活塞除了选择合理的配缸间隙外。活塞裙部表面的微观轮廓对活塞的寿命,特别是抗咬合性有很大的影响。 有人认为活塞裙部微观轮廓(粗糙度)越光洁越好,其实不然,现通过有关试验和资料查明,裙部表面粗糙度只要达到一定范围就行了。裙部表面过于光洁,其 In addition to selecting a reasonable piston cylinder clearance. The microscopic profile of the piston skirt surface has a great influence on the life of the piston, especially on seizure resistance. Some people think that the piston skirt microscopic profile (roughness) the more clean the better, it is not true, through the relevant tests and information to identify, as long as the skirt surface roughness reaches a certain range on the line. Skirt surface is too bright and clean, its