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Thermal-protection material thermal prevention and insulation system, testing method and heat treatment method

A heat protection material and test system technology, applied in the field of heat protection material heat insulation test system, can solve problems such as inability to quickly obtain multiple parameters, deviation of simulated assessment conditions, and inability to perform multiple environmental assessments, and achieve comprehensive performance evaluation and insulation resistance. The effect of realistic thermal performance and low requirements for power distribution conditions

Active Publication Date: 2018-05-11
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing methods can characterize aerospace thermal protection materials to a certain extent, there are still problems such as the deviation of the simulated assessment conditions resulting in material performance distortion, the inability to assess multiple environments, and the inability to quickly acquire multiple parameters.

Method used

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  • Thermal-protection material thermal prevention and insulation system, testing method and heat treatment method
  • Thermal-protection material thermal prevention and insulation system, testing method and heat treatment method
  • Thermal-protection material thermal prevention and insulation system, testing method and heat treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Embodiment 1: (three-chamber furnace air environment test)

[0046] For multi-chamber furnace subsystem (three-chamber furnace subsystem see figure 2 ), furnace door and sample holder subsystem (for the furnace door and sample holder subsystem corresponding to the three-chamber furnace, see image 3 ), the heating subsystem, the measurement and control temperature subsystem and the data processing subsystem constitute the thermal protection material heat insulation test system to test the thermal insulation performance of the thermal protection material. The process is as follows:

[0047] (1) Inlaid sample: inlay the sample of the heat protection material to be tested on the furnace door corresponding to the cooling chamber, the surface to be heated faces the direction of the main heating chamber, and is flush with the surrounding furnace materials. Filling with thermal material, attach the high-temperature resistant ceramic plate with the thermocouple fixed on the b...

Embodiment 2

[0053] Embodiment 2: (controllable gas environment, four-chamber furnace test)

[0054] It is used for multi-environment subsystems and multi-chamber furnace subsystems in closed shells (for four-chamber furnace subsystems, see Figure 4 ), furnace door and sample holder subsystem (for the furnace door and sample holder subsystem corresponding to the four-chamber furnace, see Figure 5 ), the heating subsystem, the temperature measurement and control subsystem, the safety assurance subsystem and the data processing subsystem constitute the thermal protection material insulation test system to test the thermal insulation performance of the thermal protection material.

[0055] (1) Inlaid sample: inlay the sample of the heat protection material to be tested on the furnace door corresponding to the cooling chamber, the surface to be heated faces the direction of the main heating chamber, and is flush with the surrounding furnace materials. Filling with thermal material, attach t...

Embodiment 3

[0062] Embodiment 3: (controllable gas environment, three-chamber furnace sample heat treatment)

[0063] It is used for multi-environment subsystems and multi-chamber furnace subsystems in closed shells (for three-chamber furnace subsystems, see figure 2 ), furnace door and sample holder subsystem (for the furnace door and sample holder subsystem corresponding to the three-chamber furnace, see image 3 ), the heating subsystem, the measurement and control temperature subsystem, the safety assurance subsystem and the data processing subsystem. The thermal protection material heat insulation test system performs heat treatment on the thermal protection material during the preparation process. The process is as follows:

[0064] (1) Inlaid sample: Inlay the sample of heat treatment protection material to be tested on the furnace door corresponding to the cooling chamber, the surface to be heated faces the direction of the main heating chamber, and is flush with the surrounding ...

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Abstract

The invention discloses a thermal-protection material thermal prevention and insulation system, a testing method and a heat treatment method. It can be achieved that a spacecraft thermal-protection material is closer to multi-state thermal prevention and insulation performance testing of a service environment. In the meanwhile, in the preparing process of the thermal-protection material, single-face heat treatment or sintering is conducted, the gradient temperature is formed in the thickness direction, the surface undergoes high temperature, service is stable at high temperature, while the inward temperature is gradually lowered, and both the mechanical property and the thermal insulation performance of the material are improved. As is tested, the overall mechanical property of the material can be improved by around 20%, and the heat conductivity can be lowered by 10% or above. Therefore, by means of the testing system, it can be achieved that the thermal-protection material is closerto the multi-state thermal prevention and insulation performance testing of the service environment, it can also be achieved that in the material preparing process, single-surface high-temperature quick heating is conducted, and the comprehensive performance of the thermal-protection material is improved.

Description

technical field [0001] The invention relates to a thermal insulation test system, a test method and a heat treatment method of a heat protection material, and belongs to the field of special tests and process equipment. Background technique [0002] The thermal protection material of the aerospace vehicle is the key to ensure that the aerodynamic heat will not damage the internal structure of the aircraft during its high-speed flight. With the development of high-speed and motorized aircraft, new non-ablative high-temperature heat-resistant thermal protection materials (including heat-resistant materials, heat-insulating materials, and integrated materials for heat-resistant insulation, etc.) are the focus of the development of new spacecraft in the future. During the application process, the high-temperature resistant non-ablative thermal protection materials for aerospace usually only experience aerodynamic heat on one side, that is, the heat is gradually transferred from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 李同起冯志海张大海
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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