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Manufacturing method of high-temperature-resistant ablation-resistant antenna housing body

An ablation-resistant and high-temperature-resistant technology is applied in the manufacturing field of the radome cover, which can solve the problems of poor stability of the high-temperature and anti-scouring coating, easy to fall off, and limited wide application, etc., to facilitate mass production and improve the bonding strength. , the effect of simple process

Active Publication Date: 2014-02-05
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

However, the stability of the high temperature and erosion resistant coating is poor, and it is easy to fall off in the harsh working environment, which limits its wide application.

Method used

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  • Manufacturing method of high-temperature-resistant ablation-resistant antenna housing body
  • Manufacturing method of high-temperature-resistant ablation-resistant antenna housing body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Process the silicon carbide composite ceramic material into such as figure 1 The shown end cap 1 has a post 11, and the post 11 is a hexagonal prism;

[0028] (2) Then the end cap 1 is fixed on the nylon braided mandrel 2 with the slot 21 matched with the clamp 11 through the clamp 11, and the quartz fiber braid 3 that meets the requirements is produced according to the thickness of the product. The end cap is woven on the head of the quartz fiber braid 3, forming a figure 2 original blank as shown;

[0029] (3) Pretreatment of the original billet: first boil it with high-purity water for 20 hours, dry it, and then roast it with oxygen at 320°C for 4 hours; then soak it in acid solution for 12 hours, and then soak it twice in high-purity water, 10 hours each time ; At last the original billet is dried; the acid solution is prepared by the volume ratio of 3:1 for the hydrochloric acid of the mass fraction 37% and the nitric acid of the mass fraction of 65%;

[00...

Embodiment 2

[0035] (1) Process the silicon nitride composite ceramic material into such as figure 1 The shown end cap 1 has a post 11, and the post 11 is a hexagonal prism;

[0036] (2) Then the end cap 1 is fixed on the nylon braided mandrel 2 with the slot 21 matched with the clamp 11 through the clamp 11, and the quartz fiber braid 3 that meets the requirements is produced according to the thickness of the product. The end cap is woven on the head of the quartz fiber braid 3, forming a figure 2 original blank as shown;

[0037] (3) Pretreatment of the original billet: first boil it with high-purity water for 30 hours, dry it, and then roast it with oxygen at 200°C for 6 hours; then soak it in acid solution for 20 hours; then soak it twice in high-purity water, 10 hours each time; Finally, the original billet is dried; the acid solution is prepared by the volume ratio of 36% hydrochloric acid and 70% nitric acid by mass fraction

[0038] (4) Put the pretreated original billet in a d...

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Abstract

The invention discloses a manufacturing method of a high-temperature-resistant ablation-resistant antenna housing body. The manufacturing method disclosed by the invention comprises the following steps: (1), preparing an end cap with a clamping column by adopting a high-temperature-resistant ablation-resistant material, wherein the clamping column is a prism with 5-7 lateral edges; (2), fixing the end cap on a woven core model with a clamping groove matched with the clamping column through the clamping column, and producing a quartz fibre woven body meeting the requirements to form an original billet; (3), poaching, roasting, acid-leaching, immersing and drying the original billet; (4), putting the dried original billet in silica sol, respectively immersing and compounding in vacuum and vibration states, and repeating the step for 4-8 times; and (5), sintering the immersed and compounded original billet, enabling the original billet to be ceramicized to form a crude billet, and machining to obtain the high-temperature-resistant ablation-resistant antenna housing body. The method disclosed by the invention is simple in process; the prepared high-temperature-resistant ablation-resistant antenna housing body can stand the tests of high-mach and long-endurance working conditions.

Description

technical field [0001] The invention relates to a method for manufacturing a radome cover body, in particular to a high-temperature-resistant and ablation-resistant radome that can be applied to the radome of a medium-to-long-range ground-to-ground cruise missile with high Mach (>7Ma) and long endurance (>1000s) Manufacturing method of the cover body. Background technique [0002] The radome is located at the head of the missile weapon system and is an important component of the entire weapon system. It has the functions of high temperature resistance, ablation resistance, load bearing, and wave penetration, and protects the missile weapon system from communication, telemetry, and guidance in harsh environments. , Detonation and other systems work normally. [0003] With the advancement of aerospace technology, the flight speed of missile weapons is getting higher and higher. At present, the flight speed of various advanced tactical missiles is more than 4Ma, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B37/00C04B35/80C04B35/622H01Q1/42
Inventor 尹正帅张军雷宁郭培江吴广力
Owner 湖北三江航天江北机械工程有限公司
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