| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for removing a metal core, not requiring a washing process or the like for a molded article and capable of easily obtaining a desired molded article by a lost core molding method. SOLUTION: The molded article M, in which the metal core C comprising a metal with a low melting point is enclosed, is arranged in a booth 11 held to an atmosphere, which is heated to a state capable of liquating out the metal with the low melting point, along with an induction heater 12 and the metal with the low melting point is melted and removed while supplying hot air to the surface of the molded article M from a hot air nozzle 13 so as to prevent the adhesion of the molten metal with the low melting point to the surface of the molded article M.
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