Method of induction heating

Details Method of induction heating Method of induction heating

H - Electricity

05

B

H05B 6/02 (2006.01) H05B 6/14 (2006.01)

Patent

CA 2688075

During induction heating of a billet of an electrically conducting material by rotating the billet relative to a magnetic field that is generated by means of at least one direct-current-carrying superconducting winding on an iron core, the reverse- induction voltage can be reduced when a direct current is generated and maintained in the winding at a value that generates in the iron core at least in the region of the winding a magnetic flux density at which the relative permeability of the material of the iron core is less than in a zero-current state of the winding

Lors du chauffage par induction d'une billette en matériau électriquement conducteur par rotation de la billette (10) relativement à un champ magnétique généré par au moins un enroulement (60) supraconducteur traversé par un courant continu et disposé sur un noyau de fer (55.2, 55.3, 55.4), la tension d'induction en retour peut être réduite lorsque dans l'enroulement (60) un courant continu d'une valeur donnée est généré et maintenu, lequel courant continu génère dans le noyau de fer, au moins dans la zone de l'enroulement, une densité de flux magnétique telle que la perméabilité relative du matériau du noyau de fer est inférieure comparativement à lorsque l'enroulement est sans courant.

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