| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a tandem extrusion molding machine which can sufficiently melt an inert fluid to a molding material with a simple constitution. <P>SOLUTION: The tandem extrusion molding machine 1 comprises a hopper 10a for supplying the molding material, a first extruder 2 connected with a gas supply line 11 for supplying an inert gas of a supercritical state, a second extruder 4 connected to the extruder 2 via a supplying or connecting unit 3, and an orifice 18 provided at an outlet 15 of the extruder 2 at the connecting unit 3 to regulate an extrusion quantity of the molding material to be extruded from the extruder 2 to the extruder 4. The machine 1 regulates the extruding quantity of the molding material to be extruded from the extruder 2 to the extruder 4 via the orifice 18 in kneading of the molding material with the inert gas in a cylinder 5 of the extruder 2 to thereby regulate a pressure in the cylinder 5. Thus, the gas can be suitably dissolved in the melted molding material. <P>COPYRIGHT: (C)2004,JPO</p> |
