CHINESE JOURNAL OF ENERGETIC MATERIALS
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Applied Study on the Grain Consolidation Propellant as Traveling Charge
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(School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China)

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    Abstract:

    As the grain consolidation propellant charge was applied to traveling charge technique, a new traveling charge scheme was presented.The ignition delay time, mechanical strength, burning rate and stability of combustion performance for traveling charge were studied by the closed bomb and 30 mm ballistic gun test.The results show that the ignition delay time of traveling charge can be controlled by the time delay unit which relying on its high mechanical strength.The experiment results verify preliminarily that the combustion performance of traveling charge is basically stable.The increasing of the time delay unit thickness and ethyl cellulose(EC) content can make the ignition delay time of traveling charge prolong.The increasing of the binder content and pressed density can make the mechanical strength increase and combustion gas release rate decrease for traveling charge.The traveling charge has higher burning rate.When the binder content and the pressed density of traveling charge are 5% and 1.5 g·cm-3, respectively, the maximum burning rate of traveling charge is 46 times as fast as 6/7 propellant.When the main charge dose and the time delay unit thickness are 113 g and 0.4 mm, respectively, the muzzle velocity in interior ballistic test increases by 73.3 m·s-1 with an increase range of about 8%, compared with the standard projectile under the condition that the maximum chamber pressure does not change basically.

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梁泰鑫,肖忠良,吕秉峰,等.颗粒固结发射药作随行装药的应用研究[J].含能材料,2015,23(11):1073-1078.
LIANG Tai-xin, XIAO Zhong-liang, Lü Bing-feng, et al. Applied Study on the Grain Consolidation Propellant as Traveling Charge[J]. Chinese Journal of Energetic Materials,2015,23(11):1073-1078.

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History
  • Received:February 09,2015
  • Revised:April 27,2015
  • Adopted:May 06,2015
  • Online: October 19,2015
  • Published: October 28,2015