| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor core heating device capable of heating the inside of a rotor core with certainty.SOLUTION: A rotor core heating device 100 performing high-frequency heating of an inner peripheral side surface and an outer peripheral side surface of a rotor core 50 formed in a hollow columnar shape by using an inner diameter coil 110 and an outer diameter coil 120, comprises a magnetic flux shield jig 150 formed in the hollow columnar shape and arranged at one side in an axial direction of the rotor core 50. On the magnetic flux shield jig 150, a plurality of penetration holes 170 penetrating in the axial direction are formed. |
