电动机用金属石墨电刷材料的制造方法

Method for manufacturing metal-graphite brush material for motor

Abstract

本发明为了提供一种能够在石墨粒子上形成高密度铜粒子的电动机用金属石墨电刷材料的制造方法,具备下述工序:使铜配合物附着于石墨粒子的附着工序(S1);通过在含氧气氛中对附着有铜配合物的石墨粒子进行热处理,从而分解铜配合物,使铜粒子形成于石墨粒子的表面的热处理工序(S2);将形成有铜粒子的石墨粒子与树脂一起成型而形成成型体的成型工序(S3);在还原气氛中煅烧成型体,将树脂热分解而形成烧结体,并且,将热处理工序中在铜粒子的表层生成的氧化铜还原为铜的还原煅烧工序(S4)。
A process for producing a metallized graphite brush material for motors, in which copper particles can be densely formed on graphite particles. The process comprises: an adhesion step (S1) in which a copper complex is caused to adhere to graphite particles; a heat treatment step (S2) in which the graphite particles having the copper complex adherent thereto are heated in an oxygenous atmosphere to decompose the copper complex and form copper particles on the surface of the graphite particles; a molding step (S3) in which the graphite particles having the copper particles formed thereon are molded together with a resin to form a molding; and a reduction/burning step (S4) in which the molding is burned in a reducing atmosphere to thermally decompose the resin and form a sinter and simultaneously reduce a copper oxide generated in a surface layer of the copper particles in the heat treatment step to copper.

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    CN-1046599-CNovember 17, 1999宝山钢铁(集团)公司, 上海沪东电碳厂Copper-plated carbon fiber metal graphite composite electric brush and manufacture thereof

NO-Patent Citations (3)

    Title
    JP特开2001-298913A 2001.10.26
    JP特开2003-313076A 2003.11.06
    JP特开2004-164926A 2004.06.10

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