Permanent magnet recovery device and permanent magnet recovery method

Abstract

Provided are a permanent magnet recovery device and a permanent magnet recovery method capable of recovering, without degradation of permanent magnet properties, a permanent magnet attached to a laminated steel sheet, having an insulating film, via a resin material. A permanent magnet recovery device includes a heat-treating furnace that stores a permanent magnet holder in which permanent magnets are attached thereto, having insulating films, via a resin material and a high-frequency wave absorbent is provided at each end portion of the permanent magnet holder in a lamination direction of the laminated steel sheet so as to contact at least the resin material, and a microwave generator that emits microwaves into the heat-treating furnace. In this aspect, the permanent magnet holder is a predetermined rotating electrical machine rotor, and a high-frequency wave absorbent is further provided along an outer peripheral portion of the laminated steel sheet of the rotor.

Dependencies are inferred from the claim text.