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    Bearing made of abrasion-resistant aluminum alloy
    7.
    发明授权
    Bearing made of abrasion-resistant aluminum alloy 失效
    轴承由耐磨铝合金制成

    公开(公告)号：US5912073A

    公开(公告)日：1999-06-15

    申请号：US678960

    申请日：1996-07-12

    申请人： Masahiko Shioda ,  Hiromi Taguchi ,  Shingo Hirotsu ,  Yoshiteru Yasuda ,  Kenji Tsushima

    发明人： Masahiko Shioda ,  Hiromi Taguchi ,  Shingo Hirotsu ,  Yoshiteru Yasuda ,  Kenji Tsushima

    IPC分类号： C22C21/02 ,  F16C33/12 ,  B32B5/16

    CPC分类号： F16C33/12 ,  F16C2204/20 ,  Y10S384/912 ,  Y10S384/913 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/259 ,  Y10T428/31678

    摘要： The invention relates to a bearing for supporting a moving member having a surface of a first arithmetical mean roughness. This bearing is made of an abrasion-resistant aluminum alloy containing 14.0-17.5 wt% of Si, 2.0-5.0 wt% of Cu, 0.1-1.0 wt% of Mg, 0.3-0.8 wt% of Mn, 0.1-0.3 wt% of Cr, 0.05-0.20 wt% of Ti, 0.003-0.05 wt% of P, not greater than 1.5 wt% of Fe, less than 0.005 wt% of Ca, and aluminum as a remainder. The aluminum alloy contains silicon primary crystals, and first and second intermetallic compounds. Each of the silicon primary crystals and these intermetallic compounds has an average particle diameter from 8 to 30 .mu.m. The silicon primary crystals and the first and second intermetallic compounds respectively have first, second and third fractions each ranging from 5 to 40 .mu.m in particle diameter. The total area of the first, second and third fractions on a two-dimensional section of the alloy is from 5 to 10% by area, based on the total area of the section. The bearing has a surface having a second arithmetical mean roughness which is greater than the first one and is from 0.3 to 3.0 .mu.m. The bearing is superior in abrasion resistance, seizure resistance and running-in characteristic, and is capable of reducing abrasion even if used under a condition of inferior lubrication.

    摘要翻译： 本发明涉及一种用于支撑具有第一算术平均粗糙度的表面的移动构件的轴承。 该轴承由含有14.0-17.5重量％的Si，2.0-5.0重量％的Cu，0.1-1.0重量％的Mg，0.3-0.8重量％的Mn，0.1-0.3重量％的Cu， Cr，0.05-0.20重量％的Ti，0.003-0.05重量％的P，不大于1.5重量％的Fe，小于0.005重量％的Ca和作为余量的铝。 该铝合金包含硅一次晶体和第一和第二金属间化合物。 硅原子和这些金属间化合物的平均粒径为8〜30μm。 硅一次晶体和第一和第二金属间化合物分别具有粒径为5至40μm的第一，第二和第三部分。 合金的二维截面上的第一，第二和第三部分的总面积为面积的5至10％，基于截面的总面积。 轴承的表面具有大于第一算术平均粗糙度的第二算术平均粗糙度，并且为0.3至3.0μm。 该轴承的耐磨损性，耐咬合性和延伸性优异，即使在润滑性差的条件下使用也能够降低磨损。

    Wear-resistant cast aluminum alloy process of producing the same
    9.
    发明授权
    Wear-resistant cast aluminum alloy process of producing the same 失效
    耐磨铸铝合金生产过程相同

    公开(公告)号：US5762728A

    公开(公告)日：1998-06-09

    申请号：US768666

    申请日：1996-12-18

    申请人： Yukio Kuramasu ,  Akio Hashimoto ,  Yoji Namekawa ,  Sanji Kitaoka ,  Koji Watanabe ,  Kenji Tsushima ,  Mamoru Sayashi

    发明人： Yukio Kuramasu ,  Akio Hashimoto ,  Yoji Namekawa ,  Sanji Kitaoka ,  Koji Watanabe ,  Kenji Tsushima ,  Mamoru Sayashi

    IPC分类号： C22F1/043 ,  B22D21/00 ,  B22D21/04 ,  B22D27/04 ,  C22C21/02 ,  C22C21/04 ,  C22F1/00

    CPC分类号： C22C21/02 ,  B22D21/007 ,  B22D27/04 ,  C22C21/04 ,  F02F2007/009 ,  F05C2201/021

    摘要： To provide a wear resistance comparable with that of the conventional A390 series aluminum alloys, a reduced attacking to a sliding counterpart, and an improved machinability, a wear-resistant cast aluminum alloy comprises: a chemical composition consisting, in weight percentage of: 14.0-16.0 Si, 2.0-5.0 Cu, 0.1-1.0 Mg, 0.3-0.8 Mn, 0.1-0.3 Cr, 0.01-0.20 Ti, 0.003-0.02 P, 1. 5 or less Fe, and the balance of Al and unavoidable impurities in which the Ca content is limited to not more than 0.005; and a microstructure in which a primary Si crystal and Al-Si-Fe-MnCr-based intermetallic compounds are dispersed in the form of a crystallized particle having a diameter of from 5 to 30 gm. A process of producing a wear-resistant cast aluminum alloy includes casting a melt of the alloy composition at a cooling rate of from 50.degree. to 200.degree. C./sec.

    摘要翻译： 为了提供与常规A390系列铝合金相当的耐磨性，减少对滑动对应物的攻击和改进的机械加工性，耐磨铸铝合金包括：以重量百分数：14.0- 16.0Si，2.0-5.0Cu，0.1-1.0Mg，0.3-0.8Mn，0.1-0.3Cr，0.01-0.20Ti，0.003-0.02P，1.5或更低的Fe，余量为Al和不可避免的杂质，其中 Ca含量限制在0.005以下; 以及其中初级Si晶体和Al-Si-Fe-MnCr基金属间化合物以直径为5至30gm的结晶颗粒的形式分散的微结构。 制造耐磨铸铝合金的方法包括以50℃至200℃/秒的冷却速度浇铸合金组合物的熔体。