Brevet : EP2116313 - DISPOSITIF ET PROCÉDÉ POUR REFROIDIR UNE BANDE D'ACIER LAMINÉE À CHAUD

Titre

DISPOSITIF ET PROCÉDÉ POUR REFROIDIR UNE BANDE D'ACIER LAMINÉE À CHAUD

N° et date de publication de la demande

EP2116313 - 11/11/2009

Type de la demande

A1

N° et date de dépôt

EP08703516.8 - 15/01/2008

N° et date de priorité

JP2007044868 - 26/02/2007

Famille de brevets

JP2008207200A ; EP2116313A1 ; CN101622083A ; CA2679695A1 ; US2010024505A1 ; PL2116313T3 ; AU2008230641A1 ; WO2008117552A1 ; TW200902178A ; KR20090101369A

Abrégé

A cooling device and a cooling method for a hot strip allow uniform and stable cooling of the strip at a high cooling rate when supplying the coolant to the upper surface of the hot strip. The cooling device includes an upper header unit 21 for supplying a rod-like flow to the upper surface of the strip 10. The upper header unit 21 is formed of the first upper header group including plural first upper headers 21a arranged in a conveying direction and a second upper header group including plural second upper headers 21b arranged in the conveying direction. The cooling device is provided with an ON-OFF mechanism 30 to allow each of the upper headers 21a and 21b of the first and the second upper header groups to independently execute the ON-OFF control (start/end injection control) of an injection (feeding) of the rod-like flow.