电弧侵蚀在受电弓-接触网系统碳带/铜接触线严重磨损中的作用

2011 IEEE 2nd International Conference on Computing, Control and Industrial Engineering Pub Date : 2011-09-01 DOI:10.1109/CCIENG.2011.6008123

T. Ding, G. Chen, S. Xiao, L. Xie, Q. Zeng

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引用次数: 1

摘要

在针盘式试验机上对铜接触线/碳带在不同电流条件下的摩擦磨损性能进行了试验研究。测试过程中记录了摩擦系数和磨损率，并观察了电弧放电现象。结果表明，由于电流的润滑作用，摩擦系数随电流强度的增大而减小。随着电流的增大，由于电弧放电烧蚀，磨损量明显增大。通过对碳带磨损表面的SEM显微照片和EDX光谱分析可知，有电流时以电弧侵蚀、氧化磨损和金属熔化为主，无电流时以磨粒磨损和粘着磨损为主。

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The role of the arc erosion in sever wear of carbon strip/copper contact wire in pantograph-catenry system

Experimental tests on friction and wear behavior of copper contact line/carbon strip were carried out under the conditions of different electric current on a pin-on-disc tester. During testing, the coefficient of friction and wear rate were recorded and arc discharge phenomenon was observed. The result indicated that friction coefficient decrease with increase of electric current intensity due to the lubrication role of electric current. As the electric current increased, wear volume distinctly increased due arc discharge ablation. By analysis of SEM micrograph and EDX spectrum on wear surface of carbon strip, it is known that arc erosion, oxidative wear and metal melting are dominant with electric current and abrasive wear and adhesive wear are dominant without electric current.

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2011 IEEE 2nd International Conference on Computing, Control and Industrial Engineering

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