Electromagnetic braking device for molten steel that flows...

Details Electromagnetic braking device for molten steel that flows... Electromagnetic braking device for molten steel that flows...

B - Operations, Transporting

22

D

B22D 11/115 (2006.01)

Patent

CA 2495362

The invention relates to an electromagnetic braking device for molten steel that flows into a continuous casting mould (1). Said device comprises at least one solenoid (2) with a ferromagnetic core (5) that is allocated to the broad sides (3, 4) of the mould. To reduce the oscillating mass and at the same time increase the strength of the magnetic field, the core (5) consists of a primary part (6) that houses the solenoid (2) and can be displaced at a distance from the broad side walls (3, 4) and attachments (8, 8') that are fixed in water tanks (7, 7') of the mould (1). When combined in their operating position, the core parts (6, 8) produce U-shaped yokes (9, 9') for generating a closed magnetic flux (10) and when moved apart, cause the magnetic flux (10) to be interrupted.

L'invention concerne un dispositif de freinage électromagnétique destiné à freiner une charge d'acier liquide s'écoulant dans une coquille (1) de coulée continue. Ce dispositif comprend au moins une bobine magnétique (2) pourvue d'un noyau (5) ferromagnétique pouvant être associé aux côtés larges (3, 4) de la coquille (1). Selon l'invention, pour réduire les masses oscillantes et augmenter en même temps l'intensité du champ magnétique, le noyau (5) comprend un élément principal (6) dans lequel est logée la bobine magnétique (2) et qui peut être déplacé à distance des parois des côtés larges (3, 4), ainsi que des éléments auxiliaires (8, 8') disposés de manière fixe dans des réservoirs d'eau (7, 7') de la coquille (1). Lorsqu'ils sont combinés, les éléments (6, 8) du noyau forment des culasses (9, 9') en forme de U servant à produire un flux magnétique (10) fermé, lequel est interrompu lorsque lesdits éléments sont séparés.

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