Transverse flux electric inductors

H - Electricity – 05 – B

Patent

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Details

H05B 6/44 (2006.01)

Patent

CA 2641846

An apparatus and process are provided for inductively heating a workpiece to a desired cross sectional temperature. At least one pair of coils form a transverse flux inductor. The workpiece is located between the pair of opposing coils, which are oriented across the cross section of the workpiece. Each coil comprises a plurality of coil sections. The distance between one or more opposing coil sections is adapted to achieve the desired cross sectional induction heating temperature profile in the workpiece. Alternatively the distance between all opposing coil sections are equidistant from each other, and one or more flux concentrators, moveable at least in a direction perpendicular to the surface of the workpiece, can be used to achieve the desired cross sectional induction heating temperature profile in the workpiece.

Dispositif et processus permettant de chauffer par induction une pièce jusqu'à obtention de la température recherchée dans le sens transversal. La pièce est disposée entre une paire de bobines opposées qui sont orientées transversalement par rapport à cette dernière. Chaque bobine d'induction comprend une pluralité de sections. La distance entre une ou plusieurs sections des bobines opposées est calculée pour atteindre dans la pièce par chauffage par induction le profil thermique transversal recherché. En variante, toutes les sections des bobines d'induction opposées sont équidistantes et un ou plusieurs concentrateurs de flux, pouvant se déplacer dans au moins une direction perpendiculaire à la section de la pièce, peuvent être utilisé pour atteindre par induction le profil thermique transversal dans la pièce.

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