Research of root welding technology and welding procedure with back-up shoes pipeline girth welding
Owing to the small diameters of conduit pipes and bracing tubes, the girth welding has to be done with one side welding both sides formation technology.
Research on pipeline girth welding joint with copper infiltration and copper back-up shoes root welding
The automatic internal girth weld tracker using contact type guide wheel as sensor is introduced in this paper.
The possible girth weld match procedure for the pipeline is discussed too.
Application of PIW48 pipe inner girth welding line
The invention is used for automatic air gouging back gouging of the straight welding line and the girth welding line of the large cylindrical welding structure.
Size is expected to start from the calculation, cutting, straight seam welding, the whole round, press-fit, girth welding, leak detection, have a certain degree of technical difficulty.
