Patent ID: 8210015
Filing Date: 2012-07-03
Classification: B21B

Abstract:
1. Method for rolling plate or strip in a rolling stand ( 1 , 1 ′, 1 ″) with work rolls ( 2 ) supported on backup rolls ( 4 ) or on intermediate rolls ( 3 , 3 ′, 3 ″) with backup rolls ( 4 , 4 ′, 4 ″), wherein adjustment of a roll gap profile ( 6 ) is carried out by axial shifting of pairs of rolls (P 1 , P 2 , P 3 ) provided with curved contours ( 30 - 33 ′), each pair of rolls including a work roll and a backup roll or an intermediate roll, wherein the adjustment of the roll gap profile ( 6 ) is carried out by at least two of the pairs of rolls (P 1 , P 2 , P 3 ), which have differently curved contours ( 30 , 30 ′; 31 , 31 ′; 32 , 32 ′; 33 , 33 ′) and are axially shifted independently of each other, wherein the different contours are calculated by splitting resultant desired roll gap profiles ( 10 , 11 ) that describe the roll gap profile ( 6 ) into at least two different desired roll gap profiles ( 20 , 21 ; 22 , 23 ; 25 , 26 ), the adjustment including axially shifting each respective pair of the at least two pairs of rolls.