| 摘要 |
PROBLEM TO BE SOLVED: To obtain a molded product having high dimensional precision by preventing the resin scorch of a material in molding requiring time in dwelling process and a cooling process. SOLUTION: A mold clamping device 20 for opening and closing a fixed mold 26 and a movable mold 27, a cavity 28 formed between the closed fixed mold 26 and the movable mold 27, a resin passage 29 provided to the fixed mold 26 so as to communicate with the cavity 28 and the injection device 1 connected to the resin passage 29 to feed a resin into the cavity 28 in a plastic state are used. When the resin in the resin passage 29 is cured to a degree preventing the leak of the resin in an anti-injection direction from the fixed mold 26 after an injection process, the connection of the resin passage 29 and the injection device 1 is released and, after the resin in the injection device 1 is discharged in the plastic state, a metering process is performed before a mold opening process. Since the resin is discharged before a next injection process after the injection process, even if the dwelling process and the cooling process take a long time, the resin in the plastic state before injection is not exposed to a long-time high temperature state and the molded product of stable quality can be obtained. COPYRIGHT: (C)2006,JPO&NCIPI
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