Spiral steel tube production has occurred on the wrong side, and many factors affect the production practice, often due to the over-error of the dry and wrong side leading to steel tube degradation. It is necessary to analyze the causes and preventive measures of helical tube errors.
Poor health of the edge band is another important cause of errors.
2. Due to the poor shape and size accuracy of the head and tail of the trimmed tape, it is easy to cause errors caused by the bending of the hard edge of the butt tape.
3. When the welding seam between the head and the tail is strengthened, if the cladding forming can not be properly handled, it will easily lead to larger offset.
4. The bending of the steel strip is the most important factor that causes the mistake of the spiral welded pipe forming. The inclination angle of the steel strip will continue to deform, leading to the change of the weld, leading to the opening, staggering and even standing on one side. The quality of steel is seriously affected, so it is an effective way to reduce the bending error in steel production by controlling the continuous control of vertical rolls and correcting the camber angle of the forming department.