| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a fiber-reinforced plastic tubular body having high strength, uniform thickness and an excellent exterior appearance, while styrene is prevented from being diffused during manufacturing. SOLUTION: The method for manufacturing the fiber-reinforced plastic tubular body is a vacuum injection molding method comprising the steps of: arranging a sheet-like reinforcing fibrous base material being an object to be impregnated on a cylindrical molding mold; laying a resin diffusing member for promoting the diffusion of a resin to be injected on the reinforcing fibrous base material while interposing a mold releasing agent between them; airtightly covering these reinforcing fibrous base material, mold releasing agent and resin diffusing member with a bagging film on the molding mold; and evacuating air in the bagging film and sucking/injecting the resin into the bagging film to impregnate the reinforcing fibrous base material with the injected resin. A laminate obtained by layering a fiber knitted/woven fabric, a granular material and a nonwoven fabric is used as the reinforcing fibrous base material. COPYRIGHT: (C)2009,JPO&INPIT |
