公开(公告)号：JP2002192213A

公开(公告)日：2002-07-10

申请号：JP2000390753

申请日：2000-12-22

Applicant: ABB AB

Inventor： JONSSON LARS ,  MAYER CLOSE

IPC: B21B38/02 ,  B21B37/00 ,  B21C51/00 ,  G05B13/02

Abstract: PROBLEM TO BE SOLVED: To reduce the tolerance of a flatness degree in stripping operation. SOLUTION: This is a method which can be used to control the flatness degree of a strip 1 comprising a rolled material. In the method in which the measured value of the flatness degree of the step 1 obtained at least in one region after passing through a rolling portion 5 is used to control the flatness degree of the rolled material by comparing with the target value of a first prescribed rolling flatness degree and to generate a controlling signal of the rolling portion 5 for adjustment, the target value of the flatness degree at least in one region is made to provide a method charaderizing a further step comprising the target value of the rolling flatness degree which is made to rely on a second longitudinal direction for strip 1 which is forced to rely on the position of the longitudinal direction of the strip.