| 摘要 |
PROBLEM TO BE SOLVED: To provide an efficient manufacturing method of a long fiber reinforced thermoplastic resin structure due to a different kind of fibers which appropriately enables the alteration of a mixing ratio and a fiber density and enables the omission of blending work using a blender or the like. SOLUTION: The fiber rovings of fiber bundles are opened by applying tension to the fiber rovings in a molten thermoplastic resin while drawing the fiber rovings and, after the opened fiber rovings are impregnated with the thermoplastic resin, they are cooled while regulating the fiber density thereof by a shaping die and formed into pellets of 3-50 mm by cutting to manufacture the long fiber reinforced thermoplastic resin structure. A plurality of the fiber bundles are impregnated at the same time and the respective fiber rovings are taken up from individual outlets. In the impregnation die, the opening width of the respective fibers is regulated to 5-40 mm. COPYRIGHT: (C)2006,JPO&NCIPI |
