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    • 81. 发明授权
    • Method of manufacturing carbon brushes for electrical machines
    • 制造电机碳刷的方法
    • US3933687A
    • 1976-01-20
    • US435959
    • 1974-01-23
    • Walter HollMartin Scholpp
    • Walter HollMartin Scholpp
    • H01B1/04H01R39/20H01R43/12H02K13/00H01B1/06
    • H01R39/20H01B1/04H01R43/12
    • A binder consisting of an aromatic polymeric material in which aryl groups are connected together by single-bond linkages over one or more atoms of carbon, sulfur, oxygen, nitrogen, phosphorus or silicon, preferably polyphenylene-sulfide, is mixed with carbon particles, with or without the addition of copper powder and the mixture is then pressed in a mold, removed from the mold, and sintered at a temperature of 300-500.degree.C, preferably about 350.degree.C for about an hour. Even without the presence of metal powder such brushes have qualities comparable to brushes cut from carbon plate material and conventional copper-containing brushes, and have substantially longer life than the former.
    • 由芳族聚合物材料组成的粘合剂,其中芳基通过碳键,硫,氧,氮,磷或硅(优选聚苯硫醚)的一个或多个原子上的单键键连接在一起,与碳颗粒混合, 或者不加入铜粉末,然后将该混合物压在模具中,从模具中取出,并在300-500℃,优选约350℃的温度下烧结约1小时。 即使不存在金属粉末,这样的刷子也具有与碳板材料和常规含铜刷子切割的刷子相当的质量,并且具有比前者更长的寿命。