Which is better, submerged arc welding or high frequency welding?
Both longitudinal submerged arc welded pipe and longitudinal high frequency welded pipe are one kind of longitudinal welded pipe, and their names come from the expression of weld. The differences between longitudinal submerged arc welded pipe and longitudinal high frequency welded pipe are: welding process, forming process, application field, appearance and so on.
Welding difference between longitudinal submerged arc welded pipe and longitudinal high frequency welded pipe
Longitudinal submerged arc welding pipe uses welding wire and plate to fill the weld, which can be understood as welding the weld of longitudinal steel pipe through filler. Submerged arc welding is to embed the welding seam, and the flux of longitudinal submerged arc welding pipe is granular, which plays a role in cooling the welding seam of long longitudinal submerged arc welding pipe.
The skin effect of high-frequency current is used to make the weld edge of steel plate melt quickly in a very short time, and the weld is fused together under the action of external force, and the weld is base metal fusion welding.
JCOE process is adopted in the production of longitudinal submerged arc welded pipe, which is more complicated than the forming process of longitudinal high-frequency welded pipe and lower in forming efficiency. JCOE process is an image letter forming process, which is a cold forming process in which steel plates are gradually deformed by stamping with a 10,000-ton press.
