| 摘要 |
PURPOSE:To enhance the coefficient of utilization of a resin without sacrifying the flow of the resin. CONSTITUTION:A gas passage 11 for sending gas into a mold hermetically closed from the outside is provided to a resin sealing mold 1 and a plunger head 3 and a resin 10 is injected into a cavity 8. Other wise, the bottom surface of a runner 6 is constituted of an up and down drivable runner part lower mold and, after the resin 10 is sent into the runner 6 by the plunger head 3, the runner part lower mold is raised to inject the resin 10 sent into the runner 6 into the cavity 8. |
