Manufacturing technology of carbon fiber reflecting mirror
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A preparation process and mirror technology are applied in the field of preparation technology of carbon fiber mirrors, which can solve the problems that carbon fiber mirrors are not suitable for large-diameter spherical mirrors, and the surface shape accuracy of carbon fiber mirrors is low. The effect of improving the carrying capacity
Active Publication Date: 2016-12-07
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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[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
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[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 manufacturing technology of a carbon fiber reflecting mirror and belongs to the optical element manufacturing technology field. In the prior art, a manufacturing technology of a carbon fiber reflecting mirror is not suitable for manufacturing a large-caliber spherical mirror and an aspherical mirror, and surface shape precision of the manufactured carbon fiber reflecting mirror is low. By using the technology of the invention, the above technical problems are solved. The technology comprises the following steps of firstly, using a corresponding die to manufacture a reflecting mirror matrix and a reflecting mirror panel respectively; during a manufacturing process, using [Q6]s quasi isotropic layer mode to lay a carbon fiber layer, and using a vacuum injection molding technology so that a resin layer is attached to the reflecting mirror panel; then bonding the reflecting mirror matrix and the reflecting mirror panel to acquire a reflecting mirror billet; and finally carrying out detection, film coating and polishing successively so as to complete manufacturing of the carbon fiber reflecting mirror. The technology is simple to operate, is easy to copy and is not limited by a reflecting mirror shape. Manufactured carbon fiber reflecting mirror performance is reliable, stability is good, the surface shape precision is high and weight is light. The technology has a wide application prospect in the space remote sensing technology field.
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...
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Patent Type & Authority Applications(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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