固体表面FAS膜转移对面接触油膜润滑影响的试验研究  

Experimental Study on the Influence of FAS Transfer Film on Film Lubrication at Conformal Contact

作　　者：李哲 郭峰 王玉荣 LI Zhe;GUO Feng;WANG Yurong(School of Mechanical&Automotive Engineering,Qingdao University of Technology,Shandong Qingdao 266520,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,山东青岛266520

出　　处：《摩擦学学报》2021年第6期870-879,共10页Tribology

基　　金：国家自然科学基金项目(51775286)资助。

摘　　要：利用滑块-盘面接触润滑油膜测量系统,在限量供油条件下,研究了滑块表面涂镀的疏油FAS(C_(13)H_(13)F_(17)O_(3)Si)膜对油膜润滑的影响.结果表明:部分FAS膜可以透过油膜自发地转移到玻璃盘上;由于FAS转移膜的反润湿作用,玻璃盘面上接触区出口的润滑油膜回流增强;润滑油在玻璃盘润滑轨道上由原来的双侧脊分布转变为离散液滴分布,并向润滑轨道中心区域聚集,增强了入口区供油,油膜厚度增加.With the test rig for lubricating films in slider-on-disc contact,the influence of oleophobic FAS(C_(13)H_(13)F_(17)O_(3)Si)film on oil film was studied under limited lubricant supply.The results showed that part of FAS film can be spontaneously transferred to the glass disc surface during lubrication.Due to dewetting of FAS transfer film,the oil replenishment at the outlet of the contact area was significantly enhanced.The oil distribution on the disc surface varied from side-ridge-type to discrete droplet-type,and aggregated to the central area of the lubrication track,which can enhance the oil supply at the inlet area,and therefore the oil film thickness was increased.

关 键 词：面接触 油膜润滑 光干涉 转移膜 限量供油 膜厚 

分 类 号：TH117.2[机械工程—机械设计及理论]