u00f4ng g\u1ec9 Ferrite (F) v\u00e0 martensite (M) c\u00f3 t\u1eeb t\u00ednh, trong khi th\u00e9p kh\u00f4ng g\u1ec9 austenite (A) kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh.<\/p><p><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n:<\/strong> So v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9, th\u00e9p cacbon c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n y\u1ebfu h\u01a1n. Trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u oxy v\u00e0 \u0111\u1ed9 \u1ea9m, th\u00e9p cacbon r\u1ea5t d\u1ec5 b\u1ecb g\u1ec9, do \u0111\u00f3 th\u01b0\u1eddng c\u1ea7n c\u00e1c bi\u1ec7n ph\u00e1p ch\u1ed1ng \u0103n m\u00f2n b\u1ed5 sung \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3. Th\u00e9p kh\u00f4ng g\u1ec9 gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u b\u1ea5t ch\u1ea5p m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p><p><strong>C\u00e1c t\u00ednh ch\u1ea5t kh\u00e1c: <\/strong>Th\u00e9p cacbon c\u00f3 \u0111\u1ed9 b\u1ec1n cao, kh\u1ea3 n\u0103ng gia c\u00f4ng v\u00e0 h\u00e0n t\u1ed1t, chi ph\u00ed s\u1ea3n xu\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, nh\u01b0ng l\u1ea1i thi\u1ebfu kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. Ng\u01b0\u1ee3c l\u1ea1i, ngo\u00e0i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f2n c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, v\u1ebb ngo\u00e0i \u0111\u1eb9p, d\u1ec5 gia c\u00f4ng, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p cacbon c\u00f3 b\u1ecb g\u1ec9 nhanh h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng?<\/h3><p>\u0110\u00fang, <strong>th\u00e9p cacbon<\/strong> r\u1ec9 s\u00e9t nhanh h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi <strong>th\u00e9p kh\u00f4ng g\u1ec9<\/strong>. Nguy\u00ean nh\u00e2n l\u00e0 do th\u00e9p cacbon thi\u1ebfu l\u1edbp oxit crom b\u1ea3o v\u1ec7 h\u00ecnh th\u00e0nh tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9, c\u00f3 t\u00e1c d\u1ee5ng ng\u0103n ng\u1eeba r\u1ec9 s\u00e9t v\u00e0 \u0103n m\u00f2n.<\/p><ul class=\"wp-block-list\"><li><strong>Th\u00e9p Cacbon<\/strong>: Ch\u1ee7 y\u1ebfu ch\u1ee9a s\u1eaft v\u00e0 cacbon, khi\u1ebfn n\u00f3 d\u1ec5 b\u1ecb r\u1ec9 s\u00e9t khi ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m v\u00e0 oxy. N\u1ebfu kh\u00f4ng c\u00f3 l\u1edbp ph\u1ee7 ho\u1eb7c x\u1eed l\u00fd b\u1ea3o v\u1ec7, n\u00f3 s\u1ebd nhanh ch\u00f3ng b\u1ecb r\u1ec9 s\u00e9t.<\/li>\n\n<li><strong>Th\u00e9p kh\u00f4ng g\u1ec9<\/strong>: Ch\u1ee9a \u00edt nh\u1ea5t <strong>10.5% crom<\/strong>, ph\u1ea3n \u1ee9ng v\u1edbi oxy \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp m\u1ecfng, v\u00f4 h\u00ecnh <strong>crom oxit<\/strong>L\u1edbp n\u00e0y b\u1ea3o v\u1ec7 th\u00e9p kh\u1ecfi b\u1ecb g\u1ec9 v\u00e0 c\u00f3 th\u1ec3 t\u1ef1 ph\u1ee5c h\u1ed3i n\u1ebfu b\u1ecb h\u01b0 h\u1ecfng.<\/li><\/ul><p>Do \u0111\u00f3, th\u00e9p cacbon c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng nhi\u1ec1u h\u01a1n (l\u1edbp ph\u1ee7, s\u1ea5y kh\u00f4, tra d\u1ea7u) \u0111\u1ec3 ch\u1ed1ng g\u1ec9, trong khi th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 t\u1ed1t h\u01a1n nhi\u1ec1u, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt ho\u1eb7c ti\u1ebfp x\u00fac v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 b\u00ean ngo\u00e0i.<\/p><p>\u0110\u1ecdc th\u00eam li\u00ean quan: <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1ch n\u00e0o?<\/a><\/p><h2 class=\"wp-block-heading\">Nh\u1eadn \u0111\u01b0\u1ee3c th\u00e9p nh\u01b0 \u00fd!<\/h2><p>L\u00e0 m\u1ed9t nh\u00e0 cung c\u1ea5p th\u00e9p gi\u00e0u kinh nghi\u1ec7m, ch\u00fang t\u00f4i s\u1ebd t\u1eadn t\u00ecnh cung c\u1ea5p cho b\u1ea1n c\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n. N\u1ebfu b\u1ea1n g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c l\u1ef1a ch\u1ecdn <a href=\"https:\/\/steelprogroup.com\/vi\/steel-by-type\/\">th\u00e9p<\/a> ho\u1eb7c c\u1ea7n t\u01b0 v\u1ea5n chuy\u00ean nghi\u1ec7p, xin vui l\u00f2ng <a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\">li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00d3. M\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m l\u1edbn c\u1ee7a th\u00e9p cacbon l\u00e0 d\u1ec5 b\u1ecb r\u1ec9 s\u00e9t. \u0110\u1ecdc b\u00e0i vi\u1ebft c\u1ee7a ch\u00fang t\u00f4i s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u l\u00fd do t\u1ea1i sao [\u2026]<\/p>","protected":false},"author":1,"featured_media":10694,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[110],"tags":[],"class_list":["post-10706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=10706"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10706\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/10694"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=10706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=10706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=10706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}