METHOD FOR PRODUCING FIBER-REINFORCED THERMOPLASTIC RESIN-MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a fiber-reinforced thermoplastic resin-molded article which satisfies impregnability and productivity simultaneously, from which a molten resin does not flow out, and which has desired fiber weight content and is obtained at a low cost. ! SOLUTION: The method for producing the fiber-reinforced thermoplastic resin-molded article comprises the steps of: fibrillating a continuous reinforcing fiber and making the fibrillated fiber pass through a thermoplastic resin bath to impregnate the fibrillated fiber continuously with a thermoplastic resin; immersing the impregnated fiber in water by using a shaping roll to cool/solidify the thermoplastic resin and cutting the cooled/impregnated fiber to obtain a preliminary molding: setting the preliminary molding in a molding die having a heating mechanism and a cooling mechanism; heating the set preliminary molding to the temperature equal to or higher than the melting point of the thermoplastic resin while appl