DLC薄膜微织构表面对干气密封环摩擦性能的影响  

Effects of Microtexturing Surface of DLC Film on Friction Performance of Dry Gas Seal Ring

作　　者：丁雪兴[1] 陈德林[1,2] 张伟政[1] 俞树荣[1] Ding Xuexing;Chen Delin;Zhang Weizheng;Yu Shurong(College of Petrochemical Industry,Lanzhou University of Technology,Lanzhou 730050,China;College of Mechanical and Automotive Engineering,Kaifeng University,Kaifeng 475000,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]开封大学机械与汽车工程学院,河南开封475000

出　　处：《甘肃科学学报》2021年第2期116-121,共6页Journal of Gansu Sciences

基　　金：国家自然科学基金资助项目(51165020)。

摘　　要：在干摩擦情况下,研究干气密封环类金钢石(DLC)薄膜织构表面的摩擦性能,并揭示织构表面对界面摩擦学行为的作用机制。应用HDM20型端面摩擦磨损试验机测试了摩擦系数随凹坑直径、面密度的变化情况;用ST400三维非接触式表面形貌仪进行磨损前后表面形貌测量分析。研究结果表明:微织构化的DLC薄膜端面具有很低摩擦系数;在工况一致的条件下摩擦系数随着凹坑直径的增加而减小,随着面密度的增加而增加,但是摩擦系数变化的振幅减小。研究成果为干气密封环端面的摩擦学研究和端面微织构的优化提供了一定依据。The frictional properties of DLC film texture surface of dry gas seal ring were investigated,and the mechanism of texture surface on interfacial tribological behavior was revealed under dry frictional condition.The variations of friction coefficient with pit diameter and areal density were measured by HDM20 end friction machine,the surface morphology of pre-test and post-test are analyzed by using three-dimensional non-contact surface topography instrument(ST400).The experiment results show that the seal face which exist micro-textured DLC film has low frication coefficient.Under the same work condition,the frication coefficient decreases with diameter increasing of micro-pit and increases with surface density increasing.However,the amplitude of friction coefficient decreases with the increase of surface density.The research results provide a certain basis for tribology research and microtexture optimization of the end face of dry gas seal ring.

关 键 词：干气密封 DLC薄膜 织构 摩擦系数 

分 类 号：TH117.1[机械工程—机械设计及理论]