Why does the strip bend when it is rolled?
In the rolling process of strip tension is too large or too small will bring many adverse effects on the operation, including in the choice of a plan, must be properly chosen at each strip tension, if the improper selection of strip tension, will affect the quality of strip steel and the actual operation, when the strip coiler tension before and after the selection is too large that will cause the broken belt or rolled steel coil is heart-shaped, tension is too small will cause damage to roll off with Le roll or strip.
Side bending is due to uneven deformation of both sides of the strip when rolling (one of the reasons for the transverse tolerance of the incoming material), and the side bending occurs after the side of the mill becomes longer than the other side.The warping is complicated, which is related to the diameter deviation of the roll, the friction condition between the upper and lower surfaces, the tension and the size of the coiling sleeve
The strip will bend after rolling:1) operation reasons, because the operator double pendulum adjustment is unreasonable, resulting in strip deviation.2) electrical reasons, due to the sudden decrease or disappearance of the tension of the coiler during the rolling process, lead to strip deviation and fracture.3) due to roll, roll grinding after serious pressure, taper, makes the school not to the operator in the rolling process of double pendulum regulation increases taper, will cause serious side light waves caused by shape defects, cause strip deviation and broken belt.4) strip edge control device failure, deviation device, tube or mirror surface pollution or other objects covered, so that the deviation of the device failure, resulting in the first line of deviation
