Vacuum forming process for winding composite material

Abstract

The invention provides a vacuum forming process for winding a composite material, which greatly reduces waste on resin. The process comprises the following steps: (1) installing a manufactured core mould on a fiber winding machine, further installing dry fiber yarns to be wound on the winding machine, starting the winding machine to wind the dry fiber yarns, and winding according to a designed fiber trend and a paving manner; (2) after winding the dry fiber yarns, paving a vacuum guiding auxiliary material and a sealing layer outside a winding preform, sealing the core mould and the sealing layer, guiding in resin, stopping guidance after resin completely dips the winding preform, and adjusting the environmental temperature of the whole piece to cure the resin; and (3) after completely curing, removing the vacuum guiding auxiliary material and the sealing layer, and removing or reserving the core mould according to demand. The vacuum forming process for winding the composite material provided by the invention can greatly improve the defect that the product formed by conventional composite material winding process is high in content of resin, and the defect that the fiber resin is non-uniformly distributed.

Description

technical field [0001] The invention relates to a vacuum forming method, in particular to a composite material winding vacuum forming process. Background technique [0002] In the existing winding molding method of composite materials, the fibers are wound after being soaked in resin. Its disadvantages are: [0003] 1) After the fiber is soaked in the resin, the thickness is not uniform, and the size uniformity and surface smoothness of the wound product cannot be effectively guaranteed; [0004] 2) The resin on the fiber surface and the product surface is open in the work site, which is very easy to volatilize pollutants, and the working environment is extremely poor; [0005] 3) The resin content is high after the fiber is impregnated with resin, and the resin content is high and unevenly distributed after winding, resulting in poor product performance; [0006] 4) The resin hanging on the fiber has a large amount of resin dripping during the winding process, which is n...

AI Technical Summary

Problems solved by technology

[0003] 1) After the fiber is soaked in the resin, the thickness is not uniform, and the size uniformity and surface smoothness of the wound product cannot be effectively guaranteed;

[0004] 2) The resin on the fiber surface and the product surface is open in the work site, which is very easy to volatilize pollutants, and the working environment is extremely poor;

[0005] 3) The resin content is high after the fiber is impregnated with resin, and the resin content is high and unevenly distributed after winding, resulting in poor product performance;

[0006] 4) The resin left on the fiber has a large amount of resin dripping during the winding process, which is not only a serious waste, but also the on-site environment is extremely poor

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