发明名称 |
DIAMOND BONDED BODY, TOOL PROVIDED WITH SAME, AND METHOD FOR PRODUCING DIAMOND BONDED BODY |
摘要 |
A bonded diamond body (1) having a high bonded strength is provided. The bonded diamond body (1) includes a sintered polycrystalline diamond body (2), a hard substrate (3), and a hard layer (4) provided between the sintered polycrystalline diamond body (2) and the hard substrate (3), the sintered polycrystalline diamond body (2) containing a diamond grain and a sintering aid, the hard substrate (3) containing tungsten carbide and cobalt, and the hard layer (4) containing cobalt and a hard grain made of a carbide, a nitride, or a carbonitride having a Vickers hardness of 1100 Hv or more. |
申请公布号 |
EP3069806(A1) |
申请公布日期 |
2016.09.21 |
申请号 |
EP20140862191 |
申请日期 |
2014.10.08 |
申请人 |
SUMITOMO ELECTRIC HARDMETAL CORP.;SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
HIGASHI, TAISUKE;YAMAGUCHI, TADASHI;YURUGI, SHINICHIRO;SOGABE, MARI |
分类号 |
B22F7/06;B23B27/14;B23B27/20;C04B37/00 |
主分类号 |
B22F7/06 |
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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