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
View PDF4 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is no multi-frequency and broadband radome that pa

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] A method for forming a variable-density broadband wave-transmitting quartz composite ceramic radome cover includes the following steps:

[0028] 1) Design the radome cover according to the size and quality requirements of the cover. Its size is shown in the following table:

[0029] Table 1 The main dimensions of the product

[0030]

[0031] 2) Quartz glass fiber yarn is used as the outer layer material of the cover, and hollow quartz glass fiber yarn is used as the inner layer material. The outer layer material and the inner layer material are integratedly woven to obtain an inner and outer cover fabric;

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

Example Embodiment

[0039] Example 2

[0040] A method for forming a variable-density broadband wave-transmitting quartz composite ceramic radome cover includes the following steps:

[0041] 1) Design the radome cover according to the size and quality requirements of the cover. Its size is shown in the following table:

[0042] Table 1 The main dimensions of the product

[0043]

[0044] 2) Quartz glass fiber yarn is used as the outer layer material of the cover, and hollow quartz glass fiber yarn is used as the inner layer material. The outer layer material and the inner layer material are integratedly woven to obtain an inner and outer cover fabric;

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

[0046] The volume percentage of hollow quartz fiber yarn in the inner material is 25-30%, and the density of the hollow quartz fiber yarn is 190-198t...

Example Embodiment

[0053] Example 3

[0054] A method for forming a variable-density broadband wave-transmitting quartz composite ceramic radome cover includes the following steps:

[0055] 1) Design the radome cover according to the size and quality requirements of the cover. Its size is shown in the following table:

[0056] Table 1 The main dimensions of the product

[0057]

[0058] 2) Quartz glass fiber yarn is used as the outer layer material of the cover, and hollow quartz glass fiber yarn is used as the inner layer material. The outer layer material and the inner layer material are integratedly woven to obtain an inner and outer cover fabric;

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Densityaaaaaaaaaa
Densityaaaaaaaaaa
Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap