| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat treatment apparatus for deformed work with which the hardened layer in the deformed work, such as of plate cam, can further uniformly be formed. SOLUTION: The heat treatment apparatus is used for applying heat treatment to the plate cam W as the deformed work having an outer peripheral surface WG as a surface necessary to be heat-treated and a heat treatment side surfaces WS continuous from the above surface to be heat-treated, and the apparatus is provided with a high-frequency heating coil 100 heating the outer peripheral surface WG of the plate cam W and pad plates 210, 210 for heat radiation pressed against both side surfaces WS, WS when the plate cam W is heated. The shape of the outer periphery of the pad plate 210 for heat radiation is formed as a similar figure of the outer periphery of the plate cam W, namely, a reduced shape thereof, and the pad plate 210 for heat radiation is pressed so that the outer periphery of the pad plate 210 for heat radiation is positioned at a position of the side surface WS of the plate cam W where the outer periphery is reduced.</p> |
