According to the different product structure, butt fusion welding process and lap seam welding process are used to respectively weld left and right half shell of upper body.
上体左、右半壳直焊缝视产品结构不同，分别采用对接熔化焊和搭接缝焊工艺。
2
Butt contact and angular contact welding seam corrosion detection sensors were designed respectively.
分别设计了适合对接和角接焊缝腐蚀检测的两种传感器。
3
A moving utensil for portable ultrasonic probe which is made of chargeable electronic screwdriver is introduced, and it can be used to assist detector to detect steel butt-joint welding seam.