| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an induction heating coil with which even in the case of a disk-like member having thickness, the surface of the member can be uniformly hardened. <P>SOLUTION: The induction heating coil 1 which is provided to an induction heating apparatus and performs heat-treatment of a disk-like object 21 to be treated, includes: a heat-treatment part 11 for generating induction current at the object 21 and a conducting part 12 for supplying the electric current to the heat-treating part 11. Further, the heat-treatment part 11 has three or more lines of circular arc parts 15 each formed in a circular arc shape. Then, the three or more lines of the circular arc parts 15, are connected with the conducting parts 12 in parallel and/or in series. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
