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我国汽车发动机的轴瓦,一向主要用巴氏合金来制造。即使在目前,巴氏合金轴瓦仍然要占到全部生产轴瓦的85%以上。五十年代后期,我国汽车上用的轴瓦曾普遍使用苏联牌号的铅合金COC6-6来制造。但是这种合金的强度太低,加上当时国内还没有带形浇铸设备,除解放牌主机用的是进口COC6-6连续浇铸钢带外,其余全都用离心浇铸法生产,因此合金层金相组织亦不理想。据调查,当时汽车轴瓦的使用寿命一般仅四至五万公里,少的不到两万公里。主要
China’s automotive engine bearings, has always been mainly used to manufacture Babbitt. Even now, Babbitt bearings still account for more than 85% of all production. In the late 1950s, the bushings used on our cars were commonly manufactured using the Soviet Union’s lead alloy COC6-6. However, the strength of this alloy is too low, coupled with the time there is no belt-shaped casting equipment, in addition to the host of the liberation of licensing is imported COC6-6 continuous casting strip, the rest are all produced by centrifugal casting method, the alloy layer metallography The organization is not ideal either. According to the survey, the service life of automobile bearings was generally only 40,000 to 50,000 kilometers and less than 20,000 kilometers. main