Carbon fiber composite reflector and manufacturing method thereof

Abstract

The invention belongs to the technical field of space optical remote sensors, and relates to a carbon fiber composite reflector and a manufacturing method thereof. The problems of fiber marks, low surface shape precision and the like of a carbon fiber reflecting mirror produced by the conventional copying process are solved. The reflecting mirror comprises a carbon fiber framework and a reflectingmirror panel, the shape of the carbon fiber framework is matched with the shape of the reflecting mirror panel; the reflecting mirror panel is bonded with the carbon fiber framework through low-stress glue; the carbon fiber framework is made of a carbon fiber composite material and comprises a honeycomb framework and a top panel, and the top panel is of a flat plate structure, is integrally arranged with the honeycomb framework and covers the upper surface of the honeycomb framework; the reflecting mirror panel is made of a ULE material, the bottom surface of the reflecting mirror panel is aflat end surface, the flatness of the reflecting mirror panel is as high as possible, and the reflecting mirror panel is bonded with the carbon fiber framework resin film; the top surface is a reflecting surface, and the shape is determined according to an optical reflecting surface curved surface equation. The reflector is simple in manufacturing process, small in reflector mass, high in structural specific stiffness and specific strength, excellent in mechanical resistance, good in optical machinability and high in surface shape precision.

Description

technical field [0001] The invention belongs to the technical field of space optical remote sensors, and relates to a carbon fiber composite mirror and a manufacturing method thereof. Background technique [0002] With the rapid development of space-to-Earth observation technology, increasing the mirror aperture has become an effective way to improve the resolution of space optical remote sensors. The high lightweight design can greatly reduce the weight of the reflector, thereby reducing the launch cost; the high rigidity design is conducive to the high surface accuracy of the reflector, and at the same time ensures that the reflector has a sufficiently high fundamental frequency during the launch process; high stability The design reduces the sensitivity of the reflector to external stress and hot and humid environment, and improves the surface shape accuracy of the reflector under orbital conditions. Commonly used space mirror materials include glass-ceramics, fused sili...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of carbon fiber mirrors produced by the current replication process, such as fiber marks, low surface shape accuracy, large heat and humidity deformation, complex replication process, and difficult processing of replica molds, the invention provides a carbon fiber composite mirror and its manufacturing method. , the process is simple, the mass of the mirror is small, the structure has high specific stiffness and specific strength, excellent mechanical resistance, good stability, good optical machinability, and high surface accuracy

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