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Moulding method of variable-density broadband wave-transparent quartz composite ceramic antenna housing body

A technology of composite ceramics and molding methods, which is applied in the field of forming the broadband wave-transparent radome for missiles, can solve the problems of no multi-frequency and broadband, achieve good structural strength, good application prospects, and reduce antenna phase distortion Effect

Active Publication Date: 2015-03-25
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

[0004] However, there is no multi-frequency and broadband radome that passes through electromagnetic waves, multi-frequency and broadband waves.

Method used

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  • Moulding method of variable-density broadband wave-transparent quartz composite ceramic antenna housing body
  • Moulding method of variable-density broadband wave-transparent quartz composite ceramic antenna housing body
  • Moulding method of variable-density broadband wave-transparent quartz composite ceramic antenna housing body

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Experimental program
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Effect test

Embodiment 1

[0027] A method for forming a variable-density broadband wave-transparent quartz composite ceramic radome cover body, comprising the following steps:

[0028] 1) Design the radome cover according to the size and quality requirements of the cover, and its size is shown in the table below:

[0029] Table 1 Main product dimensions

[0030]

[0031] 2) Using quartz glass fiber yarn as the outer layer material of the cover, hollow quartz glass fiber yarn as the inner layer material, and integrating the outer layer material and the inner layer material to obtain a cover body fabric with two layers of inner and outer layers; wherein,

[0032] The volume percentage of quartz fiber yarn in the outer layer material is 40-45%, the density of quartz fiber yarn is 190-198tex, SiO 2 Content ≥ 99.92%, monofilament breaking strength ≥ 70KN; the volume percentage of hollow quartz fiber yarn in the inner layer material is 25-30%, the density of hollow quartz fiber yarn is 190-198tex, SiO 2...

Embodiment 2

[0040] A method for forming a variable-density broadband wave-transparent quartz composite ceramic radome cover body, comprising the following steps:

[0041] 1) Design the radome cover according to the size and quality requirements of the cover, and its size is shown in the table below:

[0042] Table 1 Main product dimensions

[0043]

[0044] 2) Using quartz glass fiber yarn as the outer layer material of the cover, hollow quartz glass fiber yarn as the inner layer material, and integrating the outer layer material and the inner layer material to obtain a cover body fabric with two layers of inner and outer layers; wherein,

[0045] The volume percentage of quartz fiber yarn in the outer layer material is 40-45%, the density of quartz fiber yarn is 190-198tex, SiO 2 Content ≥ 99.92%, monofilament breaking strength ≥ 70KN;

[0046] The volume percentage of hollow quartz fiber yarn in the inner layer material is 25-30%, and the density of hollow quartz fiber yarn is 190-19...

Embodiment 3

[0054] A method for forming a variable-density broadband wave-transparent quartz composite ceramic radome cover body, comprising the following steps:

[0055] 1) Design the radome cover according to the size and quality requirements of the cover, and its size is shown in the table below:

[0056] Table 1 Main product dimensions

[0057]

[0058] 2) Using quartz glass fiber yarn as the outer layer material of the cover, hollow quartz glass fiber yarn as the inner layer material, and integrating the outer layer material and the inner layer material to obtain a cover body fabric with two layers of inner and outer layers; wherein,

[0059] The volume percentage of quartz fiber yarn in the outer layer material is 40-45%, the density of quartz fiber yarn is 190-198tex, SiO 2 Content ≥ 99.92%, monofilament breaking strength ≥ 70KN; the volume percentage of hollow quartz fiber yarn in the inner layer material is 25-30%, the density of hollow quartz fiber yarn is 190-198tex, SiO 2...

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Abstract

The invention discloses a moulding method of a variable-density broadband wave-transparent quartz composite ceramic antenna housing body. The method comprises the following steps: according to dimension and quality request of the housing body, integrally weaving an outer material and an inner material to obtain an inner and outer housing body fabric; putting the housing body fabric in water to be cooked and soaking in acid liquor; then, putting the housing body fabric in an utensil filled with a silica sol for dipping and compounding; and finally machining a housing body blank to a required dimension to obtain the antenna housing body. According to the moulding method disclosed by the invention, the outer layer of the housing body fabric is woven by quartz fiber yarns, so that the volume percentage of the quartz fiber yarns is 40-45% while the inner layer of the housing body fabric is woven by hollow quartz fiber yarns, so that the volume percentage of the hollow quartz fiber yarns is 25-30%, therefore, the fiber volume percentages of the inner and outer layers of the housing body fabric are different. Meanwhile, the inner and outer layers are integrally attached and woven, the layering problem is avoided, and the housing body has relatively good structural strength is powerfully guaranteed as a result of relatively good strength of a reinforcement.

Description

technical field [0001] The invention relates to the technical field of forming a broadband wave-transmitting radome for missiles, in particular to a method for forming a variable-density broadband wave-transmitting quartz composite ceramic radome. Background technique [0002] With the continuous development of anti-missile technology, low-frequency warning radars, high-frequency missile guidance and gun aiming radars cover a wide frequency range of 0.1-40GHz, which puts forward higher requirements for new anti-radiation missile weapons . On the one hand, it is required to have a wide-band operating range in order to combat the operational needs of various local radars; on the other hand, single-frequency and narrow-band terminal guidance are easy to be intercepted and have poor penetration capabilities. Multi-frequency and broadband terminal guidance are Improve the survival requirements of the high penetration capability of the new missile weapon system. Therefore, in or...

Claims

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Application Information

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IPC IPC(8): C04B35/82C04B35/14C04B35/622
Inventor 尹正帅郭培江张军佘平江王芬吴广力孙晓莉
Owner 湖北三江航天江北机械工程有限公司
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