| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a high-frequency induction hearting technique, by which a material to be heated can efficiently be heated up and the collect of a heating coil becomes unnecessary and the setting and the removing works of the equipment used therefor are comparatively easy. SOLUTION: The heating coil 13 provided by winding a nicrhome wire 10 fitted with plural ceramic rings 11 linked together in a form of Buddhist rosary on the outer peripherary of a material 12 to be heated is formed. Further, the outer peripheral surface of the material 12 to be heated, disposed with the heating oil 13 is covered with a heat insulating material 14 and output cables 16, and 17 of a high-frequency electric source 15 for supplying the high-frequency current, are connected with the heating coil 13.</p> |
