| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus and a method for manufacturing a resin molding capable of completely dissolving a high-pressure gas in a powder particle thermoplastic resin within a residence time of a molding machine, easily fluidizing and low- temperature molding a resin difficult to be melt extruded with a high melt viscosity or molding retardant resin easy to be thermally decomposed or manufacturing a foamed material. SOLUTION: The apparatus 1 for manufacturing a thermoplastic resin molding comprises a molding machine 11 having a screw 112 arranged in a cylinder 111, a raw material supply unit 12, a highpressure gas supply unit 13, a mold 14 connected to the machine, a supply region 1A for transporting the powder particle resin composition to a downstream of the machine, a means 131 provided at a volume increasing part of the downstream side of the region 1A to fill the gas in the resin composition, an oppressing region 1B for mixing the resin composition with the gas to densify the mixture, a metering region 1C for metering a mixture of the densified mixture of the resin composition and the gas, and a substantially impermeable closed region 1D formed between the material supply unit and the supply region of the machine for passage of the gas. In this case, a screw bearing 15 of the machine is formed in a pressure-resistant sealing structure. |
