共查询到18条相似文献,搜索用时 171 毫秒
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震源药柱用低爆速炸药的研制 总被引:4,自引:4,他引:0
文章根据地震勘探震源药柱对低爆速炸药的要求 ,确定炸药的组分、配方及其混药工艺 ,产品经 2 3m井下传爆试验表明 ,该炸药爆速满足 16 0 0 m· s-1~ 2 30 0 m· s-1的要求 ,起爆和传爆性能可靠 相似文献
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低爆速炸药震源药柱的配方研究 总被引:1,自引:0,他引:1
低爆速炸药震源药柱是一种新型内部装填低爆速炸药(1800 m*s-1~2000 m*s-1)的成型药柱.低爆速炸药具有不含任何猛炸药,安全环保,其爆速可调范围大的特点.文中讨论了低爆速炸药震源药柱的配方设计,并给出了低爆速炸药的爆炸特征数据.经在煤田地震勘探生产中使用,证明低爆速炸药震源药柱是一种理想的炸药震源. 相似文献
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含退役火药新型高爆速震源药柱配方和工艺的研究 总被引:1,自引:0,他引:1
根据退役发射药品种、规格型号、性质不同,解决发射药粉碎和推进剂切割加工技术的问题.含退役火药乳化炸药以(O)60mm内装药,配置150g传爆药柱,产品密度在1.40 ~1.43 g/cm3之间,爆速可达到6300 m/s,爆炸连续性达12kg.通过实验数据,分析了发射药粉粒度、密度、装药直径对爆速的影响.在上述配方基础上压入推进剂,可使密度提高到1.47 g/cm3,爆速达到7300 m/s以上,同时储存期可达到2年以上,性能优于铵梯高爆速震源药柱,成本低廉,无污染.为退役火药的综合利用开辟新途径. 相似文献
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新铝2号是把高能氧化剂NH_4ClO_4(以下简称AP)用于混合炸药中的一种高爆热、高威力、低感度的压装型含铝炸药。该炸药采用包覆工艺解决了AP感度高不能直接使用的技术关键;采用热混工艺解决了混药不均匀的矛盾;采用粒状FLP_(1-4)铝粉解决了片状FLX_(2-2)铝粉粉尘问题。也就是说,采用了与国外不同的包覆方法,不同的包覆剂,不同的包覆工艺,取得了更好的包覆效果,采用不同的主炸药设计了性能优越的含AP的炸药。该炸药的主要技术指标和爆炸性能明显地优于梯恩梯、2号岩石及AⅨ-Ⅱ炸药。将新铝2号炸药压制成φ60×60毫米的药柱,可用于石油勘探震源弹。曾在河北某地试用过该种震源弹,结果为3公斤震源弹激发的能量与12公斤硝铵炸药相当或稍强。 相似文献
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研究了一种含双基发射药的低爆速炸药。这种炸药以双基发射药作为敏化剂,以硝酸铵作为氧化剂,二者混合后形成低爆速炸药。炸药由质量分数为75%~80%的硝酸铵、15%~22%的双基发射药、1%~5%的密度调节剂和1%~3%的工艺添加剂组成。试验表明,在低爆速炸药中,随双基发射药质量分数的不同,可制备出满足不同需求的低爆速炸药产品。产品密度控制在0.76~1.02 g/cm3之间,爆速在1 500~2 200 m/s之间,猛度在8.8~9.7 mm之间,殉爆距离达到4 cm。分析探讨了双基发射药的含量、粒度、密度、直径等对爆速的影响。 相似文献
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临界直径是确定炸药合理装药直径、预防炸药拒爆和不完全爆轰的重要指标,对炸药性能提高和高效利用有着十分重要的意义。设计了一种连续压导探针和楔形装药装置,在对炸药爆速进行测试的同时,利用炸药在临界直径不完全爆轰的特征,通过寻找爆轰波传播的拐点确定炸药临界直径。试验结果表明:装药密度为0.9g/cm3的铵油炸药爆速为3 261 m/s,临界直径为12.5 mm。提供了一种可同时测得炸药爆速和临界直径的方法,该方法简单,试验费用低,对炸药参数测试具有一定的指导意义。 相似文献
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To investigate the structure and performance of simple and double bases propellants, the nitrocellulose (NC), nitroglycerin (NG), and double mixed system (NC+NG) have been simulated by using the molecular dynamics (MD) method with the COMPASS force field. The interactions between NC and NG have been analyzed by means of pair correlation functions. The mechanical properties of the three model systems, i.e. elastic coefficients, modulus, Cauchy pressure, and Poisson's ratio, etc., have been obtained. It is found that the rigidity, ductibility, and tenacity of the double bases propellants (NC+NG) are stronger than those of simple base propellants (NC), which attributes to the effect of NG and the strong interactions between NC and NG. The detonation properties of the three systems have also been calculated and the results show that compared with the simple base propellant (NC), the detonation heat and detonation velocity of the double base propellants (NC+NG) are increased. 相似文献
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为了提高六硝基六氮杂异伍兹烷(CL-20)基温压炸药的能量水平和安全性能,通过分析温压炸药爆炸反应历程,开展了CL-20基压装型温压炸药的设计及性能研究。结果表明:CL-20基压装型温压炸药装药密度2.015 g/cm3、爆热8 361 kJ/kg、爆速7 815 m/s,30 kg炸药爆炸时在远场12 m处的冲击波超压可对人员达到中度以上的毁伤;且其撞击感度8%,摩擦感度24%;在慢速烤燃、快速烤燃、12.7 mm子弹撞击试验中,炸药响应等级均为燃烧反应,爆轰性能和安全性能优异。 相似文献
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D.C. Mann 《Journal of hazardous materials》1983,7(3):259-280
There is a continuing need to increase the velocity and associated terminal performance of kinetic energy ammunition as tougher armor targets are encountered. Application of a deterrent, or burning rate reducer, into the surface of standard propellants, together with appropriate changes in geometry and loading density, has been suggested as a means of increasing velocity by as much as ten percent. The attainment of such a desirable performance gain is critically dependent on the deterrent's satisfying certain requirements: (1) chemical compatability with the base propellant, (2) sufficient penetration of the base propellant, (3) diffusion stability of the deterred region over an extended time, (4) ignitability of the deterred layer, (5) sufficient decrease in burning rate. Unfortunately, there exists only a minuscule data base on the way deterrents behave when applied to various base propellants. The deterred propellants used in small arms and anti-aircraft guns were developed by a cut-and-try technique, and the sort of data required for rational design of large caliber weapons systems, e.g. burning rates in the deterred region, is extremely scarce. Since we lack an appropriate data base we have used thermochemical calculations and burning rate estimates to identify promising deterrent/base propellant combinations. The burning rate estimates were based on empirical fits to available closed bomb and strand burner tests with small arms propellants. Several promising deterrent systems are presented, including five candidates which exhibit a decrease in burning rate with no decrease in propellant energy. On the basis of these theoretical predictions, an experimental deterrent coating and analysis study has been initiated at Radford Army Ammunition Plant. 相似文献