发明名称 |
Impregnated sintered material for electrical contacts and method for its production |
摘要 |
An impregnated sintered material for making electrical contact members which have a low fusing force and little burning in which a powder mixture of W, Ag and/or Cu, a wetting promoting metal, and 2 to 5 percent by weight graphite is granulated thermically, and another 1 to 6 percent by weight graphite admixed to the granules, after which the mixture is compacted to form a skeleton and impregnated with Ag and/or Cu. The carbon contained in the finished material is partly in bound form as WC and partly free carbon in a 1:5 to 5:1 ratio.
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申请公布号 |
US4153755(A) |
申请公布日期 |
1979.05.08 |
申请号 |
US19780880340 |
申请日期 |
1978.02.23 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
ROTHKEGEL, BERNHARD;SCHREINER, HORST |
分类号 |
B22F3/26;C22C30/00;C22C32/00;H01H1/025;H01H1/027;H01H11/04;(IPC1-7):B22F3/00 |
主分类号 |
B22F3/26 |
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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