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A kind of preparation technology of carbon fiber reflector

A preparation process and mirror technology are applied in the field of preparation technology of carbon fiber reflectors, which can solve the problems that carbon fiber reflectors are not suitable for large-aperture spherical mirrors, and the surface shape accuracy of carbon fiber reflectors is low, so as to reduce the phenomenon of surface printing, reliable performance, high precision, etc. The effect of improving the carrying capacity

Active Publication Date: 2019-02-05
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the preparation process of carbon fiber mirrors in the prior art is not suitable for the preparation of large-diameter spherical mirrors and aspheric mirrors, and the prepared carbon fiber mirrors have low surface shape accuracy, and provide a preparation process for carbon fiber mirrors

Method used

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  • A kind of preparation technology of carbon fiber reflector
  • A kind of preparation technology of carbon fiber reflector
  • A kind of preparation technology of carbon fiber reflector

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preparation example Construction

[0038] A preparation process of a carbon fiber reflector, comprising the preparation of a reflector substrate 3, the preparation of a reflector panel 4, bonding, detection, coating and polishing, the specific steps are as follows:

[0039] Step 1, preparation of mirror base 3

[0040] 1a) preparing a mirror base mold according to the carbon fiber mirror to be prepared;

[0041] The above-mentioned preparation process is common sense for those skilled in the art, and there is no special requirement; generally, in order to ensure the accuracy of the mirror panel 4, the mirror base mold adopts high-precision processing; in order to make the prepared mirror base 3 lightweight, the mirror base mold is preferably Using a mold with a triangular lightweight design, such as Figure 4 , this design is the prior art; the material of the reflector base mold is preferably Invar;

[0042] 1b) coating a release agent on the surface of the mirror base mold to obtain a release layer;

[004...

Embodiment 1

[0067] The parameters of the carbon fiber reflector to be designed are: diameter 350mm, spherical radius 1510.7mm, the quality of the reflector is required to be no more than 2Kg, and the surface shape accuracy is better than λ / 30 (λ=632.8nm); after optimized design, the carbon fiber reflector The diameter-to-thickness ratio of the mirror is 7.5:1, that is, the total thickness of the mirror is 47mm, the mirror base adopts a triangular lightweight design, the wall thickness and rib thickness are both 2mm, and the thickness of the mirror panel is 5mm. The preparation process of the reflector is as follows:

[0068] Step 1. First, use Invar as the material to prepare a triangular lightweight mirror base mold according to the carbon fiber mirror to be prepared, and then coat the release agent HD-9182 on the surface of the mirror base mold to obtain a release layer. Lay 168 layers of carbon fiber woven fabrics on the release layer (the carbon fiber woven fabrics are woven by M40JB ...

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Abstract

The invention relates to a preparation process of a carbon fiber reflector, belonging to the technical field of optical element preparation. The technical problem that the preparation process of the carbon fiber reflector in the prior art is not suitable for the preparation of large-diameter spherical mirrors and aspheric mirrors, and the surface shape precision of the prepared carbon fiber reflector is low is solved. The technique of the present invention is to adopt corresponding moulds, respectively, to prepare the reflector substrate and the reflector panel. During the preparation process, the [Q6]s quasi-isotropic lay-up method is used to lay the carbon fiber lay-up, and the vacuum injection molding process is used in the reflector A resin layer is attached to the mirror panel; then the mirror substrate and the mirror panel are bonded to obtain a mirror blank, and finally the carbon fiber mirror is prepared through inspection, coating, and polishing in sequence. The process is simple to operate, easy to replicate, and not limited by the shape of the mirror. The prepared carbon fiber mirror has reliable performance, good stability, high surface shape accuracy, and low weight. It has broad application prospects in the field of space remote sensing technology.

Description

technical field [0001] The invention relates to a preparation process of a carbon fiber reflector, belonging to the technical field of optical element preparation. Background technique [0002] Carbon fiber mirror has the advantages of low density, excellent thermal performance, high specific strength and high specific stiffness, etc. It can be made into a thin structure or a hollow structure (such as a honeycomb structure). Therefore, compared with metal mirrors and glass Mirrors, etc., can better meet the requirements of lightweight optical mirrors, so in recent years, they have been widely used in the field of optical remote sensing. [0003] In the prior art, the manufacturing process of the carbon fiber reflector is to bond the optical thin glass reflector surface on the carbon fiber reflector base. For example, Peng Wenchen and others from the Shanghai Institute of Technical Physics, Chinese Academy of Sciences published the process of manufacturing light-weight space...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/08
CPCG02B5/08
Inventor 李宗轩左玉弟金光邢利娜解鹏
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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