Manufacture method of high-precision carbon fiber composite antenna panel

An antenna panel and composite material technology, applied in the field of high-precision carbon fiber composite material antenna panel manufacturing, can solve the problems of low precision, heavy weight, long production cycle, etc., and achieve the effects of improved precision, light weight and good molding accuracy

Inactive Publication Date: 2014-02-05
CHINA ELECTRONICS TECH GRP NO 39 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method has heavy structure, high production cost and long production cycle
[0009] The aluminum antenna panel produced by the above technology, or the precision is not high, or the weight is heavy, can not meet the increasingly high demand for use

Method used

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  • Manufacture method of high-precision carbon fiber composite antenna panel

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Embodiment Construction

[0025] Describe the present invention below in conjunction with specific embodiment:

[0026] In this embodiment, the method for manufacturing a high-precision carbon fiber composite antenna panel adopts the following steps:

[0027] Step 1: Manufacture the skin mold according to the design drawing of the single antenna panel. The mold is the basis of composite material molding, and the mold material, structural form, processing accuracy, etc. directly affect the quality of the reflective surface. Since the mold is subjected to temperature changes from room temperature to about 150°C during the molding process. The thermal expansion and cold contraction of the mold body material will inevitably cause a certain internal stress on the part. Based on comprehensive analysis and calculation and referring to the experience of thermal deformation of molds in the past, nodular cast iron (QT600-3) was used to manufacture molds, and its linear expansion coefficient αl (20-200°C) was a...

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Abstract

The invention discloses a manufacture method of a high-precision carbon fiber composite antenna panel. According to the manufacture method, the high-precision carbon fiber composite antenna panel is manufactured by the steps of manufacturing with a die, forming a skin, forming a panel, assembling and protecting and the like. Compared with an existing panel manufacture technology, the manufacture technology of the high-precision carbon fiber composite antenna panel has the characteristics that a negative-pressure forming technology is used; by changing the panel material, the disadvantage of poor precision in manufacture of an aluminum alloy tensile skin is avoided, and the advantages of easy film adhesion and good forming precision of the carbon fiber material are brought into full play. Meanwhile, the antenna panel manufactured by the method is high in precision and light in weight.

Description

technical field [0001] The invention relates to the technical field of manufacturing reflective panels of radar antennas, in particular to a method for manufacturing high-precision carbon fiber composite material antenna panels. Background technique [0002] The antenna panel is the main unit that forms the reflective surface of the large-diameter antenna. The antenna panel is mainly composed of aluminum alloy materials such as skins, ribs, gusset plates, and corner pieces, and weighs about 25 kg. The skin is a reflection unit, and the rest of the parts play a solid role to ensure the surface shape of the skin. Traditional aluminum antenna panel manufacturing technologies mainly include the following: [0003] 1. Riveted panel [0004] This panel production method is to stretch and form aluminum alloy ribs and skins, and use riveted trusses or envelope riveting tires to assemble reflective panels. The root mean square error is generally about 0.3 to 0.5 mm. [0005] 2. Ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/38
CPCB29C70/345
Inventor 李宏顺靳武刚王莹郑光崇张林
Owner CHINA ELECTRONICS TECH GRP NO 39 RES INST
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