| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of an unimpregnated part and the occurrence of resin sinking by making the arrangement of a resin introduction part and a resin discharge part proper when a lengthy fiber-reinforced resin molding with an uneven cross section continues in the longitudinal direction is molded by an RTM method. SOLUTION: A molding jig 5 is formed, in which a mandrel (lower mold jig) 8 molding a concave shape and an upper mold jig 9 molding a convex shape are included, the resin discharge part (evacuation hole 10) is formed in the middle in the molding short hand direction of the mandrel 8, and the resin introduction part (resin introduction holes 9a and clearance 11) is formed on both side in the short hand direction of a cavity molding a molding. A large number of the resin introduction holes 9a are formed around the cavity, and the clearance 11 is formed continuously on the periphery. As an embodiment form using a bagging film in place of the upper mold jig 9 (Fig.3 and Fig.4), clearances 19L and 19R are extended on both sides in the longitudinal direction of the molding by clearance forming plates (17L, 17R, 18L, and 18R) to be made a resin introduction passage and a resin bank. COPYRIGHT: (C)2007,JPO&INPIT |
