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通过实验测量和有限元计算,研究了加热装置的大小和布置、主支管的材料和规格、多管加热、主管附加加热等因素对接管座安装焊缝热处理温度场的影响。结果表明:加热装置的中心与焊缝中心重合,主管沿接管座根部局部附加加热至520～580℃时,可较好地克服最高温度偏移。该方法适用于不同材料、不同主支管壁厚比和不同的热处理温度下的接管座安装焊缝热处理。
Through the experimental measurement and finite element analysis, the influences of the size and arrangement of the heating device, the materials and specifications of the main branch pipe, the heating of the multiple pipes and the additional heating of the main pipe on the temperature field of the heat treatment of the weld of the joint seat are studied. The results show that the center of the heating device coincides with the center of the weld, and the main pipe can better overcome the maximum temperature deviation when the main pipe is additionally heated to 520-580 ° C along the root of the socket. The method is suitable for different materials, different main branch pipe wall thickness ratio and different heat treatment temperature of the joint seat weld seam heat treatment.