ELECTRICAL HEATING DEVICE AND ELECTRICAL HEATING METHOD

摘要

An electrical heating device electrically heats a material to be heated by supplying an electric current flowing between a plurality of electrodes. The electrical heating device includes temperature detection means for detecting temperature information of a plurality of areas of the material to be heated, supplemental heating means for heating each of the plurality of areas of the material to be heated, and control means for controlling heating of the material to be heated. During the electrical heating, the control means controls, based on the temperature of each of the plurality of areas of the material to be heated detected by the temperature detection means, the supplemental heating means so that the supplemental heating means heats at least one area or all of areas having a temperature lower than the temperature of an area having a highest temperature among the plurality of areas.

主权项

1. An electrical heating device that electrically heats a material to be heated by bringing a plurality of electrodes into contact with the material to be heated with a predetermined distance between the electrodes and supplying an electric current flowing between the electrodes, comprising:
temperature detection means for detecting temperature information of a plurality of areas of the material to be heated; supplemental heating means for heating each of the plurality of areas of the material to be heated; and control means for controlling heating of the material to be heated, wherein during the electrical heating, the control means controls, based on the temperature of each of the plurality of areas of the material to be heated detected by the temperature detection means, the supplemental heating means so that the supplemental heating means heats at least one area or all of areas having a temperature lower than the temperature of an area having a highest temperature among the plurality of areas.