【摘要】 在提出热爆反应着火判据的基础上，对ＮｉＡｌ（Ｆｅ）体系的热爆过程进行了实验研究。对工艺参数如混合物的相对密度、Ａｌ粉的相对含量、Ａｌ粉粒度、加热速率、Ｆｅ的相对含量对热爆点温度和热爆延滞时间的影响做了分析。结果表明，对于反应物配比和混合物相对密度而言，均存在一最佳值，此时热爆反应速率最大，延滞时间最短更多还原

【Abstract】 The ignition criterion of thermal explosion is presented in this paper.NiAl(Fe) system is studied experimentally.The effects of the relative density of mixture,the content of Al particle,the size of Al particle,the heating rate,the content of dilution Fe on the thermal explosion point temperature and the thermal explosion delay time are analyzed.The results show that:to reactant ratio and relative density of mixture,there exists a optimum value,which the thermal explosion reaction rate is maximum and the delay time is minimum.更多还原