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    • 10. 发明授权
    • Sliding bearing for light alloy housing
    • 滑动轴承轻合金外壳
    • US5432013A
    • 1995-07-11
    • US112263
    • 1993-08-27
    • Tadashi TanakaMasaaki SakamotoKoichi YamamotoYoshiaki SatoTohru Kato
    • Tadashi TanakaMasaaki SakamotoKoichi YamamotoYoshiaki SatoTohru Kato
    • B32B15/01F16C33/12
    • B32B15/017F16C33/12F16C2204/20F16C2204/22Y10S384/912Y10T428/12687Y10T428/12701Y10T428/1275
    • A sliding bearing has a back metal made of a copper alloy which has a high followability with respect to deformation of a light alloy housing, and with this construction, the sliding bearing is excellent in fretting resistance and migration resistance. The multi-layer sliding bearing for a light alloy housing includes an aluminum alloy bearing layer, and a back metal layer, the back metal layer being made of a copper alloy which has a thermal expansion coefficient of not less than 15.times.10.sup.-6 /.degree.C., a 0.2% yield strength of not less than 295 N/mm.sup.2 and a heat transfer coefficient of not less than 0.40 Cal/cm.cndot.sec.cndot..degree.C. A Pb-alloy overlay layer can be formed on the bearing layer. A bonding layer can be formed between the bearing layer and the back metal layer. A flash plating layer can be formed on an entire surface of the bearing. When a large interference is not obtained, or under sever conditions as when the temperatures of the bearing and the lubricating oil rise in a high-speed range of the internal combustion engine or as when the inertia force of the housing increases, an excellent bearing performance is achieved by the sliding bearing of the present invention.
    • 滑动轴承具有由铜合金制成的背金属,其对于轻合金壳体的变形具有高的跟随性,并且通过这种结构,滑动轴承具有优良的耐摩擦性和耐迁移性。 用于轻合金壳体的多层滑动轴承包括铝合金轴承层和背金属层,后金属层由铜合金制成,其热膨胀系数不小于15×10 -6 /℃ 0.2%屈服强度不低于295N / mm2,传热系数不低于0.40Cal / cm·sec。 可以在轴承层上形成Pb合金覆盖层。 可以在承载层和背面金属层之间形成结合层。 可以在轴承的整个表面上形成闪镀层。 当没有获得大干扰时,或者在严格的条件下,当轴承和润滑油的温度在内燃机的高速范围内升高时,或当壳体的惯性力增加时,优异的轴承性能 是通过本发明的滑动轴承实现的。