公开(公告)号：US20250010347A1

公开(公告)日：2025-01-09

申请号：US18713651

申请日：2022-11-30

Applicant: SMS group GmbH

Inventor： Stephan JUENGST ,  Christian MENGEL ,  Matthias PETERS

IPC: B21B37/16

Abstract: A method for operating a rolling line with rolling mill stands arranged one behind the other in the rolling direction, for the rolling of rolling material from a previous final rolling dimension to a changed new final rolling dimension is disclosed. According to the method, the rolling is carried out in two temporal phases I and II. In the first temporal phase, the rolling is carried out with a first load redistribution with known wedge-on-wedge rolling. In the first load redistribution the last rolling mill stand maintains its previously set gap unchanged. To shorten a transition time and wedge length during a transition, the rolling mill stands drive pass changes in accordance with a second load redistribution. The second load redistribution, differently than in the first temporal phase I, dynamically drives the last rolling mill stand to the new final rolling dimension.