| 摘要 |
A heating rotating body includes: a rotating body that generates heat due to electromagnetic induction in a magnetic field and whose magnetic permeability starts to decrease continuously from a magnetic permeability change start temperature that is in a temperature region that is greater than or equal to a set temperature and less than or equal to a heat-resistant temperature, and an eddy current cutting-off structure that is formed on the rotating body and cuts-off a portion of eddy current generated by the electromagnetic induction.
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