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在发动机的滑动轴承中,铜铅合金应用很广。但是,由于铝合金具有更高的抗腐蚀和抗疲劳性能,目前铜铅合金正被铝合金所取代。铝合金轴承有两种基本类型:一种是高锡铝合金,另一种是具有铅基镀层的铝合金。轿车发动机通常是装高锡铝合金轴承的。高锡铝合金轴承很易因轴表面粗糙和外界磨粒而受损,并在与球墨铸铁轴配用时,常易咬粘。因此必须特别注意减轻裁荷、减低轴颈的粗糙度
In the engine’s sliding bearings, copper and lead alloy is widely used. However, due to the higher corrosion resistance and fatigue resistance of aluminum alloys, copper-lead alloys are currently being replaced by aluminum alloys. There are two basic types of aluminum alloy bearings: one is a high-tin aluminum alloy and the other is an aluminum alloy with a lead-based plating. Car engine is usually installed high tin aluminum alloy bearings. High tin aluminum alloy bearings are easily damaged by the shaft surface roughness and outside the abrasive, and when used with ductile iron shaft, often easy to bite. Therefore, special attention must be paid to reduce the load and reduce the roughness of the journal