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Carbon fiber honeycomb core material node cementing method

A technology of honeycomb core material and carbon fiber sheet, applied in chemical instruments and methods, lamination devices, lamination and other directions, can solve the problems of core mold demolding difficulty and other problems, reduce the number of molds, avoid demoulding difficulties, and uniform pressure Effect

Inactive Publication Date: 2020-04-17
AVIC BASIC TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is designed to provide a carbon fiber honeycomb core material node bonding method aimed at the above-mentioned deficiencies in the prior art. Can be continuously glued, and the format size is not limited

Method used

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  • Carbon fiber honeycomb core material node cementing method
  • Carbon fiber honeycomb core material node cementing method
  • Carbon fiber honeycomb core material node cementing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Adopt the method of the present invention to carry out the step of bonding carbon fiber honeycomb core material node as follows:

[0027] Step 1. Choose a number of semi-hexagonal carbon fiber sheets with a side length of 4.5mm made of AVIC Composite Material cf3052 / 5224 prepreg, T=100mm, on the outer surface of the first layer of semi-hexagonal carbon fiber sheet 3 The epoxy resin adhesive 5 produced by Heilongjiang Petrochemical Institute is evenly applied to the node positions on the same horizontal plane, and the solid content of the glue is 20%-50%. Combine the first layer of semi-hexagonal carbon fiber sheet 3 with the second layer of semi-hexagonal carbon fiber sheet 31, support the pressure rod 4 at the joint of the inner surface of the first layer of semi-hexagonal carbon fiber sheet 3, add The compression rod 4 is a regular hexagonal prism with a side length B of 4.0mm. Set a mold at the joint of the inner surface of the second layer of semi-hexagonal carbon ...

Embodiment 2

[0032] Adopt the method of the present invention to carry out the step of bonding carbon fiber honeycomb core material node as follows:

[0033] Step 1. Choose a number of semi-hexagonal carbon fiber sheets with a side length of 5.0mm made of polyimide prepreg produced by AVIC Composite Materials. On the same outer surface of the first layer of semi-hexagonal carbon fiber sheet 3 Evenly smear the polyimide adhesive 5 produced by Heilongjiang Petrochemical Institute on the joint positions of the horizontal plane, and the solid content of the glue is 20%-40%. Combine the first layer of semi-hexagonal carbon fiber sheet 3 with the second layer of semi-hexagonal carbon fiber sheet 31, support the pressure rod 4 at the joint of the inner surface of the first layer of semi-hexagonal carbon fiber sheet 3, add The compression rod 4 is a regular hexagonal prism with a side length of 4.0 mm. Set a mold at the joint of the inner surface of the second layer of semi-hexagonal carbon fiber...

Embodiment 3

[0038] Step 1. Select ACTECH produced by AVIC Composites @A number of semi-hexagonal carbon fiber sheets with a side length of 5.0mm made of 1201 / ccf300 carbon fiber plain fabric prepreg are evenly spread on the nodes of the same horizontal plane on the outer surface of the first layer of semi-hexagonal carbon fiber sheet 3 The fast-curing adhesive 5 produced by Heilongjiang Petrochemical Institute is a cyanate ester system, and the solid content of the glue is 20%-50%. Combine the first layer of semi-hexagonal carbon fiber sheet 3 with the second layer of semi-hexagonal carbon fiber sheet 31, support the pressure rod 4 at the joint of the inner surface of the first layer of semi-hexagonal carbon fiber sheet 3, add Depression bar 4 is square, and side length is 4.4mm. Set a mold at the joint of the inner surface of the second layer of semi-hexagonal carbon fiber sheet 31, and pre-bond it by heating and pressing. The bonding pressure is 0.1Mpa±0.05Mpa, the temperature is 160°C...

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Abstract

The invention relates to a carbon fiber honeycomb core material node cementing method, which comprises the following steps: selecting semi-hexagonal carbon fiber sheets, coating a core strip glue at intervals at node positions, combining the semi-hexagonal carbon fiber sheets coated with the core strip glue, and heating, pressurizing and curing in a cementing tool to obtain a carbon fiber honeycomb core material. According to the carbon fiber honeycomb core material node cementing method and the gluing tool, the technological process is simplified, the manufacturing efficiency is improved, andthe honeycomb breadth size is not limited.

Description

technical field [0001] The invention relates to a carbon fiber honeycomb core material node bonding method, which belongs to the technical field of special honeycomb preparation. Background technique [0002] Combining the honeycomb core material and the panel to make a sandwich structure composite material can improve the rigidity and impact resistance of the structure, while reducing the weight of the structure. Aramid paper honeycomb and aluminum honeycomb have been widely used in aerospace, rail transit and other fields. Carbon fiber Honeycomb core material has higher strength and modulus than aramid paper honeycomb and aluminum honeycomb. Patent CN 104842593 B proposes a carbon fiber honeycomb structure and its preparation method. This patent mainly states the molding process and method of the semi-hexagonal carbon fiber sub-parts, and does not mention how to apply pressure to the bonding of the carbon fiber honeycomb node position. There is no pressure It is difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/12B32B37/10B32B37/06B32B3/12B32B9/00B32B9/04
CPCB32B3/12B32B5/02B32B5/26B32B37/06B32B37/10B32B37/12B32B2262/106
Inventor 刘杰纪双英许建翔郝巍马科峰
Owner AVIC BASIC TECH RES INST
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