A kind of preparation method of high temperature resistant foam a sandwich composite radome
A composite material and radome technology, applied in the directions of antennas, antenna parts, radiation unit covers, etc., to avoid breakage or cracking, ensure preparation accuracy, and ensure reliable connection.
Active Publication Date: 2021-11-02
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology
[0007] The object of the present invention is to provide a high temperature resistant foam A sandwich composite radome and its preparation method. The foam is integrally formed with the inner and outer skins as the forming mold, which solves the problem of precise molding of the foam A sandwich radome. The reinforcement layer is laid on the root, which improves the strength of the root and is easy to connect
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[0035] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.
[0036] Such as figure 1 As shown, the high-temperature-resistant foam A sandwich composite radome is composed of an outer skin 1, a foam core 2, an inner skin 3 and a reinforcement layer 4, wherein the foam core 2 is attached to the inner skin 1; the reinforcement layer 4 is set At the bottom of the foam core layer; the outer skin 1 is wrapped around the foam core layer and the reinforcement layer; the outer skin 1, inner skin 3 and reinforcement layer 4 are made of fiber-reinforced resin-based composite materials, and the foam core layer 2 is made of high-temperature-resistant resin Foam.
[0037] In the fiber-reinforced resin-based composite material, the reinforcing fibers include quartz fibers, low-dielectric glass fibers, and high-silica fibers; the resins include silicon-containing aryne resins, polyarylea...
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Abstract
The invention discloses a high-temperature-resistant foam A interlayer composite material radome and a preparation method thereof, and relates to the technical field of resin-based composite material structure molding technology. The radome is composed of an outer skin, a foam core layer, an inner skin and a reinforcement layer. The outer skin, inner skin and reinforcement layer are made of fiber-reinforced resin-based composite materials, and the foam core layer is made of high-temperature-resistant resin foam; the outer skin and inner skin After the skin is prepared and formed, the outer skin and inner skin are used as molds to realize the integral molding of the foam core layer, which ensures the preparation accuracy of the sandwich radome and avoids the influence of the gap between the skin and the core layer on the strength and performance of the radome; The root of the radome requires a high load, and a thickened layer is laid on the root to improve the structural strength of the root of the radome and facilitate the connection and assembly of the radome. The invention solves the high-precision preparation problem of high-temperature-resistant foam A sandwich composite radome, satisfies the high-temperature-resistant and high-strength work requirements of the sandwich radome, and is convenient to implement.
Description
technical field [0001] The invention relates to the technical field of resin-based composite material structure molding technology, in particular to a high-temperature-resistant A sandwich composite radome and a preparation method thereof. Background technique [0002] In order to improve the precision strike, anti-jamming and multi-target capabilities of guided weapons, countries around the world are competing to adopt ultra-wideband guidance technology to expand the working frequency band of the guidance system to ultra-wideband. As a key link in the guidance system, the development of ultra-wideband radome has become a bottleneck problem that needs to be solved urgently. Traditional radome mostly adopts a solid half-wave wall structure, which has the advantages of high strength and good wave transmission performance at specific frequency points, but it is difficult to achieve broadband wave transmission because of its narrow wave transmission frequency band and heavy weig...
Claims
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IPC IPC(8): H01Q1/42
CPCH01Q1/424
Inventor 曾照勇李昕俞玉澄巫婕妤眭韵
Owner SHANGHAI RADIO EQUIP RES INST