Multilayer brush
    1.
    发明授权
    Multilayer brush 有权
    多层刷

    公开(公告)号:US06815862B2

    公开(公告)日:2004-11-09

    申请号:US10771667

    申请日:2004-02-04

    IPC分类号: H02K1300

    CPC分类号: H01R43/12 H01R39/22

    摘要: In a multilayer brush composed chiefly of copper and graphite and incorporated therein with a solid lubricant, which consists essentially of two types of brushes, a high-copper-content part brush containing the copper in a large quantity and a low-copper-content part brush containing the copper in a small quantity, at least the high-copper-content part brush contains zinc in an amount of from 0.1% by weight to 5% by weight, and the zinc and the copper form an alloy. This can provide a multilayer brush having a superior durability, which can prevent the performance of motors from lowering, without use of the harmful substance such as lead, and may less undergo any wear due to mechanical and electrical sparkling of the brush.

    摘要翻译: 在主要由铜和石墨组成的多层刷子中,其中并入固体润滑剂,其基本上由两种类型的刷子组成,含有大量铜的高铜含量部分刷和低铜含量部分 含有少量铜的刷子,至少高含铜部分刷子含有0.1重量%〜5重量%的锌,锌和铜形成合金。 这可以提供具有优异的耐久性的多层刷,其可以防止电动机的性能下降,而不使用诸如铅的有害物质,并且可能由于刷的机械和电闪闪发光而不会发生任何磨损。

    Pb-free bearing used for fuel-injection pump
    9.
    发明授权
    Pb-free bearing used for fuel-injection pump 有权
    用于燃油喷射泵的无铅轴承

    公开(公告)号:US07883588B2

    公开(公告)日:2011-02-08

    申请号:US11148186

    申请日:2005-06-09

    IPC分类号: C22C9/00 F16C32/12

    摘要: In a Cu—Bi based sintered alloy, to which hard particles, such as Fe3P, are added, the main constituent components of the microstructure are a Cu matrix, Bi phase and the hard particles. In the sintering method of the present invention, the flow of the Bi phase is suppressed to as low level as possible. The novel structure is that the contact between the Bi phase and hard particles is kept to a low ratio. A lead-free bearing used for a fuel injection pump according to the present invention contains from 1 to 30 mass % of Bi and from 0.1 to 10 mass % of hard particles having from 10 to 50 μm of the average particle diameter, the balance being Cu and unavoidable impurities. The properties of the main component phases are utilized at a high level such that the sliding properties are equivalent to those of a Pb containing Cu-based sintered alloy.

    摘要翻译: 在添加Fe 3 P等硬质粒子的Cu-Bi系烧结合金中,微观组织的主要成分为Cu基体,Bi相和硬质粒子。 在本发明的烧结方法中,Bi相的流动被抑制到尽可能低的水平。 新颖的结构是将Bi相与硬质颗粒之间的接触保持在较低的比例。 根据本发明的用于燃料喷射泵的无铅轴承包含1至30质量%的Bi和0.1至10质量%的平均粒径为10至50μm的硬颗粒,余量为 Cu和不可避免的杂质。 主要组分相的性质被利用在高水平,使得滑动性能等于含Pb的Cu基烧结合金的滑动性能。