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本报告研究了焊条材料和消除应力退火温度对StE70钢焊接内应力的影响,测定了焊缝区的内应力和硬度,阐述了热应力和相变应力的综合效应。
The present paper studies the effect of welding rod material and stress relief annealing temperature on the internal stress of welding of StE70 steel. The internal stress and hardness of the weld zone are measured, and the comprehensive effect of thermal stress and phase transformation stress is expounded.