A detachable heat-proof structure and its preparation method and application

A heat-proof and heat-proof layer technology, which is applied in the directions of aerospace vehicle heat-proof devices, aerospace safety/emergency devices, etc., can solve the problems of non-reuse, separation of metal structures, difficult heat-proof materials, etc., and achieves good heat-proof performance. , low density, the effect of meeting the needs of heat protection

Active Publication Date: 2021-02-05
BEIJING SATELLITE MFG FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The way these traditional heat-resistant materials are connected to the metal structure makes it difficult to separate the heat-resistant material from the metal structure. After one flight, the return capsule cannot be used again, causing great waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Carbon fiber is selected as the heat-resistant material reinforcement, phenolic resin is used as the heat-resistant material matrix, and the three-dimensional network structure of carbon fiber is a three-dimensional acupuncture structure. The weight ratio of phenolic resin and three-dimensional network structure of carbon fiber is 1:1. , to obtain heat-resistant material;

[0038](2) Select the silicone rubber pad as the strain isolation pad and GD414 as the adhesive. Apply GD414 adhesive evenly on one side of the strain isolation pad and the side of the heat-resistant material. After coating, just compact the heat-resistant material and the strain isolation pad and apply heavy objects on the side of the strain isolation pad to pressurize for 1 day. Cured for 1 day.

[0039] (3) Choose M40J carbon fiber to make two carbon fiber panels, and choose epoxy glue as the adhesive. Evenly coat the bonding surface of the carbon fiber panel with epoxy resin, and glue it to ...

Embodiment 2

[0043] (1) Quartz fiber is selected as the heat-resistant material reinforcement, phenolic resin is used as the heat-resistant material matrix, and the three-dimensional network structure of quartz fiber is a three-dimensional acupuncture structure. The weight ratio of phenolic resin and quartz fiber three-dimensional network structure is 1:2. method of impregnation, to obtain heat-resistant materials;

[0044] (2) Aramid fiber woven cloth is selected as the strain isolation pad, and silicon rubber is selected as the adhesive. Evenly coat one side of the strain isolation pad and the side of the heat-resistant material with silicone rubber adhesive. After coating, the heat-resistant material and the strain isolation pad are only compacted, and a heavy object is placed on the side of the strain isolation pad to pressurize for 1 day. Cured at room temperature for 1 day.

[0045] (3) Choose M55J carbon fiber to make two carbon fiber panels, and choose epoxy glue as the adhesive. ...

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PUM

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Abstract

The invention relates to a detachable heat-proof structure and its preparation method and application, which belongs to the technical field of spaceship or detector re-entry heat protection to the earth, and has good application value in the field of spaceship or detector heat protection. The invention prepares the heat-resistant material, the carbon honeycomb interlayer structure, and the carbon-phenolic heat-resistant material that are compounded with the carbon honeycomb interlayer structure through an adhesive, and the heat-proof structure is obtained after compounding. Connect the heat-resistant structure with the metal structure through mechanical connection, and finally obtain the detachable return capsule of the heat-resistant structure.

Description

technical field [0001] The invention relates to a detachable heat-proof structure and its preparation method and application, which belongs to the technical field of spaceship or probe re-entry heat protection to the earth, and has good application value in the spaceship or probe heat-proof field. Background technique [0002] When the spacecraft or probe re-enters the earth at the second cosmic speed, when the high-speed air bypasses the body, due to the viscous effect of the gas, the air is strongly compressed and rubbed by the surface of the body, and part of the energy is removed to make the gas molecules excited and converted into internal energy In addition, most of the kinetic energy of the airflow is converted into heat energy, so that the temperature of the air rises rapidly. Metal load-bearing structures are difficult to resist such high temperatures and must be protected with heat-resistant materials on their surfaces. [0003] The spaceship or detector return ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/58B29C65/52
CPCB29C65/52B64G1/58
Inventor 张明董薇刘峰宁旭东张鹏飞梁龙刘佳孟博田桂芝王冬赖小明马彬尉世厚刘军王书超
Owner BEIJING SATELLITE MFG FACTORY
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