粒度对HMX撞击感度的影响  

Influence of particle size on the impact sensitivity of HMX

作　　者：吕春玲[1] 张景林[1] 

机构地区：[1]华北工学院环境与安全工程系,山西太原030051

出　　处：《爆炸与冲击》2003年第5期472-474,共3页Explosion and Shock Waves

摘　　要：采用12型工具法对炸药粒度与HMX(Cyclotetramethylenetetranitramine,奥克托今)撞击感度的关系进行了研究,并对撞击起爆机理进行了分析和探讨。结果表明:HMX炸药粒度对撞击感度有显著影响,且随着炸药粒度的增大,其撞击感度呈增大趋势。点火阶段对撞击起爆过程起决定性作用,影响点火阶段的因素就是决定其撞击感度高低的关键因素。晶体内部的活性中心是炸药受撞击时的起爆点,而且大晶粒炸药中更易形成优先点火的活性中心。the influence of particle size on the impact sensitivity of HMX is studied by the 12type instrument method, and the mechanism of initiation of detonation is investigated. Results indicate that particle size greatly affects the impact sensitivity, and the impact sensitivity increases with the particle size. Ignition plays a determinant role in the impact detonation, and the factors that influence ignition are also the crucial ones that decide the impact sensitivity. Active centers in the crystal are the initiation points, and the bigger the crystal is, more easily the active centers will form.

关 键 词：HMX 撞击感度 粒度 12型工具法 炸药 撞击起爆 奥克托今 点火阶段 活性中心 爆炸力学 

分 类 号：TQ563[化学工程—炸药化工] O38[理学—流体力学]