| 摘要 |
PROBLEM TO BE SOLVED: To heat a cylindrical material to be heated uniformly in both the thickness and axial directions. SOLUTION: The vulcanization molding apparatus 10 is equipped with the inside mold 20 and the outside mold 40. On the outer peripheral surface 27 of the inside mold 20 there attached is a member to be heated 30 that is molded into a cylindrical shape. The outside mold 40 has an almost cylindrical holding chamber and is equipped, along its inner peripheral surface, with a cylindrical electrode material 65. In the inside of the electrode member 60, placed is the inside mold 20 that is mounted with the heated member 30. The rubber jacket 43 of the outside mold 40 presses the heated member 30 through the electrode member 60 by a pressing medium. A high-frequency voltage is applied between the electrode material 65 and the inside mold 20 to heat the heated member 30 by high-frequency dielectric heating. In the hollow part 28 of the inside mold 20, a heating medium is supplied to heat the heated member 30. The auxiliary heating apparatus 90 is installed so as to surround the periphery of the outside mold 40, and the heating of the heated member 30 is conducted also by the auxiliary heating apparatus 90. COPYRIGHT: (C)2008,JPO&INPIT
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