Spiral welded pipe is based on strip coil as the main raw material

　　Spiral welded pipe is based on strip coil as the main raw material, after the extrusion at room temperature, the use of automatic double wire double-sided submerged arc welding process welded seam steel pipe. The high strength of API 5L X70 PSL2 SSAW 3PE Anti-corrosion spiral steel pipecan produce a larger diameter pipe with a narrow billet, and the same width of the billet can be used to produce different pipe diameters. So the use of spiral pipe is also very wide, but the spiral welded pipe plant in the production of spiral welded pipe process, we should pay attention to the following questions:

　　1, oiling marking: in the inspection of qualified spiral pipe oiling operation to prevent corrosion, and in accordance with the requirements of customers marking.

　　2, flatten milling edge: the use of anvil machine will be the original curled steel plate leveling, and then through the milling machine on both sides of the steel plate for double-sided milling, to achieve the required plate width, parallel side of the board and groove shape.

　　3, shear molding: the steel plate along the spiral curled into a tube.

　　4, butt welding: double-sided submerged arc welding technology for pre-welding, welding, welding. The welded steel pipe was cut into a standard length using a plasma scale.