Patent ID: 8474294

Claim:
A rolling stand ( 100 ) for rolling metal strip ( 200 ) having a stepped preprofiling, which comprises at least two independently rotating partial rolls ( 110 -i, where i =1, 2, . . . ,) that are arranged side by side axially in a direction transverse to the direction of conveyance of the metal strip and a support device ( 120 ), which is arranged opposite the at least two partial rolls and together with the at least two partial rolls fixes an overall roll gap with an overall roll gap cross section; wherein the two or more adjacent partial rolls ( 110 -i, where i=1,2, . . . ,) are each cylindrically shaped and together with the support device fix respective adjacent partial roll gaps (i, i +1) with different height values h i , h i+1 , where h i ≠h i+1 and i=1, 2, . . . , where the adjacent partial roll gaps together define the overall roll gap cross section, which has a stepped shape; and where the height values h i and h i+1 of respective adjacent partial roll gaps (i, i+1) are individually selected in such a way that they satisfy the following mathematical relationship: Δ h i /h i =Δh i+1 /h i+1 =ε=constant with respect to the metal strip ( 200 ) entering the overall roll gap, which metal strip ( 200 ) has stepped preprofiling that is geometrically similar to the overall roll gap cross section before rolling but which has greater respective step heights of h i +Δh i and h i+1 +Δh i+1 , where h i +Δh i ≠h i+1 +Δh i+1 and Δh 1 >0 and Δh i+1 >0, than the partial roll gaps (i).