Honeycomb carbon fiber energy absorber and its manufacturing method and manufacturing equipment

Abstract

The invention discloses a cellular carbon fiber energy absorber comprising a plurality of corrugated sheets bonded by using an adhesive and forming a cellular shape, wherein the corrugated sheets are obtained by molding carbon fiber cloth impregnated with resin. The invention also discloses a method for manufacturing the cellular carbon fiber energy absorber. The method comprises the steps that: the carbon fiber cloth is delivered into a resin transfer molding apparatus; the carbon fiber cloth is molded into corrugated sheets; and the corrugated sheets are delivered into a cellular molding apparatus, and are assembled into the cellular carbon fiber energy absorber. The invention also discloses equipment used for manufacturing the cellular carbon fiber energy absorber. The equipment comprises: a feeding apparatus used for delivering the carbon fiber cloth to the resin transfer molding apparatus; a resin transfer molding apparatus used for impregnating resin into the carbon fiber cloth and for molding the carbon fiber cloth; an auxiliary molding press roller used for pressing and rolling the carbon fiber cloth into corrugated shapes; and a cellular molding apparatus used for assembling the plurality of corrugated sheets into the cellular carbon fiber energy absorber. The cellular carbon fiber energy absorber provided by the invention has the advantages of small volume, light weight, high energy absorption efficiency, and good consistency.

Description

【Technical field】 [0001] The invention relates to an energy absorber, in particular to a honeycomb carbon fiber energy absorber and its manufacturing method and manufacturing equipment. 【Background technique】 [0002] In the fields of rail transit vehicles and aerospace, the passive safety protection of cellular energy absorbers is playing an increasingly important role. The base material used in the honeycomb energy absorber is mainly aluminum foil, and the processing technology mainly includes stretching method and forming method. [0003] The specific steps of the stretching method include: (1) applying glue on the prepared metal foil strips; (2) stacking the multi-layer foil strips and bonding them together; (3) bonding the honeycomb laminated together The laminates are stretched to form the desired metal honeycomb. [0004] Another relatively common metal honeycomb processing technology is the traditional forming method. Its specific steps include: (1) The metal foil ...

AI Technical Summary

Problems solved by technology

[0005] Because the material used is metal such as aluminum foil, the traditional honeycomb energy absorber not only has low energy absorption efficiency, but also has a large volume and weight

[0006] In addition, the consistency of the honeycomb energy absorber manufactured by the traditional stretching method is poor, and it is difficult to process metals with high strength and high density.

There is a problem that the forming rule is not easy to realize automation, resulting in high production cost

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