发明名称 |
Hard alloy containing molybdenum |
摘要 |
This invention relates to a hard alloy comprising two phases: a hard phase consisting of at least one compound having a crystal structure of simple hexagonal MC type (M: metal; C: carbon) selected from the group consisting of mixed carbides, carbonitrides and carboxynitrides of molybdenum and tungsten, and a binder phase consisting of at least one element selected from the group consisting of iron, cobalt and nickel. The hard phase is prepared by carburizing an (Mo, W) alloy obtained by reducing oxides of molybdenum and tungsten with a particle size of at most 1 micron, is composed of coarse particles with a mean particle size of at least 3 microns, and has a uniform molybdenum to tungsten ratio in the particles. The hard alloy has a gross composition within the range of the shaded portion ABCDEA in FIG. 1.
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申请公布号 |
US4639352(A) |
申请公布日期 |
1987.01.27 |
申请号 |
US19850808228 |
申请日期 |
1985.12.13 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
KODAMA, MITSUO;MIYAKE, MASAYA;NAKANO, MINOL;ASAI, TSUYOSHI;HARA, AKIO |
分类号 |
C01B31/30;C01B31/34;C22C1/05;C22C29/00;C22C29/02;(IPC1-7):C22C29/02 |
主分类号 |
C01B31/30 |
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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