赵清,王展,万成,房芳,李继文

• 1:河南科技大学土木工程学院
• 2:重庆齿轮箱有限公司
• 3:河南科技大学材料科学与工程学院

摘要(Abstract)：

采用包套热挤压法制备了稀土氧化镧掺杂W-25Cu-2.0 mass%La_2O_3合金,在JF04C型电接触试验机上测试了稀土掺杂钨铜合金的接触电阻、燃弧时间、燃弧能量等电接触性能,利用钨灯丝扫描电镜对电接触材料阴阳两极电弧侵蚀形貌进行了微观分析。结果表明:稀土钨铜合金触头材料接触电阻较纯钨铜合金明显减小,且接触电阻不随接触电压的增大而增大;燃弧能量和燃弧时间随着接触电压的增大而增大,且波动性变大;闭合过程中的燃弧能量和燃弧时间均大于断开过程。电弧侵蚀后材料转移方向为阳极向阴极转移;电弧侵蚀形貌为阳极表面出现微小凹坑、阴极表面产生微小凸起;阳极触头表面出现富W区,阴极触头表面出现富Cu区,La_2O_3主要聚集在富W区。

关键词(KeyWords)： 稀土钨铜合金;接触电阻;燃弧时间;燃弧能量;电弧侵蚀形貌

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51672070)

作者(Author): 赵清,王展,万成,房芳,李继文

DOI: 10.13289/j.issn.1009-6264.2017-0440

参考文献(References)：

• [1]范景莲,朱松,刘涛,等.超细/纳米W-20Cu复合粉末的液相烧结机制[J].中国有色金属学报,2011,21(7):1587-1593.FAN Jing-lian,ZHU Song,LIU Tao,et al.Mechanism of ultrafine/nano W-20Cu composite powder during liquid sintering[J].The Chinese Journal of Nonferrous Metals,2011,21(7):1587-1593.
• [2]朱松,范景莲,刘涛,等.细晶W-Cu材料的导电性能[J].中国有色金属学报,2010,20(7):1360-1364.ZHU Song,FAN Jing-lian,LIU Tao,et al.Electric conductivities of ultrafine W-Cu materials[J].The Chinese Journal of Nonferrous Metals,2010,20(7):1360-1364.
• [3]Hwang K S,Yu C P,Yang C K,et al.Effects of contamination on properties of W-15Cu prepared from mechanically alloyed powders[J].Powder Metallurgy,2003,46(2):113-116.
• [4]韩波,史庆南,谢明,等.直流条件下W-15wt%Cu电接触材料燃弧特性研究[J].稀有金属材料与工程,2012,41(6):994-997.HAN Bo,SHI Qing-nan,XIE Ming,et al.Arc erosion characteristics of w-15wt%Cu electric contact materials under dc condition[J].Rare Metal Materials and Engineering,2012,41(6):994-997.
• [5]陈文革,陈勉之,邢力谦,等.掺杂对WCu电触头材料电弧特性的影响[J].中国有色金属学报,2009,19(11):2029-2037.CHEN Wen-ge,CHEN Min-zhi,XING Li-qian,et al.Effect of doping on electrical arc characteristic of WCu electrical contact materials[J].The Chinese Journal of Nonferrous Metals,2009,19(11):2029-2037.
• [6]罗来马,卢泽龙,李浩,等.稀土改性钨合金的研究现状与发展趋势[J].稀有金属,2013,11(6):993-1003.LUO Lai-ma,LU Ze-long,LI Hao,et al.Current status and development trend on rare earth modified tungsten alloys[J].Chinese Journal of Rare Metals,2013,11(6):993-1003.
• [7]Yang X H,Liang S H,Wang X H,et al.Effect of WC and Ce O2 on microstructure and properties of W-Cu electrical contact material[J].Int.Journal of Refractory Metals&Hard Materials 28(2010)305-311.
• [8]王展,李继文,魏世忠,等.水热共还原法制备La2O3掺杂W-Cu复合粉末工艺研究[J].中国稀土学报,2015,33(4):461-468.WANG Zhan,LI Ji-wen,WEI Shi-zhong,et al.La2O3doped W-Cu composite powder prepared by hydrothermal-coreduction method[J].Journal of the Chinese Society of Rare Earth,2015,33(4):461-468.
• [9]王展,李继文,魏世忠,等.La2O3/Y2O3对水热法制备W-Cu粉体的影响[J].稀土,2017,38(2):31-37.WANG Zhan,LI Ji-wen,WEI Shi-zhong,et al.The influence of rare earth additives on the preparation of w-cu composite powders by hydrothermal method[J].Chinese Rare Earths,2017,38(2):31-37.
• [10]Kim D G,Kim G S,Suk M J,et al.Effect of heating rate on microstructrual homogeneity of sintered W-15wt%Cu nanocomposite fabricated from W-Cu O powder mixture[J].J Scripta Mater,2004(51):667.
• [11]郭凤仪,马同立,陈忠华,等.不同载流条件下滑动电接触特性[J].电工技术学报,2009,24(12):18-23.GUO Feng-yi,MA Tong-li,CHEN Zhong-hua,et al.Characteristics of the sliding electric contact under different currents[J].Transactions of China Electrotechnical Society,2009,24(12):18-23.
• [12]陶麒鹦,周晓龙,周允红,等.Ag Cu O电触头材料的接触电阻及电弧侵蚀形貌[J].稀有金属材料与工程,2015,44(5):1219-1223.TAO Qi-ying,ZHOU Xiao-long,ZHOU Yun-hong,et al.Contact resistance and arc erosion morphology of Ag Cu O electrical contact material[J].Rare Metal and Materials and Engineering,2015,44(5):1219-1223.
• [13]Wang S,Zheng T T,Xie M,et al.Internal oxidation thermodynamics and isothermal oxidation behavior of Ag Sn O2 electrical contact materials[J].Rare Metal and Materials and Engineering,2014,43(4):796-798.
• [14]万成,李继文,王展,等.高致密细晶W-25Cu触头材料的电接触性能[J].中国有色金属学报,2017,27(3):505-513.WAN Cheng,LI Ji-wen,WANG Zhan,et al.Performances of high-density fine-grain W-25Cu electrical contact materials[J].The Chinese Journal of Nonferrous Metals,2017,27(3):505-513.
• [15]万成,李继文,王展,等.W-30Cu电接触材料直流电接触行为[J].中国有色金属学报,2016,26(1):126-136.WAN Cheng,LI Ji-wen,WANG Zhan,et al.Electrical contact behavior of W-30Cu contact material under direct current condition[J].The Chinese Journal of Nonferrous Metals,2016,26(1):126-136.
• [16]Ma D Q,Xie J P,Li J W,et al.Contact resistance and arc erosion of tungsten copper contacts in direct currents[J].Journal of Wuhan University of Technology-Mater Sci Ed,2016,32(4):816-822.
• [17]郭迎春,耿永红,陈松,等.电触点直流电侵蚀研究[J].稀有金属材料与工程,2007,36(3):264-268.GUO Ying-chun,GENG Yong-hong,CHEN Song,et al.DC electric erosion of electric contacts[J].Rare Metal Materials and Engineering,2007,36(3):264-268.
• [18]聂祚仁,周美玲,张久兴,等.稀土钨电极材料及稀土氧化物的作用[J].稀有金属材料与工程,1997,26(6):1-6.NIE Zuo-ren,ZHOU Mei-ling,ZHANG Jiu-xing,et al.Tungsten electrode material and the effect of rare-earth metallic oxides on it[J].Rare Metal Materials and Engineering,1997,26(6):1-6.

文章评论(Comment)：