吴义党, 杨志鹏, 刘鸣宇, 张斌. 核岛主设备带极埋弧堆焊层残余应力研究[J]. 南昌航空大学学报(自然科学版), 2016, 30(3): 103-108. DOI: 10.3969/j.issn.1001-4926.2016.03.019
引用本文: 吴义党, 杨志鹏, 刘鸣宇, 张斌. 核岛主设备带极埋弧堆焊层残余应力研究[J]. 南昌航空大学学报(自然科学版), 2016, 30(3): 103-108. DOI: 10.3969/j.issn.1001-4926.2016.03.019
WU Yi-dang, YANG Zhi-peng, LIU Ming-yu, ZHANG Bin. Study on Residual Stress of Submerge Arc Strip Cladding Layer of Nuclear Island Main Equipment[J]. Journal of nanchang hangkong university(Natural science edition), 2016, 30(3): 103-108. DOI: 10.3969/j.issn.1001-4926.2016.03.019
Citation: WU Yi-dang, YANG Zhi-peng, LIU Ming-yu, ZHANG Bin. Study on Residual Stress of Submerge Arc Strip Cladding Layer of Nuclear Island Main Equipment[J]. Journal of nanchang hangkong university(Natural science edition), 2016, 30(3): 103-108. DOI: 10.3969/j.issn.1001-4926.2016.03.019

核岛主设备带极埋弧堆焊层残余应力研究

Study on Residual Stress of Submerge Arc Strip Cladding Layer of Nuclear Island Main Equipment

  • 摘要: 介绍了核岛主设备带极埋弧堆焊工艺,对堆焊层残余应力分布进行了有限元模拟计算,采用小直径盲孔法测量堆焊层残余应变并计算残余应力。通过理论模拟及试验件测量相结合的研究过程,获得堆焊层不同区域的残余应力值及其方位。为预防产品堆焊层缺陷提供了一定的理论基础,有助于核岛主设备堆焊工艺优化及裂纹缺陷的预防。

     

    Abstract: The submerge arc strip cladding process used on nuclear island main equipment was introduced. The cladding layer residual stress distribution was simulated by means of the finite element analysis, using small diameter blind hole method for measuring actual welding residual strain and calculating of the residual stress value. Through the combination of theoretical simulation and experimental measurement, the residual stress value and direction in different regions of cladding layer were obtained. Providing of a theoretical basis for the prevention of welding defect of main equipment cladding layer, which is contribute to optimize the cladding process and prevent of crack defects of nuclear island main equipment.

     

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