Warhead active fragment with sealing layer and preparation method and application thereof

A warhead and sealing layer technology, applied to explosives, etc., can solve the problems of high reaction critical speed and low loading ratio, and achieve the effects of improving production efficiency, simplifying process, and improving damage efficiency

Active Publication Date: 2020-10-16
昆明铂生金属材料加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of tubular shells to encapsulate rare earth hydrides has problems such as high reaction critical velocity and low filling ratio. At the same time, although the end is sealed with a threaded end cap, the slow release of hydrogen from the rare earth hydrides cannot be avoided.

Method used

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  • Warhead active fragment with sealing layer and preparation method and application thereof
  • Warhead active fragment with sealing layer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] A warhead active fragment with a sealing layer, the active fragment includes a shell, a rare earth hydride, a strong oxidant and a sealing layer;

[0031] The shell is a hollow cuboid, and there is a cross grid inside the shell, that is, the cross grid divides the inner cavity of the hollow cuboid into four cavities in the height direction of the cuboid;

[0032] The rare earth hydride is preferably cerium hydride, with a particle size of 10 μm;

[0033] The strong oxidizing agent is ammonium perchlorate;

[0034] Rare earth hydrides and strong oxidants are alternately filled in different cavities of the shell; as figure 1 shown;

[0035] The material of the shell is Ta, the wall thickness of the shell is 0.3mm, and the wall thickness of the grid is 0.3mm.

[0036] A kind of preparation method of the warhead active fragment with sealing layer is:

[0037] (1) Put Ta 2 o 5 The powder is mixed with PMMA and added with water to prepare Ta 2 o 5 slurry. The slurry ...

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Abstract

The invention relates to a warhead active fragment with a sealing layer and a preparation method and application thereof. The preparation method comprises the following steps: firstly, injecting a fluorine polymer composite material into a pipe with an inner wall grid in a hot-pressing manner, and fully matching the shape of a unit cell of the pipe with the inner wall grid and fully sealing due tothe flowability of a polymer; and secondly, the fluorine polymer composite material can also excite chemical reaction in the high-speed collision process so that the damage efficiency is further improved. As for a traditional method for pressing a pipe with an inner wall grid into a steel end cap, high machining precision requirements exist for matching between the end cap and the pipe, and compared with a fluorine polymer composite material hot-pressing method, packaging can be suitable for pipes with inner wall grids in different shapes, the process is simplified, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a warhead active fragment with a sealing layer and a preparation method and application thereof, in particular to a sealing method for encapsulating a rare earth hydride active fragment with a grid pipe. Background technique [0002] Rare earth hydrides will also undergo violent chemical reactions when in contact with water, releasing a lot of heat, and using them to make active fragments, especially for warheads targeting water targets, has great potential. However, rare earth hydrogenated substances are brittle, and rare earths will become brittle after burning in a hydrogen atmosphere to form hydrides, and will be broken into fine particles. Therefore, when preparing active fragments, they need to be encapsulated in a structural shell to ensure the penetration performance of the fragments. At present, steel is usually used to prepare tubular shells loaded with rare earth hydrides, and sealed by end caps to obtain active frag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/06
CPCC06B33/06
Inventor 赵修臣李辰昊谭成文
Owner 昆明铂生金属材料加工有限公司
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