发明名称 |
Heat resistant sintered hard alloy |
摘要 |
A heat-resistant sintered hard alloy comprises 35% to 95% by weight of a WCoB type complex boride in a cobalt base alloy. The alloy contains 1.5% to 4.1% boron, 19.1% to 69.7% tungsten, optionally to 25% chromium, the balance being cobalt and a maximum of 1% impurities. Nickel, iron and/or copper may be substituted for portions of the cobalt content.
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申请公布号 |
US5238481(A) |
申请公布日期 |
1993.08.24 |
申请号 |
US19920824436 |
申请日期 |
1992.01.23 |
申请人 |
TOYO KOHAN CO., LTD. |
发明人 |
TAKAGI, KENICHI;KOMAI, MASAO;ISOBE, YOSHIHIKO |
分类号 |
B22F5/00;B22F7/06;C22C1/05;C22C29/14;C22C32/00 |
主分类号 |
B22F5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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