What is the difference in assembly technology between high-frequency straight seam steel pipes and submerged arc straigh

The main difference between the assembly of high-frequency straight seam steel pipes and buried arc straight seam steel pipes is the use of different raw materials, forming methods, fastening methods, production units, and production processes.

• Submerged arc straight seam steel pipes are produced using the narrowest 1250mm coil, medium plate, and medium thick plate as production materials. High frequency straight seam steel pipes are produced from the widest 1500mm strip steel. Low content of strip steel.
• The forming method of buried arc straight seam steel pipe is JCOE cold stamping, which is characterized by gradually forming sheet metal in units of 50mm. J. C, O, and E represent the forming method of buried arc straight seam steel pipes.The forming method of high-frequency straight seam steel pipe can be a cold forming process using multiple rollers, which compresses and aligns the two ends of the strip steel. Its characteristic is that the molding method is uninterrupted and continuously fastened.
• The characteristic of the submerged arc fastening method is to use the electric shock along the wire and plate to fasten the filler. The characteristic of the fastening method for high-frequency straight seam steel pipes is to use the high-frequency electrical phenomenon of electric current to generate a temperature rise in the cross-section of the strip at both ends in a short period of time and cause the strip to self melt under external force.
• The high-frequency straight seam steel pipe production unit is on the same impact line as the uninterrupted production line, while the submerged arc fastening straight seam steel pipe has up to fifteen intermittent production processes.
• High frequency straight seam steel pipes have fewer specifications and thinner thickness. The buried arc straight seam steel pipe can produce any specification of 325-1600mm or more, with a thickness of up to 80mm.