White bar aramid fiber paper honeycomb core stretching and unfolding method

Abstract

The invention belongs to the field of aircraft composite material manufacturing, and discloses a white bar aramid fiber paper honeycomb core stretching and unfolding method. Four L proximate matters and a plurality of contact pins are used, and manpower is used for evenly stretching and unfolding honeycomb cores. It can be guaranteed that the white bar aramid fiber paper honeycomb cores for hook face honeycomb interlayer parts on an airplane are evenly stretched and unfolded, implementation is convenient, the adaptability is wide, cost is low, and the method is suitable for small-batch hook face honeycomb interlayer part production.

Description

technical field [0001] The invention belongs to the field of aircraft composite material manufacturing, and relates to a method for solving the problem of stretching and unfolding a white aramid paper honeycomb core. Background technique [0002] Aramid honeycomb core is light in weight, high in strength, flame retardant, and good in dielectric properties. As a special sandwich material, its application in aviation, transportation, construction and other fields is gradually expanding. After development, the manufacturing process of honeycomb core has been finalized as glue coating, hot pressing, trimming, stretching, dipping, curing, and slice cutting. The dipping process of the stretched white honeycomb core determines the density distribution and color uniformity of the honeycomb after curing, which is very critical. At the same time, the dipping equipment determines the operation process. The high performance requirements of the plant lead to high costs after the honeyco...

AI Technical Summary

Problems solved by technology

The dipping process of the stretched white honeycomb core determines the density distribution and color uniformity of the honeycomb after curing, which is very critical. At the same time, the dipping equipment determines the operation process. High requirements on plant performance lead to high cost of honeycomb core after dipping

The processes of gluing, hot pressing, trimming, and slice cutting can be carried out in professional manufacturers of honeycomb cores, but it is difficult for professional manufacturers of curved aramid paper honeycomb cores to perform stretching, dipping and curing.

In the small-batch production mode of curved surface sandwich honeycomb parts in the factory, the cost of investing in honeycomb core stretching machines and dipping equipment is extremely high

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