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利用铁板加热试验和照相观测方法，通过提取铁板特定温度下样品的发火延滞期，获得炸药在此测试系统下的活化能及相关热分解动力学参数。研究表明，炸药爆炸延滞期和环境温度密切相关，在一定程度上延滞时间与样品活化能有相对应的趋势，延滞期长，活化能较高。“,”Based on iron heating experiment and photographic observation method,the activation energy and the related thermal decomposition kinetic parameters of the explosive in the test system are ob-tained by extracting the ignition demurrage of the iron samples under specific temperature.The results show that explosive demurrage and environmental temperature are closely related with each other,to some extent,the delay time and the activation energy are tend to corresponding with other,they have the tend-ency of correspond,the demurrage is long,the activation energy is high.