对具有不同镀层的活塞环所作的快速台架试验结果表明:具有铬钼电镀层的试验型活塞环的耐磨性最好,与一般的镀铬活塞环相比,其耐磨性高33％;具有M_o+Al_2O_8+C等离子镀层的试验型活塞环也具有较好的磨料耐磨性;活塞环的磨损处所主要是在径向厚度和高度方向上,高度方向的磨损比较稳定和均匀; The results of rapid bench tests on piston rings with different coatings show that the test piston rings with chrome molybdenum plating have the best wear resistance and wear resistance is 33% higher than the common chrome plated piston rings. The experimental piston ring with M_o + Al_2O_8 + C plasma coating also has better abrasive wear resistance. The wear location of the piston ring is mainly in the radial thickness and height direction, the wear in the height direction is relatively stable and uniform.