高品质压装HMX基PBX炸药的冲击波感度

摘要

To improve the safety properties of HMX-based polymer bonded explosive, the influence of the particle size of high quality HMX on the shock sensitivity of PBX was studied by a Gap Test. The results show that the shock sensitivity of the HMX-based pressed PBX with high relative density of 98. 5% TMD decreases by 7% when high quality PBXC(particle size 20μm)replacing normal HMX(particle size 30μm) ,and the shock sensitivity decreases by 13% when particle size of high quality HMX increases to 150μm. The shock sensitivity decreases by 24% with the relative density increase by 0. 9%.%为改善HMX基PBX的安全性能,通过隔板试验研究了高品质HMX的粒度对压装PBX炸药冲击波起爆性能的影响.结果表明·对于相对密度较高(98.5％TMD)的压装HMX基PBX,与普通品质(平均粒径30μm)相比,使用高品质HMX(20 μm)后PBX的冲击波感度下降了7％,当高品质HMX的粒度增至150μm后,其冲击波起爆感度下降13％；药柱的相对密度提高0.9％后,冲击波感度下降24％.