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CuW/CrCu触头材料抗拉强度的研究
引用本文:吴文安,梁殿清,肖春林,苗晓丹.CuW/CrCu触头材料抗拉强度的研究[J].电工材料,2003(4):18-23.
作者姓名:吴文安  梁殿清  肖春林  苗晓丹
作者单位:沈阳金昌普新材料股份有限公司,沈阳,110141
摘    要:重点研究了真空烧结方法制造的Cuw/CrCu高压开关弧触头材料的结合强度,并分析了制造方法对Cuw/CrCu触头材料结合强度的影响。在万能材料试验机上进行抗拉强度试验,结果显示,真空烧结方法制造Cuw/CrCu触头材料的抗拉强度最好,可以达到400MPa以上,能够满足超、特高电压和特大容量高压开关的技术要求。通过对断口的扫描电镜分析,发现真空烧结的触头材料结合面杂质含量少、无氧化物、孔隙少,这可能是导致真空烧结Cuw/CrCu触头材料的结合强度高的主要原因。

关 键 词:CuW/CrCu触头材料  抗拉强度  结合强度  真空烧结  扫描电镜分析
修稿时间:2003年9月20日

Study on Joint Tensile Strength of CuW/CrCu Arc Contact
WU Wen-an,LIANG Dian-qing,XIAO Chun-lin,MIAO Xiao-dan.Study on Joint Tensile Strength of CuW/CrCu Arc Contact[J].Electrical Engineering Materials,2003(4):18-23.
Authors:WU Wen-an  LIANG Dian-qing  XIAO Chun-lin  MIAO Xiao-dan
Abstract:This paper deals with the joint strength of high voltage switch CuW/CrCu arc contact manufactured by vacuum sintering, and analyses the effect of manufacture method on the joint strength of CuW/CrCu are contact. It is shown that tensile strength of CuW/CrCu arc contact by vacuum sintering has the highest tensile strength, beyond 400MPa on the universal testing machine, which can achieve the technology demand of superhigh voltage and high voltage switch with super capacity. The SEM analysis shows that there is less impurity and porosity and few oxide on the fracture surface of the CuW/CrCu arc contact manufactured by vacuum sintering, which may lead to the high joint strength of CuW/CrCu arc contact.
Keywords:CuW alloys solid contact  vacuum sintering  powder metallurgy
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