含双芳-3发射药的灌注炸药爆轰性能

采用灌注成型工艺,将含敏化剂的含能灌注液填充于废弃的双芳-3发射药颗粒的空隙中,制备出灌注炸药。通过见证板试验、高速摄影、空中爆炸及水下爆炸试验分别研究了其爆轰性能、冲击波超压及能量输出特性。结果表明,采用灌注工艺,可制备性能优良的灌注炸药;随着敏化剂含量的增加,炸药的爆轰感度显著提高,但其爆速、冲击波超压及水下爆炸能量输出变化较小;该炸药的密度可达1.52 g·cm-3,爆速6600 m·s-1(Φ60 mm),比例距离为1.65～4.50 m·kg-1/3时TNT当量系数略大于1,比冲击波能及总能量分别为1.57,4.16 MJ·kg-1,高于常用的工业炸药,略低于TNT。

Detonation Performance of Perfusion Explosive Containing SF-3 Double-based Propellants Energetic Materials

A type of new perfusion explosive was prepared through the perfusion molding process, in which expired SF-3 double-based propellants were used as ingredients and the charge of propellant particles were filled with energetic fluid. The detonation performance of the perfusion explosive was studied through the witness plate test. Explosion reaction was recorded by high-speed camera. The shock wave overpressure and release energy were measured by the air explosion and underwater blast respectively. The results show that through the perfusion molding process, expired SF-3 double-based propellants can be reused to manufacture industrial explosive with excellant performance. With the sensitizer content increasing, the detonation sensitivity increases, but the detonation velocity, overpressure and the release energy almost keep the same. The density of this perfusion explosive can be 1.52 g·cm^-3, and the detonation velocity is 6600 m·s^-1 when the diameter is 60 mm. TNT equivalence of the explosive is over 1 when the proportion distance range is 1.65~4.5 m·kg^-1/3. The shock wave energy is 1.57 MJ·kg^-1 and total energy is 4.16 MJ·kg^-1, both more than the common industrial explosives, but slightly lower than TNT.