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汽油机缸体的激光淬火北内集团总公司（北京１０００２２）李泉华１前言４７５／４８２Ｑ汽油机是本公司研究并投产的轻型高速汽油机，用于１～１．５ｔ轻型车。在使用中发现缸孔早期磨损较为严重。经过对气缸—活塞环这对磨擦副多次试验，认为缸孔硬度低是造成早期磨损的...
Laser Quenching of Gasoline Engine Block North Inner Mongolia Group Corporation (Beijing 100022) Li Quanhua 1 Foreword The 475 / 482Q gasoline engine is a light high-speed gasoline engine researched and put into production by the Company for 1 ~ 1.5t light vehicles. In use found that the cylinder bore early wear more serious. After the cylinder - piston ring pair of friction pair test, that the low hardness of the cylinder bore is caused by early wear and tear ...