| 摘要 |
<p>A power source device particularly for high-frequency induction heating generates a plurality of high-frequency electric powers of different frequencies which are supplied to the heating coil (1) of a high-frequency induction heating apparatus successively and repeatedly in time-division fashion at a very short period, to create a heating situation similar to multiple-frequency simultaneous heating, whereby the uniform quenching of an object to-be-treated having a complicated shape can be realised.</p> |
