{"id":19871,"date":"2024-12-15T11:16:00","date_gmt":"2024-12-15T03:16:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=19871"},"modified":"2025-01-14T14:44:35","modified_gmt":"2025-01-14T06:44:35","slug":"d3","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/d3\/","title":{"rendered":"Th\u00e9p c\u00f4ng c\u1ee5 D3 | Th\u00e9p l\u00e0m vi\u1ec7c ngu\u1ed9i: T\u00ednh ch\u1ea5t, C\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, \u1ee8ng d\u1ee5ng, H\u00ecnh d\u1ea1ng"},"content":{"rendered":"<p>Th\u00e9p D3 l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u trong nh\u00f3m th\u00e9p c\u00f4ng c\u1ee5 gia c\u00f4ng ngu\u1ed9i, \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn v\u00ec \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng duy tr\u00ec c\u1ea1nh s\u1eafc v\u01b0\u1ee3t tr\u1ed9i. V\u1edbi h\u00e0m l\u01b0\u1ee3ng carbon 2.0-2.4% v\u00e0 h\u00e0m l\u01b0\u1ee3ng crom 12.0-13.0%, th\u00e9p n\u00e0y l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 khu\u00f4n v\u00e0 \u0111\u1ed9t d\u1eadp, d\u1ec5 d\u00e0ng x\u1eed l\u00fd \u1ee9ng su\u1ea5t v\u00e0 ma s\u00e1t cao. D3 \u0111\u01b0\u1ee3c t\u00f4i d\u1ea7u \u0111\u1ec3 t\u00f4i c\u1ee9ng, nh\u01b0ng kh\u00f4ng th\u1ec3 tr\u1ea3i qua qu\u00e1 tr\u00ecnh t\u00f4i c\u1ee9ng th\u1ee9 c\u1ea5p. C\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a th\u00e9p n\u00e0y ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng l\u1edbn cacbua gi\u00e0u crom, g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p><p>B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y c\u00e1c t\u00ednh ch\u1ea5t ch\u00ednh, ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd nhi\u1ec7t, c\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, h\u00ecnh d\u1ea1ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p D3, gi\u00fap b\u1ea1n \u0111\u01b0a ra l\u1ef1a ch\u1ecdn s\u00e1ng su\u1ed1t cho c\u00e1c y\u00eau c\u1ea7u kh\u1eaft khe nh\u1ea5t v\u1ec1 c\u00f4ng c\u1ee5 c\u1ee7a m\u00ecnh.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 l\u00e0m vi\u1ec7c ngu\u1ed9i D3<\/h2><p>Th\u00e9p D3 c\u00f3 \u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh tuy\u1ec7t v\u1eddi, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng c\u1ee5 \u0111\u00f2i h\u1ecfi kh\u1eaft khe. Sau \u0111\u00e2y l\u00e0 t\u1ed5ng quan ng\u1eafn g\u1ecdn v\u1ec1 c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a th\u00e9p n\u00e0y \u0111\u1ec3 gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 hi\u1ec7u su\u1ea5t c\u1ee7a th\u00e9p trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.<\/p><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p D3<\/h3><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p D3:<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>N\u1ed9i dung (%)<\/strong><\/td><\/tr><tr><td>Cacbon, C<\/td><td>2.0 &#8211; 2.4<\/td><\/tr><tr><td>Crom, Cr<\/td><td>12.0 &#8211; 13.0<\/td><\/tr><tr><td>Mangan, Mn<\/td><td>0.30 &#8211; 0.60<\/td><\/tr><tr><td>Silic, Si<\/td><td>0.30 &#8211; 0.50<\/td><\/tr><tr><td>Vanadi, V<\/td><td>0.10 &#8211; 0.30<\/td><\/tr><tr><td>Ph\u1ed1t pho, P<\/td><td>\u2264 0,03<\/td><\/tr><tr><td>L\u01b0u hu\u1ef3nh, S<\/td><td>\u2264 0,03<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p D3<\/h3><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p D3:<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb m\u00e9t<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u1ef7 s\u1ed1 Poisson<\/td><td>0.28<\/td><td>0.28<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>210 GPa<\/td><td>30,5 \u00d7 10\u2076 psi<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>1.550 \u2013 1.750MPa<\/td><td>225 \u2013 254 ksi<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>1.400 \u2013 1.600MPa<\/td><td>203 \u2013 232 ksi<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp<\/td><td>8 \u2013 12 J\/cm\u00b2<\/td><td>0,15 \u2013 0,22 ft-lb\/in\u00b2<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>6 &#8211; 10%<\/td><td>6 &#8211; 10%<\/td><\/tr><\/tbody><\/table><\/figure><p>\u0110\u1ed9 b\u1ec1n k\u00e9o cao c\u1ee7a th\u00e9p D3 (1.550 \u2013 1.750 MPa) khi\u1ebfn n\u00f3 tr\u1edf n\u00ean ho\u00e0n h\u1ea3o cho c\u00e1c c\u00f4ng c\u1ee5 ch\u1ecbu \u0111\u01b0\u1ee3c \u1ee9ng su\u1ea5t v\u00e0 va \u0111\u1eadp l\u1edbn m\u00e0 kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng.<\/p><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p D3<\/h3><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb m\u00e9t<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>7,7g\/cm\u00b3<\/td><td>0,278 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1.200 \u2013 1.250 \u00b0C<\/td><td>2.192 \u2013 2.282 \u00b0F<\/td><\/tr><tr><td>Nhi\u1ec7t dung ri\u00eang<\/td><td>460 J\/kg\u00b7K<\/td><td>0,110 Btu\/lb\u00b7\u00b0F<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>25 W\/m\u00b7K<\/td><td>14,5 BTU\u00b7in\/h\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>11,5 \u00b5m\/m\u00b7K<\/td><td>6,39 \u00d7 10\u207b\u2076 in\/in\u00b7\u00b0F<\/td><\/tr><\/tbody><\/table><\/figure><p>V\u1edbi \u0111i\u1ec3m n\u00f3ng ch\u1ea3y t\u1eeb 1.200 \u2013 1.250\u00b0C, th\u00e9p D3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean ho\u00e0n h\u1ea3o cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng c\u1ee5 \u0111\u00f2i h\u1ecfi kh\u1eaft khe. N\u1ebfu \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t l\u00e0 \u01b0u ti\u00ean c\u1ee7a b\u1ea1n, th\u00e9p D2 ho\u1eb7c A2 c\u00f3 th\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t t\u1ed1t h\u01a1n khi ti\u1ebfp x\u00fac l\u00e2u v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao.<\/p><h4 class=\"wp-block-heading\">\u0110\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p D3 l\u00e0 bao nhi\u00eau?<\/h4><p>Th\u00e9p D3 th\u01b0\u1eddng \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng 58-62 HRC sau khi x\u1eed l\u00fd nhi\u1ec7t \u0111\u00fang c\u00e1ch, mang l\u1ea1i kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 s\u1eafc b\u00e9n v\u01b0\u1ee3t tr\u1ed9i.<\/p><h4 class=\"wp-block-heading\">D3 Super Strength l\u00e0 g\u00ec?<\/h4><p>\u0110\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a th\u00e9p D3 \u0111\u1ebfn t\u1eeb h\u00e0m l\u01b0\u1ee3ng carbon v\u00e0 crom cao, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc cao trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng c\u1ee5 \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p><h2 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t th\u00e9p l\u00e0m vi\u1ec7c ngu\u1ed9i D3<\/h2><p>\u0110\u1ed1i v\u1edbi th\u00e9p D3, x\u1eed l\u00fd nhi\u1ec7t l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n ph\u00f9 h\u1ee3p. Th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1c b\u01b0\u1edbc \u1ee7, ram v\u00e0 l\u00e0m c\u1ee9ng gi\u00fap tr\u00e1nh n\u1ee9t v\u00e0 bi\u1ebfn d\u1ea1ng \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o th\u00e9p ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u1ee9ng su\u1ea5t cao, ma s\u00e1t cao.<\/p><h3 class=\"wp-block-heading\">\u1ee6<\/h3><p>\u1ee6 th\u00e9p D3 gi\u00fap gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong, gi\u00fap gia c\u00f4ng v\u00e0 x\u1eed l\u00fd d\u1ec5 d\u00e0ng h\u01a1n. \u0110\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y, h\u00e3y nung th\u00e9p \u0111\u1ebfn 871\u00b0C (1.600\u00b0F) trong l\u00f2 nung c\u00f3 ki\u1ec3m so\u00e1t kh\u00ed quy\u1ec3n v\u00e0 gi\u1eef \u1edf nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3 trong 1 \u0111\u1ebfn 2 gi\u1edd. Sau khi ho\u00e0n t\u1ea5t, h\u00e3y l\u00e0m ngu\u1ed9i d\u1ea7n v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng nhanh h\u01a1n -6\u00b0C (20\u00b0F) m\u1ed7i gi\u1edd cho \u0111\u1ebfn khi l\u00f2 nung chuy\u1ec3n sang m\u00e0u \u0111en, sau \u0111\u00f3 \u0111\u1ec3 v\u1eadt li\u1ec7u ngu\u1ed9i trong kh\u00f4ng kh\u00ed.<\/p><p><strong>M\u1eb9o:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>S\u1eed d\u1ee5ng l\u00f2 nung c\u00f3 ki\u1ec3m so\u00e1t<\/strong> \u0111\u1ec3 tr\u00e1nh qu\u00e1 tr\u00ecnh oxy h\u00f3a c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u00ednh ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n\n<li><strong>L\u00e0m m\u00e1t ch\u1eadm l\u00e0 r\u1ea5t quan tr\u1ecdng<\/strong>\u2014kh\u00f4ng n\u00ean v\u1ed9i v\u00e0ng th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh \u0111\u1ec3 tr\u00e1nh bi\u1ebfn d\u1ea1ng. Tr\u00e1nh l\u00e0m ngu\u1ed9i qu\u00e1 nhanh v\u00ec c\u00f3 th\u1ec3 g\u00e2y ra \u1ee9ng su\u1ea5t b\u00ean trong ho\u1eb7c n\u1ee9t.<\/li>\n\n<li><strong>Ki\u1ec3m tra sau khi \u1ee7<\/strong>: Sau khi l\u00e0m ngu\u1ed9i, h\u00e3y ki\u1ec3m tra tr\u1ef1c quan v\u1eadt li\u1ec7u \u0111\u1ec3 xem c\u00f3 b\u1ea5t k\u1ef3 d\u1ea5u hi\u1ec7u n\u1ee9t ho\u1eb7c khuy\u1ebft t\u1eadt n\u00e0o kh\u00f4ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u1ebfu l\u00e0m ngu\u1ed9i nhanh. B\u1ea5t k\u1ef3 v\u1ea5n \u0111\u1ec1 n\u00e0o \u1edf \u0111\u00e2y c\u00f3 th\u1ec3 y\u00eau c\u1ea7u l\u00e0m l\u1ea1i quy tr\u00ecnh ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 l\u00e0m ngu\u1ed9i.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u00e0m ngu\u1ed9i<\/h3><p>Sau khi th\u00e9p D3 ngu\u1ed9i \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng sau khi t\u00f4i, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 t\u00f4i luy\u1ec7n. Qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0m gi\u1ea3m \u0111\u1ed9 gi\u00f2n v\u00e0 tinh ch\u1ec9nh \u0111\u1ed9 c\u1ee9ng \u0111\u1ec3 c\u00f3 s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t nh\u1ea5t gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 dai. L\u00e0m n\u00f3ng th\u00e9p trong l\u00f2 t\u00f4i luy\u1ec7n v\u00e0 t\u0103ng nhi\u1ec7t \u0111\u1ed9 t\u1eeb t\u1eeb \u0111\u1ebfn ph\u1ea1m vi mong mu\u1ed1n (th\u01b0\u1eddng l\u00e0 200-300\u00b0C ho\u1eb7c 390-570\u00b0F). \u0110\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t, t\u00f4i luy\u1ec7n trong kho\u1ea3ng 1 gi\u1edd cho m\u1ed7i inch \u0111\u1ed9 d\u00e0y.<\/p><p><strong>M\u1eb9o:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>Nhi\u1ec1u chu k\u1ef3 t\u00f4i luy\u1ec7n<\/strong> c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai t\u1ed1i \u01b0u, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn d\u00e0y ho\u1eb7c l\u1edbn.<\/li>\n\n<li><strong>L\u00e0m n\u00f3ng ch\u1eadm gi\u00fap tr\u00e1nh c\u0103ng th\u1eb3ng nhi\u1ec7t <\/strong>v\u00e0 \u0111\u1ea3m b\u1ea3o th\u00e9p \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ed3ng \u0111\u1ec1u.<\/li>\n\n<li><strong>Cho ph\u00e9p l\u00e0m m\u00e1t kh\u00f4ng kh\u00ed<\/strong> sau khi t\u00f4i luy\u1ec7n \u0111\u1ec3 tr\u00e1nh n\u1ee9t ho\u1eb7c \u0111\u1ed9 c\u1ee9ng kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u. L\u00e0m m\u00e1t trong d\u1ea7u ho\u1eb7c n\u01b0\u1edbc c\u00f3 th\u1ec3 g\u00e2y ra \u1ee9ng su\u1ea5t nhi\u1ec7t.<\/li>\n\n<li><strong>Ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng sau khi t\u00f4i luy\u1ec7n<\/strong>:S\u1eed d\u1ee5ng m\u00e1y ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o th\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng mong mu\u1ed1n sau khi t\u00f4i luy\u1ec7n.<\/li><\/ul><h3 class=\"wp-block-heading\">L\u00e0m c\u1ee9ng<\/h3><p>T\u00f4i luy\u1ec7n th\u00e9p D3 l\u00e0 c\u00e1ch t\u1ea1o n\u00ean \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi c\u1ee7a th\u00e9p. \u0110\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch, h\u00e3y nung th\u00e9p \u0111\u1ebfn 954\u00b0C (1.750\u00b0F) v\u00e0 ng\u00e2m trong 20-25 ph\u00fat, th\u00eam 5 ph\u00fat cho m\u1ed7i inch \u0111\u1ed9 d\u00e0y. Sau khi ng\u00e2m, l\u00e0m ngu\u1ed9i th\u00e9p trong d\u1ea7u \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng c\u1ea7n thi\u1ebft. Th\u00e9p D3 r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi qu\u00e1 nhi\u1ec7t, v\u00ec v\u1eady \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i tr\u00e1nh \u0111i\u1ec1u \u0111\u00f3 \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t.<\/p><p><strong>M\u1eb9o:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>\u0110\u1ea3m b\u1ea3o s\u01b0\u1edfi \u1ea5m \u0111\u1ec1u<\/strong> tr\u00ean to\u00e0n b\u1ed9 ph\u1ea7n th\u00e9p \u0111\u1ec3 tr\u00e1nh cong v\u00eanh ho\u1eb7c c\u1ee9ng kh\u00f4ng \u0111\u1ec1u. L\u00e0m n\u00f3ng m\u1ed9t b\u1ed9 ph\u1eadn qu\u00e1 nhanh ho\u1eb7c kh\u00f4ng \u0111\u1ec1u c\u00f3 th\u1ec3 t\u1ea1o ra \u1ee9ng su\u1ea5t b\u00ean trong.<\/li>\n\n<li><strong>Tr\u00e1nh qu\u00e1 n\u00f3ng<\/strong>\u2014nhi\u1ec7t \u0111\u1ed9 tr\u00ean 1.050\u00b0C (1.922\u00b0F) c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ea1t, l\u00e0m gi\u1ea3m \u0111\u1ed9 c\u1ee9ng.<\/li>\n\n<li><strong>Theo d\u00f5i nhi\u1ec7t \u0111\u1ed9 d\u1ea7u<\/strong> c\u1ea9n th\u1eadn\u2014d\u1ea7u qu\u00e1 l\u1ea1nh c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn n\u1ee9t, trong khi d\u1ea7u qu\u00e1 n\u00f3ng c\u00f3 th\u1ec3 khi\u1ebfn b\u1ec1 m\u1eb7t m\u1ec1m h\u01a1n.<\/li>\n\n<li><strong>Ki\u1ec3m tra sau khi d\u1eadp t\u1eaft<\/strong>: Sau khi t\u00f4i, h\u00e3y ki\u1ec3m tra xem c\u00f3 bi\u1ebfn d\u1ea1ng kh\u00f4ng. N\u1ebfu b\u1ea1n th\u1ea5y b\u1ea5t k\u1ef3 bi\u1ebfn d\u1ea1ng n\u00e0o, h\u00e3y \u0111\u1ea3m b\u1ea3o th\u00e9p \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ec1u v\u00e0 d\u1ea7u t\u00f4i \u1edf \u0111\u00fang nhi\u1ec7t \u0111\u1ed9.<\/li><\/ul><p>B\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c b\u01b0\u1edbc chi ti\u1ebft n\u00e0y v\u00e0 c\u00e2n nh\u1eafc nh\u1eefng m\u1eb9o b\u1ed5 sung, b\u1ea1n s\u1ebd t\u1eadn d\u1ee5ng t\u1ed1i \u0111a th\u00e9p D3, \u0111\u1ea3m b\u1ea3o th\u00e9p ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng ngu\u1ed9i \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p D3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/h2><p>B\u1ea3ng sau \u0111\u00e2y li\u1ec7t k\u00ea c\u00e1c c\u1ea5p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n \u0111\u00fang c\u1ee7a th\u00e9p D3 theo c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf kh\u00e1c nhau. \u0110\u00e2y l\u00e0 c\u00e1c c\u1ea5p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n \u0111\u00fang v\u00e0 c\u00f3 th\u1ec3 c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t nh\u1ecf v\u1ec1 t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u.&nbsp;<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Ti\u00eau chu\u1ea9n<\/strong><\/td><td><strong>AISI\/SAE<\/strong><\/td><td><strong>DIN (\u0110\u1ee9c)<\/strong><\/td><td><strong>JIS (Nh\u1eadt B\u1ea3n)<\/strong><\/td><td><strong>BS (Anh)<\/strong><\/td><td><strong>AFNOR (Ph\u00e1p)<\/strong><\/td><td><strong>Ti\u00eau chu\u1ea9n ISO<\/strong><\/td><\/tr><tr><td>C\u1ea5p<\/td><td>Ng\u00e0y 3<\/td><td>1.208<\/td><td>SKD1<\/td><td>X153CrMoV12<\/td><td>Z120CD12<\/td><td>1.208<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 h\u00ecnh d\u1ea1ng \u00e1p d\u1ee5ng ch\u00fang t\u00f4i cung c\u1ea5p<\/h2><p>Ch\u00fang t\u00f4i cung c\u1ea5p th\u00e9p D3 theo ti\u00eau chu\u1ea9n <strong>Ti\u00eau chu\u1ea9n ASTMA681<\/strong> v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn kh\u00e1c, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ed3ng nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng ngu\u1ed9i. Th\u00e9p D3, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi h\u00e0m l\u01b0\u1ee3ng cacbon v\u00e0 crom cao, l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c c\u00f4ng c\u1ee5 ch\u00ednh x\u00e1c \u0111\u00f2i h\u1ecfi \u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc \u0111\u1eb7c bi\u1ec7t.<\/p><p>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt:<\/p><ul class=\"wp-block-list\"><li><strong>AISI\/SAE<\/strong>: Ng\u00e0y 3<\/li>\n\n<li><strong>Ti\u00eau chu\u1ea9n ASTM<\/strong>: ASTM A681<\/li><\/ul><p>H\u00ecnh d\u1ea1ng ch\u00fang t\u00f4i cung c\u1ea5p:<\/p><p>Ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc kh\u00e1c nhau \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u ri\u00eang bi\u1ec7t c\u1ee7a kh\u00e1ch h\u00e0ng, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p><ol class=\"wp-block-list\"><li><strong>T\u1ea5m th\u00e9p D3<\/strong> \u2013 Th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1eaft khu\u00f4n, d\u1eadp v\u00e0 t\u1ea1o h\u00ecnh.<\/li>\n\n<li><strong>T\u1ea5m th\u00e9p D3<\/strong> \u2013 Th\u00edch h\u1ee3p cho s\u1ea3n xu\u1ea5t khu\u00f4n m\u1eabu v\u00e0 d\u1ee5ng c\u1ee5 l\u1edbn h\u01a1n, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 ch\u1eafc ch\u1eafn.<\/li>\n\n<li><strong>Thanh th\u00e9p D3<\/strong> \u2013 C\u00f3 nhi\u1ec1u \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u d\u00e0i kh\u00e1c nhau \u0111\u1ec3 gia c\u00f4ng th\u00e0nh c\u00e1c b\u1ed9 ph\u1eadn t\u00f9y ch\u1ec9nh.<\/li>\n\n<li><strong>Ph\u00f4i th\u00e9p D3<\/strong> \u2013 S\u1ea3n ph\u1ea9m b\u00e1n th\u00e0nh ph\u1ea9m l\u00fd t\u01b0\u1edfng \u0111\u1ec3 gia c\u00f4ng th\u00e0nh d\u1ee5ng c\u1ee5.<\/li>\n\n<li><strong>R\u00e8n th\u00e9p D3<\/strong> \u2013 H\u00ecnh d\u1ea1ng r\u00e8n t\u00f9y ch\u1ec9nh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c c\u00f4ng c\u1ee5 ph\u1ee9c t\u1ea1p ho\u1eb7c l\u1edbn \u0111\u00f2i h\u1ecfi th\u00eam s\u1ee9c m\u1ea1nh.<\/li>\n\n<li><strong>Thanh th\u00e9p D3 ho\u00e0n thi\u1ec7n ngu\u1ed9i<\/strong> \u2013 Thanh \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u00ednh x\u00e1c \u0111\u1ec3 c\u00f3 dung sai nghi\u00eam ng\u1eb7t v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc tuy\u1ec7t v\u1eddi.<\/li><\/ol><p>M\u1ed7i h\u00ecnh d\u1ea1ng n\u00e0y \u0111\u1ec1u \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n kh\u1eaft khe c\u1ea7n thi\u1ebft cho c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng ngu\u1ed9i, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi kh\u1eaft khe nh\u01b0 \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 m\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng.<\/p><h4 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p D2 v\u00e0 D3 l\u00e0 g\u00ec?<\/h4><p><a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/cr12mov\/\">Th\u00e9p D2<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao h\u01a1n v\u00e0 ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu m\u00e0i m\u00f2n cao, trong khi D3 c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t t\u1ed1t h\u01a1n.<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 l\u00e0m vi\u1ec7c ngu\u1ed9i D3<\/h2><p>Th\u00e9p d\u1ee5ng c\u1ee5 gia c\u00f4ng ngu\u1ed9i D3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc tuy\u1ec7t v\u1eddi, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh s\u1ef1 l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho nhi\u1ec1u \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p><h3 class=\"wp-block-heading\">1. D\u1ee5ng c\u1ee5 \u0111\u00fac khu\u00f4n v\u00e0 d\u1eadp khu\u00f4n<\/h3><p>Khu\u00f4n ph\u00f4i, Khu\u00f4n d\u1eadp, Khu\u00f4n c\u1eaft, Khu\u00f4n \u0111\u1ed9t, Khu\u00f4n \u0111\u1ecbnh h\u00ecnh<\/p><h3 class=\"wp-block-heading\">2. D\u1ee5ng c\u1ee5 t\u1ea1o h\u00ecnh ngu\u1ed9i<\/h3><p>\u0110\u1ee5c, Khu\u00f4n d\u1eadp ngu\u1ed9i, C\u1eaft ph\u00f4i, \u0110\u1ee5c l\u1ed7, Khu\u00f4n \u0111\u00f9n, Cu\u1ed9n \u0111\u1ecbnh h\u00ecnh<\/p><h3 class=\"wp-block-heading\">3. D\u1ee5ng c\u1ee5 c\u1eaft v\u00e0 c\u1eaft<\/h3><p>L\u01b0\u1ee1i c\u1eaft, dao c\u1eaft, khu\u00f4n c\u1eaft, khu\u00f4n c\u1eaft r\u1eddi, dao c\u1eaft<\/p><h3 class=\"wp-block-heading\">4. Khu\u00f4n v\u00e0 Khu\u00f4n Nh\u1ef1a<\/h3><p>Khu\u00f4n \u00e9p phun, Khu\u00f4n n\u00e9n, Khu\u00f4n \u0111\u00fac nh\u1ef1a, V\u00f2i phun v\u00e0 \u0110\u1ea7u v\u00edt<\/p><h3 class=\"wp-block-heading\">5. C\u00f4ng c\u1ee5 ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 \u00f4 t\u00f4<\/h3><p>D\u1ee5ng c\u1ee5 \u00f4 t\u00f4, Khu\u00f4n h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, Khu\u00f4n d\u1eadp, D\u1ee5ng c\u1ee5 \u00e9p \u0111\u1ed9t<\/p><h3 class=\"wp-block-heading\">6. C\u00e1c \u1ee9ng d\u1ee5ng chuy\u00ean bi\u1ec7t kh\u00e1c<\/h3><p>Dao v\u00e0 l\u01b0\u1ee1i dao cho ch\u1ebf bi\u1ebfn g\u1ed7, ch\u00e8n m\u00e0i m\u00f2n cho khai th\u00e1c m\u1ecf, khu\u00f4n n\u00e9n b\u1ed9t, ch\u1ed1t n\u00e9n, l\u01b0\u1ee1i dao m\u00e1y t\u1ea1o vi\u00ean<\/p><h2 class=\"wp-block-heading\">Nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p c\u00f4ng c\u1ee5 l\u00e0m vi\u1ec7c ngu\u1ed9i D3<\/h2><p>Th\u00e9p d\u1ee5ng c\u1ee5 gia c\u00f4ng ngu\u1ed9i D3 l\u00e0 v\u1eadt li\u1ec7u c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon cao, h\u00e0m l\u01b0\u1ee3ng crom cao, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i, ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho khu\u00f4n, m\u0169i \u0111\u1ed9t v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng ngu\u1ed9i kh\u00e1c.<\/p><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i cung c\u1ea5p Th\u00e9p c\u00f4ng c\u1ee5 l\u00e0m vi\u1ec7c ngu\u1ed9i D3 v\u1edbi c\u00e1c quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ed9c \u0111\u00e1o v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t ch\u1ea5t l\u01b0\u1ee3ng cao ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n. Th\u00e9p c\u00f4ng c\u1ee5 D3 c\u1ee7a ch\u00fang t\u00f4i kh\u00f4ng ch\u1ec9 c\u00f3 \u1edf tr\u1ea1ng th\u00e1i \u1ee7 m\u00e0 c\u00f2n \u1edf tr\u1ea1ng th\u00e1i t\u00f4i v\u00e0 ram. N\u1ebfu b\u1ea1n y\u00eau c\u1ea7u c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3, h\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 c\u00f3 c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh \u0111\u00e1p \u1ee9ng nhu c\u1ea7u gia c\u00f4ng kh\u00f3 kh\u0103n nh\u1ea5t c\u1ee7a b\u1ea1n.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>D3 steel is a top choice in the cold work tool steel group, recognized for its outstanding hardness, durability, and [&hellip;]<\/p>","protected":false},"author":1,"featured_media":19862,"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":[4294,4293],"tags":[],"class_list":["post-19871","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grades-tool-steel","category-tool-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/19871","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=19871"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/19871\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/19862"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=19871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=19871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=19871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}