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In order to study pantograph and contact wire friction and wear properties , developed a high-performance sliding electrical contact wear test machine . It can achieve a uniform wear and the slide wire can be achieved within a certain current , load , speed, single and multi-factor control to achieve the contact wire with the slide friction coefficient , the number of reciprocating slide , the slide plate wear of the contact wire , etc. real-time online measurement and data storage , while the design of monitoring based on LabVIEW interface and data processing systems. Through orthogonal experiment experimental design to study the contact pressure , sliding speed , load current on the copper leaching rate of carbon skateboard wear degree , according to the analysis of variance of orthogonal factors derived currents greatest extent . Copper and tin to copper wire for the powder metallurgy skateboard friction , through the introduction of two relatively stable factor analysis of the experimental results , obtained skateboard friction and wear characteristics of carriers and contact pressure , sliding velocity and contact the variation between the current . In the sliding speed constant conditions , increasing the contact pressure , the friction coefficient increases at the same time, it improves the quality of the skateboard by flow friction and friction stability , so that the wear rate at first decreases and then increases \In constant contact pressure conditions, the friction coefficient of friction increases with decreasing sliding velocity , but its friction stability and the quality is deteriorating by the stream , wear rate increases with the sliding velocity decreases with the increase of contact current increases.
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