Schleifkontaktmaterial, Einlage-Verbundmaterial, das Material verwendender Kommutator und den Kommutator verwendender Gleichstrommotor

摘要

PCT No. PCT/JP96/00409 Sec. 371 Date May 6, 1997 Sec. 102(e) Date May 6, 1997 PCT Filed Feb. 23, 1996 PCT Pub. No. WO96/26526 PCT Pub. Date Aug. 29, 1996Sliding contacts comprising alloys such as Pd/Cu/Ag, Pt/Cu/Ag, Pd/Cu/Ag/Ni, Pt/Cu/Ag/Ni, Ag/Pd/Cu,Au, Ag/Pt/Cu/Au and two-layered composites comprising a surface layer of one of the foregoing alloys and a base layer comprised of copper or a copper-containing alloy. Also, three-layered composites comprising a surface layer of one of the foregoing alloys, an intermediate layer of one of the foregoing alloys and a base layer comprised of copper or a copper-containing alloy as well as direct current motors comprising commutators comprising a three-layered composite.