铝粉含量和粒径对乳化炸药作功能力的影响

Effect of Aluminum Content and Particle Size on the Power of Emulsion Explosives

为研究铝粉对乳化炸药作功能力的影响,在负氧平衡的乳化炸药中分别添加不同含量和粒径的铝粉,采用测时仪法测定其爆速;通过水下爆炸实验计算出含铝乳化炸药的比冲击波能、比气泡能和总能量等参数。结果表明,当铝粉(粒径为5μm和35μm)质量分数为5%时,含铝乳化炸药的爆速最大,分别为5 128、5 071m/s;当铝粉(粒径为5μm和35μm)质量分数为20%时,乳化炸药的比冲击波能、比气泡能、总能量均随着铅粉含量的增加而增大,比冲击波能分别增加19.7%、15.3%;比气泡能分别增加12.6%、13.7%,总能量分别增加15.1%、14.5%。

To study the effect of aluminum powder on the power of emulsion explosives,aluminum powder with different particle size and content were added into emulsion explosive with negative oxygen balance.The detonation velocity of the explosive was measured by a timing instrument method and the specific shock wave energy,specific bubble energy and total energy etc.parameters for aluminized emulsion explosive were tested and calculated by underwater explosion experiment.The results show that when the mass fraction of aluminium powder with particle size of 5μm and 35μm in emulsion explosive is 5%,their detonation velocity achieves maximum 5 128m/s and 5 071m/s,respectively.The specific shock wave energy,specific bubble energy and total energy increase with the increase of aluminum content.When the mass fraction of aluminium powder with particle size of 5μm and 35μm in emulsion explosive is 20%,their specific shock wave energy increases by 19.7% and 15.3%respectively,specific bubble energy increases by 12.6% and 13.7%,respectively,and total energy increases by 15.1% and 14.5% respectively.