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Profile matching laying method for heat insulation layers

A heat insulation layer and surface matching technology, which is applied in the field of heat insulation layer surface matching laying, can solve the problems of uneven force, limited curing area, easy cracks, etc., achieve stable and reliable performance, and ensure heat insulation effect , highly operable effect

Active Publication Date: 2021-02-19
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the traditional heat insulation layer bonding and curing method has limited curing area, limited complexity of the bonded heat insulation layer surface, uneven force, prone to cracks, damage, etc.

Method used

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  • Profile matching laying method for heat insulation layers
  • Profile matching laying method for heat insulation layers
  • Profile matching laying method for heat insulation layers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In this embodiment, a single inner insulation layer is used to lay the cabin body, and the specific operations are as follows:

[0044] (1) Check the cabin body that needs to be laid with heat insulation layer, including structural integrity, wall flatness, etc. The volume of the cabin body is 0.8m 3 ; It is judged that the cabin and the heat insulation layer can be integrally installed in the vacuum auxiliary device, and the heat insulation layer can be laid;

[0045] (2) Clean the cabin body where the heat insulation layer needs to be laid, and ensure that the contact surface between the heat insulation layer and the cabin body is clean and free of oil stains;

[0046] (3) Prepare the single-block inner heat-insulation layer that needs to be laid, and the heat-insulation layer is made of flexible heat-insulation material, and then this heat-insulation layer and the cabin body are preassembled;

[0047] (4) Make a vacuum auxiliary device according to the size, shape a...

Embodiment 2

[0054] In this embodiment, 6 inner insulation layers are used to lay the cabin body, and the specific operations are as follows:

[0055] (1) Check the cabin body that needs to be laid with heat insulation layer, including structural integrity, wall flatness, etc. The volume of the cabin body is 2m 3 ; It is judged that the structure of the cabin can be used as a part of the vacuum auxiliary device, and the heat insulation layer can be laid;

[0056] (2) Clean the cabin body where the heat insulation layer needs to be laid, and ensure that the contact surface between the heat insulation layer and the cabin body is clean and free of oil stains;

[0057] (3) Prepare 6 inner heat insulation layers that need to be laid, and the heat insulation layer is made of flexible heat insulation material, and then the heat insulation layer and the cabin body are preassembled;

[0058] (4) Make a vacuum auxiliary device according to the size, shape and tightness of the cabin;

[0059] (5) App...

Embodiment 3

[0065] It is carried out in the same manner as in Example 1, except that the heat insulation layer is an outer heat insulation layer.

[0066] After testing, the compression force on each side of the heat insulation layer during the curing process and the bonding strength of each position of the heat insulation layer after curing are shown in Table 1.

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Abstract

The invention relates to a profile matching laying method for heat insulation layers. The profile matching laying method comprises the following steps that the contact surface of one or more complex profile heat insulation layers and a cabin body is evenly coated with adhesives, and the heat insulation layers are placed at the corresponding cabin body bonding positions of the single or more complex profile heat insulation layers; (2), a vacuum auxiliary device is manufactured according to the size, shape, sealing performance and other characteristics of the cabin body; and (3) vacuumizing, pressurizing and curing are conducted on the stuck heat insulation layers and the cabin body by using the manufactured vacuum auxiliary device, the vacuum auxiliary device is removed after the curing isfinished, and therefore the high-profile matched laying of the complex heat insulation layers is completed. The profile matching laying method is simple in process and high in operability, the stuck heat insulation layers are uniform in stress in the curing process, can be highly matched with a profile between cabins, and is firmly stuck, so that a good heat insulation effect is achieved.

Description

technical field [0001] The invention relates to the technical field of functional composite materials, in particular to the laying technology of a heat insulating layer, and in particular to a profile matching laying method for a heat insulating layer. Background technique [0002] With the rapid development of my country's aerospace technology, the heat insulation layer has become an indispensable part of the structure and thermal protection system. Its function is to effectively prevent heat from entering the interior of the cabin when the aircraft is flying quickly for a long time, so as to maintain a lower temperature in the cabin and ensure the normal operation of equipment and instruments. [0003] The traditional bonding and curing methods of the heat insulation layer mainly include: sandbag compaction method, tool clamp clamping method, tape winding and tightening method, etc. The disadvantages of the above method of bonding and curing are obvious: 1) The sandbag co...

Claims

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Application Information

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IPC IPC(8): B29C65/48B29C37/00B64F5/10
CPCB29C65/48B29C37/00B29C66/0222B64F5/10
Inventor 王军辉权成王子宁白莉娟黄娣杨洁颖张昊
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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