玻璃微球含量对乳化炸药爆轰性能的影响

Effect of Glass Microsphere Content on Detonation Properties of Emulsion Explosive

为探究玻璃微球含量对乳化炸药爆轰性能的影响,通过显微镜、测时仪、铅柱压缩测试、水下爆炸测试等手段,对不同含量玻璃微球对乳化炸药的微观结构、爆速、临界直径、猛度及水下爆炸能量等的影响进行了试验研究。结果表明:乳化炸药的爆速、猛度、水下爆炸能量均随玻璃微球含量的增加先增大后减小,玻璃微球含量为3%时相关参数达到最大值,分别为4452.34m/s、17.1mm、3.07MJ·kg^(-1),并且乳化炸药爆轰感度最高,临界直径最小为12mm;炸药爆速与玻璃微球含量、装药直径在一定范围内满足关系方程;相比气泡能,玻璃微球含量对炸药冲击波能的影响更大。

In order to explore the influence of glass microspheres content on detonation performance of emulsion explosive,the effects of different contents of glass microspheres on the microstructure,detonation velocity,critical diameter,brisance and underwater explosion energy of emulsion explosive were experimentally studied,by means of microscope,time meter,lead column compression test and underwater explosion test.The results show that the detonation velocity,brisance and underwater explosion energy of emulsified explosive first increase and then decrease with the increase of the content.When the content of glass microspheres is 3%,the relevant parameters reach the maximum value,which are 4452.34m/s,17.1mm and 3.07MJ·kg^(-1)respectively,as well as the detonation sensitivity of emulsion explosive is the highest,and the minimum critical diameter is 12mm.The detonation velocity of explosive,the content of glass microspheres and the diameter of charge satisfy the relational equation within a certain range.Compared with bubble energy,the content of glass microspheres has a greater influence on the shock wave energy of explosives.