Effects of sensitizers on explosion power of emulsion explosives under water-bath protection
LI Zhan-jun1, LIN Mou-jin1, MA Hong-hao2, WANG Fei2, LIU Yi1
1. Hongda blasting Co., Ltd., Guangzhou 510623, China;
2. CAS Key Lab of Mechanical Behavior and Design of Materials (LMBD), University of Science and Technology of China, Hefei 230026, China
In order to study effects of different sensitizers on explosion power of emulsion explosives after water-bath heating, the pressure-time curves of emulsion explosives with different sensitizers after different time durations of water-bath heating were measured through underwater explosion tests. The corresponding explosion performance parameters were calculated using the curves. The results showed that detonation velocity, peak pressure, impulse, specific shock energy, specific bubble energy and total energy of emulsion explosives with different sensitizers decrease with increase in water-bath heating time; the total energy of emulsion explosives sensitized by NaNO2 decreases by more than 10% after one hour of water-bath heating, while that of emulsion explosives sensitized by physical sensitizer decreases by less than 5% after one hour of water-bath heating; emulsion explosives sensitized by NaNO2 is easy to lose cap sensitivity after water-bath heating, but there is not such a phenomenon for emulsion explosives sensitized by physical sensitizer.
李战军1，林谋金1，马宏昊2，王飞2，刘翼1. 水浴防护下敏化剂对乳化炸药爆炸威力的影响[J]. 振动与冲击, 2017, 36(24): 165-169.
LI Zhan-jun1, LIN Mou-jin1, MA Hong-hao2, WANG Fei2, LIU Yi1. Effects of sensitizers on explosion power of emulsion explosives under water-bath protection. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(24): 165-169.
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