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Casting-curing insensitive high-explosion-heat explosive and preparation method thereof

A solidified and insensitive technology, which is applied in the direction of nitrated acyclic/alicyclic/heterocyclic amine explosive composition, etc., can solve the problems of weak research on aluminum-containing casting PBX, achieve good viability, improve casting quality, The effect of high workability

Active Publication Date: 2013-05-01
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the most representative aluminum-containing explosive formula is a series of aluminum-containing pouring solidified PBX explosives represented by PBXN-109 developed by the United States. It has been widely used in various advanced conventional warhead charges abroad, but domestic Aluminum cast PBX research is still relatively weak

Method used

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  • Casting-curing insensitive high-explosion-heat explosive and preparation method thereof
  • Casting-curing insensitive high-explosion-heat explosive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A cast solidified insensitive high-explosive thermal explosive, the formula of which consists of: RDX: 65 parts, Al: 21.5 parts, HTPB: 7 parts, WAX: 2.85 parts, DOS: 3.11 parts, TDI: 0.54 parts.

[0035] The coarse and fine particle gradation adopted by RDX is as follows: coarse particles with a particle size ranging from 0.250 mm to 0.420 mm account for 61.5% of the mass of RDX, fine particles with a particle size of ≤0.05 mm account for 38.5% of the mass of RDX, and the particle size of the fine particles is ≤0.05 The particle content of mm is not less than 97% of the amount of fine particles; the particle size of fuel aluminum powder ranges from 0.005mm to 0.05mm.

[0036] The preparation method of the pouring solidification type insensitive high-explosive thermal explosive mainly comprises the following steps:

[0037] (1) Ingredients: Quantitatively weigh each component in the formula and set aside;

[0038] (2) Mix materials by feeding in batches and kneading: th...

Embodiment 2

[0060] A cast solidified insensitive high-explosive thermal explosive, the formula of which consists of: RDX: 65 parts, Al: 21.5 parts, HTPB: 7 parts, WAX: 2.85 parts, DOS: 3.11 parts, TDI: 0.54 parts.

[0061] The coarse and fine particle gradation adopted by RDX is as follows: coarse particles with a particle size range of 0.250 mm to 0.420 mm account for 64.6% of the mass of RDX, fine particles with a particle size of ≤0.05 mm account for 35.4% of the mass of RDX, and the particle size of the fine particles is ≤0.05 The particle content of mm is not less than 97% of the amount of fine particles; the particle size of fuel aluminum powder ranges from 0.005mm to 0.05mm.

[0062] The preparation method and the vacuum pouring device used are the same as in Example 1.

Embodiment 3

[0064] A cast solidified insensitive high-explosive thermal explosive, the formulation of which consists of: RDX: 65 parts, Al: 21.5 parts, HTPB: 6.85 parts, WAX: 3 parts, DOS: 3 parts, TDI: 0.65 parts.

[0065] The coarse and fine particle gradation adopted by RDX is as follows: coarse particles with a particle size range of 0.250 mm to 0.420 mm account for 64.6% of the mass of RDX, fine particles with a particle size of ≤0.05 mm account for 35.4% of the mass of RDX, and the particle size of the fine particles is ≤0.05 The particle content of mm is not less than 97% of the amount of fine particles; the particle size of fuel aluminum powder ranges from 0.005mm to 0.05mm.

[0066] The preparation method and the vacuum pouring device used are the same as in Example 1.

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Abstract

The invention discloses a casting-curing insensitive high-explosion-heat explosive which comprises the following components in parts by weight: 65 parts of hexogen, 21.5 parts of aluminum powder, 6-8 parts of binder, 2-3 parts of insensitive agent, 2.5-3.2 parts of plasticizer and 0.5-0.7 parts of curing agent. The hexogen is subjected to grain composition to improve explosive energy. The invention further discloses a preparation method of the explosive, which comprises the steps of batching, mixing, vacuum treatment and vacuum casting, and heating curing. The explosive has a higher explosion heat value, has good viability in hazardous environments such as shock, high temperature, bullets and detonation waves, and has the characteristics of high work capacity and high safety; and compared with PBXN-109 (plastic-bonded explosive-109), the solid content is higher, and the overall properties are equivalent.

Description

technical field [0001] The invention belongs to the field of energetic materials for military use, and in particular relates to a pouring solidification type insensitive high-explosive thermal explosive and a preparation method thereof. Background technique [0002] The heat of detonation is an important index to evaluate the damage effect of explosives on the target. In addition to selecting the main explosive with high detonation calorific value, the heat of detonation and afterburning effect of explosives are often improved by adding aluminum powder and other metal powders. Aluminum-containing explosives are a kind of high-density, high-explosive heat and high-power mixed explosives. Their non-ideal detonation and secondary reactions can exert greater power and destructive effects than ordinary charges under strong external constraints. They are mainly used In recent years, it is widely used in anti-runway submunitions, integral penetrating blasting bombs, ground penetrat...

Claims

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Application Information

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IPC IPC(8): C06B25/34
Inventor 关立峰李尚斌吴奎先罗观汤滢唐长兴兰昌义王冬磊
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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