Method to regulate rolling stock thickness in strip rolling mill - uses mass flow regulation and formula to calculate initial strip thickness, for direct influence on roller position

摘要

To determine the regulating variable, the initial thickness (ha) is determined by the formula: ha x va = he x ve where va = initial speed, ve = input speed, he = initial thickness. The initial thickness calculated by the formula acts as a regulating variable, directly on the position adjustment of the working roller, via its rolling force and position control. Additional data required, e.g. intake thickness (he) is measured in front of the rolling gap, and this is used to calculate initial thickness, when the measuring point for the measured intake thickness has reached the rolling gap. USE/ADVANTAGE - The method is esp. for use in cold rolling mills. Thickness calculation without idle time.