Causes: the strip has a larger snake shape; the take-up device holds the tension; the setting is unreasonable; the strip goes into the coiler; the centering is not good; the coil tension is not set properly.
Elimination measures: strictly control the shape of plate and reduce the serpentine; according to the different specifications of the strip, set up the take-up system; set the coiling tension of the strip.
Definition and appearance: the ends of the steel coils are uneven, one circle higher than the circle, showing a different degree of pagoda shape or bread shape.
Defects: cold-rolled steel sheet (coil)