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我所研制成功的等离子体喷涂钼基合金涂层活塞环(单体铸造、靠模加工的高点环),经装机运用,结果表明,这种活塞环具有良好的耐磨性能,使用可靠,寿命能达到机车走行50万公里。本文主要介绍喷涂层的性能与使用效果。一、涂层的性能活塞环表面涂层的作用,主要是提高活塞环的耐磨性能,延长使用寿命。涂覆层的材料经筛选、试验,定型为钼基合金涂层。按涂层中合金比例,分为M75—25和M75—35两种,其成份(％)列于表
I successfully developed plasma spraying Mo-based alloy coating piston ring (single casting, high-pressure ring by die processing), the installed use, the results show that this piston ring has good wear resistance, the use of reliable, Life expectancy can reach 500,000 km locomotive. This article describes the performance and use of spray coating. First, the coating performance Piston ring surface coating role, mainly to improve the wear resistance of piston rings, to extend the service life. The material of the coating is screened, tested and shaped as a molybdenum-based alloy coating. By coating the alloy ratio, divided into M75-25 and M75-35 two of its composition (%) are listed in the table