Preparation process of a carbon fiber composite reflector
A composite material and preparation technology, which is applied in mirrors, instruments, optics, etc., can solve the problems of poor conductivity, inability to guarantee isotropic paving, layer angle error, etc., and achieve the effect of simple and easy preparation process
Active Publication Date: 2020-07-21
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
There are layer angle errors in the paving process of the existing preparation technology, which cannot guarantee quasi-isotropic paving, resulting in large astigmatic aberrations in the surface shape, and problems such as printing through, which eventually lead to the failure of the carbon fiber composite mirror blank Direct Coating Applications
In order to solve this problem, at present, the most widely used method is to coat the surface of the carbon fiber composite mirror blank with a metal layer, and the metal layer is processed to meet the surface shape accuracy requirements, but the conductivity of the carbon fiber composite mirror blank is poor, and the coating metal of the curved mirror blank Problems such as large internal stress make it difficult for the coating process to achieve the intended purpose
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] The parameters of the long-wave infrared carbon fiber mirror to be prepared are as follows: the thickness is 4.8 mm, the diameter is 200 mm, the radius of curvature is 700 mm, and the RMS surface accuracy is λ / 40 (λ=10.6 μm).
[0032] The preparation process of the above-mentioned long-wave infrared carbon fiber mirror is as follows:
[0033] Step 1, using indium steel as the material, grinding and processing, and making a concave mirror mold 1 with a diameter of 200 mm, a radius of curvature of 700 mm, and a surface shape of λ / 50 (λ=10.6 μm);
[0034] Step 2: Electroplate a silver layer 2 on the surface of the mold 1 with a thickness of 80 μm by using a coating process;
[0035] Step 3, using tools such as sandpaper that can increase the surface roughness, treat the side of the silver layer 2 that is not combined with the mold 1, so that the surface is completely roughened;
[0036] Step 4. According to the layup design and layup process requirements, the carbon fiber...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Layer thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a preparation process of a carbon fiber composite mirror. Indium steel matching the carbon fiber composite mirror is used as a material to prepare a mold with the same mirror structure as the carbon fiber composite mirror to be prepared; a layer of electroplating is applied on the surface of the mold Metal layer; using physical or chemical methods that can increase the surface roughness, treat the side of the metal layer that is not combined with the mold to make it completely rough; according to the lay-up design and lay-up process requirements, the carbon fiber composite The impregnated material is laid on the rough surface of the metal layer, the laid carbon fiber composite material prepreg is solidified and molded, and the mold is demoulded to obtain a carbon fiber composite reflector blank in which the metal layer and the carbon fiber composite material substrate are integrated; The mirror blank of the composite material reflector is ground, and the surface is coated with a metal reflective film to obtain a carbon fiber composite material reflector. The preparation process is simple and easy, and can be integrally formed.
Description
technical field [0001] The invention relates to the technical field of optical element preparation, and more specifically, relates to a preparation process of a carbon fiber composite reflector. Background technique [0002] Carbon fiber composite material belongs to carbon fiber reinforced resin matrix composite material. With its advantages of low density, high specific stiffness and high specific strength, it has been widely studied as a new generation of optical mirror body material. Most of the carbon fiber composite mirrors are prepared by molding and copying the optical grade mirror surface of the mold. There are layer angle errors in the paving process of the existing preparation technology, which cannot guarantee quasi-isotropic paving, resulting in large astigmatic aberrations in the surface shape, and problems such as printing through, which eventually lead to the failure of the carbon fiber composite mirror blank Direct coating applications. In order to solve t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G02B5/08
CPCG02B5/0808
Inventor 程路超张玥宫鹏刘震宇何锋赟
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI