Hybrid magnetic circuit superconducting induction heating device based on split iron core

Abstract

The invention discloses a hybrid magnetic circuit superconducting induction heating device based on a split iron core. The device comprises a magnetic conductive iron core, a superconducting coil arranged around the magnetic conductive iron core and a plurality of parallel iron yokes circumferentially distributed around the magnetic conductive iron core. The magnetic conductive iron core is composed of a plurality of sub iron cores formed by longitudinally cutting a columnar iron core; an upper concentrating flux plate is correspondingly arranged at an upper end of each sub iron core, and a lower concentrating flux plate is correspondingly arranged at a lower end of each sub iron core; the number of the iron yokes is equal to that of the sub iron cores, each iron yoke corresponds to one sub iron core, a first air gap is formed between an upper end face / lower end face of each iron yoke and a side wall of the upper concentrating flux plate of the upper end or a lower concentrating flux plate of the lower end of the corresponding sub iron core, and the first air gaps are used for containing workpieces to be machined. A to-be-heated workpiece can rotate under the action of external force to generate induced current to heat the to-be-machined workpiece. The hybrid magnetic circuit superconducting induction heating device based on the split type iron core is provided with the independent anti-interference magnetic circuit, and therefore, the better heating adjusting characteristic is achieved.

Description

technical field [0001] The present application relates to the technical field of superconducting electrical equipment, in particular to a hybrid magnetic circuit superconducting induction heating device based on a split iron core. Background technique [0002] Induction heating technology is widely used in industrial production such as forging penetration heating, surface quenching heating, medium and high frequency welding and induction melting. Applications in diathermy treatment include diameter expansion of steel pipes, billet hot forging, hot rolling of non-ferrous metals such as copper and aluminum; applications in industrial heat treatment include surface quenching, diathermy quenching, tempering and stress relief, annealing and normalizing, welding Seam annealing, powder metal sintering, etc.; welding applications include metal pipe welding, metal plate welding, etc.; induction heating applications in metal smelting include ferrous metals, non-ferrous metals smelting...

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Problems solved by technology

[0009] In view of this, the embodiment of the present application provides a method for solving the problem that the superconducting induction heating technology can only heat a limited one or two workpieces at the same time, and the utilization rate of the superconducting magnet is low.

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