METHOD FOR MANUFACTURING WINDMILL BLADE

摘要

A method for manufacturing a wind turbine blade which is at least partially formed of fiber-reinforced plastic, the method including: a fiber drawing step of drawing a plurality of fiber bundles each made of reinforcement fiber from a plurality of bobbins, respectively; a reinforcement fiber sheet formation step of arranging the plurality of fiber bundles drawn from the bobbins next to one another and opening the plurality of fiber bundles so as to overlap adjacent two of the fiber bundles and form a reinforcement fiber sheet from the plurality of fiber bundles; a resin-impregnated fiber sheet formation step of impregnating the reinforcement fiber sheet with a thermohardening resin which is solventless and in a liquid form so as to form a resin-impregnated fiber sheet including the reinforcement fiber and the uncured thermohardening resin; and a molding step of arranging on a mold the resin-impregnated fiber sheet in such a state that the thermohardening resin is uncured and then thermally curing the thermohardening resin of the resin-impregnated fiber sheet on the mold so as to mold the wind turbine blade.