药头质量分布对电引火药头发火时间精度的影响

Effect of the Fusehead Mass Distribution on Ignition Delay Precision of the Electric Fusehead

电引火药头发火时间是影响火工品延期精度的重要因素。制备药头药剂质量固定的电引火药头,统计质量分布;模拟药头发火环境,制备样品,测试不同质量水平药头的发火时间。结果表明:在现有生产工艺条件下,药头质量成正态分布,整体质量比工厂控制水平偏大,发火时间随质量变化在6.1 ms左右波动,在质量分布较为集中的15.74 mg区域附近,药头发火时间波动小,精度高。

The ignition delay time of the electric fusehead is the key factor on the delay precision of the initiating explosive device. The electric fuseheads of fixed agent mass were prepared and their mass distribution was counted. Test samples which simulate the ignition environment of fusehead for ignition delay time were prepared,and then the delay time of different mass level of the fusehead was tested. The results indicate that in existing production technology the mass of fusehead which is higher than the factory overall control level is a normal distribution,and the ignition delay time fluctuates around 6. 1ms varying with the mass for which in the concentrated mass distribution area of nearby 15. 74 mg,the fluctuation of the ignition delay time of the fusehead is smaller and its precision is higher.