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Preparation method of heat preventing and heat insulation composite material

A composite material and heat insulation layer technology, applied in heat exchange equipment, chemical instruments and methods, and pipeline protection through heat insulation, can solve problems such as complex process flow, high production cost, and long production cycle, and achieve the goal of simplifying the process Effect

Active Publication Date: 2018-05-25
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-heat insulation layer is formed separately, the process is relatively complicated, the production cycle is long, and the anti-heat insulation layer is formed separately, different tooling is required, and the production cost is high

Method used

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  • Preparation method of heat preventing and heat insulation composite material

Examples

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preparation example Construction

[0027] The preparation method of the anti-heat insulation composite material in the embodiment of the present invention includes the following steps: 1) pretreating the surface of the metal shell, the pretreatment includes removing the oxide layer and improving the surface roughness; 2) treating the surface after step 1) After the metal shell is cleaned, the surface of the metal shell is glued and vulcanized; 3) the inner heat insulation layer is wound on the surface of the metal shell after step 2); 4) after the process of step 3), The outer heat-proof layer is wound on the surface of the finished metal shell; 5) curing treatment is carried out on the metal shell wrapped with the inner heat-insulation layer and the outer heat-proof layer to obtain the heat-insulation composite material, and the curing process includes vacuum solidified under pressure.

[0028] The steps are described in detail below:

[0029] In step 1), the surface of the metal shell is pretreated to remove...

Embodiment 1

[0039] In the embodiment of the present invention, the resin-based anti-insulation gradient composite material integrated molding method, the specific steps are as follows:

[0040] (1) Use quartz sand with an abrasive particle size of 60 mesh to perform sandblasting treatment on the outer surface of the metal shell a. Use a brush dipped in alcohol to clean the surface of the metal shell a twice, and dry naturally after each cleaning;

[0041] (2) After preheating the metal shell a in an oven at 80°C for 30 minutes, paste a layer of epoxy resin-based adhesive film b on the outer surface of the metal shell a. The adhesive film b is allowed to overlap, and the width of the overlapping part is 10mm , gaps are not allowed, and the air bubbles > φ5mm on the film layer b are scratched and pressed tightly. After the adhesive film b is pasted, put it in an oven at 110°C for 15 minutes to vulcanize;

[0042] (3) Use hollow glass beads of a certain width to fill the non-alkali glass f...

Embodiment 2

[0048] In the embodiment of the present invention, the resin-based anti-insulation gradient composite material integrated molding method, the specific steps are as follows:

[0049] (1) Use quartz sand with an abrasive particle size of 20 mesh to perform sandblasting treatment on the outer surface of the metal shell a. Use a brush dipped in alcohol to clean the surface of the metal shell a twice, and dry naturally after each cleaning;

[0050] (2) After preheating the metal shell a in an oven at 75°C for 20 minutes, paste a layer of epoxy resin-based adhesive film b on the outer surface of the metal shell a. The adhesive film b is allowed to overlap, and the width of the overlapping part is 5mm , gaps are not allowed, and the air bubbles > φ5mm on the film layer b are scratched and pressed tightly. After the adhesive film b is pasted, put it in a 100°C oven for 10 minutes to vulcanize;

[0051] (3) Fill the non-alkali glass fiber mesh prepreg cloth with hollow glass beads of a...

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Abstract

The invention provides a preparation method of a heat preventing and heat insulation composite material. The method comprises the steps of 1) preprocessing the surface of a metal housing, namely removing an oxidized layer and improving the surface roughness; 2) washing the surface of the metal housing processed in step 1); adhering a glue film to the surface of the metal housing; and vulcanizing the surface; 3) coiling the surface of the metal housing processed in step 2) with an inner side heat insulation layer; 4) coiling the surface of the metal housing processed in step 3) with an outer side heat preventing layer; and 5) curing the metal housing after coiling with the inner side heat insulation layer and the outer side heat preventing layer, thus obtaining the heat preventing and heatinsulation composite material, wherein the curing processing includes pressure curing in vacuum state. According to the method, the heat preventing layer and the heat insulation layer are integrally formed, so that the processes are simplified, and the composite material with the heat preventing performance and the heat insulation performance is obtained.

Description

technical field [0001] The invention belongs to the technical field of composite material forming, and in particular relates to a preparation method of an anti-heat insulation composite material. Background technique [0002] Composite structure compartment shell is mainly composed of metal shell and composite material layer. Resin-based heat-resistant materials take away a lot of heat during the ablation process, and the remaining heat needs to be blocked by high-thermal-resistance, light-weight heat-insulating materials to ensure that the internal structure does not overheat. With the development of products, a single resin-based heat-resistant material can no longer meet the requirements of product use, and heat-resistant materials and heat-insulating materials need to be used together. [0003] At present, the anti-heat insulation layer of the cabin shell of the composite structure mainly adopts the split molding scheme: the heat insulation layer is directly wound and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/065B32B37/12B32B38/00B32B38/16
CPCB32B37/12B32B38/0012B32B38/162B32B2038/002B32B2038/0076B32B2255/10B32B2255/26B32B2262/101B32B2264/101B32B2307/304F16L59/065
Inventor 陈娓冯四伟
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL