REVIEW ARTICLE
Study on Friction and Wear Properties of Pantograph Strip/Copper Contact Wire for High-Speed Train
Tao Ding*, 1, Wenjing Xuan2, Qiudong He1, Hao Wu1, Wei Xiong1
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 125
Last Page: 128
Publisher Id: TOMEJ-8-125
DOI: 10.2174/1874155X20140501005
Article History:
Received Date: 17/01/2014Revision Received Date: 25/03/2014
Acceptance Date: 26/03/2014
Electronic publication date: 18/4/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
A series of experiments on friction and wear properties of carbon strip rubbing against copper contact wire is performed on high-speed friction and wear tester with electric current. The results show that the friction coefficient is generally maintained between 0.24 and 0.37. In the absence of electric current, the coefficient of friction is higher than that in the presence of electric current. The wear rate of carbon strip materials is generally not more than 0.014g/km. In particular, the wear rate under the electric current of 240 A is 14 times more than that in the absence of electric current. By observing the scar of worn surface with optical microscope, it can be found that there are obvious slip scars and arc erosive pits. The dominated wear mechanisms are abrasive wear and arc erosion in electrical sliding frictional process.
