| 摘要 |
PURPOSE:To prevent quality from deterioration and production speed from lowering by coating the surface of a core material with a low temp.-curable thermosetting resin, curing the coated surface by heating through a release film, feeding a reinforcing fiber impregnated with a relatively high temp. curable thermosetting resin around it and performing pultrusion. CONSTITUTION:A core material 1 is continuously transferred in the molding direction and the surface is coated with a low temp.-curable unsatd. polyester resin soln. 3 and 3'. Then, release films 5 and 5' are guided on the coated surface at an approximately same speed and they are adhered on the coated surface by utilizing tackiness of the coated surface to cover it. Successively, the unsatd. polyester resin soln. 3 and 3' are heated and cured through the release films 5 and 5' by irradiating it with far infrared rays from a far infrared rays heating apparatus 6 and 6'. A composite body with a bi-layered structure wherein the core material layer 13 and the thermosetting resin layer 14 formed aroung its outer peripheral face are strongly integrated, is formed thereby. |
