某火工装置窜火原因分析及解决方法研究

摘要

为解决某火工装置窜火问题，通过对该装置的结构及作用原理进行分析，确定导致该火工装置窜火的主要原因是火药气体产生的压力使盖板发生位移，造成结构板与盖板的结合面出现缝隙，高温高压气体沿缝隙进入抛撒药盒引燃了抛撒药。通过优化设计及合理安排生产工艺等措施对火工装置进行了性能改进，经试验验证，改进措施有效解决了火工装置的窜火问题。%To solve problem of flame over of some pyrotechnics device, through analyzing on structure and action principle of the device, the reason of the problem was found. It showed that the cover plate was moved by pressure generated by the gunpowder gas, then the gap emerged between structure slab and cover plate, the high temperature and pressure gas seeped into the projection powder case through the gap, and ignited the projection powder. Meanwhile, the performance of the device was improved by optimization design and manufacturing technique, and test results show that the problem was solved effectively.