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.
通过调整滚轮的中心距，适用不同直径筒体。
Applicable for all cylinder of different diameter by adjusting the trolley center distance.
本实用新型结构简单，成本低廉，方便实用，适用各种直径筒体的焊接操作。
The utility model has the advantages of simple structure, low cost and high convenience and practicability, and the utility model is suitable for the welding operations of various diameter barrels.
而折边锥形封头一般焊接于两公称直径不同的筒体中间，使两公称直径不同的筒体连为一体！
While ruffled tapered header general welding in two different nominal diameter of cylinder, make two nominal diameter of different cylinder is an organic whole repeatedly!
而折边锥形封头一般焊接于两公称直径不同的筒体中间，使两公称直径不同的筒体连为一体！
While ruffled tapered header general welding in two different nominal diameter of cylinder, make two nominal diameter of different cylinder is an organic whole repeatedly!
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