Effect of arc discharge on wear rate of Cu-impregnated carbon strip in unlubricated sliding against Cu trolley under electric current

被引：200

作者：

Kubo, S

Kato, K

机构：

[1] Railway Tech Res Inst, Kokubunji, Tokyo 185, Japan

[2] Tohoku Univ, Dept Engn Mech, Lab Tribol, Sendai, Miyagi 98077, Japan

来源：

WEAR | 1998年 / 216卷 / 02期

关键词：

wear; carbon material; copper; contact strip; trolley wire; electric railways;

D O I：

10.1016/S0043-1648(97)00184-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The wear of contact strip on the pantograph of electric railway vehicle is mainly governed by are discharge occurring simultaneously with contact break between strip and trolley wire. Sliding wear tests were carried out under electric current for the combination of Cu-impregnated baked carbon strip and Cu trolley at a sliding speed of 100 km/h. Voltage drop and current were measured at a frequency of 48 kHz and electric power, total time duration and accumulated energy of discharge were evaluated for each test strip. Plot of wear rare of strip against are discharge energy shows a proportional relationship between them. (C) 1998 Elsevier Science S,A. All rights reserved.

引用

页码：172 / 178

页数：7

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