高氮量改性单基发射药的制备和性能研究
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摘要
通过浸渍-钝感工艺制备了含氮量分别为13. 0%和13. 15%的改性单基发射药样品,采用扫描电镜、密闭爆发器试验和内弹道试验研究了不同含氮量、不同工艺条件对改性单基发射药性能的影响。结果表明,与含氮量13. 0%的改性单基发射药相比,含氮量13. 15%改性单基发射药的NC更难被NG塑化,端面内孔不易封堵;高氮量改性单基药具有更高的火药力,其燃烧渐增性随NG和钝感剂含量的增加而提高;高氮量改性单基发射药在装药量较少的条件下,弹丸初速比低氮量改性单基发射药提高16. 9 m/s,高温(50℃)、常温(20℃)和低温(-40℃)试验中,膛压、初速随温度升高而升高,并且具有低温度系数的特点。
The modified single-base gun propellant(MSBP) samples with nitrogen content of 13. 0 % and 13. 15 %were prepared by an impregnation-desensitizing process. The effects of different content of nitrogen and different process conditions on the properties of MSBP were studied by scanning electron microscope,closed bomb and interior ballistic test. The results show that compared with MSBP with nitrogen content of 13. 0 %,nitrocellulose(NC) of MSBP with nitrogen content of 13. 15 % is more difficult to be plasticized by nitroglycerine(NG),and the inner hole at the end face is not easy to be blocked. MSBP with high content of nitrogen has higher impetus,and its burning progressivity increases by increasing the content of NG and deterrent. Under the conditions of less charge,compared with MSBP with low content of nitrogen,the muzzle velocity of projectile of MSBP with high content of nitrogen increases by16. 9 m/s. In high temperature(50 ℃),normal temperature(20 ℃) and low temperature(-40 ℃) tests,the chamber pressure and muzzle velocity increase by increasing the temperature,and it have the characteristics of low temperature coefficient.
The modified single-base gun propellant(MSBP) samples with nitrogen content of 13. 0 % and 13. 15 %were prepared by an impregnation-desensitizing process. The effects of different content of nitrogen and different process conditions on the properties of MSBP were studied by scanning electron microscope,closed bomb and interior ballistic test. The results show that compared with MSBP with nitrogen content of 13. 0 %,nitrocellulose(NC) of MSBP with nitrogen content of 13. 15 % is more difficult to be plasticized by nitroglycerine(NG),and the inner hole at the end face is not easy to be blocked. MSBP with high content of nitrogen has higher impetus,and its burning progressivity increases by increasing the content of NG and deterrent. Under the conditions of less charge,compared with MSBP with low content of nitrogen,the muzzle velocity of projectile of MSBP with high content of nitrogen increases by16. 9 m/s. In high temperature(50 ℃),normal temperature(20 ℃) and low temperature(-40 ℃) tests,the chamber pressure and muzzle velocity increase by increasing the temperature,and it have the characteristics of low temperature coefficient.
引文
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[9]李达,刘少武,刘波,等.改善单基发射药内弹道性能的途径研究[J].火炮发射与控制学报,2015,36(4):13-18.LI Da,LIU Shao-wu,LIU Bo,et al. The technical route research of improving the interior ballistic performance of the modified single base gun propellant[J]. Journal of Gun Launch&Control,2015,36(4):13-18.
[10]王泽山,史先扬.低温度感度发射装药[M].北京:国防工业出版社,2006.
[2] Vogelsanger B,Schadeli U,Antenen D. EI+-A new,nitro-glycerne free and sensitiveness reducedpropellant for medium caliber and mortar applications[C]∥33th International Annual conference of ICT. Karlsruhe:ICT,2002:18/1-18/15.
[3] Vogelsanger B,schadeli U,Antenen D. ECL-A new propellantfamily with improved safety and performance properties[C]∥38th International Annual Conference of ICT. Karlsruhe:ICT,2007:15/1-15/12.
[4]王琼林,刘少武,于慧芳,等.高性能改性单基发射药的制备与性能[J].火炸药学报,2007,30(6):68-71.WANG Qiong-lin,LIU Shao-wu,YU Hui-fang,et al.Preparationand properties test of high performance modified single base gunpropellant[J]. Chinese Journal of Explosives&Propellants(Huozhayao Xuebao),2007,30(6):68-71.
[5]王琼林,刘少武,谭惠民,等.高能钝感发射药在炮射导弹中的应用[J].火炸药学报,2003,26(4):20-22.WANG Qiong-lin,LIU Shao-wu,TAN Hui-min,et al.High energy deterred propellant using for propulsion of guided missile[J]. Chinese Journal of Explosives&Propellants(Huozhayao Xuebao),2003,26(4):20-22.
[6]王泽山.发射药技术的展望[J].华北工学院学报,2001(增刊):36-40.WANG Ze-shan. Development and prospect of propellant techniques[J]. Chinese Iournal of North University of China,2001(Supple):36-40.
[7]刘少武,刘波,王琼林,等.改性单基发射药温度系数研究[J].含能材料,2012,20(3):345-348.LIU Shao-wu,LIU Bo,WANG Qiong-lin. Temperature coefficient of the modified single-based propellant[J].Chinese Journal of Energetic Materials,2012,20(3):345-348.
[8]王琼林,赵小锋,刘少武,等.一种基于密闭爆发器试验的发射药燃烧渐增性定量评价方法[J].火炸药学报,2009,32(3):71-74.WANG Qiong-lin,ZHAO Xiao-feng,LIU Shao-wu,et al. A quantitative assessment method of gun propellant combustion progresivity based on closed bomb test[J]. Chinese Journal of Explosives&Propellants(Huozhayao Xuebao),2009,32(3):71-74.
[9]李达,刘少武,刘波,等.改善单基发射药内弹道性能的途径研究[J].火炮发射与控制学报,2015,36(4):13-18.LI Da,LIU Shao-wu,LIU Bo,et al. The technical route research of improving the interior ballistic performance of the modified single base gun propellant[J]. Journal of Gun Launch&Control,2015,36(4):13-18.
[10]王泽山,史先扬.低温度感度发射装药[M].北京:国防工业出版社,2006.