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1.前言气缸套是汽车用发动机的主要易损件之一。目前,为适应汽车工业的需要,发动机正向高转速、大负荷方向发展。老的产品已不能适应今天产品改型的需要。其中,最突出的问题之一就是汽车用发动机的气缸套及相关零件活塞环的使用寿命太短,严重地影响了发动机的可靠性、耐久性与经济性,远远不能满足用户的需要。据调查整体式解放牌汽车缸体的大修里程为10万公里左右,比较好的可达20万公里,这
1. Introduction Cylinder liner is one of the main wearing parts of automotive engines. At present, in order to meet the needs of the automotive industry, the engine is moving towards high speed and heavy load. The old product has been unable to meet the needs of today’s product modification. Among them, one of the most prominent problems is that the service life of cylinder rings of automobile engines and piston rings of related parts is too short, which seriously affects the reliability, durability and economy of the engine, which far can not meet the needs of users. According to the investigation of the overall liberation of the car cylinder overhaul mileage of about 100,000 km, better up to 200,000 km, which