Long-second Delay Structure in Open Combustion Environment
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摘要:为实现某弹丸用非电点火管在长度尺寸受限下的长秒延期功能，以及敞开式燃烧环境下的可靠点传火和延期输出，开展了延期体、点传火序列设计，并进行发火及延期时间测试。结果表明：设计的延期体可以实现切长27～30mm、17～28s的长秒延期；研制的高能密封点火药适用于敞开式点火和延期类火工品；高能密封点火药-中速延期药-慢速延期药（体）的点传火序列有助于敞开式燃烧环境下单芯延期体中钨系高段延期药的可靠点火与稳定燃烧。
Abstract:To realize long-second delay function of a projectile igniter tube with limited length, as well as the reliable ignition and delay output in open combustion environment, the designs of delay parts and ignition sequence were carried out, and tests of ignition and delay time were completed. The results show that the long delay time of 17 ~ 28s is realized while the cutting length of delay parts is 27 ~ 30mm, the designed high-energy sealed ignition powder is suitable for open ignition and delay initiating devices. The ignition sequence of high-energy sealed ignition powder-medium speed delay composition-slow speed delay composition (parts) is helpful to the reliable ignition and stable combustion of tungsten high-stage delay composition, which is charged in single core delay parts under open combustion environment.
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