A method for the continuous casting of thin metal products,...

B - Operations – Transporting – 22 – D

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B22D 11/06 (2006.01)

Patent

CA 2260996

The invention relates to a method for continuously casting thin metal products, the method comprising the operations of pre-heating a pair of refractory plates (7) for the lateral containment of a bath of molten metal constituted of a pair of counter-rotating rolls (1, 2), and of abutting said pair of plates (7) towards each lateral surface of the ends of said pair of rolls (1, 2), characterised in that is comprises the operations of applying a controlled elastic or elastic/plastic deformation to said pair of plates (7) at the contacting arc between the surface of the plates (7) and the peripheral portion of the ends of said rolls (1, 2), and controlling said elastic and/or elastic-plastic deformation of said pair of plates (7) during the whole casting process, so as to minimize the surface wear of the plates (7) and of the ends of the rolls (1, 2), and to guarantee the maintainment of a predetermined distance between said rolls (1, 2) and said plates (7) lower than a predetermined value, and to minimize the occurrence of leaks of molten metal between said plates (7) and said end parts of said rolls (1, 2).

La présente invention concerne un procédé de moulage en continu de produits métalliques minces. Le procédé comprend les opérations de préchauffage d'une paire de plaques réfractaires (7) pour le confinement latéral d'un bain de métal en fusion. Le procédé comporte une paire de rouleaux contrarotatifs (1, 2) et consiste à abouter ladite paire de plaques (7) avec chaque surface latérale des extrémités de ladite paire de rouleaux (1, 2). Il est caractérisé en ce qu'il comprend les opérations d'application d'une déformation contrôlée élastique ou élastique/plastique à ladite paire de plaques (7) au niveau de l'arc de contact entre la surface des plaques (7) et la portion périphérique des extrémités desdits rouleaux (1, 2). On contrôle ladite déformation élastique et/ou élastique/plastique de ladite paire de plaques (7) durant tout le processus de moulage, afin de minimiser la surface de portance des plaques (7) et des extrémités des rouleaux (1, 2) et pour garantir le maintien d'une distance prédéterminée entre lesdits rouleaux (1, 2) et lesdites plaques (7) à une valeur inférieure à une certaine valeur prédéterminée et à minimiser l'apparition de fuites de métal en fusion entre lesdites plaques (7) et lesdites parties d'extrémité desdits rouleaux (1, 2).

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