Process for the production of a metallic strip or sheet

A method for producing a metallic strip or sheet (1), in which the strip or sheet is rolled in a multi-stand rolling mill (11) and is discharged in the conveying direction (F) behind the last roll stand (14) of the rolling mill (11), wherein the strip or sheet (1) is cooled in the multi-stand rolling mill (11) and/or downstream of the rolling mill (11) as viewed in conveying direction (F), wherein a temperature (T2) of the strip or sheet (1) is measured upstream of the last roll stand (14) of the rolling mill (11) as viewed in the conveying direction (F),

• characterized by the steps:
• (i) calculating a temperature (TFM) for the strip or sheet (1) immediately at the exit (A) of the last roll stand (14) of the rolling mill (11) by means of a temperature calculation model on the basis of the temperature (T2) of the strip or sheet (1) measured upstream of the last roll stand (14) of the rolling mill (11), wherein said calculating step is carried out for a system formed by the material section of the strip or sheet (1) between the point at which the temperature (T2) is measured upstream of the last roll stand (14), and the exit (A) of the last roll stand (14),
• (ii) comparing the temperature (TFM) calculated for the strip or sheet (1) at the exit (A) of the last roll stand (14) of the rolling mill (11) with a predetermined reference value (TFMref), and
• (iii) adjusting (controlling, preferably Rules) at least one process parameter for the strip or sheet (1), taking into—account the comparison of the calculated temperature (TFM) with the predetermined reference—value (TFM ref) according to step (ii), wherein, depending this process parameter the strip or sheet is processed, heated or cooled.