Method and device for rolling metal strips

Abstract

A method for manufacturing flexible rolling of metal strips, in which a metal strip with pre-definable material thickness s guided through a mill stand by at least two operating steps, which includes several rolls, the metallic strip is during the rolling operation set to lead through a roll gap, where a curve bending line is steered to achieve a defined profile.

1 .- 21 . (canceled) 
     
     
         22 . A method for manufacturing flexible rolling of metal strips, comprising:
 guiding a metal strip with a pre-definable material thickness through a mill stand containing several rolls,   leading the metallic strip during a rolling operation through a roll gap, and   steering a curve bending line to achieve a defined profile.   
     
     
         23 . The method according to  claim 22 , wherein the defined profile comprises different thicknesses over a length of the metal strip. 
     
     
         24 . The method according to  claim 22 , wherein the defined profile comprises at least two thicknesses over a length of the metal strip. 
     
     
         25 . The method according to  claim 22 , wherein at least the rolls that effectively interact with the metal strip are formed. 
     
     
         26 . The method according to  claim 22 , wherein the metal strip comprises a width range of 400 to 1600 mm. 
     
     
         27 . The method according to  claim 22 , further comprising controlling a thickness profile in order to renew the gap setting. 
     
     
         28 . The method according to  claim 22 , further comprising using a part of an edge for evaluation of a plateau. 
     
     
         29 . The method according to  claim 22 , further comprising work roll bending in dependence on the rolling force to influence flatness of the metal strips. 
     
     
         30 . The method according to  claim 22 , further comprising setting three existing systems to measure flatness of the metal strip. 
     
     
         31 . The method according to  claim 22 , further comprising using operating trials by a contactless SI-Flat System, which is based on an evaluation of local amplitude of oscillation. 
     
     
         32 . The method according to  claim 22 , wherein a width range of the metal strip is 400 to 1600 mm. 
     
     
         33 . A device for manufacturing flexible rolling of metal strips, in which a metal strip with pre-definable material thickness is guided through a mill stand by at least two operating steps, which contains several rolls, the metallic strip is during the rolling operation set to lead through a roll gap, where the curve bending line is steered and wherein at least the rolls that effectively interact with the metal strip are formed with a width range of 400 to 1600 mm. 
     
     
         34 . The device according to  claim 33 , wherein the metal strip comprises different thicknesses over the length of the metal strip. 
     
     
         35 . The device according to  claim 33 , wherein the metal strip comprises at least two thicknesses over the length of the metal strip. 
     
     
         36 . The device according to  claim 33 , wherein at least the rolls that effectively interact with the metal strip are formed. 
     
     
         37 . The device according to  claim 33 , further comprising a controller to control a thickness profile in order to renew a gap setting. 
     
     
         38 . The device according to  claim 33 , wherein the use of a part of the edge for evaluation of the plateau. 
     
     
         39 . The device according to  claim 33 , further comprising a device to work roll bending independent of rolling force to influence the flatness. 
     
     
         40 . The device according to  claim 33 , further comprising three systems to measure the flatness of the strip. 
     
     
         41 . The device according to  claim 33 , further comprising operating trials which are used by a contactless SI-Flat System which is based on the evaluation of a local amplitude of oscillation. 
     
     
         42 . The device according to  claim 33 , wherein a width range of the resulting metal strip is 400 to 1600 mm.