江西科学2016，Vol.34Issue(6)：829-833,5.DOI:10.13990/j.issn1001-3679.2016.06.022
菱形孔织构端面的润滑性能研究
Study on Lubrication Performance of End Faces with Diamond Macro-pores
摘要
Abstract
The UMT multifunctional friction and wear testing machine was applied,in order to exam-ine the size,shape,configuration and depth of the diamond macro-pores on the influence law of the friction coefficient and mechanism analysis. The results showed that:An end face with the diamond macro-pores texture of the proper structure and depth,can greatly improve the tribological properties of the lubricating friction pairs,and can effectively reduce the friction coefficient. Under the working conditions of the research,end faces with bi-direction,double-row inclined diamond macro-pores and when the depth is 10 μm,had better tribological properties. When the certain textured end faces en-tered the hydrodynamic lubrication stage,with the increase of the herscy characteristic number,fric-tion coefficient showed the phenomenon of fluctuations,instead of gradually increasing trend. Because fluid between the sliding surfaces could produce cavitation,then the gas-liquid border of cavitation region would produce interface slip,cavitation region increased,then slip length increased,further-more interface slip effect increased,the anti-friction property was better. When end surfaces intimate-ly touched under the mixed lubrication conditions,liquid medium was trapped in the diamond pits, then the liquid could be regarded as a lubricant of the secondary source,the liquid in the diamond pits was deliveried back to the seal surface by the relatively movement of the end faces,this would lead to make friction coefficient reduced.关键词
摩擦磨损/织构端面/Stribeck曲线/摩擦系数Key words
friction and wear/texture end face/Stribeck curve/friction coefficient分类
机械制造引用本文复制引用
程香平,康林萍,张友亮,付远,余宝玲,王德..菱形孔织构端面的润滑性能研究[J].江西科学,2016,34(6):829-833,5.基金项目
国家青年科学基金项目(51505203) （51505203）
江西省科技开发和产业化开发项目---火炬计划项目(20151BBE51065) （20151BBE51065）
2015年江西省科学院博士启动基金项目(2014-YYB-18和2014-XTPH1-18)。 （2014-YYB-18和2014-XTPH1-18）
