论文部分内容阅读
为了研究老化对炸药性能的影响,对自然贮存的3种熔铸炸药TNT/RDX、TNT/RDX/Al和TNT/HMX/Al进行了加速老化试验。通过扫描电镜、真空安定性试验研究了老化前后3种炸药的微观形貌和安全性能,并测试了老化前后3种炸药的感度和爆速。结果表明,老化后炸药颜色变深,体积膨胀,质量变轻。样品的放气量小于2mL/g,热感度变化也较小。机械感度的变化与炸药组分和老化方式有关。TNT/RDX的爆速随着贮存时间的增加而降低,与整体加速老化情况一致,TNT/RDX/Al和TNT/HMX/Al的爆热随贮存时间的增加变化趋势相反,说明两者老化机理可能不同。
In order to study the effect of aging on the properties of explosives, accelerated aging tests were conducted on three kinds of naturally stored explosives TNT / RDX, TNT / RDX / Al and TNT / HMX / Al. The scanning electron microscope and vacuum stability test were used to study the microstructure and safety of three explosives before and after aging. The sensitivities and detonation velocities of three explosives before and after aging were tested. The results show that after aging, the color of explosives becomes deeper, the volume expands and the quality becomes lighter. Sample deflation volume is less than 2mL / g, thermal sensitivity changes are also smaller. Changes in mechanical sensitivity and explosive components and aging methods. The detonation velocity of TNT / RDX decreased with the increase of storage time. Consistent with the overall accelerated aging, the detonation of TNT / RDX / Al and TNT / HMX / Al tended to be reversed with the increase of storage time, indicating that the aging mechanism of both different.