高温、水介质下GH05轴承材料摩擦磨损性能  

Friction and Wear Properties of GH05 Bearing Materials for High Temperature and Water Medium Lubrication

作　　者：牛荣军[1] 李鸿亮[2] 周勇勇 王玉飞[2] 邓四二[1] NIU Rongjun;LI Hongliang;ZHOU Yongyong;WANG Yufei;DENG Sier(Mechatronics Engineering School,Henan University of Science&Technology,Luoyang Henan 471003,China;Luoyang Bearing Research Institute Co.,Ltd.,Luoyang Henan)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]洛阳轴承研究所有限公司,河南洛阳471039

出　　处：《润滑与密封》2022年第10期30-35,共6页Lubrication Engineering

基　　金：国家自然科学基金项目(52005158,51905152)。

摘　　要：高温、水介质润滑环境下轴承用高温无磁合金GH05材料的性质会发生转变,影响其磨损系数,进而影响轴承磨损性能,导致轴承振动噪声加剧。利用高温摩擦磨损试验机开展高温、水介质润滑下高温无磁合金GH05材料的摩擦磨损试验,分析温度、载荷、润滑对材料摩擦磨损性能的影响,获取关键性能参数,为特殊工况和润滑条件下的轴承寿命评估提供试验数据。结果表明:对于轴承用材料高温无磁合金GH05,在高温300℃时的摩擦因数约为0.53,在水介质润滑条件下的摩擦因数约为0.35;相比于常温25℃下摩擦因数,高温300℃环境下摩擦因数波动范围小,稳定性更强;相比于干摩擦状态,水介质润滑条件下摩擦因数小,稳定性好;随着温度的升高,无磁合金材料GH05的耐磨性降低;相同试验载荷下,无磁合金材料GH05在高温300℃干摩擦条件下的磨损体积最大,在常温水介质润滑条件下磨损体积最小。高温无磁合金材料GH05的磨损系数在高温300℃干摩擦条件下取值范围为1.93×10^(-7)~3.02×10^(-7)mm^(2)/N。Under high temperature and water lubrication environment, the properties of high temperature non magnetic alloy GH05 material for bearings will change, which will affect the wear coefficient of material so as to affect the bearing wear performance, resulting in increased vibration and noise of bearings.The friction and wear tests of high temperature non-magnetic alloy GH05 under high temperature and water lubrication were carried out by using a high temperature friction and wear tester, and the effects of temperature, load and lubrication on the friction and wear properties of the material were analyzed.The wear coefficient of the material was obtained, which provided test data for bearing life evaluation under special working conditions and lubrication conditions.The results show that the friction coefficient of the bearing material GH05 is about 0.53 at 300 ℃ and about 0.35 with water lubricating medium.Compared with the friction coefficient at 25 ℃,the friction coefficient at 300 ℃ has a smaller fluctuation range and a stronger stability.Compared with the friction coefficient under dry friction state, the friction coefficient under water lubrication condition is smaller, and the stability of friction coefficient is better.With the increase of temperature, the wear resistance of the GH05 material decreases.At the same test load, the wear volume of GH05 material under dry friction at high temperature of 300 ℃ is the largest, and the smallest under water lubrication at room temperature.The wear coefficient of GH05 is from 1.93×10^(-7)~3.02×10^(-7)mm^(2)/N under dry friction at high temperature of 300 ℃.

关 键 词：球轴承 磨损系数 磨损性能 水介质润滑 摩擦因数 

分 类 号：TH133.33[机械工程—机械制造及自动化]