Novel foam-filled honeycomb sandwich board

A foam filling and sandwich panel technology, which is applied in the field of composite materials, can solve the problems of low shear strength and rigidity of foam sandwich panels, poor panel bonding performance, affecting popularization and application, etc., and achieves simple, convenient and cost-effective foam filling. Low, tear-resistant effect

Inactive Publication Date: 2010-10-06
王韬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are also some defects in use, such as the complex manufacturing process of the former, easy instability, poor bonding performance with the panel, poor fatigue resistance, etc.
The advent of the latter makes up for some defects of the hon

Method used

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  • Novel foam-filled honeycomb sandwich board
  • Novel foam-filled honeycomb sandwich board
  • Novel foam-filled honeycomb sandwich board

Examples

Experimental program
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] like Figure 4 As shown, a novel foam-filled honeycomb sandwich panel according to the present invention includes a pyramidal honeycomb core 3, panels 2 clamped on both sides thereof, and rigid polyurethane foam 5 filled by spraying or pouring. The panel 2 can be made of 1mm to 2mm metal material, such as industrial aluminum plate, stainless steel plate, steel plate, etc.; it can also be made of 1mm to 2mm non-metallic material such as plastic plate, glass steel plate, etc. The panels on both sides can be made of the same material, or any combination of dissimilar materials, which should be selected according to the requirements of use and the environment.

[0013] figure 1 , 2 As shown, the material prepared by the pyramidal honeycomb core 3 can be metal materials, such as industrial aluminum plates, stainless steel plates, steel plates, etc., or non-metalli...

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PUM

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Abstract

The invention discloses a novel foam-filled honeycomb sandwich board, the structure of which comprises a pyramidal honeycomb core, rigid polyurethane foam and panels clamping both sides of the rigid polyurethane foam. Mould pressing, rolling and other methods are utilized to process a whole board/sheet into a latticed supporting body-shaped core board as the pyramidal honeycomb core with a series of staggered concave-convex truncated pyramids on both sides, a V-shaped groove can be formed at the joint between the slanted arrises of neighboring raised truncated pyramids, so that the notches of the truncated pyramids on the core board are communicated with one another, moreover, the vertex of each truncated pyramid body is a small plane, so that the panels on both sides can be conveniently bonded, and the rigid polyurethane foam plastic is filled in the clearance of the pyramidal honeycomb core between the panels on both sides. The produced novel foam-filled honeycomb sandwich board has all the advantages of the honeycomb sandwich board and the foam sandwich board, and is a novel composite-structured board with the advantages of reasonable structure, excellent performance, light weight, high strength and simple and easy production technique, which can be widely applied in various fields such as aeronautics and aerospace, vehicles, ships, furniture and buildings.

Description

technical field [0001] The invention relates to a composite material, in particular to a honeycomb sandwich panel filled with rigid polyurethane foam. Background technique [0002] Existing composite material sandwich panels are mainly divided into two types: honeycomb sandwich panel and foam sandwich panel. Honeycomb, etc., the core material of the latter is mainly rigid foam. The two materials have many advantages of "light weight and high strength", and have been widely used in all walks of life and people's daily life. However, there are also some defects in use, such as the complex manufacturing process of the former, easy instability, poor bonding performance with the panel, and poor fatigue resistance. The advent of the latter makes up for some defects of the honeycomb sandwich panel, but the shear strength and stiffness of the foam sandwich panel are lower than the honeycomb sandwich panel. These defects limit and affect its popularization and application in load-...

Claims

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Application Information

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IPC IPC(8): B32B3/12B32B27/40
Inventor 王韬
Owner 王韬
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