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一些发动机用提高转速获得较高的性能,因此,其轴承将在由较高转速产生的较高温度下使用。当轴承在较高的工作温度中运转时,其减磨合金镀层出现不同于一般损坏形式的损坏,即靠近Ni栅层表面(附近)的低熔点化合物的熔融导致镀层脱落。为此,开发了一种不形成低熔点化合物的新镀层,该镀层含有Pb、Sn、Cu和In,添加一定量的Cu抑止Sn和In的扩散,可防止低熔点化合物的形成。
Some engines achieve higher performance with increased speed, so their bearings will be used at higher temperatures resulting from higher speeds. When the bearing is operated at a higher operating temperature, the wear-resistant alloy coating exhibits a different form of damage than normal damage, namely the melting of the low melting point compound near (near) the surface of the Ni gate causes the coating to peel off. For this reason, a new coating which does not form a low melting point compound containing Pb, Sn, Cu and In has been developed. The addition of a certain amount of Cu suppresses the diffusion of Sn and In to prevent the formation of a low melting point compound.