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    Pb-Free Copper-Alloy Sliding Material
    11.
    发明申请
    Pb-Free Copper-Alloy Sliding Material 有权
    无铅铜合金滑动材料

    公开(公告)号：US20080095658A1

    公开(公告)日：2008-04-24

    申请号：US10585993

    申请日：2005-01-13

    申请人： Hiromi Yokota ,  Daisuke Yoshitome ,  Hiroaki Kobayashi ,  Hiroyuki Kawaguti

    发明人： Hiromi Yokota ,  Daisuke Yoshitome ,  Hiroaki Kobayashi ,  Hiroyuki Kawaguti

    IPC分类号： C22C9/00

    CPC分类号： C22C32/0073 ,  B22F2998/10 ,  B22F2999/00 ,  C22C9/00 ,  C22C32/0089 ,  F16C33/121 ,  C22C1/05 ,  B22F3/10 ,  B22F3/18 ,  B22F2201/013

    摘要： [PROBLEMS] To provide a Cu—Bi—hard substance base sintered alloy in which the respective properties of Bi and hard substance can be satisfactorily exerted. [MEANS FOR SOLVING PROBLEMS] There is provided a Ph free copper base sintered alloy, comprising 1 to 30% of Bi and 0.1 to 10% of hard substance particles of 10 to 50 μm average diameter, (1) wherein a Bi phase having an average particle diameter smaller than that of the hard substance particles is dispersed in a matrix of Cu, or wherein with respect to a Bi phase in contact with the hard substance particles, the ratio of presence of hard substance particles exhibiting a ratio of hard substance particle contact length to entire circumference of Bi phase of 50% or less is 70% or greater based on the total number of hard substance particles.

    摘要翻译： [问题]提供可以令人满意地施加Bi和硬质物质的各种性质的Cu-Bi硬质物质基烧结合金。 [解决问题的手段]提供了一种无Ph的铜基烧结合金，其包含1至30％的Bi和0.1至10％的平均直径为10至50μm的硬物质颗粒，（1）其中Bi相具有 平均粒径小于硬物质粒子的粒径分散在Cu基体中，或者相对于与硬质粒子接触的Bi相，存在硬物质粒子的比例为硬质粒子的比率 50％以下的Bi相的整周的接触长度相对于硬质粒子的总数为70％以上。

    Pb-free copper alloy sliding material
    13.
    发明授权
    Pb-free copper alloy sliding material 有权

    公开(公告)号：US10041148B2

    公开(公告)日：2018-08-07

    申请号：US13555639

    申请日：2012-07-23

    申请人： Hiromi Yokota ,  Daisuke Yoshitome

    发明人： Hiromi Yokota ,  Daisuke Yoshitome

    IPC分类号： C22C9/00 ,  C22C32/00 ,  C22C9/02

    摘要： When a Cu—Sn—Bi had—particle based sliding material is used for sliding, Cu of Cu matrix flows and covers up Bi phase. Seizure resistance lowers as time passes. A Pb-free sliding material preventing the reduction of seizure resistance is provided. (1) Composition: from 1 to 15% of Sn, from 1 to 15% of Bi, from 0.02 to 0.2% of P, and from 1 to 10% of hard particles having an average diameter of from 50 to 70 μm, with the balance being Cu and unavoidable impurities. (2) Structure: Bi phase and the hard particles are dispersed in the copper matrix, and all of said hard particles are bonded to the copper matrix.

    Pb-FREE COPPER ALLOY SLIDING MATERIAL AND PLAIN BEARINGS
    15.
    发明申请
    Pb-FREE COPPER ALLOY SLIDING MATERIAL AND PLAIN BEARINGS 审中-公开
    无铅铜合金滑动材料和普通轴承

    公开(公告)号：US20110129173A1

    公开(公告)日：2011-06-02

    申请号：US12600178

    申请日：2008-05-14

    申请人： Hiromi Yokota ,  Ryo Mukai ,  Shinichi Kato ,  Nahomi Hamaguchi

    发明人： Hiromi Yokota ,  Ryo Mukai ,  Shinichi Kato ,  Nahomi Hamaguchi

    IPC分类号： F16C33/12 ,  C22C9/02 ,  C22C9/00 ,  F16C33/14

    CPC分类号： B22F7/08 ,  B22F2998/00 ,  C22C1/0425 ,  C22C9/00 ,  C22C9/02 ,  C22C9/04 ,  C22C9/08 ,  F16C33/121 ,  F16C2204/12 ,  Y02T10/865 ,  B22F3/10

    摘要： [Task] In the provided Cu-based sliding material, the properties equivalent to those of a Pb-containing material is attained even free of Pb, and material has stable friction coefficient.[Solution Means] A Pb-free copper-alloy sliding material contains 1.0 to 15.0% of Sn, 0.5 to 15.0% of Bi and 0.05 to 5.0% of Ag, and Ag and Bi from an Ag—Bi eutectic. If necessary, at least one of 0.1 to 5.0% of Ni, 0.02 to 0.2% P, and 0.5 to 30.0% of Zn is contained. Further, if necessary, 1.0 to 10.0 mass % of at least one of a group consisting of Fe3P, Fe2P, FeB, NiB and AlN, having an average particle diameter of 1.5 to 70 μm is contained.

    摘要翻译： [任务]在所提供的Cu基滑动材料中，即使没有Pb也能够获得与含Pb材料相当的性能，材料具有稳定的摩擦系数。 [解决方案]无铅铜合金滑动材料含有1.0至15.0％的Sn，0.5至15.0％的Bi和0.05至5.0％的Ag，Ag和Bi由Ag-Bi共晶体组成。 如果需要，含有0.1〜5.0％的Ni，0.02〜0.2％的P和0.5〜30.0％的Zn中的至少一种。 此外，根据需要，含有1.0〜10.0质量％的平均粒径为1.5〜70μm的Fe 3 P，Fe 2 P，FeB，NiB，AlN等中的至少一种。

    Pb-free bearing used for fuel-injection pump
    16.
    发明申请
    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：US20060000527A1

    公开(公告)日：2006-01-05

    申请号：US11148186

    申请日：2005-06-09

    申请人： Hiromi Yokota ,  Daisuke Yoshitome ,  Hiroaki Hayakawa ,  Naruhiko Inayoshi ,  Youichi Murakami ,  Masashi Suzuki ,  Takahiro Nozu

    发明人： Hiromi Yokota ,  Daisuke Yoshitome ,  Hiroaki Hayakawa ,  Naruhiko Inayoshi ,  Youichi Murakami ,  Masashi Suzuki ,  Takahiro Nozu

    IPC分类号： C22C9/00

    CPC分类号： C22C32/00 ,  C22C32/0073 ,  C22C32/0089 ,  F16C33/121 ,  F16C33/14 ,  F16C2220/20 ,  F16C2220/44 ,  F16C2220/82

    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： 在添加了Fe 3 P 3等硬质粒子的Cu-Bi系烧结合金中，微观结构的主要构成成分是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50微米的硬颗粒，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。

    Pb-free bearing used for fuel-injection pump
    19.
    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

    申请人： Hiromi Yokota ,  Daisuke Yoshitome ,  Hiroaki Hayakawa ,  Naruhiko Inayoshi ,  Youichi Murakami ,  Masashi Suzuki ,  Takahiro Nozu

    发明人： Hiromi Yokota ,  Daisuke Yoshitome ,  Hiroaki Hayakawa ,  Naruhiko Inayoshi ,  Youichi Murakami ,  Masashi Suzuki ,  Takahiro Nozu

    IPC分类号： C22C9/00 ,  F16C32/12

    CPC分类号： C22C32/00 ,  C22C32/0073 ,  C22C32/0089 ,  F16C33/121 ,  F16C33/14 ,  F16C2220/20 ,  F16C2220/44 ,  F16C2220/82

    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。