HFC型液压元件摩擦副摩擦学性能研究
Study on Tribological Properties of Friction Pair of HFC Hydraulic Components
寇保福 1郝锐杰 1李瑞清 1杨潇1
作者信息
- 1. 太原科技大学机械工程学院,山西太原 030000
- 折叠
摘要
为了研究液压元件在HFC型水-乙二醇液压液下的摩擦学性能,采用MFT-5000 摩擦磨损实验机考察不同载荷和滑动频率下,3 种液压元件常用材料(304 钢球、ZrO2和Si3 N4)和 304 不锈钢配副的摩擦磨损变化情况,并借助白光三维干涉仪对 304 钢的磨痕进行形貌分析.结果表明:在水-乙二醇液压液的润滑作用下,滑动频率对摩擦因数的影响比载荷更大,载荷对磨损体积的影响比滑动频率更大;在载荷为50 N、滑动频率为3Hz时,ZrO2和304 钢配副的摩擦因数和磨损体积均为最小,磨损机制以三体磨粒磨损为主.综合考虑,ZrO2/304 钢配副在不同载荷和滑动频率下摩擦因数和磨损体积更加稳定,更加适合作为HFC型液压元件的摩擦副材料.
Abstract
In order to explore the tribological properties of hydraulic components under HFC water-glycol hydraulic fluids,the MFT-5000 friction and wear testing machine was used to investigate the friction and wear changes of three hydraulic components com-monly used materials(304 steel ball,ZrO2 and Si3 N4)&304 stainless steel pairs under different loads and sliding frequencies.The wear marks of 304 steel were analyzed by white-light 3D interferometer.The results show that under the lubrication of water-glycol hy-draulic fluids,the sliding frequency has more influence on the friction coefficient than the load,and the load has more influence on the wear volume than the sliding frequency.When the load is 50 N and the sliding frequency is 3 Hz,the friction coefficient and wear vol-ume of ZrO2 and 304 steel pairs are the smallest,and the wear mechanism is mainly three-body abrasive wear.Considering comprehen-sively,the friction coefficient and wear volume of ZrO2/304 steel pair are more stable under different loads and sliding frequencies,and it is more suitable as a friction pair material for HFC hydraulic components.
关键词
水-乙二醇液压液/摩擦因数/磨损体积/磨损机制/液压元件Key words
water-glycol hydraulic fluids/friction coefficient/wear volume/wear mechanism/hydraulic components引用本文复制引用
基金项目
国家自然科学基金青年科学基金项目(51904195)
山西省重点研发计划项目(201803D421041)
山西省基础研究计划项目(20210302123209)
出版年
2024
NETL
NSTL
万方数据