How to deal with the wrong side of steel pipe in production

Manufacturing essentials of spiral steel pipe:
1, the acceptance of hot rolled steel strip tube bad, often warm spiral forming, spiral joint accept active submerged arc welding, submerged arc welding joints are not less than one.
2, the steel pipe is allowed to have steel belt enemy weld, steel belt enemy and pipe interval shall not be less than 300mm. After negotiation between Buyer and manufacturer, it is permitted that the enemy weld shall be located at the pipe end, but there shall be at least 150mm circumferential separation between the enemy weld and the corresponding screw seam at the pipe end.
3. The butt steel pipe shall be allowed to have two sections of short baffle steel pipe of unified specifications and models, and the length of each section of short steel pipe shall not be less than 2m. The spiral seam on both sides of the circumferential weld shall be staggered, and the circumferential interval shall not be less than 150mm.
4, the type of steel this scale category of steel pipe should be accepted in GB/T700-1988 Q195, Q215, Q235 steel welding. Note: Q refers to the letter of yield strength. The following values are yield strength values.
If the production process of spiral steel pipe is not fair, the mechanical parameter setting is not appropriate, there will be signs of deviation, especially the large diameter spiral steel pipe, which is often said to be the wrong side phenomenon.