Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (10): 205-209.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Phenomenon of Running-in Electricity in Running-in Experiments and the Corresponding Analyses

Xie Xiao-peng1  Wang Ze-gui2   

  1. 1. School of Automotive Engineering, South China Univ. of Tech. , Guangzhou 510640 , Guangdong, China;2. School of Mechanical Engineering, South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2007-03-01 Online:2007-10-25 Published:2007-10-25
  • Contact: 谢小鹏(1961-) ，男，教授，博士生导师，主要从事摩擦学理论与应用研究. E-mail:xiexp@scut. edu.cn
  • About author:谢小鹏(1961-) ，男，教授，博士生导师，主要从事摩擦学理论与应用研究.
  • Supported by:

    广东省科技计划项目(2003C102031 )

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Abstract:

In the running-in experiments , there exists a running-in electricity phenomenon among the running-in , the steel , the involute and the spur-gear pairs in any of three kinds of running-in oils , namely , the electric resistance hetween the gear pairs measured hy digital or index ohmmeter is prohahly negative. This phenomenon is a surface electric phenomenon in the presence of the metal pair wear. In this paper , the mechanism of the running-in electricity phenomenon is investigated , finding that the phenomenon hecomes more ohvious when the difference in oxidative wear of the two surfaces increases. Moreover , a method to judge the wear status of a friction pair by measuring the electric resistances hetween the pair is put forward , also the method to revise the measured data of oilfilm electric resistance.

Key words: running-in, gear, oil-film electric resistance, running-in electricity phenomenon