Abstract：At different currents, temperature rising of sliding contact surface is caused by the combination of frictional heating, Joule heating and arc heating. At the same time, the sliding contact surface’s temperature rising changes the contact materials’ composition, and conversely affects the sliding contact characteristics. In this article, the Cu-based sintered alloy strip and Cu impregnation carbon strip are two experimental materials, and rub against the Cu-tin wire to analyze the wear characteristics with currents. By the comparative analysis, this article reaches conclusions that the contact resistance, the temperature and the wear rate of two slide plates rise with current. The contact resistance change rate of the Cu impregnation carbon strip are lower, but the contact temperature is higher; because of the existence of lubricant and arc-resistivity of carbon, the Cu impregnation carbon strip possesses lower wear rate and good wear characteristics with current.
郭凤仪, 马同立, 陈忠华, 赵汝彬, 姜国强, 任志玲. 不同载流条件下滑动电接触特性[J]. 电工技术学报, 2009, 24(12): 18-23.
Guo Fengyi, Ma Tongli, Chen Zhonghua, Zhao Rubin, Jiang Guoqiang, Ren Zhiling. Characteristics of the Sliding Electric Contact Under Different Currents. Transactions of China Electrotechnical Society, 2009, 24(12): 18-23.
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2009, Vol. 24 
