Hyper-eutectic aluminum-silicon based alloys for castings
    4.
    发明授权
    Hyper-eutectic aluminum-silicon based alloys for castings 失效
    用于铸件的超共晶铝硅基合金

    公开(公告)号:US4055417A

    公开(公告)日:1977-10-25

    申请号:US690658

    申请日:1976-05-27

    IPC分类号: C22C21/04

    CPC分类号: C22C21/04

    摘要: A hyper-eutectic aluminum-silicon based alloy for castings has an essential disadvantage in its poor strength. The present invention provides an alloy comprised of 16-25% Si, 3.0-5.5% Cu, 0.2-0.8% Mg, 0.3-0.8 Mn, not more than 0.25% Ti and not more than 0.3% Fe to remove the above mentioned disadvantage. Another provided alloy containing 0.5-1.5% Zn in addition to the above mentioned ingredients not only removes the above mentioned disadvantage but also improves machinability. A still further provided alloy containing 0.3-2.0% Pb in addition to the first mentioned ingredients not only removes the above essential disadvantage but also improves machinability as well as additionally enhancing the wear resistance. In the disclosed alloys the content of iron as one of the impurities is restricted to a low level, because iron destroys the effect of the invention to remove said disadvantage.

    摘要翻译: 用于铸件的超共晶铝硅基合金在其强度较差方面具有重要的缺点。 本发明提供一种由16-25%Si,3.0-5.5%Cu,0.2-0.8%Mg,0.3-0.8Mn,不大于0.25%Ti和不超过0.3%Fe组成的合金,以去除上述缺点 。 除了上述成分之外,含有0.5-1.5%Zn的另一种提供的合金不仅消除了上述缺点,而且提高了机械加工性。 除了上述成分之外,还含有0.3〜2.0重量%的Pb的合金不仅消除了上述基本缺点,而且提高了切削性,并且还提高了耐磨性。 在所公开的合金中,作为杂质之一的铁的含量被限制在低水平,因为铁破坏了本发明的效果以消除所述缺点。

    Wear resistant alloy
    5.
    发明授权
    Wear resistant alloy 失效
    耐磨合金

    公开(公告)号:US4292074A

    公开(公告)日:1981-09-29

    申请号:US71578

    申请日:1979-08-31

    CPC分类号: C22C38/08

    摘要: A wear resistant alloy having the composition of 30%-60% Ni, 6%-10% Si, 0.5%-3% B, 0.5%-2% C, 2%-8% carbide and boride forming element selected from Cr, Mo, and W, and 30%-60% Fe, wherein Si and B form silicides and borides, respectively, of Ni and Fe of the desirable density to provide a good balance between hardness, strength, fusibility, grindability, brittleness, etc. of the material, and to maintain its melting point as low as possible and to allow for good self-fluxing characteristic and moldability.

    摘要翻译: 具有30%-60%Ni,6%-10%Si,0.5%-3%B,0.5%-2%C,2%-8%碳化物和硼化物形成元素组成的耐磨合金,其选自Cr, Mo和W,以及30%-60%的Fe,其中Si和B分别形成具有所需密度的Ni和Fe的硅化物和硼化物,以提供硬度,强度,熔融性,可磨性,脆性等之间的良好平衡。 的材料,并保持其熔点尽可能低,并且允许良好的自熔性能和成型性。

    Method for surface treatment of electrode in distributor of internal
combustion engine for suppressing noise
    7.
    发明授权
    Method for surface treatment of electrode in distributor of internal combustion engine for suppressing noise 失效
    用于抑制噪声的内燃机分配器中电极的表面处理方法

    公开(公告)号:US3992230A

    公开(公告)日:1976-11-16

    申请号:US588051

    申请日:1975-06-18

    CPC分类号: F02P7/025

    摘要: Using a plasma arc coating process or a thermospraying process or a detonation process an electrode of a rotor of a distributor for the ignition system of an internal combustion engine was surface treated to provide the electrode with a surface layer of an electrically high resistive material, e.g. CuO. A distributor having the treated rotor included therein exhibited significantly suppressed noise. Instead of or in addition to the rotor, each of the stationary terminals of the distributor may be so treated.

    摘要翻译: 使用等离子体电弧涂覆法或热喷涂法或爆轰法,对内燃机的点火系统的分配器的转子的电极进行表面处理,为电极提供电阻较高的材料的表面层。 CuO。 其中包括处理过的转子的分配器显示出显着抑制的噪声。 除了转子之外,分配器的每个固定端子可以被如此处理。