Patent ID: 11858020
Assignee: SMS GROUP GMBH
Field: Machine tools (Mechanical engineering)
Classification: CPC B  C | IPC B

Claim 0:
1. A method for producing a metallic strip or sheet, in which the metallic strip or sheet is rolled in a multi-stand rolling mill and is discharged in a conveying direction behind a last roll stand of the multi-stand rolling mill, wherein the metallic strip or sheet is cooled in the multi-stand rolling mill and/or downstream of the multi-stand rolling mill as viewed in the conveying direction, wherein a temperature (T2) of the metallic strip or sheet is measured upstream of the last roll stand of the multi-stand rolling mill as viewed in the conveying direction, the method comprising the steps of:
(i) calculating a temperature (TFM) for the metallic strip or sheet immediately at an exit of the last roll stand of the multi-stand rolling mill by means of a temperature calculation model on a basis of the temperature (T2) of the metallic strip or sheet measured upstream of the last roll stand of the multi-stand rolling mill, wherein said calculating a temperature (TFM) step is carried out for a system formed by a material section of the metallic strip or sheet between a point at which the temperature (T2) is measured upstream of the last roll stand, and the exit of the last roll stand,
(ii) comparing the temperature (TFM) calculated for the metallic strip or sheet at the exit of the last roll stand of the multi-stand rolling mill with a predetermined reference value (TFMref), and
(iii) adjusting at least one process parameter for the metallic strip or sheet, taking into account a comparison of the calculated temperature (TFM) with the predetermined reference value (TFMref) according to step (ii), wherein, depending on the at least one process parameter, the metallic strip or sheet is processed, heated or cooled.