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Impregnated sintered material for electrical contacts and method for its production
Impregnated sintered material for electrical contacts and method for its production
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机译:用于电触头的浸渍烧结材料及其生产方法
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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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