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分析了一些影响对接焊缝横向残余应力的主要因素及其调控措施，认为，减轻自重引起的拘束可明显抑制横向残余应力
The main factors that affect the transverse residual stress of butt welds and their control measures are analyzed. It is believed that restraint caused by self-weight reduction can significantly reduce the transverse residual stress