A near-clean compression molding and moisture-proof treatment method for a quartz composite ceramic radome with a sandwich structure
A technology of sandwich structure and composite ceramics, which is applied to antennas, ceramic products, antenna parts, etc., can solve the problems of long cycle, high cost, and inability to realize multi-layer structure integral molding, and achieve low cost, high molding efficiency, and excellent craftsmanship Highly designable effects
Active Publication Date: 2022-02-15
湖北三江航天江北机械工程有限公司
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Problems solved by technology
[0003] Quartz composite ceramic material is a brittle and high-hardness material. Its structural molding and precision machining are technical shortcomings. It is impossible to realize the integrated molding of multi-layer structures, and the cost is high and the cycle is long. It is urgent to develop new molding methods to meet the requirements of functional development.
Method used
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Embodiment Construction
[0024] The technical solution (including the preferred technical solution) of the present invention will be further described in detail below by listing some optional embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0025] The near-clean molding and moisture-proof treatment method of the sandwich structure quartz composite ceramic radome designed by the present invention is characterized in that it comprises the following steps:
[0026] S1, the short fiber quartz fiber yarn with a length of 10 mm to 30 mm prepared by wire drawing without sizing agent is soaked in 25% to 40% silica solid content high-purity silica sol at room temperature for 1 to 1.5 hours, and then taken...
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Abstract
The near-net molding and moisture-proof treatment method of the sandwich structure quartz composite ceramic radome designed by the present invention can be integrally formed in near-net dimensions, and has high molding efficiency and low cost. The density of each layer of the radome of the present invention is adjustable, and is suitable for forming more layers of radome. The process is highly designable, applicable to various broadband wave-transmitting functional requirements, and has heat-resistant performance. The invention has excellent moisture-proof effect, low carbon residual rate, does not lose the moisture-proof effect due to microcracks caused by long-time aging, and has simple process and low cost.
Description
technical field [0001] The invention belongs to the technical field of aerospace composite materials, and in particular relates to a near-clean molding and moisture-proof treatment method for a quartz composite ceramic radome with a sandwich structure. Background technique [0002] Located at the forefront of the missile, the missile radome is an important part of the radar guidance system, an integrated product of structure and function, and an important guarantee for the missile to achieve precise guidance under high-speed flight conditions. Quartz composite ceramics are currently the most mature application in radome at home and abroad, with excellent performance, high temperature resistance and high wave transparency. With the development of aerospace technology and the advancement of precision guidance technology for missile weapons, the missile radome presents a development trend of multi-media sandwich structure, realizing the integrated functions of broadband wave tr...
Claims
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IPC IPC(8): C04B38/00C04B35/80C04B35/82C04B35/14C04B35/622C04B41/84H01Q1/42
CPCC04B38/0045C04B35/82C04B35/14C04B35/622C04B41/495C04B41/84H01Q1/422C04B41/4543C04B41/4905C04B35/803
Inventor 吴广力贾曼莉王宇锋王芬佘平江任海成
Owner 湖北三江航天江北机械工程有限公司