The invention relates to an elastic high-temperature sealing material as well as a preparation method and application thereof. The method comprises the following steps: weaving a first metal elastic net structure and a second metal elastic net structure; preparing a coating on the surface of the fiber cloth to obtain coating type fiber cloth; the first metal elastic net structure, the coating type fiber cloth and the second metal elastic net structure are sequentially stacked and then are folded in a reciprocating mode to form a strip-shaped structure with a W-shaped section, and the strip-shaped structure is shaped through a pressing roller to obtain an elastic assembly; and wrapping the elastic component with a fiber fabric, and sewing to obtain the elastic high-temperature sealing material. The elastic high-temperature sealing material maintains excellent high-temperature elasticity, has the capacity of adapting to thermal expansion matching self-adaptive adjustment of gaps of an outer heat protection system, is excellent in heat sealing performance, can be used for heat insulation sealing of the gaps of the outer heat protection system of a spacecraft, and has the application value of being used in high and low temperature wide areas and achieving gap elastic self-adaptive sealing.
本发明涉及一种弹性高温密封材料及其制备方法和应用。所述方法包括:编织第一金属弹性网结构和第二金属弹性网结构;在纤维布的表面制备涂层,得到涂层型纤维布;将所述第一金属弹性网结构、所述涂层型纤维布和所述第二金属弹性网结构依次叠放,然后往复对折形成截面为W型的条状结构,再经压辊定型,得到弹性组件;用纤维织物包覆所述弹性组件后进行缝合,制得弹性高温密封材料。本发明中的弹性高温密封材料维持了高温优异的弹性,具有适应外防热系统缝隙热膨胀匹配自适应调节能力,热密封性能优异,可以用于空间飞行器外防热系统缝隙间的隔热密封,具有高低温宽区使用、缝隙弹性自适应密封的应用价值。
Elastic high-temperature sealing material as well as preparation method and application thereof
一种弹性高温密封材料及其制备方法和应用
2023-09-12
Patent
Elektronische Ressource
Chinesisch
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