Method for operating a pre-strip cooler in a hot strip mill, hot strip mill having a pre-strip cooler arranged between a pre-rolling mill and a finish-rolling mill

Abstract

The present invention discloses a method for operating a pre-strip cooler (20) in a hot strip mill (100) for producing a hot strip (60), wherein the method comprises the following method steps: - pre-rolling (S1) the metal rolling stock (40) by means of a pre-rolling mill (10) to form a pre-strip (50); - cooling (S2) the pre-strip (50) by means of the pre-strip cooler (20); - finish-rolling (S3) the cooled pre-strip (50) to form a hot strip (60) by means of a finish-rolling mill (60), wherein the method is characterised in that the cooling (S2) of the pre-strip (50) is controlled or regulated by means of the pre-strip cooler (20) in such a way that the pre-strip (50) output from the pre-strip cooler (20) has a temperature distribution along the longitudinal extent (L) of the pre-strip such that a front portion (51) of the pre-strip (50) has a lower temperature than a rear portion (52) of the pre-strip (50). The present invention further discloses a computer program product and a hot strip mill (100) for producing a hot strip (60).

Images