| 引用本文: | 魏永辉,张永振,陈跃.锌黄铜-高速钢互配副的磁场干摩擦特性研究[J].材料科学与工艺,2013,21(5):26-32.DOI:10.11951/j.issn.1005-0299.20130505. |
| WEI Yong-hui,ZHANG Yong-zhen,CHEN Yue.Study on magnetic-field dry tribology characteristics of mutual pairs CuZn-W18Cr4V[J].Materials Science and Technology,2013,21(5):26-32.DOI:10.11951/j.issn.1005-0299.20130505. |
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| 摘要: |
| 为研究直流磁场对抗磁性和铁磁性材料干滑动摩擦学特性的影响,选取锌黄铜和高速钢为实验对象,采用互配副方式利用改进的MPV-1500型摩擦试验机研究了在载荷150 N和滑动速度0.4 m／s工况时锌黄铜和高速钢材料的磁场干摩擦学特性．结果表明:随着磁场的施加和增大,高速钢销和环的磨损率均有减小趋势,而锌黄铜销的磨损率有增大趋势,其环的磨损率却相反,互配副的摩擦系数均有降低趋势;磁场的施加和增大,有利于降低铁磁性材料的磨损,不利于降低抗磁性材料的磨损,含铁磁性材料的摩擦副的摩擦系数均有降低趋势;在抗磁性锌黄铜背面添置铁磁性材料,可克服磁场对锌黄铜干摩擦学特性的不利影响;装卡装置的磁性影响试验研究结果． |
| 关键词: 磁场 干滑动摩擦 磁吸力 电力机车 磁场干摩擦. |
| DOI：10.11951/j.issn.1005-0299.20130505 |
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| 基金项目:国家重点基础研究发展计划资助项目(2010CB635113);国家自然科学基金资助项目(50975078);国家重点联合基金(U1034002). |
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| Study on magnetic-field dry tribology characteristics of mutual pairs CuZn-W18Cr4V |
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WEI Yong-hui1,3, ZHANG Yong-zhen1,2, CHEN Yue2
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(1. School of Mechatronics Engineering, Northwestern Polytechnical University, Xi’an 710072, China; 2. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China; 3. School of Mechatronics Engineering, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China)
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| Abstract: |
| To study the influence of DC magnetic field on dry-sliding tribological characteristics of diamagnetic and ferromagnetic materials, brass CuZn and high-speed steel W18Cr4V have been selected as experimental subjects. By the improved MPV-1500 type tester, the characteristics of magnetic-field environment dry tribology of mutual pairs have been studied under the load of 150 N and sliding velocity of 0.4 m／s. The results show that, with the magnetic field Exerting and increasing, the wear rates of W18Cr4V pin and ring, and of CuZn ring reduce, only that of CuZn pin increases, and the friction coefficient of mutual friction pairs (CuZn／W18Cr4V, W18Cr4V／CuZn) decreases. The exerting and increasing of a magnetic field aggravates wear of diamagnetic materials and reduces wear of ferromagnetic materials. The antifriction property of friction-pairs containing ferromagnetic materials improves, and the addition of ferromagnetic materials on the back of diamagnetic materials can overcome the adverse effects of magnetic field on wear resistance of diamagnetic materials. |
| Key words: magnetic field dry-sliding friction magnetic force electric locomotive magnetic-field environment dry tribology |
