| 摘要 |
PURPOSE:To detach simply and easily an inside molding from a metallic frame body into which the molding to be heated is inserted in tight contact therewith by heating said metallic frame body by low-frequency induction current thereby expanding the same. CONSTITUTION:The molding A to be heated which is compressed and is molded under heating and is tightly fitted into the metallic frame body B is disposed into the round hole 7 of a heater 5 in a detaching device 1 consisting of a lower yoke 3 fitted to the center on a supporting base 2, a gate-shaped upper yoke 4 erected in the position above the lower yoke where the yokes face each other and a low-frequency induction heater 5 inserted between the yokes 3 and 4. Low- frequency AC of 50-60Hz is passed to the heater 5 and induction current is induced into the body B disposed therein. The body B expands by the effect of the Joule heat generated therein and forms a clearance between the molding A fitted tightly to the inside of said frame body so that the molding A is simply and easily separated and taken out of the body B.
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