In this paper, the effect of copper content on the weldmetaltoughness in SAW of HSLA steels was studied by changing the copper content in welding wire.
The results show that the different heat treatment affects the toughness of the weldmetal differently.
试验结果表明，焊后对焊缝金属进行不同热处理时，其韧性均有不同程度的影响。
3
The influence factors such as the hydrogen content in weldmetal, the hydroscopicity in electrode coating and the toughness of weldmetal of basic electrodes are studied.