Study the influence of power-current impact with different conditions on the current-carrying wear property of carbon brush/friction disc contact

被引：15

作者：

Liu, Xin-long ^{[1
]}

Gao, Ming-sheng ^{[1
]}

Hu, Ming-jie ^{[2
]}

Cao, Yong ^{[3
]}

Guan, Xin ^{[1
]}

Zhang, Wu-lue ^{[1
]}

Zhang, Song ^{[1
]}

Xiao, Qian ^{[1
]}

Zheng, Yi-ting ^{[1
]}

Chen, Dao-yun ^{[1
]}

Yang, Wen-bing ^{[1
]}

机构：

[1] East China Jiaotong Univ, Sch Mechatron & Vehicle Engn, Nanchang 330013, Peoples R China

[2] CRRC ZHUZHOU LOCOMOTIV CO LTD, Zhuzhou 412001, Peoples R China

[3] Suzhou Doneka New Mat Corp Ltd, Suzhou 215416, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2023年 / 189卷

基金：

中国国家自然科学基金;

关键词：

Carbon brush; Power current; Current impact; Wear mechanism; FRICTION; COPPER; BRUSH; GRAPHITE; SYSTEM; STRIP;

D O I：

10.1016/j.triboint.2023.108985

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study aims to investigate the impact of power current on the friction performance of carbon brushes/disc contact. A unique current impact test was conducted to analyze the impact of different current impact conditions, including impact current, duration, and frequency. The study identified rapid changes in the friction coefficient, electrical contact resistance, and interface temperature rise as the results of instantaneous current impact. The range analysis method was utilized to determine the primary and secondary order of current impact conditions in evaluating the wear properties of the carbon brushes/disc contact. Prolonged current impact duration led to adhesive wear of the interface, while a higher current density worsened the breakdown and melting effects of the oxide membrane between the contact surfaces.

引用

页数：12

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