METHOD OF MANUFACTURING FIBER REINFORCED PLASTIC

PROBLEM TO BE SOLVED: To provide a method of manufacturing fiber reinforced plastic in which simple equipment is used, resin impregnating property is raised only in an impregnation difficult portion, resin is made to impregnate in a whole preform completely finally, and outstanding quality fiber reinforced plastic can be obtained. SOLUTION: The method of manufacturing fiber reinforced plastic includes: arranging a fiber reinforced preform 1 in which a fiber areal weight is partially high or an impregnation difficult portion with a high consistency exists on a mold 2; sealing whole of the fiber reinforced preform 1 by a pack material 4; and impregnating a plastic 9a into the fiber reinforced preform 1 after depressurizing an inside of the pack material 4, wherein in a condition that expansion of the pack material 4 is inhibited by an expansion inhibition portion or a pressurization portion arranged at a portion containing the impregnation difficult portion of the fiber reinforced preform 1 and a part of the pack material 4 is pressurized from outside, the plastic 9a is pressurized and injected into the inside of the pack material 4 of the pressurization portion. COPYRIGHT: (C)2009,JPO&INPIT