Honeycomb core depression compensation method

Abstract

The invention relates to a honeycomb core depression compensation method, wherein a honeycomb core, a lower panel, a first adhesive film, a check layer, a first non-porous isolation film, a fourth adhesive film, a second non-porous isolation film, an upper panel, a second adhesive film, a compensation layer, a second adhesive film, a prepreg and a third adhesive film, are included. The honeycomb core depression compensation method has the advantages that the bonding effect between the honeycomb core and each film layer is better, and debonding positions are fewer; the tensile strength and theshearing strength are obviously improved; and the surface depression depth is smaller, the problem that a pneumatic surface is depressed is effectively solved, and the depression depth is controlled within an effective error.

Description

technical field [0001] The invention relates to a honeycomb core sag compensation method, which belongs to the technical field of carbon fiber plate production. Background technique [0002] Honeycomb core is a low-density honeycomb material used as a core material for sandwich structures; the main honeycomb core materials are aluminum alloy, glass fiber fabric impregnated with resin, aromatic fiber paper, kraft paper, graphite fiber and Kevlar Fiber, etc.; its performance depends on the material, cell shape and size, etc.; honeycomb core is widely used in various aerospace equipment; [0003] In the practical application of honeycomb core, the problem of collapse of the honeycomb sandwich structure often occurs, resulting in aerodynamic depression on the surface of the honeycomb core. There are many reasons for these problems, the main reason is the problem of the manufacturing process of the honeycomb core. When the sunken area is compensated, only a single prepreg is use...

AI Technical Summary

Problems solved by technology

[0003] In the practical application of honeycomb core, the problem of collapse of the honeycomb sandwich structure often occurs, resulting in aerodynamic depression on the surface of the honeycomb core. There are many reasons for these problems, the main reason is the problem of the manufacturing process of the honeycomb core. When the sunken area is compensated, only a single prepreg is used for compensation, and the honeycomb core produced has a deep sunken area, which cannot meet higher requirements for use.

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