| 摘要 |
PURPOSE: To surely fusion-bond the inside thermoplastic resin layer to the outside fiber composite tubular body in fiber reinforced thermoplastic resin composite tube. CONSTITUTION: Longitudinally reinforced sheet-like fiber composite A1, which is prepared by fusion-bonding thermoplastic resin to longitudinally arranged continuous reinforcing fiber, is continuously formed into tubular body A2. Under the state that the formed tubular body A2 is advanced, thermoplastic resin B1 under molten state is extruded from an extruder along the inner surface of the tubular body A2 for lamination, and heated pressurizing air C is blasted in the inside of the thermoplastic resin layer B2 in order to form two-layered tube. The two-layered tube is advanced as it is so as to be guided in a cooling mold 13 in order to obtain fiber reinforced thermoplastic resin composite tube D after being cooled. |
