PREPARATION OF ROLL MADE OF FIBER-REINFORCED RESIN

摘要

PURPOSE:To provide a roll being lightweight and with improved dimensional accuracy and improved durability, to simplify.manufacturing process and to reduce manufacturing cost by a method wherein a fluid pressure is acted in an inner pressure holding body and an uncured fiber-reinforced resin layer is brought into tight contact with the inner face of an outer mold by the expanding pressure and then, the resin layer is cured. CONSTITUTION:An inner pressure holding body 3 and headers 4 on its both end parts are arranged outside of an inner mold 2. An uncured fiber-reinforced resin layer 5 is formed on the outside by means of a filament winding method. Then, the inner mold 2 is arranged inside of the outer mold 1. with a cylindrical inner face and the inner pressure holding body 3 is expanded by introducing air pressure into the inner pressure holding body 3. The uncured fiber-reinforced resin layer 5 is brought into tight contact with the outer mold 1 by the expanding pressure and the fiber-reinforced resin layer 5 is cured while this condition is kept. A fiber-reinforced resin roll wherein the headers 4 on both end parts are simultaneously molded is obtd.