有无电流条件下温度对碳/铜摩擦副摩擦磨损性能的影响

中国机械工程 ›› 2010, Vol. 21 ›› Issue (7): 843-847.

有无电流条件下温度对碳/铜摩擦副摩擦磨损性能的影响

丁涛;王鑫;陈光雄;朱旻昊

西南交通大学牵引动力国家重点实验室,成都,610031

出版日期:2010-04-10 发布日期:2010-04-16
基金资助:
国家重点基础研究计划资助项目(2007CB714703)；国家科技支撑计划资助项目(2009BAG12A01-D06-1)；西南交通大学博士生创新基金资助项目(A0320502050902)
National Program on Key Basic Research Project (973 Program)（No. 2007CB714703）;
The National Key Technology R&D Program（No. 2009BAG12A01-D06-1）

Effect of Temperature on Friction and Wear Behaviors of Carbon/Copper with and without Electric Current

Ding Tao;Wang Xin;Chen Guangxiong;Zhu Minhao

Traction Power State Key Laboratory of Southwest Jiaotong University,Chengdu,610031

Online:2010-04-10 Published:2010-04-16
Supported by:

National Program on Key Basic Research Project (973 Program)（No. 2007CB714703）;
The National Key Technology R&D Program（No. 2009BAG12A01-D06-1）

摘要/Abstract

摘要：

通过销-盘摩擦磨损试验,研究了碳/铜摩擦副在有无电流条件下的摩擦学性能。结果表明：试验过程中摩擦副温度不断地升高,且有电流时摩擦副温度比无电流时高,滑板材料的磨损量随着温度的升高而增大;当无电流通过时,摩擦因数随温度的升高先增大后减小,当有电流通过时,摩擦因数随温度的升高而减小。观察碳滑板磨损前后表面形貌发现：磨损表面随摩擦副温度的升高变得越来越光滑;当无电流通过时,磨粒磨损和黏着磨损是主要磨损类型,当有电流通过时,磨损类型以氧化磨损和电弧烧蚀为主。碳滑板材料磨损表面EDS分析发现,元素转移和氧化现象在磨损过程中时有发生。

关键词:

电磨损, 摩擦副温度, 摩擦因数, 磨损量

Abstract:

Through a series of experimental tests on a pin-on-disc tester, the tribology behavior of carbon/copper pair with and without electric current was verified. The results indicate that the temperature of frictional couple rises continuously in the process of friction and wear, and the wear valume of sliding strip increases with increasing of temperature. And the temperature of the frictional couple with electric current is higher than that without electric current. Without electric current, the friction coefficient firstly increases and then decreases with increasing of the temperature. With electric current, the friction coefficient decreases gradually with increasing of the temperature. Through observing the surface topography of the carbon sliding strip before and after wear, it is found that the wear surface becomes smoother and smoother with increasing of the temperature. Abrasive and adhesive wear dominate during no electric current. Oxidation wear and arc erosion dominate under electric current. By the EDS(energy dispersive spectrometer) analysis on worn carbon sliding strip, it can be found that element transfer and oxidation occur irregularly in the process of the friction and wear.

Key words: electrical wear, temperature of frictional pair, friction coefficient, wear volume

中图分类号:

TH117

丁涛, 王鑫, 陈光雄, 朱旻昊.

有无电流条件下温度对碳/铜摩擦副摩擦磨损性能的影响

[J]. 中国机械工程, 2010, 21(7): 843-847.

DING Chao, WANG Xin, CHEN Guang-Xiong, SHU Min-Hao.

Effect of Temperature on Friction and Wear Behaviors of Carbon/Copper with and without Electric Current

[J]. China Mechanical Engineering, 2010, 21(7): 843-847.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://www.cmemo.org.cn/CN/

http://www.cmemo.org.cn/CN/Y2010/V21/I7/843

参考文献

[1]Azevedo C R F, Sinatora A. Failure Analysis of a Railway Copper Contact Strip[J]. Engineering Failure Analysis, 2004, 11(6) :829-841.
[2]He D H, Manory R. A Novel Electrical Contact Material with Improved Self--lubrication for Railway Current Collectors[J]. Wear, 2001,249(7): 626-636.
[3]上官宝[1,2],张永振[2],邢建东[1],孙乐民[2],丘明[2],牛永平[2],侯明[2].电流密度对铬青铜/黄铜载流配副表面温度和摩擦学特性的影响[J].中国有色金属学报,2008,18(7):1237-1241.
[4]Hu Zhongliang, Chen Zhenhua, Xia Jintong, et al. Effect of PV Factor on the Wear of Carbon Brushes for Mieromotors[J]. Wear, 2008, 265 (3/4):336- 340.
[5]Casstevens J M, Rylander H G. Friction and Wear Properties of Two Types of Copper--graphite Brushes under Severe Sliding Conditions[J]. Wear, 1978, 50(2):371-381.
[6]虞澜.金—稀土合金电刷丝的磨损机理研究[J].摩擦学学报,2002,22(4):282-285.
[7]贾步超.载流条件下的1Cr18Ni9Ti/浸金属碳摩擦磨损性能研究[D].成都:西南交通大学,2007.
[8]Bouchoucha A, Chekroud S, Paulaier D. Influence of the Electrical Sliding Speed on Friction and Wear Processes in an Electrical Contact Copper-stainless [J]. Applied Surface Science, 2004, 223(4):330-342.
[9]Senouci A, Frene J, Zaidi H. Wear Mechanism in Graphite--copper Electrical Sliding Contact[J]. Wear, 1999, 225(2):949-953.
[10]Lu C T, Bryant M D. Thermoelastic Evolution of Contact Area and Mound Temperatures in Carbon Graphite Electrical Contact[J]. Wear, 1994, 174 (1/2): 137-146.
[11]Bouchoucha A, Kadiri E K, Robert F,et al. Metals Transfer and Oxidation of Copper- steel Surfaces in Electrical Sliding Contact [J]. Surface Coatings Technology, 1995, 76/77(2) :521-527.
[12]Kubo S, Kato K. Effect of Arc Discharge on the Wear Rate and Wear Mode Transition of a Copper --impregnated Metalized Carbon Contact Strip Sliding against a Copper Disk[J]. Tribology International, 1999, 32(7):367-378.
[13]Tu C J, Chen Z H, Chen D, et al. Tribological Behavior and Wear Mechanism of Resin- matrix Contact Strip against Copper with Electrical Current[J]. Transactions of Nonferrous Metals Society of China, 2008, 18(5) :1157-1163.
[14]Ding T, Chen G X, Zhu M H, et al. Influence of the Spring Stiffness on Friction and Wear Behaviors of Stainless Steel/Copper-impregnated Metallized Carbon Couple with Electrical Current[J]. Wear, 2009, 267(5/8):1080-1086.
[15]冀盛亚[1],孙乐民[1],上官宝[1],张永振[1].表面粗糙度对黄铜/铬青铜摩擦副载流摩擦磨损性能影响的研究[J].润滑与密封,2009,34(1):29-31.
[16]何常红,吴广宁,张雪原,等.电铁受电弓-接触网系统电弧现象的研究[C]//中国电力系统保护与控制学术研讨会论文集.烟台,2008:712-716.