Recyclable core mold for forming composite part with complex structure

Abstract

The present invention provides a recyclable core mold for forming a composite part with a complex structure. The recyclable core mold is characterized in that the recyclable core mold is made of a thermoplastic carbon fiber composite and has a heating softening performance; if the recyclable core mold is used for a curing process of a thermosetting carbon fiber composite prepreg formed by a vacuum bag curing process, demolding may be performed by utilizing the heating softening performance after part curing is finished. By adopting the recyclable core mold, the problem that the core mold is difficult to demold after a part with a complex cavity appearance is cured can be solved, the production cost and the production difficulty of the carbon fiber composite part with the complex appearance are reduced based on the recycling performance of the recyclable core mold, and the production efficiency is increased.

Description

technical field [0001] The invention relates to a recyclable core mold for forming carbon fiber composite parts. The core mold technology can be used to manufacture carbon fiber composite parts with complex structures or complex inner cavities, and belongs to the field of carbon fiber composite manufacturing. Background technique [0002] Carbon fiber composite materials have the characteristics of high strength and light weight. Most carbon fiber composite materials use epoxy resin as the matrix material of composite materials. Epoxy resin is generally liquid and becomes hard after curing. For some composite parts with complex cavities, it is necessary to use the internal mandrel to assist in forming the complex cavity during molding. Since the composite material becomes hard after curing, the internal mandrel will have the problem that it cannot be demolded. [0003] In response to this problem, a series of mandrel technologies including water-soluble, hot-melt, metal comb...

AI Technical Summary

Problems solved by technology

[0010] In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a reusable recyclable mandrel for molding carbon fiber composite parts, which can be used at a lower cost, with higher molding precision, and better Excellent reusability and parts adaptability, solve the problem that the internal mandrel is difficult to remove after the carbon fiber composite parts with complex cavity characteristics are cured, and realize the manufacture of composite parts

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