公开(公告)号：US11938528B2

公开(公告)日：2024-03-26

申请号：US17261118

申请日：2019-07-18

Applicant: SMS group GmbH

Inventor： Jürgen Seidel ,  Uwe Baumgärtel ,  Ralf Wachsmann ,  Peter Bonekemper

IPC: B21B37/42 ,  B21B1/26 ,  B21B13/14 ,  G05B13/04

CPC classification number: B21B37/42 ,  B21B1/26 ,  B21B13/142 ,  G05B13/04 ,  B21B2261/04 ,  B21B2267/18 ,  B21B2269/04

Abstract: A method ascertains control variables for active profile and flatness control elements for at least one rolling stand for hot rolling metal strip with a plurality of i=1 . . . I successive passes and for ascertaining profile and center flatness values for the hot-rolled metal strip. The occurrence of fluctuations in the center flatness of the metal strip after the individual passes and the resulting disadvantages for the rolling stability and the product quality are prevented. The method provides that, also for the target center flatness of the metal strip after a predetermined pass k with i=1 . . .