NTO 含量对 RDX 基含铝炸药机械感度及爆速的影响

摘要

The RDX-based aluminized explosives with different contents of 3-nitro-1,2,4-triazol-5-one(NTO)were prepared.The sensitivities and detonation velocity of the RDX-based aluminized explosives were tested by the explo-sion probability method and the electrometric methods.Effect of the NTO content on the mechanical sensitivities and detonation velocity of RDX-based aluminized explosive was studied.The results show that with increasing the NTO content,the mechanical sensitivities of aluminized explosive decrease obviously,the impact sensitivity decreased from 34% to 2%,the friction sensitivity decreased from 30% to 2%;the detonation velocity decreases with increas-ing the NTO content at the same density.When the mass fraction of NTO is 35%,the detonation velocity decreased to 7 764 m/s,which decreased by 169 m/s compared with the RDX-based aluminized explosive without NTO.%制备了不同3-硝基-1，2，4-三唑-5-酮（NTO）含量的 RDX 基含铝炸药，用爆炸概率法和电测法测试了其机械感度和爆速，研究了 NTO 含量对 RDX 基含铝炸药机械感度和爆速的影响。结果表明，随着 NTO 含量的增加，含铝炸药的机械感度明显降低，撞击感度由34％降至2％，摩擦感度由30％降至2％；在相同密度下，随着NTO 含量的增加，含铝炸药的爆速降低，当 NTO 质量分数为35％时，爆速降至7764 m／s，与不含 NTO 的 RDX基含铝炸药相比，降低了169 m／s。