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    • 9. 发明授权
    • Die cast heat treated aluminum silicon based alloys and method for
producing the same
    • 压铸热处理铝硅基合金及其制造方法
    • US4934442A
    • 1990-06-19
    • US355892
    • 1989-05-24
    • Kenichiro FutamuraKeiichiro Otsu
    • Kenichiro FutamuraKeiichiro Otsu
    • C22C21/00C22C21/02C22F1/043F04B27/10
    • C22C21/02C22F1/043F04B27/1054F05C2253/12
    • A die cast, heat treated shaped aluminum silicon alloy article consisting essentially of, based on an alloy weight, from 13 to 25 wt % silicon, from 2 to 6 wt % copper, up to 1 wt % magnesium, balance aluminum, said heat treated alloy being formed by the process comprising: subjecting said alloy while in molten condition to a primary pressure die casting at a casting pressure of from about 450 to about 500 kg/cm.sup.2 to form a primary pressure die cast product; removing the primary casting pressure from said primary pressure die cast product; prior to the time said aluminum silicon alloy completely solidifies, subjecting said primary pressure die cast alloy to a secondary pressure die casting so as to reduce the volume thereof from about 1.5% to about 3%; heating the thus treated product to a temperature of from about 460.degree. C. to about 520.degree. C. for a period of time of from about 2 to about 10 hours; and rapidly quenching said product to produce said article. The process used to produce the article as also claimed as is the combination of the article in sliding contact with another material having a hardness HV of at least 50.
    • 一种压铸,热处理形状的铝硅合金制品,其基本上由基于合金重量的13至25重量%的硅,2至6重量%的铜,至多1重量%的镁,余量的铝组成,所述热处理 合金通过以下方法形成:包括:在熔融条件下将所述合金以约450至约500kg / cm2的铸造压力进行初级压铸,形成初级压铸模产品; 从所述初级压铸模产品中除去初级铸造压力; 在所述铝硅合金完全固化之前,将所述一次压力压铸合金进行二次压铸,以将其体积从约1.5%降低至约3%; 将如此处理的产物加热至约460℃至约520℃的温度约2至约10小时的时间; 并快速淬灭所述产品以产生所述制品。 用于生产制品的方法也是要求保护的物品与硬度HV至少为50的另一种材料滑动接触的组合。
    • 10. 发明授权
    • Aluminum-base bearing alloy and composite
    • 铝基轴承合金和复合材料
    • US4153756A
    • 1979-05-08
    • US867316
    • 1978-01-06
    • Keiichi IwahanaYoshimi MathudaKenichiro Futamura
    • Keiichi IwahanaYoshimi MathudaKenichiro Futamura
    • C22C21/00F16C33/12B32B15/04
    • C22C21/003F16C33/121Y10T428/12757
    • An aluminum-base bearing alloy and a bearing material which is made by applying the bearing alloy to a backing steel by pressure welding. The aluminum-base bearing alloy is characterized in that the lowering of the hardness thereof under high temperature conditions is quite small so that the fatigue strength of the bearing alloy is quite high. The aluminum base bearing alloy comprises 10-30 wt.% of tin, 0.1-1.0 wt.% of chromium or zirconium, and the remainder of aluminum. The bearing alloy of the invention can further contain 0.2-2.0 wt.% of copper or both 0.2-2.0 wt.% of copper and 0.1-0.5 wt.% of beryllium so as to improve its properties. Especially, the aluminum-base bearing alloy containing chromium has the advantage that the tin particles contained in the alloy are prevented from becoming coarse in an annealing step or at elevated temperatures corresponding to the annealing condition. Accordingly, the lowering of the hardness under high temperature conditions can effectively be prevented, and as the result, the fatigue strength can effectively be maintained.
    • 铝合金轴承合金和轴承材料,其通过压力焊将轴承合金施加到背衬钢上而制成。 铝基轴承合金的特征在于,在高温条件下其硬度的降低非常小,使得轴承合金的疲劳强度相当高。 铝基轴承合金包含10-30重量%的锡,0.1-1.0重量%的铬或锆,其余的铝。 本发明的轴承合金还可以含有0.2-2.0重量%的铜或0.2-2.0重量%的铜和0.1-0.5重量%的铍,以提高其性能。 特别地,含铬的铝基轴承合金具有如下优点:在退火步骤或对应于退火条件的高温下,防止合金中含有的锡粒子变粗。 因此,可以有效地防止在高温条件下的硬度的降低,结果可以有效地维持疲劳强度。