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XU Jian, XIONG Wei-hao, FU Jiang-hua, YE Jia-jian, LI Zhen-biao. Analysis of Weld Pool Evolution in Electrical Contact Materials[J]. Materials and Mechanical Engineering, 2008, 32(5): 7-10.
Citation: XU Jian, XIONG Wei-hao, FU Jiang-hua, YE Jia-jian, LI Zhen-biao. Analysis of Weld Pool Evolution in Electrical Contact Materials[J]. Materials and Mechanical Engineering, 2008, 32(5): 7-10.
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Analysis of Weld Pool Evolution in Electrical Contact Materials

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  • Received Date: August 30, 2007
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    • Abstract
  • Based on analyzing the results from the temperature field model of the electrical contacts,the status changes of the electrical contact materials and the evolution of geometrical profile of weld pool after arcing were described in detail.The characteristics of the solidification process were summarized and their great effects on the microstructure and composition of the electrical contact materials were discussed as well.The results show that the cooling rate in the solidification process after arcing duration was as fast as 107 ℃·s-1.The especially distinct characters in the solidification process of weld pool in electrical contacts include easy nucleating,a high gradient of temperature,vary fast cooling rate,porous structure and chemical reactions and so on.
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    • References (12)
  • [1]
    Swing J,McBride J W.Modeling of energy transport in arcing electrical contacts to determine mass transfer[J].IEEE Transaction on CMPT,1998(1):54-60.
    [2]
    刘春,李震彪,程礼椿.开关触头的熔池尺寸[J].低压电器,2000(5):3-6.
    [3]
    荣命哲,王其平.电触头电弧侵蚀热传播过程的显热容法[J].电工技术学报,1993(1):54-58.
    [4]
    吴细秀,狄美华,李震彪.电流电弧作用下触头表面热过程的数值计算[J].华中科技大学学报(自然科学版),2003,31(2):93-96.
    [5]
    Ng G K L,Crouse P L,Li L.An analytical model for laser drilling incorporating effects of exothermic reaction,pulse width and hole geometry[J].Internationals Journal of Heat and Mass Transfer,2006,49:1358-1374.
    [6]
    李震彪,张冠生,秦庆生.电触头材料抗静熔焊能力的研究[J].中国电机工程学报,1994,14(1):35-39.
    [7]
    李震彪,张冠生,戚 颖.电触头材料及其不同配对时抗动熔焊能力的研究[J].电工合金,1994(1):1-5,27.
    [8]
    刘向军,费鸿俊.新型触头动熔焊数学模型的研究[J].电工技术学报,2002(2):81-84.
    [9]
    Doublet L,Ben Jemaa N,Hauner F,et al.Make arc erosion and welding tendency under 42 VDC in automotive area[C]//Proceedings of the 49th IEEE Holm Conference on Electrical Contacts,2003:158-162.
    [10]
    Chi Leung,Eric Streicher,Dennis Fitzgerald,et al.Microstructure Effect on Reignition and Welding Properties of Copper-Tungsten Electric Contact[C]//Proceedings of the Forty-Ninth IEEE Holm Conference on Electrical Contacts,2003:132-138.
    [11]
    周尧和,胡壮麟,介万奇.凝固技术[M].北京:机械工业出版社,1998.
    [12]
    石德珂.材料科学基础[M].北京:机械工业出版社,2003.
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