铝粉含量和粒度对HMX基炸药空爆性能的影响  

Effect of Content and Particle Size of Aluminum Powder on the Air Blast Property of HMX-based Explosive

作　　者：封雪松[1] 冯晓军[1] 赵娟[1] 田轩[1] FENG Xuesong;FENG Xiaojun;ZHAO Juan;TIAN Xuan(Xi＇an Modem Chemistry Research Institute Shaanxi Xi＇an,710065)

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《爆破器材》2018年第4期10-15,共6页Explosive Materials

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.

关 键 词：含铝炸药 微米铝粉 纳米铝粉 空爆 超压 冲量 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]