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汽车发动机的活塞是发动机中的主要配件之一,它与活塞环、活塞销等零件组成活塞组,与汽缸盖等共同组成燃烧室,承受燃气作用力并通过活塞销和连杆把动力传给曲轴,以完成内燃发动机的工作过程。燃烧室的瞬时温度可达2500K以上,散热条件又很差,所以与高温直接接触
The piston of a car engine is one of the main parts in the engine. It forms a piston group with the piston ring, the piston pin and other components, and forms the combustion chamber together with the cylinder head and the like to bear the gas force and transmit the power to the piston pin and the connecting rod Crankshaft to complete the internal combustion engine working process. The instantaneous temperature of the combustion chamber up to 2500K above, the cooling conditions are very poor, so in direct contact with high temperature