Method for continuous casting

B - Operations – Transporting – 22 – D

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B22D 11/06 (2006.01) B22D 11/16 (2006.01)

Patent

CA 2468319

The invention relates to a method for the continuous casting of a thin metal strip (1) in a two-cylinder method. According to the method, metal melt (7) is introduced into a casting gap (3) formed by two casting cylinders (2) corresponding to the thickness of the metal strip (1) which is to be cast, forming a melting bath (6). In order to form a determined structure in the cast metal strip and/or influence the geometry of the metal strip, the continuous casting is carried out by an on-line calculation based on the calculating model describing the formation of the specific structure of the metal and/or the formation of the geometry of the metal strip. The structural formation or the variable of the strip continuous casting method influencing the geometry are adjusted dynamically on-line, i.e. during the casting process.

L'invention concerne un procédé de coulée continue d'un mince feuillard métallique (1) selon le procédé à deux rouleaux. Selon l'invention, la matière métallique en fusion (7) est introduite dans une fente de coulée (3) formée par deux rouleaux de coulée (2) et correspondant à l'épaisseur du feuillard métallique à couler (1), un bain de coulée (6) étant ainsi formé. Pour permettre d'obtenir une structure déterminée dans le feuillard métallique coulé et/ou d'influer sur la géométrie du feuillard métallique, la coulée continue est réalisée à l'aide d'un calcul en ligne sur la base d'un modèle de calcul décrivant la formation de la structure déterminée du métal et/ou la géométrie du feuillard métallique. Des variables du procédé de coulée continue influant sur la formation de la structure et sur la géométrie sont ajustées en ligne de manière dynamique, c'est-à-dire pendant la coulée en cours.

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