外界气体压力对8701炸药燃烧影响研究

菜单

摘要炸药的燃烧和爆轰是相互联系的，爆轰是爆炸物不稳定燃烧的极端情况。爆炸物的稳定燃烧破坏之后，就有可能由燃烧转变成爆轰。研究爆炸物由燃烧转变为爆轰，不仅在理论上，而且在实际上都有重大的现实意义，如目前火工品行业中无起爆药雷管的研究，它需要研究克服的问题是：如何在最普通的条件下，使猛炸药尽快地由燃烧转变成爆轰，从而实现以单一的猛炸药拉装填雷管（无起爆药雷管），并确保该雷管具有优良的起爆性能和爆轰稳定性。另外，在某些行业中，有时爆炸物的燃烧转爆轰又是我们所不希望产生的现象。如火炮发射时，炮膛内火药的燃烧、火药生产车间或仓库的意外事故而造成的爆炸危险品着火燃烧等。为了不必要的损失，避免悲剧性灾难的发生，此时我们就必须防止它由燃烧到爆轰的转变，确保人民生命财产的安全。59840

对于爆炸物的燃烧转爆轰，由于爆炸物的物理化学性能不同，则它燃烧转变为爆轰的难易程度也不同。有的差别相当大，如起爆药与猛炸药，一般起爆药一经点燃，它在很低的压力下能迅速转变为爆轰，而猛炸药则不同，它必须在较高的压力下，经过一定燃烧加速时间才能转变为爆轰。另外对于不同状态的爆炸物，其燃烧转爆轰的过程也不完全相同。

本文通过研究8701炸药的燃烧模型，并以此推导端面燃烧药柱的燃烧公式，结合实验验证，从理论与实际上分析研究了8701炸药燃速与外界气体压力之间的关系。为炸药的安全使用给出了一定的指导方向。

毕业论文关键词燃烧转爆轰 DDT 高等内弹道模型 8701炸药炸药燃速与外界气体压力

毕业设计说明书（论文）外文摘要

Title Study About The Effects Of External Gas Pressure On Burning Of 8701 Explosive

Abstract

Deflagration and detonation of explosives are interrelated , detonation of explosives is the extreme case of unstable deflagration . If the stable detonation of explosive was destroyed , the it may turn into detonation from burning . Research on the deflagration into detonation of explosive , not only in theory but also in practice has great practical significance , for example , the study about no primary explosive detonators , it needs to overcome the problem: how can we make the explosive detonate in the most common condition as soon as possible , in order to achieve no primary explosive detonators and ensure that the detonation detonator has excellent performance and detonation stability . From another, in some industries, sometimes deflagration to detonation of explosives is a phenomenon that we do not want to produce. Such as the explosive burning in cannon when firing, and the accident of explosive fired In the gunpowder workshop or warehouse. In order to avoid damage and tragic disaster, We must prevent it by deflagration into detonation in order to ensure the safety of life and property.

For deflagration to detonation of explosives, because of the different in physical and chemical properties of explosives, the difficulty of deflagration to detonation is different. Sometimes the difference is quite large, for example , the primary explosive once ignited, it can be quickly converted to detonation at a low pressure , while the explosive needs higher pressure and more time. In addition, for different states of explosives, the process is also different.

In this paper, we analysis the effects Of external gas pressure on burning on 8701 explosive from the theory and practice by studying the combustion model of 8701 explosive and deduced the burning formula of face burning propellant and binding experiments verify the results, in order to guide the safe use of explosives.