Production process and special mold for a hyperboloid honeycomb core board

Abstract

The invention provides a hyperboloid cellular core plate production technology and a special-purpose die. According to the invention, bonding intensity of a panel and a cellular core is increased, uniform bearing when the cellular core panel is subjected to thermo-compression formation is ensured, local collapse of the cellular core is not generated, the yield and quality of the product are increased, the production technology comprises the following steps: processing the surface of the panel and a base plate of the cellular core plate; coating a glued surface of the panel and the base plate with a primer; pasting the primer of the glued surface of the panel and the base plate with an adhesive; mutually applying the panel, the cellular core and the base plate with a sequence from up to down, and placing the materials in a male mould of a die, then placing an edge banding plate in the die, pressing a female mould on the upper surface of the panel; placing the material in a vacuum bag, vacuumizing the vacuum bag; performing solidification by heating a thermocouple, and demoulding the material to obtain the cellular core plate.

Description

technical field [0001] The invention relates to the technical field of honeycomb panels, in particular to a production process and a special mold for a hyperboloid honeycomb core panel. Background technique [0002] Honeycomb core panel is a structural form composed of high-strength panels and lightweight sandwich materials, such as aluminum panel-aluminum honeycomb sandwich structure, carbon fiber panel-aluminum honeycomb sandwich structure, glass fiber reinforced plastic panel-glass fiber reinforced plastic honeycomb sandwich structure, fulla fiber Panel-Nome honeycomb sandwich structure, etc., which have excellent characteristics such as light weight, strong specific stiffness, high specific strength, maximum fatigue resistance, extremely high surface degree, high temperature stability, corrosion resistance, electrical insulation, and microwave penetration , are widely used in aviation manufacturing, satellite antenna, high-speed rail transit, tower / dish solar thermal pow...

AI Technical Summary

Problems solved by technology

[0005] 1. The autoclave process has the disadvantages of high energy consumption, low efficiency, and unstable surface, which cannot meet mass production. In addition, this process uses a single-sided metal mold plus a sealed bag for vacuum forming and solidification. During the temperature change process , the sealed bag cannot force the product to cling to the molding surface of the mold, causing the surface contour to be too poor and the finished product to be ineffective

[0006] 2. Hot press process, such as the preparation process of the composite honeycomb panel announced in the Chinese invention patent with the publication number CN1403668. However, because the hot press is difficult to control the pressure, in order to prevent the honeycomb core from being crushed, pads are often placed. If the pad If it is too high, it will affect the pressure applied, resulting in low bonding strength of the honeycomb panel

Images