| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding machine capable of quantitatively dissolving gas in a molten resin and capable of solving trouble of a gas seal. SOLUTION: The injection molding machine having an injection cylinder is equipped with a second stage type screw wherein a second stage constituted in the same way as a first stage constituted of a first feed part, a first compression part and a first metering part is connected in series and a gas feeder is connected to a second feed part and a flow rate control part is provided between the first metering part and the second feed part. In this injection molding machine, the lengths of the respective parts of the screw are specified with respect to a screw diameter (D). COPYRIGHT: (C)2004,JPO&NCIPI
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