| 摘要 |
PURPOSE:To enable to perform continuous bending molding easily at high speed without having disorder in fiber orientation, even in case of material whose fiber content being high, by a method wherein the bending molding is performed step by step by passing a molding material through a space between multi-stage molding rolls whose curvature radii have been reduced gradually while the same is being softened through heating up to the temperature directly below the thermal deformation temperature beforehand. CONSTITUTION:A strip material 10, which is a resin series composite material, is fed on a conveyor roller 1a, sent to a heating part 2 by a nipple roll 1b and heated up to the temperature in the vicinity of the deformation temperatures of respective molding materials by an infrared heater 2a. As for the strip material 10 softened by heating, bending molding is applied to the same gradually by multi-stage molding rolls 3a-3d while the same is being heated by an infrared heater 3e of a molding part 3, which is sent to a cooling part 4. As for the molding rolls 3a-3d, their curvature radii are being reduced gradually from the roll 3a to the roll 3d, which possess 90 deg. V-shaped angular shape processing surfaces possessing R1=R101mm, R2=R50mm, R3=R24mm and R4=R12mm. |
