【摘要】 通过对可燃药筒在密闭爆发器实验中所得到的ｐ～ｔ曲线起始段的分析，得出了不同可燃药筒点火性能的差异，并与热点火理论所得到的点火延迟时间进行比较，提出了利用ｐ～ｔ曲线起始段拐点来判别点火的方法，为研究不同可燃药筒的燃烧特性及膛内燃烧过程提供了依据。更多还原

【Abstract】 Based on the analysis of p～t curve’s initial section which is obtained from the closed-bomb,this paper gets the difference of ignition characteristics about three types of combustible cases,compares the ignition delay time with theoretical results, then suggests a method to judge ignition by looking for the deflection point of initial section of P～t curve. This may serve as a basis or reference for study on burning characteristics of different cases and burning process in gun.更多还原