delay element plays delay time role in delay detonator. Delay time precision is one of the most important indexes to embody delay performances. This essay aims to analyze the theory of the combustion process of delay element, searching the influence factors of delay time precision of the delay element. It also discusses on the influence of drawing on delay time precision of the delay element integrating theory with experiment data.%延期体在延期雷管中起着延时作用,延期时间精度则是体现延期体性能的重要指标之一。通过对延期体燃烧过程的理论分析,寻找影响延期体延期时间精度的因素。并从理论和实验数据出发,探讨拉拔对延期体延期时间精度的影响。
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