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| 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 |
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Abstract 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.
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Received: 24 May 2016
Published: 15 December 2017
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[1] 郑炳旭. 中国高温介质爆破研究现状与展望[J]. 爆破, 2010, 27(03): 13-17.
ZHENG Bing-xu. Current status and prospect of high-temperature blasting research in china[J]. BLASTING, 2010, 27(03): 13-17.
[2] 陈东梁, 颜事龙, 刘义等. 动压作用下乳化炸药微结构变化的实验 [J]. 煤炭学报, 2006, 03: 287-291.
CHEN Dong-liang, YAN Shi-long, LIU Yi, et al. Experimental on the microstructure changing of emulsion explosives under dynamic pressure [J]. Journal of China Coal Society, 2006, 03: 287-291.
[3] 王尹军, 汪旭光. 乳胶基质抗冲击波性能研究 [J]. 兵工学报, 2005, 05: 697-701.
WANG Yin-jun, WANG Xu-guang. A study on the anti-shockwave performance of emulsion matrix[J]. Acta Armamentarii, 2005, 05: 697-701.
[4] 吴红波, 颜事龙, 刘锋. 动压作用下敏化剂对乳化炸药破乳程度的影响 [J]. 含能材料, 2008, 03: 247-250.
WU Hong-bo, YAN Shi-long, LIU Feng. Effect of sensitizing agent on demulsification degree of emulsion explosive under dynamic pressure[J]. Chinese Journal of Energetic Materials, 2008, 03: 247-250.
[5] 颜事龙, 吴红波, 刘锋. 动压作用下敏化剂对乳化炸药析晶量的影响 [J]. 煤炭学报, 2011, 11: 1836-1839.
YAN Shi-long, WU Hong-bo, LIU Feng. Influence of sensitizing agent on crystallization quantity of emulsion explosive under dynamic pressure [J]. Journal of China Coal Society, 2011, 11: 1836-1839.
[6] 颜事龙, 王尹军. 冲击波作用下乳化炸药压力减敏的表征方法 [J]. 爆炸与冲击, 2006, 05: 441-447.
YAN Shi-long, WANG Yin-jun. Characterization of pressure desensitization of emulsion explosive subjected to shock wave [J]. Explosion and Shock Waves, 2006, 05: 441-447.
[7] 傅建秋, 李战军, 蔡建德, 等. 胶状乳化炸药和电雷管的耐高温性能试验研究 [J]. 爆破, 2008, 04: 7-10+27.
FU Jian-qiu, LI Zhan-jun, CAI Jian-de, et al. experimental research on resistance to elevated temperatures of colloidal emulsion explosive and electric detonator [J]. Blasting, 2008, 04: 7-10+27.
[8] 李战军, 郑炳旭. 矿用火工品耐热性现场试验 [J]. 合肥工业大学学报(自然科学版), 2009, 10: 1498-1500.
LI Zhan-jun, ZHENG Bing-xu. On-site heat resistant experiments of permissible explosive materials [J]. Journal of Hefei University of Technology(Natural Science), 2009, 10: 1498-1500.
[9] 汪旭光. 乳化炸药[M]. 北京: 冶金工业出版社, 2008: 541-542.
WANG Xu-guang. Emulsion Explosives [M]. Beijing: Metallurgical Industry Press, 2008: 541-542.
[10] Kirkwood J G, Bethe H A. The pressure wave produced by an underwater explosion [R]. OSRD Rep, 1942, 588.
[11] G.Bjarnholt. Suggestions on standards for measurement and data evaluation in the underwater explosion test [J]. Propellants, Explosives, Pyrotechnics, 1980, 5(2): 67-74.
[12] 林谋金, 马宏昊, 沈兆武, 等. RDX基铝薄膜炸药与铝粉炸药水下爆炸性能比较[J]. 化工学报, 2014, 02:752-758.
LIN Mou-jin, MA Hong-hao, SHEN Zhao-wu, et al. Difference between RDX based aluminum film explosive and aluminum particle explosive on underwater detonation [J]. CIESC Journal, 2014, 02:752-758.
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