编号：CDUT-2022-39

标题：The formation of the delamination wear of the pure carbon strip and its influence on the friction and wear properties of the pantograph and catenary system

入藏号：WOS:000540943900006

中国科学院文献情报中心期刊分区：工程技术1区/TOP（2020年升级版）

本校作者： 杨红娟；汪凯；刘艳华；付林；胡波

来源出版物： WEAR  卷: 454  文献号: 203343

出版年：2020

第一地址：成都理工大学

关键词：Delamination wear； Sliding friction； Arc erosion ；Carbon strip

代表图

摘要：Delamination wear is one of main wear mechanisms of carbon strip of the pantograph-catenary system in the high-speed sliding friction with electric current. In this work, a series of experiments were carried out to simulate the real operating conditions and explore the causes, forming and expanding mechanism of the delamination wear utilizing a ring-on-block wear tester, under high-speed of 350 km/h, strong electric current of 250A and heavy normal loads. Meanwhile, the arc discharge and interface temperature were investigated to clarify the friction and wear mechanisms. The experimental results indicate that the delamination wear of the carbon strip forms expands based on the severe arc erosion, which reveals that arc discharge is a main factor causes the delamination wear. Moreover, the SEM images and EDX analysis show that the plowing wear and copper transfer are the main wear mechanisms of the contact wire, especially, the copper transfer from the contact wire increases suddenly when the delamination wear occurs.

文章链接地址: https://www.sciencedirect.com/science/article/pii/S0043164820302210?via%3Dihub