介绍了超薄壁，大直径，长筒体，纵、环缝自动焊接系统的结构、组成、工作原理及设计的主要特点。
The structure, constitute, working principle, and design feature of automatic welding system which pro- duces extra- thin, large diameter, long tube, and longitudinally or circle weld are introduced.
随焊冲击碾压是一种控制薄壁结构焊接应力变形、防止热裂纹的新方法。
Weld with trailing impactive rolling (WTIR) is a new technique to reduce the residual stress and distortion and prevent hot cracking of thin-walled structure.
因此这种电源很适合于黑色及有色金属的薄壁结构件焊接。
Therefore, it is very suitable for welding the thin-wall construction of ferrous and nonferrous metals.
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