| 摘要 |
PURPOSE: An injection molding method is provided to improve work efficiency by separating a gate from a product before resin in a chamber is solidified. CONSTITUTION: An injection molding method is as follows. A chamber(C1) and a cavity(C2) of a gate core(21) of upper and lower molds(24,23) are filled with melted resin. Before the melted resin is solidified, a flow path between the chamber and the cavity is closed by powering a cutter core(22). The upper and lower molds are cooled. An inner molded material is extruded from the cavity by separating the upper and lower molds.
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