| 发明名称 |
Cermet blade member for cutting-tools and process for producing same. |
| 摘要 |
<p>A blade member for cutting-tools includes a cermet substrate which contains, apart from unavoidable impurities, a binder phase and a hard dispersed phase. The binder phase contains 5% to 30% by weight of cobalt and/or nickel. The hard dispersed phase contains a balance composite carbo-nitride of titanium and one or more of the elements tungsten, molybdenum, tantalum, niobium, hafnium and zirconium. The composite carbo-nitride satisfies the relationship 0.2 </= b/(a + b) </= 0.7, where a and b denote atomic ratios of carbon and nitrogen, respectively. The substrate includes a hard surface layer in which the maximum hardness is present at a depth between 5 mu m and 50 mu m from a substrate surface thereof. The substrate surface has a hardness of 20% to 90% of the maximum hardness.</p> |
| 申请公布号 |
EP0368336(A2) |
申请公布日期 |
1990.05.16 |
| 申请号 |
EP19890120885 |
申请日期 |
1989.11.10 |
| 申请人 |
MITSUBISHI METAL CORPORATION |
发明人 |
ODANI, NIRO C/O TOKYO-SEISAKUSHO;YOSHIOKA, KAZUYOSHI C/O TOKYO-SEISAKUSHO;SEKIYA, SHINICHI C/O TOKYO-SEISAKUSHO |
| 分类号 |
B23B27/14;C21D3/02;C22C1/05;C22C29/04 |
主分类号 |
B23B27/14 |
| 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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