| 摘要 |
PURPOSE:To mold easily and swiftly a product in a thinned state by providing a heating layer on either one side mold surface of a stationary side or movable side molds facing on a cavity. CONSTITUTION:A heating layer 20 is provided on the surface of either of a movable side mold 3 or a stationary side mold 4, for example, the mold 3 confronting on a cavity 5 demarcated and formed with the movable side and stationary side molds 3, 4 and an electric heating unit 20a is kept formed in a filmy state in the heating layer 20. Then at the time when thermoplastic resin is filled out into the cavity 5, the electric heating unit 20a is electrified and molten resin 8 is heated. Therefore the molten resin 8 is spread over sufficiently to every nook and corner of the cavity 5 without being solidified in the midst of spreading. Therefore, molding can be performed easily in a short period of time even if a molded product is of an extremely thin one. |
