| 摘要 |
PURPOSE:To prevent the irregularity in the impregnation density of molten resin and causing the scattering in the quality of finished products by a method wherein, at the time when a fiber bundle is impregnated with molten resin, at least one side of the fiber bundle is inclined by a preset angle with regard to the straight line passing through the center-line of a rod, thus making the fiber bundle entwine around the rod. CONSTITUTION:A preheating part 11 part forms a preheating region for the purpose of heating a fiber bundle F and is impregnated with molten resin, and the heating part 12 is provided at the periphery thereof. The length and the temp. of said preheating part 11 are determined in the way that the affinity of molten resin with the fiber bundle F is improved in accordance with the passing speed of the fiber bundle. At the impregnation part 13, rods 14 (14a-14e) are arranged for the purpose of opening and scattering along the advancing direction of the fiber bundle F in a straight manner while said bundle F is entwined around the group of rods in a zigzag fashion. At least, one side of the fiber bundle F forms an inclination with respect to a straight line by a preset angle alpha e.g. 10 degrees or more, and if possible, 20 degrees or more. |
