GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRODE FOR ELECTRICAL DISCHARGE MACHINING USING SAID MATERIAL专利检索- ..电化学方法专利检索查询-专利查询网

GRAPHITE-COPPER COMPOSITE ELECTRODE MATERIAL AND ELECTRODE FOR ELECTRICAL DISCHARGE MACHINING USING SAID MATERIAL
申请号	EP15779903	申请日	2015-04-01	公开(公告)号	EP3133048A4	公开(公告)日	2017-12-27
申请人	TOYO TANSO CO;			发明人	KANDA MASAO; OHTA NAOTO; SAITO KIYOSHI; OKADA MASAKI; ONISHI MOTOKI; NAMIKI TAKEYUKI;
摘要	An object is to provide a graphite-copper composite electrode material that is capable of reducing electrode wear to a practically usable level and to provide an electrical discharge machining electrode using the material. A graphite-copper composite electrode material includes a substrate comprising a graphite material and having pores, and copper impregnated in the pores of the substrate, the electrode material having an electrical resistivity of 2.5 µ©m or less, preferably 1.5 µ©m or less, more preferably 1.0 µ©m or less. It is desirable that the substrate comprising the graphite material have an anisotropy ratio of 1.2 or less. It is desirable that an impregnation rate Õ of the copper in the electrode material is 13% or greater. It is desirable that the substrate comprising the graphite material have a bulk density of from 1.40 Mg/m 3 to 1.85 Mg/m 3 .
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