| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an induction heating coil with which an outer circumferential surface and one end surface of a cylindrical workpiece (material to be heated) can simultaneously and uniformly be induction-heated. <P>SOLUTION: The induction heating coil 10 is provided with a ring-like outer circumferential surface induction heating coil 20, disposed so as to surround the outer circumferential surface WS of the workpiece W and the outer circumferential surface induction heating coil 20 induction-heats the outer circumferential surface WS. Further, the induction heating coil 10 is provided with a one end surface induction heating coil 30 disposed above and close to the one end surface WT of the workpiece W to be heated, and the one end surface induction heating coil 30 has disk shape whose a part is cut off to a fan-shape. The one end surface induction heating coil 30 is fixed to the outer circumferential surface induction heating coil 20 so as to cover the one end surface 20T of the outer circumferential surface induction heating coil 20 and a space surrounding by the one end surface 20T of the outer circumferential surface induction-heating coil 20. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
