Mold and method for manufacturing special-shaped composite material rotary body by using mold

Abstract

The invention provides a mold and a method for manufacturing a special-shaped and variable-cross-section composite material rotary body by using the mold, and belongs to the technical field of special-shaped variable-cross-section thin-wall rotary body manufacturing. The mold comprises a rotary body outer mold a and a rotary body outer mold b; the rotary body outer mold a and the rotary body outer mold b are detachably connected; a rotary body inner mold is arranged in a cavity formed after the rotary body outer mold a and the rotary body outer mold b are connected; and gaps are formed between the rotary body inner mold and the inner wall of the rotary body outer mold a and between the rotary body inner mold and the inner wall of the rotary body outer mold b. The special-shaped variable-cross-section thin-wall rotary body with the length-diameter ratio larger than 10 and the wall thickness smaller than 4 mm is manufactured through the mold. The large-length-diameter-ratio thin-wall special-shaped variable-cross-section composite material rotary body manufactured according to the invention has the advantages of being not prone to deformation, high in size precision, high in inner surface smoothness and outer surface smoothness, simple in subsequent surface treatment process and high in economical efficiency.

Description

technical field [0001] The invention relates to the technical field of manufacturing a special-shaped variable-section thin-walled rotary body, in particular to a mold and a method for manufacturing a special-shaped composite material rotary body using the mold. Background technique [0002] Large aspect ratio, thin-walled composite material revolving body, commonly used manufacturing methods in the industry include winding process and pultrusion process. [0003] The winding process is a continuous, uniform and regular winding of the continuous fiber bundle or cloth tape on the mandrel or inner lining under the condition of controlled tension and predetermined line type, using special winding equipment to impregnate the resin glue, and then It is a composite material molding method that solidifies under a certain temperature environment and becomes a product of a certain shape. The composite material rotor with large length-to-diameter ratio and thin wall produced by the w...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low longitudinal strength, low surface finish, high equipment investment cost and poor equipment versatility of winding process, low transverse strength of pultrusion process, low resin reserves, high equipment investment cost, and inability to produce special-shaped and variable-section products, Due to the technical problems of expensive equipment investment and high investment in process research and development such as autoclave forming and vacuum bag forming, the present invention proposes a mold, and proposes a method of using the mold to make a mold with a large aspect ratio, a thin wall, a special shape, and a variable cross-section. Technology of Composite Rotary Body

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