A kind of high-energy ignition powder and preparation method thereof

A kind of ignition powder, high-energy technology, applied in explosives, offensive equipment, non-explosive/non-thermal agent components, etc., can solve the problems of reduced ignition performance of ignition powder, complex formula of high-energy ignition powder, etc., and achieve moderate burning speed and mechanical sensitivity. The effect of easy, low mechanical sensitivity

Active Publication Date: 2017-03-22
PLA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the formula of high-energy ignition powder that can achieve reliable ignition of iron-aluminum thermite is usually relatively complicated, and because it contains a small amount of thermite itself, the ignition performance of the ignition powder itself is reduced

Method used

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  • A kind of high-energy ignition powder and preparation method thereof

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Embodiment 1

[0028] : A high-energy ignition powder, comprising the following components in parts by weight: 20 parts of magnesium powder, 40 parts of barium nitrate powder, 20 parts of barium peroxide powder, 3 parts of shellac, 1 part of drying oil, and dehydrated alcohol; and The volume to mass ratio of absolute ethanol to shellac is 2.5ml / g.

[0029] Among them, the particle size of magnesium powder, barium nitrate powder and barium peroxide powder is 80-100 mesh.

[0030] A kind of preparation method of above-mentioned high-energy ignition powder, this method comprises the following steps:

[0031] (1) Weighing: take each component raw material according to parts by weight;

[0032] (2) Mixed powder:

[0033] a) crushing barium nitrate salt, drying, and sieving to 80-100 mesh;

[0034] b) dissolving shellac in absolute ethanol, and then heating the solution to 55-65°C while stirring to obtain an ethanol solution of shellac;

[0035] c) Mix the magnesium powder with dry oil for 7-1...

Embodiment 2

[0041] A high-energy ignition powder of the present invention comprises the following components in parts by weight: 25 parts of magnesium powder, 50 parts of barium nitrate powder, 25 parts of barium peroxide powder, 5 parts of shellac, 2 parts of drying oil, and dehydrated alcohol and the volume to mass ratio of absolute ethanol to shellac is 5.5ml / g.

[0042] In this embodiment, the particle size of magnesium powder, barium nitrate powder and barium peroxide powder is 80-100 mesh.

[0043] The invention also discloses a preparation method of high-energy ignition powder, which comprises the following steps:

[0044] (1) Weighing: take each component raw material according to parts by weight;

[0045] (2) Mixed powder:

[0046] a) crushing barium nitrate salt, drying, and sieving to 80-100 mesh;

[0047] b) dissolving shellac in absolute ethanol, and then heating the solution to 55-65°C while stirring to obtain an ethanol solution of shellac;

[0048] c) Mix the magnesium...

Embodiment 3

[0053] A kind of high-energy ignition powder of the present invention comprises the following components according to parts by weight: 21.5 parts of magnesium powder, 32 parts of barium nitrate powder, 21.5 parts of barium peroxide powder, 3.5 parts of shellac, 1.15 parts of drying oil, no water ethanol, and the volume to mass ratio of absolute ethanol to shellac is 3ml / g.

[0054] In this embodiment, the particle sizes of the magnesium powder, barium nitrate powder and barium peroxide powder are all 80-100 mesh.

[0055] A kind of preparation method of high-energy ignition powder of the present invention, the method comprises the following steps:

[0056] (1) Weighing: take each component raw material according to parts by weight;

[0057] (2) Mixed powder:

[0058] a) crushing barium nitrate salt, drying, and sieving to 80-100 mesh;

[0059] b) dissolving shellac in absolute ethanol, and then heating the solution to 55-65°C while stirring to obtain an ethanol solution of ...

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Abstract

The invention discloses a high-energy ignition agent and a preparation method thereof. The high-energy ignition agent comprises, by weight, 20-25 parts of magnesium powder, 40-50 parts of barium nitrate powder, 20-25 parts of barium peroxide powder, 3-5 parts of shell-lac, 1-2 parts of drying oil and anhydrous ethanol. A volume-mass ratio of anhydrous ethanol to shell-lac is in a range of 2.5-5.5ml / g. The high-energy ignition agent has low mechanical sensitivity, can be stored and transported easily and has a low ignition point, a strong ignition capability and a high self-combustion temperature.

Description

technical field [0001] The invention relates to an ignition powder, in particular to a high-energy ignition powder and a preparation method thereof. Background technique [0002] Ignition powder is a kind of pyrotechnic agent (such as high heat agent, lighting agent, smoke agent, etc. ) or other agents (such as delaying agents, propellants, etc.) . [0003] Pyrotechnic agent specifically refers to pyrotechnic agents that can produce high heat effects such as thermite reactions. It is made of a mixture of metal powder and metal oxides that can react with the metal powder. Pyrotechnic agents are usually difficult to ignite, and all thermites have the same ignition point. Above 800-1000°C, the ignition point of common iron-aluminum hyperthermic agents even reaches 1300°C, so it cannot be ignited with matches, fuses and ordinary ignition powders. Usually, for the ignition of the iron-aluminum high heat agent, it is necessary to increase the ignition charge layer (transition c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B33/14C06B23/00
Inventor 郭涛丁文季茂荣谢兴博毛益明谢全民李裕春张卫平沈蔚杨力马华原郑宙刘欣秦伟纶
Owner PLA UNIV OF SCI & TECH
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