If the spiral pipe in the production process is unreasonable, the machine parameters set inappropriate deviation phenomenon will occur, especially large-diameter spiral pipe, which is often the wrong side of the phenomenon.
For the production has been wrong side of the spiral pipe treatment program is as follows:
1, The location of the wrong edge polished, and then make up welding.
2, If the wrong side of the situation often occur, you can only replace the equipment.
Spiral pipe produced after the wrong edge of the analysis of the reason is very necessary, the following is a common cause of wrong edge:
1, The sickle bend steel strip is the most important factor in the wrong side of the pipe. In the spiral pipe molding, the sickle bend steel strip will continue to change the forming angle, resulting in weld gap changes, resulting in open seam, the wrong edge or even take the edge.
2, The head and tail of the steel butt welding weld residual height larger, over-molded if handled properly, likely to cause greater wrong edge.
3, Due to the shape of the non-trimming steel head and tail and the size of poor accuracy, easy to cause when the steel strip bending caused by the wrong side.
4, The edge of the strip poor condition is another important reason for the wrong side.
Therefore, it is an effective way to observe the sickle bend after uncoiling the steel strip, cut off the part of the scissors by controlling the vertical roller, and to continuously control and rectify the forming angle, so as to reduce the occurrence of wrong edges in the sickle bend of the steel strip during the production process.
