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用连续爆速法测定工业炸药爆速 总被引:3,自引:0,他引:3
采用电测法和连续速度探针法分别测量了粉状乳化炸药和乳化炸药的平均爆速和连续爆速.结果表明,粉状乳化炸药在装药密度为850 kg·m-3和820 kg·m-3时,平均爆速分别为4526 m·s-1和4020 m·s-1; 稳定爆轰时连续爆速范围分别为4300~4600 m·s-1和4000~4300 m·s-1.乳化炸药在装药密度为900 kg·m-3和840 kg·m-3时,平均爆速分别为4384 m·s-1和2345 m·s-1; 连续爆速范围分别为3370~4592 m·s-1和2871~3420 m·s-1.显然,平均爆速测试结果与连续爆速的测试结果吻合很好,且连续速度探针法能满足准确测量工业炸药在装药结构中爆速连续变化的要求. 相似文献
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金属爆炸焊接用低爆速膨化铵油炸药实验研究 总被引:1,自引:0,他引:1
将膨化硝铵与柴油按94.55.5质量比混制为铵油炸药,并与混合稀释剂按不同质量比混合后,以自然堆积状态和不同的铺设药厚,测量混合炸药爆速和密度.结果显示,当稀释剂含量从20%增加到60%时,混合炸药的爆速(药厚:30 mm)由3100 m·s-1降到2100 m·s-1,炸药的密度也由0.615 g·cm-3增加到0.76 g·cm-3(稀释剂含量: 20%~50%);稀释剂含量为50%的混合炸药,当药厚在25~50 mm范围内时,爆速保持在2300~2360 m·s-1之间.用含35%稀释剂的混合膨化铵油炸药对SS304/16MnR进行的爆炸焊接试验表明,该混合炸药能够用于金属材料的爆炸焊接. 相似文献
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超细钝感HMX小尺寸弯曲装药爆速亏损研究 总被引:1,自引:0,他引:1
为了研究超细化钝感HMX在小尺寸弯曲装药条件下的爆速亏损现象,从理论上推导了爆速亏损与装药曲率半径的关系式,并通过试验分别测定了在沟槽尺寸为0.6 mm×0.6 mm、0.8 mm×0.8 mm时的弯曲装药爆速亏损,利用最小二乘法确定了两种尺寸下爆速亏损与装药曲率半径的半经验关系式分别为D|d=0.6=(D|d=0.6)/(DJ)·(0.753)/(Rd0.6)、 D|d=0.8=(D|d=0.8)/(DJ)·(0.734)/(Rd0.6).研究表明,弯曲装药爆速亏损的经验表达式和半经验表达式能较好地吻合. 相似文献
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为了进一步简化弹药结构,提高武器系统安全性和可靠性,对影响柔性导爆索多点同步起爆网络输出性能的主要参数——爆速和爆压进行了研究。利用探针法,采用时间间隔测试仪对柔性导爆索爆速进行测试,探讨了靶距对爆速测试结果的影响,结果发现,影响柔性导爆索爆速的主要因素是装药密度、约束强度和装药直径,在同样条件下,银导爆索比铅导爆索的爆速明显提高。研究了微型H型锰铜压力计测试导爆索爆压的方法,结果表明,只有极小尺寸下爆压变化与约束材料有关,利用这些结果,能更精确地设计柔性爆炸网络。 相似文献
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介绍了一种爆轰感度高,抗静电,装药性能优良的传爆药,性能测试与应用试验结果表明,该药传爆可靠,爆轰波形对称性好。 相似文献
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Mohammad Hossein Keshavarz 《含能材料》2006,14(6)
1 IntroductionThe detonation products are largely gases, which inhigh temperature and high pressure regime, are highlynon-ideal. Detonation parameters such as pressure andvelocity can be calculated by a computer code, e.g. TI-GER[1], which uses a database of thermodynamic charac-teristics of explosion products and initial composition ofhigh explosives. Moreover, empirical correlations can al-so be used to determine important properties of energeticcompounds[2]. Some new methods have also bee… 相似文献
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Mohammad Hossein Keshavarz 《含能材料》2006,14(6):449-452
A new method for prediction of Gurney velocity of explosives is introduced in which energy output is correlated with the heat of detonation, the number of moles of gaseous products of detonation per gram of explosive and the average molecular weight of gaseous products. It is assumed that the CHNO explosive reacts to form products composed of N2 , CO, H2O, CO2, H2,O2 and C(s) as determined by the oxygen balance of the unreacted compound. Good agreement is obtained between measured and calculated values of Gurney velocity as compared to previous correlations which assumed the reaction products to consist of N2 , H2O, CO2 and either C(s) or O2. 相似文献
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