{"id":20207,"date":"2025-01-06T02:44:00","date_gmt":"2025-01-05T18:44:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20207"},"modified":"2025-01-09T16:47:43","modified_gmt":"2025-01-09T08:47:43","slug":"high-speed","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/types\/high-speed\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn th\u00e9p c\u00f4ng c\u1ee5 t\u1ed1c \u0111\u1ed9 cao"},"content":{"rendered":"

Th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS) \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a th\u1ebf gi\u1edbi gia c\u00f4ng. T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i chuy\u00ean cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p HSS ch\u1ea5t l\u01b0\u1ee3ng cao ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n. <\/p>

Th\u00e9p t\u1ed1c \u0111\u1ed9 cao l\u00e0 g\u00ec?<\/h2>

Th\u00e9p t\u1ed1c \u0111\u1ed9 cao l\u00e0 th\u00e9p c\u00f4ng c\u1ee5 h\u1ee3p kim n\u1ed5i ti\u1ebfng v\u00ec duy tr\u00ec \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u1edf nhi\u1ec7t \u0111\u1ed9 cao. \u0110\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh c\u00e1c lo\u1ea1i g\u1ed1c vonfram (d\u00f2ng T), g\u1ed1c molypden (d\u00f2ng M) v\u00e0 g\u1ed1c coban (d\u00f2ng K), lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 \u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t. V\u1edbi \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 b\u1eb1ng th\u00e9p cacbon truy\u1ec1n th\u1ed1ng, lo\u1ea1i th\u00e9p n\u00e0y \u0111\u1ea1t 62-65 HRC sau khi x\u1eed l\u00fd nhi\u1ec7t. Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng gia c\u00f4ng t\u1ed1c \u0111\u1ed9 cao, lo\u1ea1i th\u00e9p n\u00e0y l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 c\u1eaft nh\u01b0 m\u00e1y khoan v\u00e0 m\u00e1y phay \u0111\u1ea7u.<\/p>

T\u1ea1i sao l\u1ea1i g\u1ecdi l\u00e0 th\u00e9p t\u1ed1c \u0111\u1ed9 cao?<\/h3>

N\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 "th\u00e9p t\u1ed1c \u0111\u1ed9 cao" v\u00ec n\u00f3 gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng \u1edf t\u1ed1c \u0111\u1ed9 c\u1eaft cao, ngay c\u1ea3 khi \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ebfn kho\u1ea3ng 1100\u00b0F (593\u00b0C). Kh\u1ea3 n\u0103ng n\u00e0y, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf, cho ph\u00e9p n\u00f3 ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 cao h\u01a1n nhi\u1ec1u so v\u1edbi th\u00e9p cacbon th\u00f4ng th\u01b0\u1eddng.<\/p>

Th\u00e9p t\u1ed1c \u0111\u1ed9 cao c\u00f3 nh\u1eefng t\u00ednh ch\u1ea5t g\u00ec?<\/h2>

H\u00e0m l\u01b0\u1ee3ng h\u1ee3p kim cao<\/strong>:Th\u00e9p t\u1ed1c \u0111\u1ed9 cao ch\u1ee9a h\u1ed7n h\u1ee3p c\u00e1c nguy\u00ean t\u1ed1 nh\u01b0 vonfram, molypden, crom, vanadi v\u00e0 \u0111\u00f4i khi l\u00e0 coban.<\/p>

\u0110\u1ed9 c\u1ee9ng cao<\/strong>: Sau khi x\u1eed l\u00fd nhi\u1ec7t, HSS th\u01b0\u1eddng \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng trong kho\u1ea3ng 62-65 Rockwell C (HRC). N\u00f3 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p>

Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n \u0111\u1eb7c bi\u1ec7t<\/strong>: H\u00e0m l\u01b0\u1ee3ng carbide (ch\u1ee7 y\u1ebfu l\u00e0 tungsten, molypden v\u00e0 vanadi carbide) trong HSS l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n. N\u00f3 duy tr\u00ec l\u01b0\u1ee1i c\u1eaft l\u00e2u h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5 kh\u00e1c.<\/p>

\u0110\u1ed9 b\u1ec1n c\u00e2n b\u1eb1ng<\/strong>: HSS c\u00f3 s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo dai. M\u1eb7c d\u00f9 kh\u00f4ng d\u1ebbo dai b\u1eb1ng th\u00e9p d\u1ee5ng c\u1ee5 l\u00e0m vi\u1ec7c ngu\u1ed9i, nh\u01b0ng n\u00f3 d\u1ebbo dai h\u01a1n c\u00e1c d\u1ee5ng c\u1ee5 cacbua, gi\u00f2n h\u01a1n khi so s\u00e1nh.<\/p>

Chi ph\u00ed t\u01b0\u01a1ng \u0111\u1ed1i cao<\/strong>:Th\u00e9p t\u1ed1c \u0111\u1ed9 cao \u0111\u1eaft h\u01a1n th\u00e9p cacbon th\u00f4ng th\u01b0\u1eddng do c\u00e1c th\u00e0nh ph\u1ea7n h\u1ee3p kim v\u00e0 x\u1eed l\u00fd nhi\u1ec7t chuy\u00ean d\u1ee5ng. Tuy nhi\u00ean, chi ph\u00ed \u0111\u01b0\u1ee3c b\u00f9 \u0111\u1eafp b\u1eb1ng kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 cao h\u01a1n.<\/p>

T\u1ed5ng quan v\u1ec1 c\u00e1c lo\u1ea1i v\u00e0 c\u1ea5p th\u00e9p t\u1ed1c \u0111\u1ed9 cao<\/h2>

\u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111a d\u1ea1ng c\u1ee7a ho\u1ea1t \u0111\u1ed9ng c\u1eaft v\u00e0 gia c\u00f4ng, HSS \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh nhi\u1ec1u lo\u1ea1i d\u1ef1a tr\u00ean c\u00e1c th\u00e0nh ph\u1ea7n h\u1ee3p kim v\u00e0 \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c ph\u00e2n lo\u1ea1i ch\u00ednh:<\/p>

D\u1ef1a tr\u00ean Vonfram (D\u00f2ng T)<\/h3>

\u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi h\u00e0m l\u01b0\u1ee3ng vonfram cao, lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf tuy\u1ec7t v\u1eddi, l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 c\u1eaft nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 dao phay.<\/p>

  • M1<\/strong>: HSS \u0111a n\u0103ng th\u00edch h\u1ee3p cho vi\u1ec7c c\u1eaft ng\u1eaft qu\u00e3ng, mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u1ed3ng nh\u1ea5t trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/li>\n\n
  • M7<\/strong>: Lo\u1ea1i th\u00e9p HSS bi\u1ebfn t\u00ednh N c\u00f3 \u0111\u1ed9 c\u1ee9ng tuy\u1ec7t v\u1eddi, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u0169i khoan xo\u1eafn v\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 ch\u00ednh x\u00e1c kh\u00e1c.<\/li><\/ul>

    D\u1ef1a tr\u00ean Molypden (D\u00f2ng M)<\/h3>

    V\u1edbi h\u00e0m l\u01b0\u1ee3ng molypden cao h\u01a1n, s\u1ea3n ph\u1ea9m n\u00e0y ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n so v\u1edbi T-Series trong khi v\u1eabn mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho c\u00e1c c\u00f4ng c\u1ee5 \u0111a n\u0103ng nh\u01b0 m\u00e1y khoan v\u00e0 v\u00f2i.<\/p>

    • M2<\/strong>: HSS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t, c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n, hi\u1ec7u qu\u1ea3 c\u1eaft v\u00e0 chi ph\u00ed, l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 \u0111a n\u0103ng.<\/li>\n\n
    • M2 Euro<\/strong>: M\u1ed9t bi\u1ebfn th\u1ec3 C cao c\u1ee7a M2, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf Ch\u00e2u \u00c2u, c\u00f3 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n m\u1ed9t ch\u00fat v\u1edbi \u0111\u1ed9 d\u1ebbo dai gi\u1ea3m m\u1ed9t ch\u00fat.<\/li>\n\n
    • M3-1<\/strong>:\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi h\u00e0m l\u01b0\u1ee3ng C v\u00e0 V cao h\u01a1n, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t h\u01a1n v\u00e0 duy tr\u00ec c\u00e1c \u0111\u1eb7c t\u00ednh trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n\n
    • M3-2<\/strong>: C\u00f3 C v\u00e0 V cao h\u01a1n M3-1, c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t c\u1eaft v\u00e0 tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5.<\/li>\n\n
    • M4<\/strong>: \u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao do c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn VC c\u1ee9ng, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1eaft \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/li><\/ul>

      D\u1ef1a tr\u00ean Coban (D\u00f2ng K ho\u1eb7c T\u1eadp h\u1ee3p con c\u1ee7a D\u00f2ng M)<\/h3>

      \u0110\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng b\u1eb1ng coban (v\u00ed d\u1ee5: M35, M42), s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1ed9 c\u1ee9ng m\u00e0u \u0111\u1ecf v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i, ho\u00e0n h\u1ea3o \u0111\u1ec3 c\u1eaft c\u00e1c v\u1eadt li\u1ec7u c\u1ee9ng nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9.<\/p>

      • M35<\/strong>: Phi\u00ean b\u1ea3n t\u0103ng c\u01b0\u1eddng c\u1ee7a M2, c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho c\u00e1c d\u1ee5ng c\u1ee5 c\u1eaft \u1edf Ch\u00e2u \u00c2u.<\/li>\n\n
      • M42<\/strong>: Th\u00e9p HSS si\u00eau b\u1ec1n c\u00f3 h\u00e0m l\u01b0\u1ee3ng Co cao, mang l\u1ea1i \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u01b0\u1ee3t tr\u1ed9i, d\u1ef1a v\u00e0o \u0111\u1ed9 c\u1ee9ng thay v\u00ec l\u01b0\u1ee3ng VC l\u1edbn.<\/li>\n\n
      • CPM Rex76\/M48<\/strong>: Th\u00e9p HSS PM cao c\u1ea5p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t d\u00e0i, gia c\u00f4ng h\u1ea1ng n\u1eb7ng v\u00e0 v\u1eadt li\u1ec7u m\u00e0i m\u00f2n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c d\u1ee5ng c\u1ee5 phay.<\/li><\/ul>

        Th\u00e9p t\u1ed1c \u0111\u1ed9 cao c\u0169ng bao g\u1ed3m hai lo\u1ea1i \u0111\u1ed9c \u0111\u00e1o nh\u01b0 sau:<\/p>

        \u0110i\u1ec3m CPM<\/strong> nh\u01b0 CPM M4 v\u00e0 CPM T15 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p luy\u1ec7n kim b\u1ed9t, \u0111\u1ea3m b\u1ea3o c\u1ea5u tr\u00fac vi m\u00f4 \u0111\u1ed3ng nh\u1ea5t gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n. Quy tr\u00ecnh s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn c\u1ee7a ch\u00fang khi\u1ebfn ch\u00fang \u0111\u1eaft h\u01a1n nh\u01b0ng l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>

        • CPM4<\/strong>: M\u1ed9t bi\u1ebfn th\u1ec3 PM c\u1ee7a M4 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 tin c\u1eady v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng gia c\u00f4ng ngu\u1ed9i nh\u01b0 \u0111\u1ed9t v\u00e0 khu\u00f4n.<\/li>\n\n
        • CPMT15<\/strong>:M\u1ed9t bi\u1ebfn th\u1ec3 PM c\u1ee7a T15 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng m\u00e0i \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh s\u1ef1 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c d\u1ee5ng c\u1ee5 doa.<\/li>\n\n
        • PM30<\/strong>: Bi\u1ebfn th\u1ec3 PM t\u0103ng c\u01b0\u1eddng c\u1ee7a M3-2 k\u1ebft h\u1ee3p \u0111\u1ed9 b\u1ec1n cao v\u1edbi hi\u1ec7u su\u1ea5t c\u1eaft tuy\u1ec7t v\u1eddi, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao.<\/li><\/ul>

          Th\u00e9p t\u1ed1c \u0111\u1ed9 cao trung b\u00ecnh<\/strong> c\u00f3 \u00edt vonfram v\u00e0 molypden h\u01a1n, khi\u1ebfn n\u00f3 c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n trong khi v\u1eabn b\u1ec1n v\u00e0 c\u1ee9ng. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 ph\u1eadn h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 c\u00f4ng nghi\u1ec7p, n\u01a1i kh\u00f4ng c\u1ea7n c\u1eaft t\u1ed1c \u0111\u1ed9 cao ho\u1eb7c kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ef1c cao v\u00e0 \u01b0a th\u00edch x\u1eed l\u00fd d\u1ec5 d\u00e0ng h\u01a1n.<\/p>

          • M50<\/strong>: Th\u00e9p HSS trung gian ti\u1ebft ki\u1ec7m chi ph\u00ed, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 m\u0169i khoan xo\u1eafn v\u00e0 thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn g\u1ed7 khi \u0111\u1ed9 c\u1ee9ng \u0111\u1ecf kh\u00f4ng qu\u00e1 quan tr\u1ecdng.<\/li><\/ul>

            Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a c\u00e1c lo\u1ea1i th\u00e9p t\u1ed1c \u0111\u1ed9 cao<\/h3>
            Ki\u1ec3u<\/strong><\/td>\u0110i\u1ec3m s\u1ed1<\/strong><\/td>C<\/strong><\/td>Mn<\/strong><\/td>Si<\/strong><\/td>Cr<\/strong><\/td>T<\/strong><\/td>T\u00f4i<\/strong><\/td>V<\/strong><\/td>\u0110\u1ed3ng<\/strong><\/td><\/tr>
            D\u00f2ng T<\/td>M1<\/td>0.82<\/td>0.25<\/td>0.4<\/td>3.75<\/td>1.55<\/td>8.5<\/td>1.15<\/td>–<\/td><\/tr>
            D\u00f2ng M<\/td>M2<\/td>0.85<\/td>0.25<\/td>0.3<\/td>4.15<\/td>6<\/td>4.8<\/td>1.85<\/td>–<\/td><\/tr>
            D\u00f2ng M<\/td>M2 Euro<\/td>0.91<\/td>0.25<\/td>0.3<\/td>4<\/td>6.15<\/td>4.85<\/td>1.75<\/td>–<\/td><\/tr>
            D\u00f2ng M<\/td>M3-1<\/td>1.04<\/td>0.25<\/td>0.3<\/td>3.9<\/td>5.9<\/td>4.9<\/td>2.35<\/td>–<\/td><\/tr>
            D\u00f2ng M<\/td>M3-2<\/td>1.21<\/td>0.25<\/td>0.3<\/td>4.1<\/td>6<\/td>5.5<\/td>2.9<\/td>–<\/td><\/tr>
            D\u00f2ng M<\/td>M4<\/td>1.33<\/td>0.25<\/td>0.3<\/td>4.5<\/td>5.5<\/td>5.5<\/td>3.85<\/td>–<\/td><\/tr>
            D\u00f2ng PM<\/td>CPM-M4<\/td>1.45<\/td>0.25<\/td>0.3<\/td>4.5<\/td>5.5<\/td>5.5<\/td>3.85<\/td>–<\/td><\/tr>
            D\u00f2ng T<\/td>M7<\/td>1<\/td>0.3<\/td>0.4<\/td>3.6<\/td>1.6<\/td>8.55<\/td>1.9<\/td>–<\/td><\/tr>
            \u0110\u1ed3ng lo\u1ea1t<\/td>M35<\/td>0.93<\/td>0.3<\/td>0.3<\/td>4.2<\/td>6.25<\/td>5<\/td>1.9<\/td>4.9<\/td><\/tr>
            \u0110\u1ed3ng lo\u1ea1t<\/td>M42<\/td>1.08<\/td>0.3<\/td>0.45<\/td>3.85<\/td>1.5<\/td>9.5<\/td>1.2<\/td>8<\/td><\/tr>
            \u0110\u1ed3ng lo\u1ea1t<\/td>CPM Rex 76\/M48<\/td>1.55<\/td>0.2<\/td>0.4<\/td>4<\/td>10<\/td>5.25<\/td>3.1<\/td>9<\/td><\/tr>
            Int-Series<\/td>M50<\/td>0.83<\/td>0.3<\/td>0.3<\/td>4.1<\/td>1.15<\/td>4.5<\/td>1.05<\/td>–<\/td><\/tr>
            Int-Series<\/td>M52<\/td>0.9<\/td>0.3<\/td>0.3<\/td>4.2<\/td>1.15<\/td>4.5<\/td>1.95<\/td>–<\/td><\/tr>
            D\u00f2ng PM<\/td>CPMT15<\/td>1.6<\/td>0.3<\/td>0.3<\/td>4.25<\/td>12.25<\/td>0.75<\/td>5<\/td>5<\/td><\/tr>
            D\u00f2ng PM<\/td>PM30<\/td>1.28<\/td>0.3<\/td>0.3<\/td>4.2<\/td>6.4<\/td>5<\/td>3.1<\/td>8<\/td><\/tr><\/tbody><\/table><\/figure>

            So s\u00e1nh hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c lo\u1ea1i th\u00e9p t\u1ed1c \u0111\u1ed9 cao<\/h3>
            \u0110i\u1ec3m s\u1ed1<\/strong><\/td>Nh\u00e2n s\u1ef1<\/strong><\/td>Kh\u1ea3 n\u0103ng gia c\u00f4ng<\/strong><\/td><\/tr>
            M1<\/td>55<\/td>65<\/td><\/tr>
            M2<\/td>50<\/td>65<\/td><\/tr>
            M2 Euro<\/td>50<\/td>65<\/td><\/tr>
            M3-1<\/td>40<\/td>66<\/td><\/tr>
            M3-2<\/td>35<\/td>66<\/td><\/tr>
            M4<\/td>35<\/td>65<\/td><\/tr>
            CPM4<\/td>45<\/td>65<\/td><\/tr>
            M7<\/td>45<\/td>66<\/td><\/tr>
            M35<\/td>45<\/td>65<\/td><\/tr>
            M42<\/td>35<\/td>68<\/td><\/tr>
            CPM Rex76\/M48<\/td>15<\/td>69<\/td><\/tr>
            M50<\/td>65<\/td>63<\/td><\/tr>
            CPMT15<\/td>25<\/td>67<\/td><\/tr>
            PM30<\/td>30<\/td>67<\/td><\/tr><\/tbody><\/table><\/figure>

            Th\u00e9p t\u1ed1c \u0111\u1ed9 cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h2>
            • M\u0169i khoan<\/li>\n\n
            • M\u00e1y phay cu\u1ed1i<\/li>\n\n
            • V\u00f2i v\u00e0 Khu\u00f4n<\/li>\n\n
            • M\u00e1y doa<\/li>\n\n
            • L\u01b0\u1ee1i c\u01b0a<\/li>\n\n
            • D\u1ee5ng c\u1ee5 ti\u1ec7n<\/li>\n\n
            • M\u00e1y c\u1eaft b\u00e1nh r\u0103ng<\/li>\n\n
            • Tr\u00e2m c\u00e0i<\/li>\n\n
            • \u0110\u1ea5m<\/li><\/ul>

              Th\u00e9p t\u1ed1c \u0111\u1ed9 cao \u0111\u01b0\u1ee3c ph\u00e1t minh khi n\u00e0o?<\/h2>

              Th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS) \u0111\u01b0\u1ee3c Frederick Winslow Taylor v\u00e0 Maunsel White ph\u00e1t minh v\u00e0o n\u0103m 1910. \u0110\u00e2y l\u00e0 b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong c\u00f4ng ngh\u1ec7 d\u1ee5ng c\u1ee5 c\u1eaft. Sau \u0111\u00e2y l\u00e0 t\u1ed5ng quan ng\u1eafn g\u1ecdn v\u1ec1 c\u00e1c c\u1ed9t m\u1ed1c quan tr\u1ecdng trong l\u1ecbch s\u1eed th\u00e9p t\u1ed1c \u0111\u1ed9 cao.<\/p>

              1868<\/strong>: Robert Forester Mushet \u0111\u00e3 ph\u00e1t tri\u1ec3n th\u00e9p Mushet, ti\u1ec1n th\u00e2n c\u1ee7a HSS hi\u1ec7n \u0111\u1ea1i. N\u00f3 ch\u1ee9a 2% C, 2,5% Mn v\u00e0 7% W, v\u00e0 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng khi l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed.<\/p>

              1899\u20131900<\/strong>: Frederick Winslow Taylor v\u00e0 Maunsel White t\u1ea1i Bethlehem Steel \u0111\u00e3 c\u1ea3i ti\u1ebfn th\u00e9p c\u00f4ng c\u1ee5 nh\u01b0 th\u00e9p Mushet th\u00f4ng qua c\u00e1c th\u00ed nghi\u1ec7m. Quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t c\u1ee7a h\u1ecd cho ph\u00e9p th\u00e9p gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, t\u0103ng g\u1ea5p ba l\u1ea7n t\u1ed1c \u0111\u1ed9 c\u1eaft. \u0110\u00e2y tr\u1edf th\u00e0nh quy tr\u00ecnh Taylor-White, \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u t\u1ea1i Tri\u1ec3n l\u00e3m Paris n\u0103m 1900.<\/p>

              1910<\/strong>:HSS \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i ch\u00ednh th\u1ee9c \u0111\u1ea7u ti\u00ean, AISI T1, \u0111\u00e3 \u0111\u01b0\u1ee3c Crucible Steel Co. gi\u1edbi thi\u1ec7u v\u00e0 c\u1ea5p b\u1eb1ng s\u00e1ng ch\u1ebf.<\/p>

              Th\u1eddi k\u1ef3 Th\u1ebf chi\u1ebfn th\u1ee9 II<\/strong>: S\u1ef1 thi\u1ebfu h\u1ee5t v\u1eadt li\u1ec7u d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a HSS g\u1ed1c molypden, ch\u1eb3ng h\u1ea1n nh\u01b0 AISI M1 v\u00e0 M2, cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf ti\u1ebft ki\u1ec7m chi ph\u00ed cho HSS g\u1ed1c vonfram. C\u00e1c lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>

              Th\u00e9p t\u1ed1c \u0111\u1ed9 cao so v\u1edbi th\u00e9p cacbon<\/h2>

              N\u1ebfu \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u qu\u1ea3 c\u1eaft l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u c\u1ee7a b\u1ea1n th\u00ec HSS v\u01b0\u1ee3t tr\u1ed9i h\u01a1n th\u00e9p cacbon r\u1ea5t nhi\u1ec1u.<\/p>

              HSS \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, duy tr\u00ec \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng c\u1eaft ngay c\u1ea3 khi \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ebfn kho\u1ea3ng 1100\u00b0F (593\u00b0C). \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 gia c\u00f4ng nh\u01b0 m\u0169i khoan v\u00e0 v\u00f2i, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf t\u1ed1c \u0111\u1ed9 cao. <\/p>

              Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p cacbon, tuy c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n v\u00e0 d\u1ec5 m\u00e0i h\u01a1n, nh\u01b0ng l\u1ea1i m\u1ea5t \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng gi\u1eef c\u1ea1nh khi \u1edf nhi\u1ec7t \u0111\u1ed9 cao, ch\u1ec9 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng t\u1ed1c \u0111\u1ed9 th\u1ea5p ho\u1eb7c s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 c\u1ea7m tay.<\/p>

              Th\u00e9p t\u1ed1c \u0111\u1ed9 cao so v\u1edbi cacbua<\/h2>

              Carbide cung c\u1ea5p hi\u1ec7u su\u1ea5t cao h\u01a1n cho c\u00e1c nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3. HSS v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn linh ho\u1ea1t, ti\u1ebft ki\u1ec7m chi ph\u00ed cho nhi\u1ec1u m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng h\u01a1n.<\/p>

              D\u1ee5ng c\u1ee5 cacbua v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 gia c\u00f4ng t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 c\u00f3 th\u1ec3 c\u1eaft c\u00e1c v\u1eadt li\u1ec7u c\u1ee9ng h\u01a1n v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u01b0\u1ee3t tr\u1ed9i. Tuy nhi\u00ean, cacbua gi\u00f2n, khi\u1ebfn n\u00f3 \u00edt ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c v\u1ebft c\u1eaft gi\u00e1n \u0111o\u1ea1n ho\u1eb7c c\u00e1c ho\u1ea1t \u0111\u1ed9ng d\u1ec5 va \u0111\u1eadp. <\/p>

              Ng\u01b0\u1ee3c l\u1ea1i, HSS c\u1ee9ng h\u01a1n v\u00e0 d\u1ec5 u\u1ed1n h\u01a1n, l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 \u1ee9ng d\u1ee5ng \u0111a n\u0103ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n khi ch\u1ecbu \u00e1p l\u1ef1c. <\/p>

              H\u1ee3p t\u00e1c v\u1edbi SteelPro Group \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 xu\u1ea5t s\u1eafc v\u1ec1 th\u00e9p t\u1ed1c \u0111\u1ed9 cao<\/h2>

              SteelPro Group cam k\u1ebft cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m HSS ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 h\u01b0\u1edbng d\u1eabn chuy\u00ean m\u00f4n \u0111\u1ec3 gi\u00fap b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau c\u1ee7a m\u00ecnh. Cho d\u00f9 b\u1ea1n \u0111ang n\u00e2ng c\u1ea5p c\u00f4ng c\u1ee5 c\u1ee7a m\u00ecnh hay \u0111ang l\u1eadp k\u1ebf ho\u1ea1ch cho c\u00e1c d\u1ef1 \u00e1n m\u1edbi, h\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1ch c\u00e1c gi\u1ea3i ph\u00e1p c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t. H\u00e3y c\u00f9ng nhau x\u00e2y d\u1ef1ng th\u00e0nh c\u00f4ng c\u1ee7a b\u1ea1n!<\/p>","protected":false},"excerpt":{"rendered":"

              Th\u00e9p t\u1ed1c \u0111\u1ed9 cao (HSS) \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a th\u1ebf gi\u1edbi gia c\u00f4ng. T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i chuy\u00ean cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p HSS ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang [\u2026]<\/p>","protected":false},"author":12,"featured_media":20204,"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":[4302,4293],"tags":[],"class_list":["post-20207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-types","category-tool-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20207","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\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=20207"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20207\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20204"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}