Cellular board and manufacturing method thereof

Abstract

The invention discloses a manufacturing method of a cellular board which comprises the following steps of: producing a double-layer composite pipe, wherein the inner layer of the double-layer composite pipe is a high-melting-point material layer, the outer layer of the double-layer composite pipe is a low-melting-point material layer, and the melting point of the low-melting-point material layer is lower than that of the high-melting-point material layer; bundling the multiple double-layer composite pipes in order, heating so that the outer layer of the double-layer composite pipe is melted and the inner layer is not melted and cooling to enable the adjacent attached outer layers of the double-layer composite pipe are bonded together to form a honeycomb; cutting the honeycomb along the cross section of the double-layer composite pipe so as to obtain a platy honeycomb base material; and hot pressing the top surface and the bottom surface of the multiple honeycomb base materials in the same plane so that the end surface of the adjacent attached inner layers of the double-layer composite pipe is fused to form a fillet to obtain the cellular board. The invention also discloses a cellular board manufactured by using the method. According to the technical scheme, the cellular board with stability, evenness, reliable quality, high intensity and large area can be obtained.

Description

technical field [0001] The invention belongs to the field of honeycomb materials, in particular to a honeycomb panel and a preparation method thereof. Background technique [0002] In modern times where resources and energy are becoming more and more scarce, honeycomb material is a very advantageous material, because it has the advantages of light weight and high strength, and can save a lot of raw materials. At present, the relatively mature honeycomb core materials are aluminum honeycomb and paper honeycomb. Aluminum honeycomb has higher strength but higher price and weight, and is mainly used in the aviation field; The thickness of the core cannot be made too thick, and the strength is low, which is mainly used in the packaging field. The honeycomb made of thermoplastic materials has a good improvement in physical properties and greatly improved impact resistance, and thermoplastic materials themselves have the advantages of recyclability, waterproof, corrosion resistanc...

AI Technical Summary

Problems solved by technology

However, the process of circular tubular honeycomb is relatively complicated, requiring a large number of long tubes to be bundled and coated with adhesive to form

CN16344699A discloses a method for arranging circular pipes and dipping and gluing. This method consumes too much glue, and the gluing process is relatively complicated and laborious.

This method is complex in process, it needs to use high-priced profiles, increase the construction process, and prevent water leakage, etc., and in the process of use, the bridging point is often the stress concentration point, and the damage of the material often starts from here

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