MOLDING DEVICE OF FIBER-REINFORCED COMPOSITE MATERIAL BY VARTM PROCESS AND MOLDING METHOD OF FIBER-REINFORCED COMPOSITE MATERIAL THEREBY

摘要

The present invention relates to a device for molding fiber-reinforced composite materials using a VARTM process and a molding method of fiber-reinforced composite materials using the same, wherein the device comprises: a bottom mold (10) having a plurality of perforations (11) on a lower part thereof; a vacuum bag film (20), joined by a sealant (30) to an upper end of the bottom mold (10) and having a resin inlet port (40) at an upper part thereof; an empty space installed at a lower end of the bottom mold; and a vacuum gate (60) installed in the central area of a lower end of the empty space (50). According to the present invention, a liquid epoxy resin is injected through the resin inlet port (40) into the mold to be sucked through the perforations (11) when the vacuum gate (60) is in a vacuum so that a fiber structure (A) is impregnated in the liquid epoxy resin. The present invention can vertically impregnate the fiber structure (free form) with the liquid resin, thereby allowing the impregnation to be performed rapidly, can prevent the generation of air bubbles inside the molded composite material and can further reduce and simplify facilities and processes for molding.