专利名称：ELECTRIC CONTACT MATERIAL发明人：HATAKEYAMA, TAKASHI,UENISHI,
NOBORU,GOMA, NORIHITO,SUZUKI,YASUHIKO
申请号：EP11826653申请日：20110810公开号：EP2620515A4公开日：20141210
摘要：Provided is an electrical contact material excellent in welding resistance, wear-out resistance, and temperature performance. The electrical contact material (31)includes more than 55% by mass and 80% by mass or less of tungsten carbide and 2% bymass or more and 5% by mass or less of graphite, the remainder including silver and anunavoidable impurity, the electrical contact material (31): having a relative density of96.0% or more; an oxygen content of 600 ppm or less; an electrical conductivity of 30%IACS or more; and a transverse rupture strength of 450 MPa or more.
申请人：A.L.M.T. CORP.
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