Method for continuous casting and rolling with at increased...

Details Method for continuous casting and rolling with at increased... Method for continuous casting and rolling with at increased...

B - Operations, Transporting

21

B

B21B 1/46 (2006.01) B21B 37/74 (2006.01)

Patent

CA 2636305

The invention relates to a method for continuous casting and rolling with a high casting rate and subsequent hot-rolling of relatively thin metal strands, especially steel strands (1), the target temperatures (6) of the hot strip (2) being pre-defined. Said method enables temperature losses on the hot strip (2) to be reduced by increasing the temperatures of the work rolls (4) with a pre- determined rate of increase starting from a low initial temperature (5), and by adjusting the temperature (15) of the strip to a target roll temperature (6) of the hot strip (2) and/or by regulating or controlling the intensity of the roll cooling (18).

L'invention concerne un procédé de laminage de coulée continue à vitesse de coulée augmentée et laminage à chaud consécutif de barres de métal relativement fines (1), notamment de matériau d'acier, les températures cibles (6) de la bande à chaud (2) étant prédéfinies. Ledit procédé permet de réduire les pertes de température sur la bande à chaud (2) du fait que les températures des cylindres de travail (4) sont augmentées avec un taux d'augmentation prédéfini à partir d'une température initiale basse (5), et la température de bande (15) est réglée à une température de cylindre cible (6) de la bande à chaud (2) et/ou par régulation ou commande de l'intensité du refroidissement de cylindre (18).

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