Aluminum foil composite heat-proof sleeve and manufacturing method thereof

Abstract

The invention relates to a heat-proof sleeve and a manufacturing method thereof for apparatuses, instruments and the like of aerospace aircrafts under temperature-resistant or low-radiation hot flow technical conditions for a long time, and discloses an aluminum foil composite heat-proof sleeve. The heat-proof sleeve is characterized in that a bottom layer of the heat-proof sleeve is made of a high-temperature heat insulation cloth, the high-temperature heat insulation cloth is provided with overlapping edges at the corners of the corresponding apparatus and instrument, the outer surface of the high-temperature heat insulation cloth is coated with a continuous heat insulation coating layer, varnish layers are sprayed at the exterior of the heat insulation coating layer and the end surface of the heat-proof sleeve, and an aluminum foil composite heat insulation film is adhered to the exterior of each varnish layer. The manufacturing method comprises the following steps of manufacturing the bottom layer of the heat-proof sleeve by the high-temperature heat insulation cloth, applying heat insulation coating, baking and curing; spraying varnish to the exterior of the heat insulation coating layer and the end surface of the heat-proof sleeve, baking and curing; adhering the aluminum foil composite heat insulation films to the varnish layers. The heat-proof sleeve has the advantages that the installation is convenient, the forming matching property is good, and the protecting effect is stable.

Description

technical field [0001] The invention relates to a heat-proof cover for instruments, meters and other equipment on an aerospace vehicle under the technical state of long-term temperature resistance or low radiation heat flow and a manufacturing method thereof. Background technique [0002] At present, most of the heat-proof materials for aerospace instruments and instrumentation equipment are protected by multi-layer wrapping method. This technology has disadvantages such as inconvenient tooling, poor molding fit, and unstable protection effect. The wrapping method mostly uses high-temperature heat-insulating cloth for 1 / 2 wrapping method, which is relatively time-consuming, and will generate excess material and increase weight during winding. During the flight, heat-resistant materials in special parts exist at a certain frequency. loose risk. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an aluminum foil comp...

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Problems solved by technology

[0002] At present, most of the heat-proof materials for aerospace instruments and instrumentation equipment are protected by multi-layer wrapping method. This technology has disadvantages such as inconvenient tooling, poor molding fit, and unstable protection effect.

The wrapping method mostly uses high-temperature heat-insulating cloth for 1 / 2 wrapping method, which is relatively time-consuming, and will generate excess material and increase weight during winding. During the flight, heat-resistant materials in special parts exist at a certain frequency. loose risk

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