| abstract |
Abstract: PROBLEM TO BE SOLVED: To provide a molding method of a composite resin product which does not require an external pressure applying device at the time of molding, enables mass production, and can efficiently produce a cylindrical product having stable dimensional accuracy, and a method therefor. It is to provide a device. SOLUTION: A molding apparatus 10 includes a pressure medium 13 in which a porous filter 11 for deaeration and a thermal expansion body 12 are integrally combined, a preform 14, and a preform 14 disposed in a mold. And a two-part mold 15 impregnated with a thermosetting resin or a thermoplastic resin containing volatile components. The molding apparatus 10 is an embodiment in which, when molding a composite resin product formed of a hollow cylindrical body, the outer surface of the preform 14 is in close contact with a mold 15 and is used as an external dimension standard. When the internal dimensions are based on the hollow portion, a metal mandrel 16 that fits into the hollow portion of the preform 14 is used. |