摘要
为改善锂基润滑脂摩擦学性能,制备不同添加量纳米CuO改性的锂基润滑脂。采用3H-2000PS2比表面及微孔分析仪对纳米CuO粒子进行表征,采用四球摩擦磨损试验机分析纳米CuO添加量对锂基润滑脂摩擦学性能的影响,采用扫描电镜(SEM)和三维形貌分析仪分析试验后钢球磨痕形貌。结果表明:纳米CuO质量分数为0.60%时锂基润滑脂具有最佳的抗磨减摩效果,摩擦因数和磨斑直径较基础脂分别降低24%和12%;一定添加量下,纳米CuO对磨损表面具有修复作用,含质量分数0.60%纳米氧化铜的润滑脂润滑时,磨损表面具有较低的表面粗糙度和较少的犁沟,表现出最佳的抗磨性能。
In order to improve the tribological properties of lithium-based grease,lithium greases modified by different content of nano-CuO were prepared.The nano-CuO particles were characterized by 3H-2000PS2 specific surface and micropore analyzer,the effect of nano-CuO addition on the tribological properties of lithium-base grease was analyzed by four ball friction and wear tester,and the wear scar morphology of steel ball was analyzed by SEM and 3D morphology analyzer.The results show that when the weight fraction of nano-CuO is 0.60%,the lithium-base grease has the best anti-wear and friction reducing effect,and the friction coefficient and wear scar diameter are 24%and 12%lower than the base grease,respectively.Under a certain addition,nano CuO can repair the worn surface.When lubricated by the grease containing 0.60%weight fraction of nano copper oxide,the worn surface has low surface roughness and less furrows,showing the best anti-wear performance.
作者
郑博
王涛
贾其苏
贾现召
何强
ZHENG Bo;WANG Tao;JIA Qisu;JIA Xianzhao;HE Qiang(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China;Key Laboratory of Key Functional Parts of Machine Tool,Anyang Institute of Technology,Anyang Henan 455000,China;CITIC Heavy Industries Co.,Ltd.,Luoyang Henan 471003,China)
出处
《润滑与密封》
CAS
CSCD
北大核心
2020年第4期51-55,68,共6页
Lubrication Engineering
基金
国家自然科学基金青年基金项目(51105002)
河南省科技重点攻关项目(182300410169)
河南省自然科学基金项目(182102210201)
河南省创新人才计划项目(19HASTIT023).
关键词
纳米氧化铜
添加剂
润滑脂
摩擦学性能
抗磨减摩性能
nano-CuO
additives
lubricating grease
tribological properties
anti-wear and friction reducing performance
