{"id":21796,"date":"2025-04-05T07:28:00","date_gmt":"2025-04-04T23:28:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=21796"},"modified":"2025-04-07T09:56:01","modified_gmt":"2025-04-07T01:56:01","slug":"d6ac-steel-overview","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/alloy-steel\/d6ac-steel-overview\/","title":{"rendered":"Th\u00e9p h\u1ee3p kim D6AC: T\u00ednh ch\u1ea5t, quy tr\u00ecnh, \u1ee9ng d\u1ee5ng"},"content":{"rendered":"

Nh\u00f3m cung c\u1ea5p SteelPro <\/span>Thanh th\u00e9p h\u1ee3p kim D6AC<\/span>, m\u1ed9t v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 b\u1ec1n cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 qu\u1ed1c ph\u00f2ng. B\u00e0i vi\u1ebft n\u00e0y kh\u00e1m ph\u00e1 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh, k\u1ef9 thu\u1eadt s\u1ea3n xu\u1ea5t v\u00e0 c\u00f4ng d\u1ee5ng c\u1ee7a n\u00f3, h\u01b0\u1edbng d\u1eabn b\u1ea1n l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng cho c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea7y th\u00e1ch th\u1ee9c.<\/span><\/p>

Th\u00e9p D6AC l\u00e0 g\u00ec?<\/span><\/h2>

Th\u00e9p D6AC l\u00e0 kim lo\u1ea1i h\u1ee3p kim th\u1ea5p, cacbon trung b\u00ecnh, b\u1ec1n v\u1edbi \u0111\u1ed9 b\u1ec1n \u0111\u1eb7c bi\u1ec7t. N\u00f3 \u0111\u1ea1t t\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o l\u00ean t\u1edbi 280 ksi trong khi v\u1eabn duy tr\u00ec \u0111\u1ed9 d\u1ebbo dai. C\u00e1c \u0111\u1eb7c t\u00ednh l\u00e0m c\u1ee9ng s\u00e2u c\u1ee7a n\u00f3 l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1eb7t c\u1eaft ngang l\u1edbn m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n. N\u1ea5u ch\u1ea3y l\u1ea1i b\u1eb1ng h\u1ed3 quang ch\u00e2n kh\u00f4ng (VAR) \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tinh khi\u1ebft v\u00e0 \u0111\u1ed3ng nh\u1ea5t. H\u1ee3p kim c\u00f3 th\u1ec3 tr\u1ea3i qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t, \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u00ednh x\u00e1c v\u00e0 h\u00e0n, l\u00e0m cho n\u00f3 tr\u1edf n\u00ean ho\u00e0n h\u1ea3o \u0111\u1ec3 s\u1eed d\u1ee5ng trong ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 qu\u1ed1c ph\u00f2ng.<\/span><\/p>

Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u00e9p D6AC<\/span><\/h2>

D6AC \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c ph\u00f2ng v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 nghi\u00eam ng\u1eb7t, bao g\u1ed3m:<\/span><\/p>

  • AMS 6431: X\u00e1c \u0111\u1ecbnh c\u00e1c thanh \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t cho c\u00e1c th\u00e0nh ph\u1ea7n k\u1ebft c\u1ea5u c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/span><\/li>\n\n
  • MIL-S-8949: Ch\u1ec9 \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u v\u1ec1 v\u1eadt li\u1ec7u cho c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y bay v\u00e0 t\u00ean l\u1eeda.<\/span><\/li>\n\n
  • AMS 2300: \u0110\u1ea3m b\u1ea3o \u0111\u1ed9 s\u1ea1ch cho th\u00e9p x\u1eed l\u00fd VAR cao c\u1ea5p.<\/span><\/li>\n\n
  • C\u00e1c ch\u1ee9ng nh\u1eadn kh\u00e1c: ASTM A579 (L\u1edbp 23), FMS-1011 (General Dynamics), GM-1013 (Grumman) v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n c\u1ee5 th\u1ec3 c\u1ee7a Lockheed (STM-05-500, LCM-05-2190).<\/span><\/li><\/ul>

    Kho D6AC c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c theo c\u00e1c ch\u1ee9ng nh\u1eadn n\u00e0y, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u c\u1ee7a OEM c\u00f4ng nghi\u1ec7p, qu\u1ed1c ph\u00f2ng v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 to\u00e0n c\u1ea7u.<\/span><\/p>

    D6AC<\/span> T\u1ed5ng quan v\u1ec1 t\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p h\u1ee3p kim<\/span><\/h2>
    • C\u00e2n b\u1eb1ng s\u1ee9c m\u1ea1nh-kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1eb7c bi\u1ec7t cho m\u1ee5c \u0111\u00edch h\u00e0ng kh\u00f4ng v\u00e0 qu\u00e2n s\u1ef1<\/span>.<\/span><\/li>\n\n
    • \u0110\u1ed9 b\u1ec1n ch\u1ed1ng g\u00e3y v\u00e0 ch\u1ed1ng m\u1ecfi tuy\u1ec7t v\u1eddi.<\/span><\/li>\n\n
    • Kh\u1ea3 n\u0103ng l\u00e0m c\u1ee9ng v\u01b0\u1ee3t tr\u1ed9i cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 ti\u1ebft di\u1ec7n l\u1edbn.<\/span><\/li>\n\n
    • Gi\u1eef nguy\u00ean t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/span><\/li><\/ul>

      Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p D6AC<\/span><\/h2>
      Y\u1ebfu t\u1ed1<\/strong><\/td>N\u1ed9i dung<\/strong><\/td><\/tr>
      Cacbon (C)<\/td>0.46%<\/td><\/tr>
      Silic (Si)<\/td>0.25%<\/td><\/tr>
      Mangan (Mn)<\/td>0.75%<\/td><\/tr>
      Crom (Cr)<\/td>1.10%<\/td><\/tr>
      Niken (Ni)<\/td>0.60%<\/td><\/tr>
      Molip\u0111en (Mo)<\/td>1.00%<\/td><\/tr>
      Vanadi (V)<\/td>0.10%<\/td><\/tr>
      S\u1eaft (Fe)<\/td>Nh\u01b0 s\u1ef1 c\u00e2n b\u1eb1ng<\/td><\/tr><\/tbody><\/table><\/figure>

      D6AC<\/span> T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p<\/span><\/h2>
      T\u00e0i s\u1ea3n<\/strong><\/td>T\u00ecnh tr\u1ea1ng<\/strong><\/td><\/tr>
      600\u00b0F (316\u00b0C)<\/strong><\/td>950\u00b0F (510\u00b0C)<\/strong><\/td><\/tr>
      \u0110\u1ed9 b\u1ec1n k\u00e9o<\/td>280 ksi (1931 MPa)<\/td>228 ksi (1572 MPa)<\/td><\/tr>
      S\u1ee9c ch\u1ecbu l\u1ef1c<\/td>250 ksi (1724 MPa)<\/td>195 ksi (1345 MPa)<\/td><\/tr>
      \u0110\u1ed9 gi\u00e3n d\u00e0i<\/td>7%<\/td>7%<\/td><\/tr>
      Gi\u1ea3m Di\u1ec7n T\u00edch<\/td>23%<\/td>25%<\/td><\/tr>
      \u0110\u1ed9 c\u1ee9ng (HRC)<\/td>53<\/td>46<\/td><\/tr><\/tbody><\/table><\/figure>

      T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p D6AC<\/span><\/h2>
      T\u00e0i s\u1ea3n<\/strong><\/td>Gi\u00e1 tr\u1ecb (Anh)<\/strong><\/td>Gi\u00e1 tr\u1ecb (\u0110\u01a1n v\u1ecb \u0111o l\u01b0\u1eddng)<\/strong><\/td><\/tr>
      T\u1ec9 tr\u1ecdng<\/td>0,284 lb\/cu.in<\/td>7,8g\/cm\u00b3<\/td><\/tr>
      Nhi\u1ec7t dung ri\u00eang<\/td>0,116 Btu\/lb\u00b7\u00b0F<\/td>486 J\/kg\u00b7K<\/td><\/tr>
      \u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td>2600\u00b0F<\/td>1427\u00b0C<\/td><\/tr>
      \u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td>30 Btu\u00b7ft\/(h\u00b7ft\u00b2\u00b7\u00b0F)<\/td>51,9 W\/(m\u00b7K)<\/td><\/tr>
      S\u1ef1 gi\u00e3n n\u1edf nhi\u1ec7t trung b\u00ecnh<\/td>7 \u00b5in\/in\u00b7\u00b0F<\/td>12,6 \u00b5m\/m\u00b7\u00b0C<\/td><\/tr>
      M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i (k\u00e9o)<\/td>32.000 kil\u00f4gam<\/td>220 GPa<\/td><\/tr><\/tbody><\/table><\/figure>

      H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/span><\/h3>
      Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9<\/strong><\/td>Gi\u00e1 tr\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td>Gi\u00e1 tr\u1ecb s\u1ed1 li\u1ec7u<\/strong><\/td><\/tr>
      0 \u2013 100\u00b0F (-18 \u2013 38\u00b0C)<\/td>7,38 \u00b5in\/in\u00b7\u00b0F<\/td>13,28 \u00b5m\/m\u00b7\u00b0C<\/td><\/tr>
      0 \u2013 600\u00b0F (-18 \u2013 316\u00b0C)<\/td>7,61 \u00b5in\/in\u00b7\u00b0F<\/td>13,70 \u00b5m\/m\u00b7\u00b0C<\/td><\/tr>
      100 \u2013 200\u00b0F (38 \u2013 93\u00b0C)<\/td>7,31 \u00b5in\/in\u00b7\u00b0F<\/td>13,16 \u00b5m\/m\u00b7\u00b0C<\/td><\/tr>
      600 \u2013 700\u00b0F (316 \u2013 371\u00b0C)<\/td>9,70 \u00b5in\/in\u00b7\u00b0F<\/td>17,46 \u00b5m\/m\u00b7\u00b0C<\/td><\/tr>
      600 \u2013 1300\u00b0F (316 \u2013 704\u00b0C)<\/td>8,95 \u00b5in\/in\u00b7\u00b0F<\/td>16,11 \u00b5m\/m\u00b7\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>

      K\u00edch th\u01b0\u1edbc thanh th\u00e9p D6AC<\/span><\/h2>

      SteelPro Group cung c\u1ea5p thanh th\u00e9p D6AC \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u00ednh x\u00e1c. T\u1ea5t c\u1ea3 c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u1ec1u \u0111\u00e1p \u1ee9ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt AMS 6431 v\u00e0 MIL-S-8949, c\u00f3 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c v\u00e0 ch\u1ee9ng nh\u1eadn \u0111\u1ea7y \u0111\u1ee7. <\/span><\/p>

      Lo\u1ea1i s\u1ea3n ph\u1ea9m<\/strong><\/td>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc (Anh)<\/strong><\/td>Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc (H\u1ec7 m\u00e9t)<\/strong><\/td><\/tr>
      Thanh tr\u00f2n<\/td>\u0110\u01b0\u1eddng k\u00ednh 0,5\u2033 \u2013 12\u2033<\/td>\u0110\u01b0\u1eddng k\u00ednh 12,7 mm \u2013 304,8 mm<\/td><\/tr>
      Thanh l\u1ee5c gi\u00e1c<\/td>0,5\u2033 \u2013 6\u2033 Ngang ph\u1eb3ng<\/td>12,7 mm \u2013 152,4 mm A\/F<\/td><\/tr>
      Thanh vu\u00f4ng<\/td>Chi\u1ec1u r\u1ed9ng 1\u2033 \u2013 12\u2033<\/td>Chi\u1ec1u r\u1ed9ng 25,4 mm \u2013 304,8 mm<\/td><\/tr>
      Ph\u00f4i (C\u1ed5 phi\u1ebfu r\u00e8n)<\/td>\u0110\u01b0\u1eddng k\u00ednh 6\u2033 \u2013 24\u2033<\/td>\u0110\u01b0\u1eddng k\u00ednh 152,4 mm \u2013 609,6 mm<\/td><\/tr><\/tbody><\/table><\/figure>

      \u1ee8ng d\u1ee5ng th\u00e9p D6AC<\/span><\/h2>

      Th\u00e9p D6AC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh h\u00e0ng kh\u00f4ng, qu\u00e2n s\u1ef1 v\u00e0 s\u1ea3n xu\u1ea5t v\u00ec \u0111\u1ed9 b\u1ec1n \u0111\u1eb7c bi\u1ec7t v\u00e0 s\u1ee9c m\u1ea1nh c\u01a1 h\u1ecdc v\u01b0\u1ee3t tr\u1ed9i.<\/span><\/p>

      • H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/span>: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u00e1nh \u0111\u00e1p, c\u00e1c th\u00e0nh ph\u1ea7n c\u1ea5u tr\u00fac v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn khung m\u00e1y bay ch\u1ecbu \u1ee9ng su\u1ea5t cao.<\/span><\/li>\n\n
      • Ph\u00f2ng th\u1ee7<\/span>:\u0110\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong \u00e1o gi\u00e1p, c\u00e1c th\u00e0nh ph\u1ea7n t\u00ean l\u1eeda v\u00e0 h\u1ec7 th\u1ed1ng v\u0169 kh\u00ed y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp.<\/span><\/li>\n\n
      • C\u00f4ng nghi\u1ec7p<\/span>: Th\u00edch h\u1ee3p cho tr\u1ee5c ch\u1ecbu l\u1ef1c cao, b\u00ecnh ch\u1ecbu \u00e1p su\u1ea5t v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng.<\/span><\/li><\/ul>

        S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa \u0111\u1ed9 b\u1ec1n, kh\u1ea3 n\u0103ng ch\u1ed1ng g\u00e3y v\u00e0 \u0111\u1ed9 c\u1ee9ng s\u00e2u khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu t\u1ea3i quan tr\u1ecdng.<\/span><\/p>

        R\u00e8n th\u00e9p D6AC<\/span><\/h2>

        R\u00e8n l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong qu\u00e1 tr\u00ecnh \u0111\u1ecbnh h\u00ecnh th\u00e9p D6AC, trong \u0111\u00f3 v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c nung n\u00f3ng v\u00e0 t\u1ea1o th\u00e0nh th\u00e0nh ph\u1ea7n mong mu\u1ed1n.<\/span><\/p>

        • Nhi\u1ec7t \u0111\u1ed9 gia nhi\u1ec7t:<\/span>\u00a0<\/span>2000-2250\u00b0F (1093-1232\u00b0C)<\/span>.<\/span><\/li>\n\n
        • R\u00e8n khu\u00f4n k\u00edn:<\/span>\u00a0Nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n gi\u00fap c\u1ea3i thi\u1ec7n d\u00f2ng ch\u1ea3y c\u1ee7a v\u1eadt li\u1ec7u.<\/span><\/li>\n\n
        • Nhi\u1ec7t \u0111\u1ed9 r\u00e8n cu\u1ed1i c\u00f9ng:<\/span>\u00a0Kh\u00f4ng n\u00ean th\u1ea3 xu\u1ed1ng d\u01b0\u1edbi <\/span>1700\u00b0F (927\u00b0C)<\/span>\u00a0\u0111\u1ec3 tr\u00e1nh m\u1ea5t \u0111\u1ed9 d\u1ebbo.<\/span><\/li>\n\n
        • Chu tr\u00ecnh l\u00e0m m\u00e1t:<\/span>\u00a0Sau khi r\u00e8n, th\u00e9p \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o l\u00f2 nung \u1edf <\/span>1200-1300\u00b0F (649-704\u00b0C)<\/span>, ng\u00e2m theo y\u00eau c\u1ea7u, sau \u0111\u00f3 l\u00e0m ngu\u1ed9i t\u1eeb t\u1eeb \u0111\u1ebfn <\/span>1000\u00b0F (538\u00b0C)<\/span>\u00a0tr\u01b0\u1edbc khi l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed.<\/span><\/li><\/ul>

          X\u1eed l\u00fd nhi\u1ec7t th\u00e9p D6AC<\/span><\/h2>

          1. Chu\u1ea9n h\u00f3a<\/span><\/h3>

          \u0110\u1ec3 tinh ch\u1ec9nh c\u1ea5u tr\u00fac h\u1ea1t v\u00e0 t\u0103ng c\u01b0\u1eddng c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, th\u00e9p D6AC tr\u01b0\u1edbc ti\u00ean \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a b\u1eb1ng c\u00e1ch nung n\u00f3ng \u0111\u1ebfn <\/span>1700\u00b0F (927\u00b0C)<\/span> ti\u1ebfp theo l\u00e0 l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed. B\u01b0\u1edbc n\u00e0y c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai v\u00e0 chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u cho qu\u00e1 tr\u00ecnh l\u00e0m c\u1ee9ng ti\u1ebfp theo.<\/span><\/p>

          2. L\u00e0m c\u1ee9ng (L\u00e0m ngu\u1ed9i)<\/span><\/h3>

          \u0110\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng t\u1ed1i \u01b0u, th\u00e9p D6AC th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng b\u1eb1ng c\u00e1ch nung n\u00f3ng \u0111\u1ebfn <\/span>1700\u00b0F (927\u00b0C)<\/span> trong m\u00f4i tr\u01b0\u1eddng b\u1ea3o v\u1ec7 \u0111\u1ec3 ng\u0103n ch\u1eb7n qu\u00e1 tr\u00ecnh oxy h\u00f3a b\u1ec1 m\u1eb7t. Ph\u01b0\u01a1ng ph\u00e1p l\u00e0m ngu\u1ed9i ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y c\u1ee7a ph\u1ea7n:<\/span><\/p>

          • C\u00e1c ph\u1ea7n m\u1ecfng (<1 inch \/ 25 mm):<\/span>\u00a0L\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed l\u00e0 \u0111\u1ee7.<\/span><\/li>\n\n
          • Ph\u1ea7n l\u1edbn h\u01a1n:<\/span>\u00a0Y\u00eau c\u1ea7u l\u00e0m ngu\u1ed9i d\u1ea7u v\u1edbi nhi\u1ec7t \u0111\u1ed9 d\u1ea7u \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t gi\u1eefa <\/span>150-250\u00b0F (65-121\u00b0C)<\/span>.<\/span><\/li>\n\n
          • Ph\u01b0\u01a1ng ph\u00e1p thay th\u1ebf:<\/span>\u00a0L\u00e0m ngu\u1ed9i mu\u1ed1i t\u1ea1i <\/span>400-420\u00b0F (204-218\u00b0C)<\/span>, sau \u0111\u00f3 l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed, \u0111\u00f4i khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u00f3 \u0111\u1ed9 c\u1ee9ng \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n.<\/span><\/li><\/ul>

            3. \u1ee6 \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n mong mu\u1ed1n<\/span><\/h3>

            Sau khi t\u00f4i, qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng \u0111\u1ec3 c\u00e2n b\u1eb1ng \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 dai. Quy tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c n\u00e2ng v\u1eadt li\u1ec7u l\u00ean nhi\u1ec7t \u0111\u1ed9 \u0111\u00e3 \u0111\u1eb7t, duy tr\u00ec trong th\u1eddi gian c\u1ea7n thi\u1ebft, sau \u0111\u00f3 \u0111\u1ec3 ngu\u1ed9i.<\/span><\/p>

            • \u0110\u1ed1i v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o 260 ksi:<\/span>\u00a0T\u00ednh kh\u00ed \u1edf <\/span>575\u00b0F (302\u00b0C)<\/span>\u00a0v\u00ec <\/span>2 gi\u1edd<\/span>, sau \u0111\u00f3 l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed. N\u00ean t\u00f4i luy\u1ec7n g\u1ea5p \u0111\u00f4i.<\/span><\/li>\n\n
            • \u0110\u1ed1i v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o 200 ksi:<\/span>\u00a0T\u00ednh kh\u00ed \u1edf <\/span>1100\u00b0F (593\u00b0C)<\/span>\u00a0v\u00ec <\/span>2 gi\u1edd<\/span>, sau \u0111\u00f3 l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed.<\/span><\/li>\n\n
            • \u0110\u1ed1i v\u1edbi \u0111\u1ed9 b\u1ec1n k\u00e9o 180 ksi:<\/span>\u00a0T\u00ednh kh\u00ed \u1edf <\/span>1150\u00b0F (621\u00b0C)<\/span>\u00a0v\u00ec <\/span>2 gi\u1edd<\/span>, sau \u0111\u00f3 l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed.<\/span><\/li><\/ul>

              Qu\u00e1 tr\u00ecnh t\u00f4i luy\u1ec7n k\u00e9p th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc \u0111\u1ed3ng nh\u1ea5t v\u00e0 gi\u1ea3m \u1ee9ng su\u1ea5t d\u01b0.<\/span><\/p>

              D\u1eef li\u1ec7u t\u00f4i luy\u1ec7n: \u0110\u1ed9 c\u1ee9ng so v\u1edbi nhi\u1ec7t \u0111\u1ed9<\/span><\/h3>
              Nhi\u1ec7t \u0111\u1ed9 t\u00f4i luy\u1ec7n<\/strong><\/td>\u0110\u1ed9 c\u1ee9ng (HRC)<\/strong><\/td><\/tr>
              400\u00b0F (204\u00b0C)<\/td>~60<\/td><\/tr>
              600\u00b0F (316\u00b0C)<\/td>~55<\/td><\/tr>
              800\u00b0F (427\u00b0C)<\/td>~50<\/td><\/tr>
              1000\u00b0F (538\u00b0C)<\/td>~45<\/td><\/tr>
              1200\u00b0F (649\u00b0C)<\/td>~40<\/td><\/tr><\/tbody><\/table><\/figure>

              4. \u1ee6 (L\u00e0m m\u1ec1m \u0111\u1ec3 gia c\u00f4ng)<\/span><\/h2>

              N\u1ebfu c\u1ea7n gia c\u00f4ng ho\u1eb7c t\u1ea1o h\u00ecnh tr\u01b0\u1edbc khi x\u1eed l\u00fd nhi\u1ec7t cu\u1ed1i c\u00f9ng, qu\u00e1 tr\u00ecnh \u1ee7 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch nung n\u00f3ng \u0111\u1ebfn <\/span>1500-1550\u00b0F (816-843\u00b0C)<\/span>, theo sau l\u00e0 <\/span>l\u00f2 l\u00e0m m\u00e1t \u1edf 50\u00b0F (28\u00b0C) m\u1ed9t gi\u1edd<\/span> xu\u1ed1ng t\u1edbi <\/span>1000\u00b0F (538\u00b0C)<\/span> tr\u01b0\u1edbc khi l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra v\u1eadt li\u1ec7u m\u1ec1m h\u01a1n, d\u1ec5 gia c\u00f4ng h\u01a1n.<\/span><\/p>

              Th\u00e9p D6AC <\/span>Gia c\u00f4ng<\/span><\/h2>

              Sau khi v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t ho\u1eb7c \u1ee7, c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng gia c\u00f4ng. Do th\u00e9p D6AC c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai \u0111\u1eb7c bi\u1ec7t n\u00ean \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft trong qu\u00e1 tr\u00ecnh gia c\u00f4ng.<\/span><\/p>

              • X\u1ebfp h\u1ea1ng kh\u1ea3 n\u0103ng gia c\u00f4ng:<\/span>\u00a0<\/span>50-55%<\/span>\u00a0c\u1ee7a v\u00edt AISI B1112.<\/span><\/li>\n\n
              • C\u00e1c c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t:<\/span>\u00a0<\/span>D\u1ee5ng c\u1ee5 b\u1eb1ng cacbua ho\u1eb7c th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS)<\/span>\u00a0\u0111\u1ec3 ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t h\u01a1n.<\/span><\/li>\n\n
              • Ch\u1ea5t l\u1ecfng c\u1eaft:<\/span>\u00a0<\/span>D\u1ea7u l\u01b0u hu\u1ef3nh ho\u1eb7c d\u1ea7u clo<\/span>\u00a0gi\u00fap gi\u1ea3m hao m\u00f2n d\u1ee5ng c\u1ee5 v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 gia c\u00f4ng.<\/span><\/li>\n\n
              • X\u1eed l\u00fd sau gia c\u00f4ng:<\/span>\u00a0<\/span>\u0110\u1ed1i v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o tr\u00ean 200 ksi, n\u00ean x\u1eed l\u00fd gi\u1ea3m \u1ee9ng su\u1ea5t (800\u00b0F \/ 427\u00b0C trong 3 gi\u1edd)<\/span>.<\/span><\/li><\/ul>

                H\u00e0n th\u00e9p D6AC<\/span><\/h2>

                Th\u00e9p D6AC l\u00e0 <\/span>c\u00f3 th\u1ec3 h\u00e0n \u0111\u01b0\u1ee3c<\/span>, nh\u01b0ng do c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m c\u1ee9ng cao n\u00ean c\u1ea7n ph\u1ea3i ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd qu\u00e1 tr\u00ecnh gia nhi\u1ec7t tr\u01b0\u1edbc v\u00e0 x\u1eed l\u00fd nhi\u1ec7t sau h\u00e0n.<\/span><\/p>

                • Nhi\u1ec7t \u0111\u1ed9 l\u00e0m n\u00f3ng tr\u01b0\u1edbc:<\/span>\u00a0<\/span>450-550\u00b0F (232-288\u00b0C)<\/span>\u00a0tr\u01b0\u1edbc khi h\u00e0n.<\/span><\/li>\n\n
                • Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n:<\/span><\/li><\/ul>
                  • C\u00e1c ph\u1ea7n m\u1ecfng:<\/span>\u00a0H\u00e0n kh\u00ed tr\u01a1 vonfram (TIG).<\/span><\/li>\n\n
                  • Ph\u1ea7n d\u00e0y h\u01a1n:<\/span>\u00a0H\u00e0n h\u1ed3 quang kim lo\u1ea1i b\u1eb1ng kh\u00ed (GMAW) v\u1edbi <\/span>kim lo\u1ea1i ph\u1ee5 ph\u00f9 h\u1ee3p<\/span>.<\/span><\/li>\n\n
                  • X\u1eed l\u00fd nhi\u1ec7t sau khi h\u00e0n:<\/span><\/li><\/ul>
                    • Gi\u1eef \u1edf <\/span>600\u00b0F (316\u00b0C)<\/span>\u00a0sau khi h\u00e0n, sau \u0111\u00f3 l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed <\/span>300\u00b0F (149\u00b0C)<\/span>.<\/span><\/li>\n\n
                    • Th\u1ef1c hi\u1ec7n ngay qu\u00e1 tr\u00ecnh \u1ee7 gi\u1ea3m \u1ee9ng su\u1ea5t \u1edf nhi\u1ec7t \u0111\u1ed9 1000\u00b0F (538\u00b0C)<\/span>\u00a0\u0111\u1ec3 ng\u0103n ng\u1eeba \u1ee9ng su\u1ea5t d\u01b0.<\/span><\/li>\n\n
                    • \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng, n\u00ean th\u1ef1c hi\u1ec7n chu tr\u00ecnh chu\u1ea9n h\u00f3a + \u1ee7 ho\u00e0n ch\u1ec9nh.<\/span><\/li><\/ul>

                      Th\u00e9p D6AC so v\u1edbi th\u00e9p 4340<\/span><\/h2>

                      Th\u00e9p D6AC c\u1ee9ng v\u00e0 b\u1ec1n h\u01a1n th\u00e9p 4340.<\/span><\/p>

                      M\u1eb7c d\u00f9 c\u1ea3 hai \u0111\u1ec1u c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec7t, D6AC \u0111\u00f2i h\u1ecfi ph\u1ea3i ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh x\u1eed l\u00fd ch\u1eb7t ch\u1ebd h\u01a1n \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 b\u1ec1n c\u1ef1c cao. M\u1eb7t kh\u00e1c, 4340 d\u1ec5 gia c\u00f4ng v\u00e0 h\u00e0n h\u01a1n, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn linh ho\u1ea1t h\u01a1n cho c\u00e1c th\u00e0nh ph\u1ea7n \u00f4 t\u00f4, c\u00f4ng nghi\u1ec7p v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 n\u00f3i chung. N\u1ebfu c\u1ea7n \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi t\u1ed1i \u0111a, D6AC l\u00e0 l\u1ef1a ch\u1ecdn v\u01b0\u1ee3t tr\u1ed9i.<\/span><\/p>

                      Nh\u1eadn th\u00e9p D6AC hi\u1ec7u su\u1ea5t cao t\u1eeb SteelPro Group<\/span><\/h2>

                      SteelPro Group cung c\u1ea5p <\/span>th\u00e9p h\u1ee3p kim D6AC \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn<\/span> cho c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, qu\u1ed1c ph\u00f2ng v\u00e0 c\u00f4ng nghi\u1ec7p. V\u1edbi <\/span>kho \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c, kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c \u0111\u1ea7y \u0111\u1ee7 v\u00e0 s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a chuy\u00ean gia<\/span>, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o b\u1ea1n s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho c\u00f4ng vi\u1ec7c.<\/span><\/p>

                      H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay \u0111\u1ec3 th\u1ea3o lu\u1eadn v\u1ec1 nhu c\u1ea7u th\u00e9p D6AC c\u1ee7a b\u1ea1n. \u0110\u1ed9i ng\u0169 c\u1ee7a ch\u00fang t\u00f4i s\u1eb5n s\u00e0ng h\u1ed7 tr\u1ee3 c\u00e1c \u0111\u01a1n \u0111\u1eb7t h\u00e0ng t\u00f9y ch\u1ec9nh, h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 gi\u00e1 c\u1ea3 c\u1ea1nh tranh!<\/span><\/p>

                      <\/p>","protected":false},"excerpt":{"rendered":"

                      Kh\u00e1m ph\u00e1 \u0111\u1ed9 b\u1ec1n, quy tr\u00ecnh ch\u1ebf bi\u1ebfn v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p h\u1ee3p kim D6AC trong h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 qu\u1ed1c ph\u00f2ng. SteelPro Group cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p th\u00e9p ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn.<\/p>","protected":false},"author":1,"featured_media":21797,"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":[4308],"tags":[],"class_list":["post-21796","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alloy-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/21796","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=21796"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/21796\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/21797"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=21796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=21796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=21796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}