水润滑条件对UHMWPE复合材料的摩擦行为影响研究  

Friction behavior of UHMWPE composites under different water lubrication conditions

作　　者：杨东亚[1] 田松 任俊芳[3] 王宏刚[3] 高贵[3] 陈生圣[3] YANG Dong-ya;TIAN Song;REN Jun-fang;WANG Hong-gang;GAO Gui;CHEN Sheng-sheng(School of Mechanical and Electrical Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China;Xi’an Aerospace Propulsion Institute,Xi’an 710000,China;State Key Lab.of Solid Lubrication,Lanzhou Inst.of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730050 [2]西安航天动力研究所,陕西西安710100 [3]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000

出　　处：《兰州理工大学学报》2022年第2期49-54,共6页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(51675509);甘肃省高等学校创新能力提升项目(2019A-027)。

摘　　要：为研究不同水润滑条件对超高分子量聚乙烯/橡胶复合材料摩擦过程的影响,通过高温混炼和热压成型制备不同橡胶填充不同UHMWPE复合材料.利用Mrh-3型环块摩擦实验机,通过控制变量法定量研究不同组分复合材料的摩擦磨损性能,从而优选出最终UHMWPE复合材料.针对选定材料研究3种水润滑工况对摩擦过程的影响,同时利用SEM分析磨损表面,从微观层面探究摩擦机理.实验结果表明,水润滑条件对UHMWPE复合材料摩擦磨损性能指标影响显著,对应的磨损机理迥异,润滑条件的改善可使磨合期变短,稳定磨损期变长.从微观和定量方面综合评估了舰艇水润滑轴承材料在不同水润滑条件下的磨损状况,可为工况规划与实际应用提供理论指导.In order to study the effect of different water lubrication conditions on the friction process of UHMWPE/rubber composites,different UHMWPE composites with different rubber fillings were prepared by high temperature mixing and hot pressing.Using MRH-3 ring-block friction testing machine,through the control variable method,the friction and wear properties of different components of composites were quantitatively studied,so as to optimize the final UHMWPE composites.On this basis,the effect of three water lubrication conditions on the friction process of the optimal material was studied,and the wear surface was analyzed by SEM to explore the friction mechanism from the microscopic level.The results show that water lubrication conditions have a significant effect on the tribological properties of UHMWPE composites,and the corresponding wear mechanisms are different.The improvement of lubrication conditions can shorten the running-in period and lengthen the stable wear period.The wear conditions of water-lubricated bearing materials of naval vessels under different water-lubricated conditions are comprehensively evaluated from both microscopic and quantitative aspects,which can provide theoretical guidance for working condition planning and practical application.

关 键 词：水润滑 UHMWPE 磨损机理 定量化研究 

分 类 号：TH117.1[机械工程—机械设计及理论]