METHOD AND EQUIPMENT FOR CORRECTINGLY CONTROLLING ROLLING REDUCTION IN ROLLING MILL

摘要

PURPOSE:To make the sheet thickness of a rolling material at its outlet side constant by inputting a detecting signal of a pressing force to be provided to a work roll or a position of the direction of pressing force is inputted to the inputting point of a draft-position-setting signal and eliminating the variation of a rolling load. CONSTITUTION:A pressing force to be provided to work rolls 3, 4 or a position of the direction of the pressing force of rolls 3, 4, in correspondence with a horizontal bending device 11 for providing a force to either of the work rolls 3, 4, are detected. The detected signal is inputted to the inputting point of a draft- position-setting signal SR of a rolling-reduction-control device for controlling the drive of a rolling reduction device 10. The device 10 generates a rolling down force between the rolls 3, 4 by the variation of a rolling-reduction driving body 16. In this way, the variation of rolling load caused by the pressing force is eliminated, and the sheet thickness of a rolling material 6 at its outlet side is made constant.