Paper Title:
The Research of Integral Cu-W Electric Contact by Friction Welding
  Abstract

Electric contact is an important component of high voltage circuit breaker switch lubicle, isolating switch and ground switch. It is composed of arc-extinction end and conduction end. The usual material of arc-extinction end is copper-tungsten and the usual material of conduction end is copper or chrome-copper. Currently, four process for making the integral electric contact such as common brazing, vacuum brazing, electric-beam welding; liquid-phase sintering is of the best integral technique capability. This article puts forward a process by friction welding for integral Cu-W electric contact, and studies about the weldability between copper-tungsten and copper or chrome-copper, and between copper and chrome-copper. In order to solve the worse weldability between copper-tungsten and copper or chrome-copper, the design conception of intermediate layer is tentatively suggested. From experimental results, using the production method of friction welding is practicable to integral electric contact. It has some advantages, such as high availability of material, high productivity, high ratio of finish products, and it has no any influence on environment.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
1911-1914
DOI
10.4028/www.scientific.net/KEM.353-358.1911
Citation
H. Song, L. H. Fu, P. L. Duan, Z. B. Sun, "The Research of Integral Cu-W Electric Contact by Friction Welding", Key Engineering Materials, Vols. 353-358, pp. 1911-1914, 2007
Online since
September 2007
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Price
$32.00
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