用连续爆速法测定工业炸药爆速

采用电测法和连续速度探针法分别测量了粉状乳化炸药和乳化炸药的平均爆速和连续爆速.结果表明,粉状乳化炸药在装药密度为850 kg·m-3和820 kg·m-3时,平均爆速分别为4526 m·s-1和4020 m·s-1; 稳定爆轰时连续爆速范围分别为4300～4600 m·s-1和4000～4300 m·s-1.乳化炸药在装药密度为900 kg·m-3和840 kg·m-3时,平均爆速分别为4384 m·s-1和2345 m·s-1; 连续爆速范围分别为3370～4592 m·s-1和2871～3420 m·s-1.显然,平均爆速测试结果与连续爆速的测试结果吻合很好,且连续速度探针法能满足准确测量工业炸药在装药结构中爆速连续变化的要求.

Measurement of Detonation Velocity of Industrial Explosive Using Continuous Detonation Velocity Method

The average detonation velocity and continuous detonation velocity of powdery emulsion explosive and emulsion explosive were measured respectively by electrometric method and continuous velocity probe. Results show that, for powdery emulsion explosive with the charge density of 850 kg·m^-3 and 820 kg·m^-3, the average detonation velocities are 4526 m·s^-1 and 4020 m·s^-1; the corresponding continuous detonation velocity ranges are 4300-4600 m·s^-1 and 4000-4300 m·s^-1 during the stable detonation phase. For emulsion explosive with the charge density of 900 kg·m^-3 and 840 kg·m^-3, the average detonation velocities are 4384 m·s^-1 and 2345 m·s^-1; the corresponding continuous velocity ranges are 3370-4592 m·s^-1 and 2871-3420 m·s^-1. The detonation velocity measured by the continuous velocity probe method is in accord with the detonation velocity measured by the traditional electrometric method, and the continuous velocity probe method can even give the true course of detonation development for industrial explosive.