Device for controlling roll gap during rolling of steel materials comprises number of parallel-connected piezo-elements for piezoelectric adjusting device distributed over reference surface

摘要

Device for controlling the roll gap during rolling of steel materials comprises a number of parallel-connected piezo-elements for a piezoelectric adjusting device (14) distributed over a reference surface. The reference surface lies in the power flow of a roll stand. The piezo-elements are connected to a control loop for each theoretical value control of the rolling stock thickness (15).