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专利名称：Contact of vacuum interrupter and
manufacturing process therefor
发明人：Kashiwagi, Yoshiyuki,Noda, Yasushi,Kitakizaki,
Kaoru
申请号：EP84111022申请日：19840914公开号：EP0137350A3公开日：19851218
专利附图：
摘要：A contact of a vacuum interrupter and a manufacturing process therefor aredisclosed. The contact can greatly reduce the chopping current of the interrupter, can
greatly increase the dielectric strength thereof and can improve the large- and small-current interrupting capabilities thereof. The contact is made of a material containing 29to 74 weight % copper, 15 to 60 weight % chromium, 10 to 35 weight % iron, 0.5 to 15weight % carbon and 0.5 to 15 weight % silicon. The process contains the steps ofproducing a porous matrix by sintering a mixture of all of the elements except copperunder a nonoxidizing atmosphere, impregnating the matrix with copper and machiningthe resultant material.
申请人：Kabushiki Kaisha Meidensha
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