一、前言活塞环的寿命一般是根据气体泄漏量的增减来决定的,而气体泄漏量则是由活塞环磨损而产生的。在一定条件下,塑料活塞环的体积磨损量 W 是与滑动面压 P 和所经过路程 S 的乘积成正比。即W=K PS=K P Vt 式中:K是磨损因数(由塑料材质,对磨件材质,气体介质,表面光洁度等决定的常数)多V是活塞线速度;t是摩擦时间。从上式可知,活塞环的磨损量在一定时间内,不但跟K有关,也跟PV有关。在给定的用途、压缩机型号及塑料活塞环材质条件下 First, the preamble Piston ring life is generally based on changes in gas leakage to determine the increase, while the gas leakage is generated by the piston ring wear and tear. Under certain conditions, the volume W of the plastic piston ring is proportional to the product of the sliding surface pressure P and the distance S traveled. Ie W = K PS = K P Vt where K is the wear factor (a constant determined by the material of the plastic, the material of the part, the gas medium, the surface finish, etc.) V is the linear velocity of the piston; t is the friction time. We can see from the above equation, the wear of the piston ring in a certain period of time, not only with the K, but also with the PV. For a given application, compressor model and plastic piston ring material conditions