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Method for preparing heat insulation tile of shuttle

A space shuttle and thermal insulation tile technology, which is applied in the direction of aerospace vehicle heat protection devices, aerospace safety/emergency devices, etc., can solve the problems of low heat insulation efficiency, low density, high density, etc., and achieve low heat conduction and heat insulation effects Effect

Active Publication Date: 2010-04-07
ZHONGCAI HIGH NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat insulation layer of this new material must have the characteristics of low density, low thermal conductivity, high temperature resistance, high strength, and high heat insulation efficiency. Low tensile strength, or directly flexible material
High-strength materials have the disadvantages of high density and low thermal insulation efficiency. For aviation and aerospace vehicles that regard weight as their life, the lighter the aircraft, the better. Therefore, thermal insulation materials must have low density and high strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Quartz fiber composite thermal insulation material of the present invention, batching weight is made up of:

[0027] 80% fused silica glass, 15% alumina fiber, 3% boron nitride and 2% matrix additives;

[0028] Among them, the diameter of fused silica glass fiber is 1-10 μm, SiO 2 Weight content ≥ 95%;

[0029] Alumina fiber diameter is 3-20μm, Al 2 o 3 Weight content ≥ 80%;

[0030] First, the fused silica glass fiber and alumina fiber are chopped to 1-3cm by shearing machine;

[0031] The matrix additive is a mixture of silica sol and methyl cellulose in a weight ratio of 1:1.

[0032] The fused silica glass fiber and alumina fiber are ball milled separately or mixed, filtered through a 300-mesh sieve, mixed with matrix additives, boron nitride and deionized water medium for stirring and dispersing, poured into a suction filtration molding mold for molding, dried and fired A substrate blank is prepared.

[0033] The composition of coating ingredients by weight ...

Embodiment 2

[0039] Quartz fiber composite thermal insulation material of the present invention, batching weight is made up of:

[0040] Fused silica glass fiber 85%, alumina fiber 10%, boron nitride 3% and matrix additive 2%;

[0041] Wherein the diameter of the fused silica glass fiber is 1-10 μm, and the SiO2 weight content is ≥95%;

[0042] Alumina fiber diameter is 3-20μm, Al 2 o 3 Weight content ≥ 80%;

[0043] First, the fused silica glass fiber and alumina fiber are chopped to 1-3cm by shearing machine;

[0044] The matrix additive is a mixture of silica sol and methyl cellulose in a weight ratio of 1:1.

[0045] The fused silica glass fiber and alumina fiber are ball milled separately or mixed, filtered through a 300-mesh sieve, mixed with matrix additives, boron nitride and deionized water medium for stirring and dispersing, poured into a suction filtration molding mold for molding, dried and fired A substrate blank is prepared.

[0046] The composition of coating ingredien...

Embodiment 3

[0052]Quartz fiber composite thermal insulation material of the present invention, batching weight is made up of:

[0053] Fused silica glass fiber 91.5%, alumina fiber 5%, boron nitride 0.5% and matrix additive 3%;

[0054] Among them, the diameter of fused silica glass fiber is 1-10 μm, SiO 2 Weight content ≥ 95%;

[0055] Alumina fiber diameter is 3-20μm, Al 2 o 3 Weight content ≥ 80%;

[0056] First, the fused silica glass fiber and alumina fiber are chopped to 1-3cm by shearing machine;

[0057] The matrix additive is a mixture of silica sol and methyl cellulose in a weight ratio of 1:1.

[0058] The fused silica glass fiber and alumina fiber are ball milled separately or mixed, filtered through a 300-mesh sieve, mixed with matrix additives, boron nitride and deionized water medium for stirring and dispersing, poured into a suction filtration molding mold for molding, dried and fired A substrate blank is prepared.

[0059] The composition of coating ingredients by ...

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Abstract

The invention relates to a method for preparing heat insulation tiles of a shuttle, which is mainly used in heat insulation of shuttles and aircraft heat insulation protecting field such as other aerospace, aviation, guided missile and the like, belonging to the special technical field. The method comprises the steps of matrix batching, shaping, sintering and implementing coating, and the matrix batching is prepared from the following components by weight percent: 50-95% of fused quartz glass fiber, 5-50% of alumina fiber, 0-5% of boron nitride and 0-3% of matrix assistant. The heat insulation tile in the invention has the advantages of high-temperature resistance, high strength, low density, low heat conduction and fine heat insulation effect.

Description

technical field [0001] The invention relates to a method for preparing a heat-insulating tile for a space shuttle. The heat-insulating tile is mainly used for the heat insulation of a space shuttle and the heat insulation and protection fields of other aerospace, aviation, missile and other aircraft, and belongs to the special technical field. Background technique [0002] The main material for making space shuttles is aluminum, which is far from the temperature resistance requirement of 1649 degrees Celsius, so it is necessary to add a heat insulation layer to it. In the early aerospace projects, the spacecraft was equipped with a fusible heat insulation layer. This heat insulation layer consumes heat due to melting. It provides effective protection for the spacecraft. The disadvantage is that it is disposable and cannot be repeated. use. The space shuttle needs to be reused, and it is necessary to equip a new reusable thermal insulation layer. The heat insulation layer o...

Claims

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Application Information

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IPC IPC(8): B64G1/58C04B35/66C04B35/622
Inventor 赵小玻魏美玲刘瑞祥程之强王重海于海杰隋学叶尚超峰栾艺娜
Owner ZHONGCAI HIGH NEW MATERIAL
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