利用表面织构提高活塞环/缸套摩擦性能的实验研究  

Experimental Study for Improving the Tribological Performance of Piston Ring/Liner by Surface Texture

作　　者：袁明超[1] 钱双庆[1] 刘一静[1] 王晓雷[1] 

机构地区：[1]南京航空航天大学江苏省精密与微细制造技术重点实验室,南京210016

出　　处：《机械科学与技术》2009年第12期1630-1633,1638,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家863项目(2006AA04Z321);国家自然科学基金项目(50675101)资助

摘　　要：为研究表面织构对活塞环/缸套摩擦副摩擦学性能的影响,研制了一台往复式摩擦磨损试验机,试件分别为活塞环与缸套的片断。活塞环试件表面的曲率应当尽量与缸套试件表面的曲率相一致,笔者介绍了如何选取最符合条件的活塞环片断。通过电解加工技术,在活塞环试件表面加工出规则分布的微米级凹坑阵列。经过实验探究该凹坑阵列对活塞环/缸套摩擦性能的影响。实验结果表明:具有适当参数的表面织构能够有效减小摩擦,提高摩擦学性能。A reciprocating test rig was developed in order to investigate the impact of surface texture on the tribological performance of piston ring and cylinder liner tribopair. The samples are the piston ring and liner segments. The curvature of the piston ring should have the best conformity with the cylinder liner radius and this paper introduces how to choose the most qualified piston segment. The regularly distributing micro-pit array was produced on the surface of the piston ring segments through electrochemical machining technology. In addition, the impact of surface texture on this tribopair was studied through experiment. The result shows that surface texture with proper parameters can improve the tribological performance.

关 键 词：表面织构 活塞环 缸套片断 摩擦 曲率 

分 类 号：TH117[机械工程—机械设计及理论]