HMX颗粒特性对压装PBX苏珊感度的影响  

Effect of Particle Character of HMX on Susan Sensitivity of HMX-based Pressed PBX

作　　者：李玉斌[1] 李金山[1] 向永[1] 徐瑞娟[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《火炸药学报》2012年第4期19-22,共4页Chinese Journal of Explosives & Propellants

摘　　要：采用苏珊试验测试了HMX基压装PBX炸药在低速撞击下的感度,研究了HMX的晶体品质、颗粒尺寸等对PBX撞击感度的影响。结果表明,HMX晶体品质的提高有利于提升PBX的反应阈值速度;在晶体品质相当的情况下,当HMX颗粒由20μm增大到105μm时,PBX的苏珊撞击响应的阈值速度由47m/s升至59m/s,而撞击响应的程度有一定下降。苏珊试验中存在一个临界撞靶速度(约100m/s),低于该速度,含高品质HMX的PBX反应程度小于含普通品质HMX的PBX;高于该速度,含高品质HMX的PBX反应程度则大于含普通品质HMX的PBX。The sensitivity at low velocity impact of HMX-pressed PBX was measured by using Susan test.The influence of crystal quality and particle size of HMX on the Susan sensitivity of the PBX was studied.The results show that the velocity threshold for ignition of the PBX increases while the quality of HMX crystal improves.The velocity threshold of the PBX in Susan test increases from 47 m/s to 59 m/s when the particle size of high quality HMX increases from 20μm to 105μm,and the reaction violence after impact of the latter is less than that of the former.There is a critical velocity of about 100 m/s,below the velocity,the reaction violence of high-quality HMX-based PBX is less than that of commercial HMX-based PBX,whereas above and beyond the velocity this reaction violence of high-quality HMX-based PBX is more than that of commercial HMX-based PBX.

关 键 词：应用化学 PBX 感度 HMX 颗粒特性 苏珊试验 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]