The difference between high-frequency welded steel pipe and straight-seam welded steel pipe
Date:
03 Apr,2023
High-frequency straight-seam resistance welded steel pipe is a hot-rolled coil formed by a forming machine, using the skin effect and proximity effect of high-frequency current to heat and melt the edge of the tube billet, and perform pressure welding under the action of an extrusion roller to achieve production.
High-frequency straight-seam resistance welded steel pipe is a hot-rolled coil formed by a forming machine, using the skin effect and proximity effect of high-frequency current to heat and melt the edge of the tube billet, and perform pressure welding under the action of an extrusion roller to achieve production. High-frequency resistance welded steel pipes are different from ordinary welded pipe welding processes. The welds are made of the base material of the steel strip body, and the mechanical strength is better than that of ordinary welded pipes.The appearance is smooth, the accuracy is high, and the cost is low. The remaining height of the weld is small, which is conducive to the coating of 3PE anticorrosive coating.The welding method of high-frequency welded steel pipe is significantly different from that of submerged arc welded pipe.Since welding is done instantly at high speed, the difficulty of ensuring welding quality is much higher than that of submerged arc welding. Straight-seam welded pipes, steel pipes made of hot-rolled or cold-rolled steel plates or steel strips, are called straight-seam welded pipes after straight-seam welding on welding equipment.(Named because the welding of the steel pipe is in a straight line).
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