If the
ssaw steel pipe production process is unreasonable if the machine parameter settings shall not be deemed deviation phenomenon occurs in the production process, especially for large diameter spiral steel pipe, which is often said the wrong side of the phenomenon.
For the production of spiral steel pipe processing program has been completed on the wrong side as follows:
1, The position of the wrong side of the polished, then welding
2, If a situation occurs frequently on the wrong side, you can replace the equipment.
After Spiral Pipe wrong side analysis of the causes produce the wrong side is very necessary, the following is to produce the wrong side of the common reasons:
1, Strip steel camber is caused by the wrong side of the most important factors. In forming the spiral welded pipe, steel strip camber angle will constantly change shape, leading to changes in the weld gap, resulting in open seam, wrong side or even take sides.
2, Strip head and tail butt welding weld reinforcement is large, when the over-molding, if not handled properly, likely to cause greater wrong side.
3, Due to the poor is not trimming the strip head and tail shape and size precision, easy to cause docking strip hard bend caused by the wrong side.
4, The strip edges in poor condition is another important reason for the wrong side.
Therefore, the observation strip coil-camber situations after, by controlling the vertical rolls so that the disc can be cut and removal of part of camber angle forming the continuous control and corrective camber of the strip is the reduction in the production process effective way of generating the wrong side.
