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一种新型的破甲战斗部装药-聚奥黑炸药是以HMX/RDX二种单质炸药为主体炸药的压装高聚物粘结炸药,其主要特点是可以通过改变HMX/RDX的组成比例,得到不同爆炸能量的系列化产品,更为突出的是,合理选择HMX/RDX比例,使PBX装药具有与HMX相近的高爆炸能量,而成本费用大幅度降低,经过在破甲战斗部中应用试验表明,聚奥黑炸药的装药密度高,破甲威力大,是一种适合装填各类破甲战斗的新型装药。 相似文献
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一种含LLM-105的HMX基低感高能PBX炸药 总被引:4,自引:0,他引:4
研究了不同颗粒形态的LLM-105对HMX的降感作用以及HMX/LLM-105基炸药配方用的黏结体系和钝感体系.设计出一种HMX/LLM-105配方,采用机械感度和冲击波感度以及板痕试验和圆筒试验对其安全性能和爆轰性能进行了测试.结果表明,LLM-105可作为含能钝感剂用于HMX基PBX炸药,该种含LLM-105的HMX基PBX爆速约8700 m/s、爆压34 GPa以上、比动能为1.560 kJ/g,冲击波感度比JOB-9003炸药低10%,是一种新型的低感高能炸药. 相似文献
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提出了二次爆炸杀伤战斗部的概念并阐述了其相关作用原理,用实验验证了二次爆炸杀伤战斗部原理的可行性.针对选定的炸药装药,设计了二次爆炸杀伤战斗部的实验弹结构,利用高速摄影机拍摄实验弹的爆炸过程,确定二级装药在一级装药爆炸作用下是否发生XDT或DDT、测量起爆延迟时间和二级装药发生爆轰时其距初始位置的距离.结果表明,当有机玻璃隔板厚度值为50~80 mm时,二级装药发生稳定的XDT或DDT,起爆延迟时间为2 125~11 000 μs,二级装药产生的位移为252~645 mm;采用钝感炸药装药,在特定的条件下会发生起爆时间更长的爆轰.XDT或DDT原理可应用于杀伤战斗部技术,提高杀伤破片的分布密度和速度. 相似文献
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DNTF基熔铸炸药的性能研究 总被引:21,自引:12,他引:21
通过相图分析,研究了DNTF/TNT作为液相载体炸药的可能性,并对DNTF/TNT、DNTF/TNT/HMX以及DNTF/TNT/HMX/A1体系的典型配方进行了能量表征和讨论。结果表明,DNTF基熔铸炸药是一种很有前途的高能混合炸药,可满足多种武器装药的高威力要求。 相似文献
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为了对常用组分构成的炸药燃烧转爆轰(DDT)过程进行预估,采用熔铸工艺制备了P1(40%TNT/60%RDX)、P2(40%DNTF/40%HMX/10%TATB/5%Al/5%添加剂)、P3(25%DNTF/40%AP/30%Al/5%添加剂)3种混合炸药,采用浇注工艺制备了P4(30%RDX/30%AP/30%Al/10%添加剂)炸药,用同轴电离探针测试技术对4种炸药进行了DDT试验,从DDT管的破碎状态、DDT过程中波阵面传播速度及爆轰转变距离分析了DDT响应特征。结果表明,炸药P1、P2、P3发生了DDT,爆轰转变距离范围分别为750~825mm、375~450mm、675~750mm,炸药P4未发生DDT;炸药P2的DDT管破裂最剧烈,炸药P3次之,炸药P1最小,表明DDT管的破碎程度与炸药的爆压正相关;炸药配方中含有热分解温度接近的组分,使热分解放热量快速叠加,促使燃烧状态失稳,提高燃烧向爆轰的转变;浇注成型工艺由于存在惰性添加剂对炸药组分的隔离包覆和吸热作用,降低了炸药由燃烧向爆轰转变的可能性。 相似文献
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为了提高TNT/HMX熔铸炸药的装药质量,将HMX进行微/纳米粒度级配后应用于TNT基熔铸炸药中。分别采用场发射扫描电子显微镜(FESEM)和固体密度排水法研究了HMX微/纳米粒度级配对TNT/HMX(质量比为40∶60)熔铸炸药的微观结构与密度均一性的影响;测试了含不同HMX微/纳米粒度级配的TNT基熔铸炸药的抗压强度、抗拉强度、撞击感度、摩擦感度和爆速。结果表明,与采用单一粗颗粒HMX(d_(50)=100μm)所制备的TNT基熔铸炸药相比,当采用质量分数15%纳米级HMX(d_(50)=100nm)、15%微米级HMX(d_(50)=5μm)、70%粗颗粒HMX(d_(50)=100μm)时,制备的TNT基熔铸炸药药柱内部缺陷少,密度均一性好,抗压强度提高200%,抗拉强度提高128%,撞击感度降低45.5%,摩擦感度降低46%,爆速增加32m/s,表明综合性能得到明显提高。 相似文献
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从炸药装药装备现状看21世纪发展趋势 总被引:10,自引:5,他引:5
介绍了国外高能混合炸药的装备现状,分析了21世纪炸药装药的发展趋势。认为应继续发展以RDX、HMX为主体的高能混合炸药,加强低易损性炸药包括分子间炸药的研制,并积极发展燃料空气炸药。 相似文献
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《Propellants, Explosives, Pyrotechnics》2017,42(7):784-790
One‐dimensional plate impact experiments have been performed to study the double shocks to detonation transition and Hugoniot state in the HMX‐based explosive JOB‐9003. The flyer was a combination of sapphire and Kel‐F, which can pass two different pressure waves into PBX Explosive JOB‐9003 sample after the impact. The particle velocities at interface and different depths in the JOB‐9003 sample were measured with Al‐based electromagnetic particle velocity gauge technique, thus obtaining particle velocity‐time diagram. According to the diagram, the corresponding Hugoniot state can be determined based on the particle velocity and shock wave velocity in the sample. Comparing with sustained pulse experiments, PBX Explosive JOB‐9003 shows desensitization feature due to the pre‐pressed shock wave. 相似文献
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The effect of the initial particle size on the deflagration to detonation transition (DDT) of pressed, confined explosives has been studied. The explosives examined were ground tetryl, RDX, picric acid, waxed RDX, and waxed HMX. The ground tetryl was studied over the range of 61%−90% theoretical maximum density (TMD); most of the rest of the comparisons were made at 70% TMD. It was found that the initial particle size (or particle size distribution) δ affected the predetonation column length ℓ, the relative time to detonation, and even the apparent mechanism of DDT. Available data in the literature in conjunction with the present results indicate that the curves ℓ versus %TMD at constant δ , and ℓ versus δ at constant %TMD both exhibit a minimum. 相似文献
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Xiao‐Yong Ding Yuan‐Jie Shu Ning Liu Min‐Jie Wu Jian‐Guo Zhang Bing‐Wang Gou Hai‐Min Wang Cai‐Ling Wang Shu‐Nan Dong Wei Wang 《Propellants, Explosives, Pyrotechnics》2016,41(6):1079-1084
The high energy density compound octahydro‐1,3,5,7‐tetranitro‐1,3,5,7‐tetrazocine (HMX) and the strong exothermic compound LiH represent an excellent principal explosive and an active fuel, respectively. Herein, the energetic characteristics of HMX‐based explosives are explored by adding LiH as fuel additive. The detonation parameters of HMX‐based explosives containing LiH were tested with free‐field explosion experiments and compared with those of traditional TNT, HMX, and aluminized explosives. The results show that the explosives exhibit higher energy and present preferable explosion effect when LiH is added as an explosive ingredient. The improvement of impulse is more than 32.8 % at 2 m. The shock wave peak overpressure increases by almost 40 % at a distance of 3 m from detonation center specially for the explosive containing both LiH and Al additives. Elemental H and Li are expected to release tremendous energy to effectively improve the explosives instant damage power, but the detonation duration is shorter than that of Al‐containing mixed explosives, which may limit the advantage over Al in the impulse. Li2CO3 powder is the solid product of HMX/LiH, which explains the LiH oxidation during the explosion. The exothermic processes in the formation are the reason for the increased energy of HMX/LiH explosives. These results can provide guidance to a potential energetic system formed by HMX and LiH. 相似文献
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Jatinder Kaur Vandana P. Arya Gurvinder Kaur Tusharkanti Raychaudhuri Prem Lata 《Propellants, Explosives, Pyrotechnics》2012,37(6):662-669
The paper presents and compares two methods for the synthesis of fine particles of the high explosives HNS and HMX by ultrasonic treatment and solvent/antisolvent crystallization. The effect of ultrasonic treatment on the particle size of explosives was studied by varying the amplitude and frequency of ultrasonication for different time periods using an ultrasonic probe and an ultrasonic bath. Solvent/antisolvent recrystallization was performed by varying the process parameters including stirring rate, antisolvent temperature etc. In addition to FT‐IR spectroscopy and thermal analysis by TGA/DSC; the particle size and shape of fine powders of the explosives HMX and HNS were determined using particle size analysis and scanning electron microscopy (SEM). Ultrasonic treatment of the probes resulted in the finer grains of HMX compared to solvent‐antisolvent crystallization. However in the case of HNS, solvent‐antisolvent crystallization produced finer particles compared to ultrasonication. 相似文献
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Daniel O. Asante Shinhyuk Kim Jooseung Chae Hyounsoo Kim Min Oh 《Propellants, Explosives, Pyrotechnics》2015,40(5):699-705
The handling, storage and safety before deployment of explosives are major key issues that confront the ammunition industry. Precautions have to be taken not to cause premature detonations and fatal accidents by studying their thermal behaviour. Research has been conducted to investigate the thermal stability of some secondary explosives such as RDX, HMX and TNT and their response to thermal stimuli. For the fact that real experiment which involves large amount of explosives can be potentially dangerous, cook‐off numerical simulation and experiment has been regarded as the best method to analyse such thermal behaviour of explosives. Prominent among these researches involve experiment and numerical analysis such as ODTX, SITI, and DDT experiments. In this work, numerical CFD simulation will be executed for the thermal behaviour of TNT including cook‐off and thermal decomposition. The heating rates were varied for both slow and fast cook‐off cases. In view of these thermal decomposition reactions which mainly consist of kinetic parameters were factored in the numerical simulation as well as the critical thermodynamic physical properties. To effectively handle the reactions, UDF was employed. Attention was paid on the melting time to ignition of explosive, the location likely for ignition occurrence, as well as temperature distribution in the course of the heating process. CFD simulation results showed that the location of ignition was around the supplementary charge. 相似文献
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In order to understand the reaction kinetics of HMX/AP/Al ternary system, the different distribution of AP in HMX/AP/Al explosives was realized by two different preparation techniques. Detonation test results show that the detonation velocity, explosion heat and detonation pressure of HAP samples are higher than those of HAl samples, but the extent of improvement is not high, not more than 5 %. The results of scanning electron microscopy showed that AP in HAP samples was distributed on the surface of HMX crystal. AP were dispersed around HMX crystals in HAl samples. The experimental results of explosive fireball performance show that the fireball expansion speed of HAP samples is better than that of HAl samples, demonstrating a good fireball effect. Underwater test results show that the shock wave peak pressure and bubble pulsation period of HAP samples increase by 3.06 % and 7.95 % respectively, and shock wave energy and bubble energy increase by 9.8 % and 25.42 % compared with bubble energy. The experimental results show that HAP samples are superior to HAl samples in accelerating ability of Al flies. The dispersion of AP on the HMX crystal surface promotes the energy release of HMX/AP/Al explosives more. 相似文献
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聚奥-X是以HMX为基的新型传爆药,其特点是感度高而可调,药柱弹性变形小,是目前HMX类传爆药中综合性能是好的一种。本文重点论述了聚奥-X工艺研究中原料的粒度、粒度级配与冲击波感度的关系。 相似文献