Device for influencing the widthwise temperature distribution

B - Operations – Transporting – 21 – B

Patent

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Details

B21B 37/72 (2006.01) B21B 37/44 (2006.01)

Patent

CA 2679336

The invention pertains to a device for influencing the temperature distribution over the width of a slab or a strip, particularly in hot strip rolling mill, wherein at least one cooling device is provided that features nozzles for applying a cooling medium, wherein the nozzles are arranged and/or actuated in such a way that the cooling medium is applied, in particular, at positions at which an elevated temperature is determined. The invention furthermore pertains to a device for influencing the state of the surface evenness of the strip by means of strip cooling, wherein the cooling device is controlled in dependence on the state of surface evenness of the strip in such a way that the surface unevenness is reduced or eliminated. In addition, this invention makes it possible to purposefully influence the strip contour, wherein the strip or the slab is cooled widthwise in such a way that the strip contour approximates a desired target contour more closely.

L'invention concerne un dispositif (10) permettant d'influer sur la température sur la largeur d'un produit laminé ou d'un feuillard (11) ou d'une brame, notamment dans un train de feuillards laminés à chaud. Il est prévu au moins un dispositif de refroidissement muni d'ajutages (14) pour appliquer un agent de refroidissement, les ajutages (14) étant disposés ou régulés notamment de sorte qu'un agent de refroidissement soit appliqué aux positions où une température plus élevée est détectée. L'invention concerne en outre un dispositif (10) pour influer sur l'état de planéité des feuillards, par refroidissement des feuillards. Le dispositif de refroidissement est régulé en fonction de l'état de planéité du feuillard, de sorte que les zones de non planéité soient réduites ou éliminées. L'invention permet par ailleurs d'influer sur le contour des feuillards, le feuillard (11) ou la brame concerné(e) étant refroidi(e) sur sa largeur, de sorte que le contour du feuillard se rapproche d'un contour cible voulu.

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