公开(公告)号：US20240286181A1

公开(公告)日：2024-08-29

申请号：US18574344

申请日：2022-06-28

Applicant: CONSTELLIUM ISSOIRE

Inventor： Romain-Fabrice BERNES ,  Daniel BELLOT ,  Vincent DUHOUX ,  Clement QUESTROY ,  Jean-François VERDIER

IPC: B21B27/10 ,  B21B37/32

CPC classification number: B21B27/106 ,  B21B37/32 ,  B21B2267/19

Abstract: The invention relates to a method for preheating at least one working roll for rolling, involving phases of:



determining a target thermal expansion profile,
determining an effective mean temperature profile of longitudinal segments of the working roll and for determining a target mean temperature profile,
activating a plurality of inductors distributed along the working roll in order to reduce a difference between the effective mean temperature and the target mean temperature.