Manufacturing method of miniature and thin-walled composite ceramic wave-transparent antenna housing

A technology of composite ceramics and manufacturing methods, which is applied in the direction of antennas and radiation unit covers suitable for movable objects, can solve the problems of harsh re-entry environment and difficulty in meeting the use requirements, and achieve improved uniformity and strong operability , Realize the effect of real-time detection

Active Publication Date: 2015-03-04
湖北三江航天江北机械工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the harsh re-entry environment and the temperature as high as 1000°C, traditional resin-based composite materials have been difficult to meet the needs of use

Method used

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  • Manufacturing method of miniature and thin-walled composite ceramic wave-transparent antenna housing
  • Manufacturing method of miniature and thin-walled composite ceramic wave-transparent antenna housing
  • Manufacturing method of miniature and thin-walled composite ceramic wave-transparent antenna housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for manufacturing a miniature and thin-walled composite ceramic wave-transparent radome, comprising the following steps:

[0035] 1) if figure 1 Said, according to the size requirements of the cover body 1, its size is as follows

[0036] Table 1 Main Dimensions of Cover Body

[0037]

[0038] And design the corresponding braided mandrel 2 (such as figure 2 shown) and select the quartz glass fiber yarn, remove the organic epoxy sizing agent on the surface of the quartz glass fiber yarn, and then use the quartz fiber yarn as raw material to carry out mold-fitting weaving on the braiding mandrel 2 to obtain a cover braid that meets the requirements ;

[0039] 2) Boil the braided fabric in ultrapure water for 40 hours, bake it at 200°C for 48 hours, and bake it at 200°C with oxygen for 6 hours, then soak the fabric in acid solution for 10 hours, After soaking in the acid solution, boil the cover fabric in water for 20 hours, then soak the cover fabric in w...

Embodiment 2

[0050] A method for manufacturing a miniature and thin-walled composite ceramic wave-transparent radome, comprising the following steps:

[0051] 1) if figure 1 Said, according to the size requirements of the cover body 1, its size is as follows

[0052] Table 1 Main Dimensions of Cover Body

[0053]

[0054] And design the corresponding braided mandrel 2 (such as figure 2 shown) and select the quartz glass fiber yarn, remove the organic epoxy sizing agent on the surface of the quartz glass fiber yarn, and then use the quartz fiber yarn as raw material to carry out mold-fitting weaving on the braiding mandrel 2 to obtain a cover braid that meets the requirements ;

[0055] 2) Boil the braided fabric in ultrapure water for 60 hours, bake it at 300°C for 24 hours, and bake it at 400°C with oxygen for 3 hours, then soak the fabric in acid solution for 10 hours, After soaking in the acid solution, boil the cover fabric in water for 15 hours, then soak the cover fabric in w...

Embodiment 3

[0066] A method for manufacturing a miniature and thin-walled composite ceramic wave-transparent radome, comprising the following steps:

[0067] 1) if figure 1 Said, according to the size requirements of the cover body 1, its size is as follows

[0068] Table 1 Main Dimensions of Cover Body

[0069]

[0070] And design the corresponding braided mandrel (such as figure 2 shown) and select the quartz glass fiber yarn, remove the organic epoxy sizing agent on the surface of the quartz glass fiber yarn, and then use the quartz fiber yarn as raw material to carry out mold-fitting weaving on the braiding mandrel 2 to obtain a cover braid that meets the requirements ;

[0071] 2) Boil the braided fabric in ultrapure water for 50 hours, bake it at 400°C for 36 hours, and bake it at 300°C with oxygen for 4 hours, then soak the fabric in acid solution for 15 hours, After soaking in the acid solution, boil the cover fabric in water for 18 hours, and then soak the cover fabric in...

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Abstract

The invention discloses a manufacturing method of a miniature and thin-walled composite ceramic wave-transparent antenna housing. The manufacturing method includes the following steps that: a corresponding braiding core model is designed according to size requirements of a housing body; quartz fiber yarns are adopted as raw materials so as to be attached to and braided on the braiding core model, so that required housing body braided fabric can be obtained; the housing body braided fabric is boiled in water, and then is socked in acid liquid, and finally is socked and composited in a container filled with a silica solution, and therefore, a housing body blank can be obtained; and a bonding part of a connecting ring and the housing body is processed, so that the miniature and thin-walled composite ceramic wave-transparent antenna housing can be obtained. According to the manufacturing method of the invention, mechanical processing is divided into coarse processing and fine processing, and therefore, processing quality of the surface of the housing body can be effectively ensured, and pits on the surface of the housing body are decreased significantly, and at the same time, the uniformity of the materials of the housing body can be improved; after mechanical processing every time, high temperature heat treatment is performed on the housing body blank, and therefore, organic impurities such as oil contamination by which the housing body blank is contaminated in a machining process can be effectively removed, and the performance of a product can be effectively ensured.

Description

technical field [0001] The invention relates to the technical field of preparation of a wave-transparent radome for missiles, in particular to a method for manufacturing a miniature and thin-walled composite ceramic wave-transparent radome. Background technique [0002] The radome is located at the head of the missile and is an important structural part of the missile body. It plays the role of load bearing, heat insulation, and wave penetration. It can withstand severe aerodynamic heating and aerodynamic loading in extremely harsh reentry environments. With good wave-transmitting performance, the protection antenna can work normally to ensure strike accuracy. [0003] Due to the harsh re-entry environment and the temperature as high as 1000°C, traditional resin-based composite materials have been difficult to meet the needs of use. At present, domestic materials that can meet the above requirements and are relatively mature in technology are mainly quartz ceramic materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/42H01Q1/28C04B35/14C04B35/622
Inventor 尹正帅张军王芬佘平江郭培江雷宁
Owner 湖北三江航天江北机械工程有限公司
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