不同点火条件下DNTF与B炸药的燃烧转爆轰实验研究  

Experimental Study on DDT of DNTF and Composition B Explosives under Different Ignition Conditions

作　　者：罗一鸣 沈飞[1,2] 王辉 张蒙蒙[2] 王煊军[1] LUO Yi-ming;SHEN Fei;WANG Hui;ZHANG Meng-meng;WANG Xuan-jun(Rocket Force University of Engineering,Xi′an 710025,China;Xi′an Modern Chemistry Research Institute,Xi′an 710065,China)

机构地区：[1]火箭军工程大学,陕西西安710025 [2]西安近代化学研究所,陕西西安710065

出　　处：《火炸药学报》2022年第3期332-338,共7页Chinese Journal of Explosives & Propellants

基　　金：国家自然科学基金(No.12002266)。

摘　　要：为研究3,4-二硝基呋咱基氧化呋咱(DNTF)的燃烧转爆轰(DDT)过程,采用DNTF和B炸药进行对比,开展了4种点火条件下的DDT实验,测量了反应波阵面在DDT管中的传播过程,分析了点火药量对DNTF爆轰转变距离和爆轰转变时间的影响。结果表明,DNTF在点火药量为2.0、1.0、0.5g和0.25g条件下均能被点燃,并最终转变为稳定爆轰;随着点火药量从2.0g降低到0.25g,DNTF均能实现燃烧转爆轰,且爆轰转变距离无显著变化,均在120~150mm范围内,但引燃时间大幅度延长;而B炸药仅能在2.0g点火药量下被点燃,且未能增长为稳定爆轰,表明对于DNTF单质炸药,点火强度的变化可对其DDT过程中的低速热传导燃烧阶段产生显著影响。To study the deflagration to detonation transition(DDT)of 3,4-dinitrofurazanfuroxan(DNTF),DDT experiments under four ignition conditions were carried out by comparing DNTF and Composition B explosive.The propagation process of reaction wave front in DDT tube was measured,and the influence of ignition charge on detonation transition distance and detonation transition time of DNTF was analyzed.The results show that DNTF can be ignited when the ignition charge amount are 2.0,1.0,0.5 and 0.25g,and finally transformed into stable detonation.With decreasing the amount of ignition charge,there is no significant change in the detonation transition distance of DNTF,which is in the range of 120—150mm,but the detonation transition time is greatly prolonged.Composition B explosive can only be ignited when the ignition charge amount is 2.0g,and the combustion to detonation process is not completed,showing that for DNTF explosive,different ignition conditions have significant effect on the low-speed heat conduction combustion stage in the DDT process.

关 键 词：爆炸力学 3 4-二硝基呋咱基氧化呋咱(DNTF) B炸药 燃烧转爆轰 DDT 波阵面速度 爆轰转变距离 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O38[理学—流体力学]