The invention relates to the technical field of
wind driven generator blades, and particularly relates to a preparation method of a
Balsa wood core material of a
wind driven generator blade web. The preparation method comprises the steps of
slicing, accurate
grinding, dehumidification, double-end sawing treatment and gluing, and after pretreatment, shallow groove forming,
punching, cloth pasting,deep groove forming, finished
product inspection, template manufacturing, line drawing, edge
cutting, mark writing, chamfering, IPQC process inspection, plate separation, dehumidification, laying inspection and packaging and warehousing are sequentially conducted. According to shallow groove forming, a plurality of shallow grooves are formed in at least one surface of the core material and are staggered on the surface of the core material to be arranged in a rectangular grid shape, and through holes penetrating through the upper surface and the lower surface of the core material are punched inthe intersection points of the multiple shallow grooves. According to the preparation method, three times of
humidity detection are set, the
moisture absorption possibility of the core material in the preparation process is further reduced, the risk of
corrosion of
bacteria and the like sealed in the core material in the operation process is reduced, and therefore the defects of the
Balsa wood core material are effectively overcome.