Mold And A Method Of Manufacturing Large Diameter FRP Flues

摘要

A mold and method is provided for manufacturing a large diameter fiber-reinforced plastic (FRP) cylinder. Longitudinal ends of a circumferential plate are connected with end plates. Central axes stick out at the center of the end plates. Both sides of the circumferential plate and in the radial directions are connected with inward flange plates. The inner side of the circumferential plate is equipped with a back plate that is connected with the end plates and the inward flange plates. Supporting beams are set between inner sides of the circumferential plate and the back plate. The method for manufacturing large diameter FRP cylinder includes the following procedures: (1) applying releasing wax on the external surfaces of circumferential plate and inward flange plate on the mold; covering polyester films, making the inner liner; continuously rotating the mold, wind reinforcing fibers around the entire mold external surfaces; and resins or composites are showered along the longitude; (2) curing; (3) mold unloading; (4) truing; and (5) finishing. This invention resolves the inconvenience and technical problems of transporting an entire piece of large diameter FRP cylinders, onsite winding and installations.