Two point submerged arc welding of ptw-1000 straight pipe flange
Model specification
Ptw-1000, applicable pipe diameter specification is Φ 325-1016mm; customized Φ □ □ - □ □ □ mm
Equipment use
The submerged arc two-point welding of the straight pipe flange is a butt welding for the straight pipe and the high neck flange developed by our company specially for the UHV Tower in the power industry; the automatic welding machine integrates the welding process obtained by our company through a large number of process tests, It has achieved the automatic backing, filling and cover welding of straight pipe and high neck flange through submerged arc welding. Compared with the traditional gas shielded welding, the efficiency of the welding is more than doubled, greatly improving the production efficiency of the factory, improving the working environment of the workers, and further reducing the production cost.
Welding process: submerged arc welding (SAW)
Welding method: external submerged arc welding, internal submerged arc welding
Configuration mode: □ single head two-point welding □ double head two-point welding
welding quality
The welding line is even and beautiful without appearance defects;
The qualification rate of grade I or II welds in radiographic or ultrasonic testing is more than 98%;
 meet the requirements of pressure test or impact, tensile, bending and other mechanical properties inspection.
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