MANUFACTURING METHOD FRP TUBE OF BUSHING AND FRP TUBE THEREBY

摘要

PURPOSE: A manufacturing method of the FRP(fiberglass reinforced plastics) tube for a bushing and a FRP tube using the same are provided to improve internal pressure and bending characteristics by winding a filament at a multi-winding angle. CONSTITUTION: A manufacturing method of the FRP(fiberglass reinforced plastics) tube for a bushing comprises the following steps. A releasing treatment about a mandrel(10) is enforced. A linear layer(100) is formed in the upper layer of the mandrel. A filament(210) impregnated with resin is wound in the upper layer of the linear layer at multi-winding angle. The filament is hardened. The filament is separated from the mandrel. The linear layer is made of at least one among a polyester film, a C-glass mat and a polymer resin.