摘要
为了分析不同铝粉含量及颗粒尺寸对炸药空中爆炸性能的影响,笔者利用含铝炸药的自由场空爆试验,测试了不同配方的含铝炸药空爆超压、正压作用时间和空爆冲量,对试验结果进行了比较分析。对于HMX基含铝炸药,铝粉的质量分数为30%~35%时,超压和冲量较高;当铝粉的质量分数超过35%时,超压和冲量趋于降低。自由场传感器测定结果显示,超压和冲量在4.5 m的较远距离处、铝粉的质量分数约30%时有最大值。当铝粉的质量分数约为30%时,含纳米铝粉炸药的超压和冲量低于含微米铝粉炸药。
In order to research the effect of contents and particle sizes of Al powder on the air blast property of explosive,over-pressure,pressing time and impulse of aluminized explosives with different formula were tested and compared in this article. The result shows that explosive containing Al at the range of 30%-35%（ mass fraction） has higher over-pressure and impulse than other explosive. With the increase of Al content（ mass fraction is higher than 35%）,overpressure and impulse decrease. Free-field sensor shows that explosive containing 30% Al（ mass fraction） gives rise to the highest over-pressure and impulse values in 4. 5 m distance. Moreover explosive containing 30% nano-Al（ mass fraction）has lower over-pressure and impulse than explosive containing micro-Al.
作者
封雪松
冯晓军
赵娟
田轩
FENG Xuesong;FENG Xiaojun;ZHAO Juan;TIAN Xuan(Xi＇an Modem Chemistry Research Institute Shaanxi Xi＇an,710065)
出处
《爆破器材》
CAS
北大核心
2018年第4期10-15,共6页
Explosive Materials
关键词
含铝炸药
微米铝粉
纳米铝粉
空爆
超压
冲量
aluminized explosives
micro-aluminum
nano-aluminum
air blast
over pressure
impulse
