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Antenna radar cover and preparation method thereof

A radome and antenna technology, applied in the direction of the radiation unit cover, etc., can solve the problems of easy corrosion, weak wave transmission ability, affecting the use of radar antennas, etc., and achieve the effect of high mechanical strength and high wave transmission rate

Active Publication Date: 2012-09-12
河北盛伟基业玻璃钢集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Radar radomes made of metal materials are heavy in weight, difficult in transportation and installation, weak in wave penetration, easy to corrode, require maintenance, and high in production costs, so the usage is gradually decreasing
The FRP radome not only has the characteristics of corrosion resistance and good electrical insulation performance, but also has the characteristics of light weight, convenient transportation, installation and maintenance; The module structure above makes the material thickness of the radome vary, and the use of composite materials is unreasonable, resulting in poor wave penetration ability of the radome, which affects the use of the radar antenna

Method used

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  • Antenna radar cover and preparation method thereof
  • Antenna radar cover and preparation method thereof
  • Antenna radar cover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1 Preparation of glass fiber sheet

[0029] First the 1520SMC resin of 25 parts by weight, the low-shrinkage polyvinyl acetate of 9 parts by weight, the filler that the particle size of 50 parts by weight is 1250 purpose aluminum hydroxide, the 600 purpose superfine acicular wollastonite short fiber of 8 parts by weight and 6 parts by weight of fillers made of glass microspheres with a particle size of 1250 mesh were added to the stirrer for stirring, and then added to it were 1.5 parts by weight of BYK-9010 and 0.25 parts by weight of each of BYK-966 and W-996. Process auxiliary agent, be respectively the solidifying agent that 0.045 weight part is made of peroxidized resin butyl ester and the thickener made of magnesium oxide, the zinc stearate release agent of 0.20 weight part are stirred to form resin paste, then The resin paste is evenly poured on 25 parts by weight of alkali-free glass fiber with a length of 15-25 mm to make a glass fiber sheet with a thickne...

Embodiment 2

[0038] Step 1 Preparation of glass fiber sheet

[0039] First, 20 parts by weight of 198SMC resin, 10 parts by weight of low shrinkage resin composed of 35% polystyrene and 65% polyethylene, 36 parts by weight of aluminum hydroxide with a particle size of 1250 mesh and 8 parts by weight of 800 mesh ultrafine The filler made of short needle-shaped wollastonite fibers is added to the mixer for stirring, and then the process additives consisting of 1.3 parts by weight of BYK-9010 and 0.2 parts by weight of W-966 are added, respectively 0.048 parts by weight The curing agent made of butyl peroxide resin and the thickener made of magnesium oxide, the glass fiber reinforced plastic release agent of 0.18 parts by weight are stirred evenly to form a resin paste, and then the resin paste is evenly poured on the length of 26 parts by weight On the alkali-free glass fiber of 15-25 mm, a glass fiber sheet with a thickness of 2.6 mm matching the mold specification is made;

[0040] The se...

Embodiment 3

[0048] Step 1 Preparation of glass fiber sheet

[0049] First the 198SMC resin of 21 parts by weight, the low-shrinkage polyvinyl acetate of 12 parts by weight, the 1000 purpose ultrafine acicular wollastonite short fibers of 9 parts by weight and 6 parts by weight of aluminum hydroxide with a particle size of 30 parts by weight A filler made of glass microspheres with a particle size of 1200 mesh was added to the agitator for stirring, and then a process aid consisting of 1.2 parts by weight of BYK-9010 and 0.5 parts by weight of BYK-966 and W-996 was added thereto. agent, respectively 0.050 parts by weight of a curing agent made of butyl peroxide resin and a thickener made of magnesium oxide, and 0.15 parts by weight of a glass fiber reinforced plastic release agent are stirred evenly to form a resin paste, and then the resin paste is evenly poured On the alkali-free glass fiber with the length of 27 parts by weight at 15-25 millimeters, make the glass fiber sheet with the t...

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Abstract

The invention belongs to the technical field of antenna radar fittings, and particularly discloses an antenna radar cover and a preparation method thereof. The preparation method comprises the following steps of: preparing a glass fiber sheet material by SMC (Sheet Molding Compound) resin, low shrink resin, fillers, a process assistant, a thickener, a release agent and an alkali-free glass fiber through a die; carrying out die assembling, curing and pressing the glass fiber sheet material to form a regularly dodecahedral or icosahedral sheet board, or a hemispherical panel and a spherical table cylinder; and then splicing to obtain a spherical antenna radar cover with a hemispherical cross section. The antenna radar cover not only has a high mechanical property and can be used in a severeenvironment, but also further has a higher wave transmission rate and is good for use of radar.

Description

technical field [0001] The invention belongs to the technical field of radar accessories, and in particular relates to an antenna radome and a preparation method thereof. Background technique [0002] In order to adapt to bad weather and climate, a cover body is installed on the radar antenna used in sea areas, borders, airports, docks and weather stations to form a radome. Commonly used radome is made of special metal material or composite material (FRP). Due to the heavy weight of the radome made of metal materials, difficulty in transportation and installation, weak wave penetration ability, easy corrosion, need for maintenance, high production costs, the usage is gradually decreasing. The FRP radome not only has the characteristics of corrosion resistance and good electrical insulation performance, but also has the characteristics of light weight, convenient transportation, installation and maintenance; The module composition above makes the thickness of the material c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42
Inventor 郑振营郑超王艳瑾户秋红王健张艳丽
Owner 河北盛伟基业玻璃钢集团有限公司
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