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Honeycomb preparation process

A preparation process and honeycomb technology, applied in the field of preparation of honeycomb structural materials, can solve the problems affecting the quality of honeycomb products, difficult to control the uniformity of dipping, and uneven density of honeycomb blocks, so as to improve quality and market competitiveness, easy to operate, Even dipping effect

Inactive Publication Date: 2014-06-25
ARAMICORE COMPOSITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) The dipping solution used for dipping contains a large amount of solvents to adjust the viscosity, and most of the solvents are organic solvents, which are very volatile. Therefore, open or semi-open dipping will cause a large amount of solvent volatilization, which is not only a waste of solvents , and will also bring great harm to the environment;
[0004] 2) Since the dipping solution is difficult to penetrate into the interior of the matrix material, it takes a long time to soak, which reduces the production efficiency and increases the cost;
[0005] 3) Due to the effect of gravity during the dipping and subsequent airing process, it is difficult to control the uniformity of the dipping, which can easily cause uneven density of the honeycomb block, which seriously affects the quality of the honeycomb product

Method used

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Examples

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Effect test

Embodiment 1

[0032] Such as Figure 1-2 As shown, a grid hole has a side length of 1.83mm and a density of 48kg / m 3 The preparation technology of aramid paper honeycomb comprises the following steps:

[0033] (1) Use the aramid paper with a thickness of 0.04mm as the base material, use the glue roller embedded with the core strip glue to apply the glue, then stack the multi-layer glued aramid paper in staggered layers, and finally heat it with a hot press machine Press to make a honeycomb stack. When hot pressing, preheat the hot press at 100°C for 30-60 minutes, gel: 120-160°C for 90-150 minutes, cure: 170-190°C for 2-4 hours, and press at a pressure of 5-7 MPa.

[0034] (2) Stretch the honeycomb laminated block through a stretching machine at 5-25mm / min to form a figure 2 The regular hexagonal honeycomb cells shown in the figure are then shaped in an oven at a high temperature at 200-250°C for 1-2 hours to make a white honeycomb block.

[0035] (3) Dipping the white honeycomb block ...

Embodiment 2

[0045] Such as Figure 1-2 As shown, a grid hole has a side length of 4.5mm and a density of 100kg / m 3 The preparation process of carbon fiber honeycomb comprises the following steps:

[0046] (1) Use carbon fiber cloth with a thickness of 0.2mm as the base material, apply glue with a glue roller embedded with core strip glue, then laminate the carbon fiber cloth after multi-layer glue coating, and finally use a hot press machine to heat press, Made into honeycomb stacks. When hot pressing, preheat the hot press at 100°C for 30-60 minutes, gel: 120-160°C for 90-150 minutes, cure: 170-190°C for 2-4 hours, and press at a pressure of 5-7 MPa.

[0047] (2) Stretch the honeycomb laminated block through a stretching machine at 5-25mm / min to form a figure 2 The regular hexagonal honeycomb cells shown in the figure are then shaped in an oven at a high temperature at 200-250°C for 1-2 hours to make a white honeycomb block.

[0048](3) Dipping the white honeycomb block at least onc...

Embodiment 3

[0058] Such as Figure 1-2 As shown, a grid hole has a side length of 2.75mm and a density of 144kg / m 3 The preparation technology of aramid paper honeycomb comprises the following steps:

[0059] (1) Use the aramid paper with a thickness of 0.2mm as the base material, use the glue roller embedded with the core glue to apply the glue, and then laminate the multi-layer glued aramid paper, and finally heat it with a hot press machine Press to make a honeycomb stack. When hot pressing, preheat the hot press at 100°C for 30-60 minutes, gel: 120-160°C for 90-150 minutes, cure: 170-190°C for 2-4 hours, and press at a pressure of 5-7MPa.

[0060] (2) Stretch the honeycomb laminated block through a stretching machine at 5-25mm / min to form a figure 2 The regular hexagonal honeycomb cells shown in the figure are then shaped in an oven at a high temperature at 200-250°C for 1-2 hours to make a white honeycomb block.

[0061] (3) Dipping the white honeycomb block at least once in the...

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Abstract

The invention relates to a honeycomb preparation process which comprises the following steps: (1) gluing a base material, laminating and performing hot-pressing, and preparing a honeycomb laminating block; (2) drawing the honeycomb laminating block, performing high-temperature setting, and preparing a white honeycomb block; (3) impregnating the white honeycomb block in impregnating equipment filled with impregnating liquid at least one time; airing once in a matched mode after impregnation each time, and curing; and (4) slicing the honeycomb subjected to the impregnating and the curing. The method is characterized in that the impregnation in the step (3) is vacuum impregnation, the used impregnating equipment is vacuum impregnating equipment, and the airing step is performed in the vacuum impregnating equipment. According to the honeycomb preparation process, a traditional normal-pressure impregnation is modified into the vacuum impregnation, comprehensive effects in three aspects of a wetting mechanism, a capillary phenomenon and an adsorption effect are utilized, the impregnation speed is increased, the impregnation uniformity is improved, the process is simple and easy to operate, the production efficiency can be greatly improved, the production cost is reduced, and the honeycomb with the excellent comprehensive performance is obtained.

Description

technical field [0001] The invention relates to a preparation method of a honeycomb structure material, in particular to a preparation of a honeycomb core. Background technique [0002] Honeycomb core (hereinafter referred to as honeycomb) refers to the core sandwiched between two skins in the honeycomb panel, which has a honeycomb-shaped cell as a whole. Honeycomb panels are widely used in many fields such as construction and aviation, and honeycomb plays a very important role in the performance of honeycomb panels. Honeycomb is usually obtained by superimposing, pasting, stretching, dipping and curing of multi-layer sheet-like base materials, and has very high strength and rigidity. Moreover, the improvement of the mechanical properties of honeycomb is mainly achieved by the dipping process. However, at present, the dipping is mostly carried out in fully open or semi-open dipping equipment. This dipping method has the following disadvantages: [0003] 1) The dipping solu...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/10B32B37/12B05D1/18
Inventor 隋广忠
Owner ARAMICORE COMPOSITE
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