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XUE Xiao-long, SANG Zhi-fu, JIANG Wei-zhong. Numerical simulation on discontinuous welding of a hot tap structure[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (4): 25-28.
Citation: XUE Xiao-long, SANG Zhi-fu, JIANG Wei-zhong. Numerical simulation on discontinuous welding of a hot tap structure[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (4): 25-28.
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Numerical simulation on discontinuous welding of a hot tap structure

  • 1.

    College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009, China

  • 2.

    Yangzi Petrochemical Maintenance and Installation Co. Ltd., Nanjing 210048, China

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  • Received Date: May 16, 2004
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    • Abstract
  • The temperature field and residual stress distribution of discontinuous welding on an orthogonal nozzle were simulated and comparied with the results of continuous welding.It can be concluded that the local high temperature can be reduced effectively using the technique of discontinuous welding and smaller residual stresses are obtained.The metallographic analysis shows that the metallurgical structure is proper.The results of internal pressure test indicate that the hot tap structure can work safely.
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