塑料导爆管内腔气体介质对传爆可靠性的影响

利用变色塑料导爆管、氮气、氧气和真空系统对管腔内介质影响导爆管传爆可靠性做了研究。氧气有利于传爆，氮气不利于传爆。当导爆管内腔接近真空状态时（－0．0987MPa以下），导爆管仍可传爆，证明导爆管可以作为航天火工品使用。进一步证实导爆管传爆的必要条件是超前冲击波、管道效应以及支持爆轰波波阵面继续传播的足够能量，而导爆和内腔气体介质不是导爆管传爆的必要条件。

The Influence of Gaseous Medium Inside Nonel Tube on its Detonation Propagation Reliability

Color changing nonel tube, nitrogen, oxygen and vacuum system were used to study influence of gaseous medium inside nonel tube on its detonation propagation reliability. Oxygen has accelerating effects apparently on the detonation propagation of nonel tube but nitrogen hasn't. At the vacuum degree of not more than -0.0987MPa, stable detonation propagation of nonel tube were observed, this give a fact that nonel tube can be used as space flight pyrotechnics. It is verified that the leading shock waves, tunnel effect and enough energy to support the wave front are necessary condition for the detonation propagation of nonel tube, whereas gaseous medium inside nonel tube is not.