| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an injected/foamed molding in a conventional injection molding machine in which a screw of a conventional length and the cylinder of a conventional molding machine are used, and the screw needing complex working and a screw fitting part are not changed with respect to the problem that a screw becomes longer in the conventional technique of physical foaming. <P>SOLUTION: In a molding apparatus, in each process of a melting process for melting a supplied thermoplastic material and a gas dissolution process for kneading/dissolving a foaming gas by supplying the gas to the molten thermoplastic resin, a two-stage compression screw 2 having compression parts L2 and L5 is used. In the molding apparatus for a thermoplastic resin molding, the flight interval L7 of the screw is 0.5-0.9 times the diameter Ds of the screw. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
