CAJ | 학술논문

为研究压实装药在变容情况下的动态燃烧稳定性、安全性能及不同表面处理方法对动态燃烧渐增性能的影响，将太根小粒药表面进行解体预处理后，采用乙醇/丙酮高温热蒸汽软化法将其压实成堆积密度为1.35 g·cm-3的药柱，再进行表面处理，得到待测的压实药柱样品。利用设计自制的变容燃烧模拟器进行动态燃烧中止试验，并记录燃烧过程的压力时间曲线。与用纯的硝化棉胶包覆的压实药相比，添加点火敏化剂包覆样品易于点火，而添加钝感剂的包覆样品点火滞后，动态活性降低，燃烧渐增性较好。所制得的粘结压实药解体完全、燃烧稳定，药粒无破碎，发射过程是安全的。结果表明：合适的表面处理方法能有效抑制粘结压实药柱的起始燃气生成速率，实现较好的渐增性燃烧。
위연구압실장약재변용정황하적동태연소은정성、안전성능급불동표면처리방법대동태연소점증성능적영향，장태근소립약표면진행해체예처리후，채용을순/병동고온열증기연화법장기압실성퇴적밀도위1.35 g·cm-3적약주，재진행표면처리，득도대측적압실약주양품。이용설계자제적변용연소모의기진행동태연소중지시험，병기록연소과정적압력시간곡선。여용순적초화면효포복적압실약상비，첨가점화민화제포복양품역우점화，이첨가둔감제적포복양품점화체후，동태활성강저，연소점증성교호。소제득적점결압실약해체완전、연소은정，약립무파쇄，발사과정시안전적。결과표명：합괄적표면처리방법능유효억제점결압실약주적기시연기생성속솔，실현교호적점증성연소。
To study the combustion stability and safety of consolidation propellants under the conditions of variable combustion-chamber volume and to discuss the effects of different surface-treatment methods on progressive burning,high temperature solvent vapor of alcohol/acetone were used to consolidate double-base oblate sphere propellant standard grains plasticized with tri-ethyeneglycol dinitrate (TEGN ) to propellants charge with high compaction density of 1 .3 5 g·cm-3 after pre-deconsolidation treatment.The obtained consolidated charges were coated by pure nitrocellulose gel,mixed nitrocellulose gel containing ignition sensitizer and mixed nitro-cellulose gel containing the deterrents,respectively.Interrupted burning experiments of consolidated propellant charges were carried out in a semi-closed test rig with variable volume, and the pressure-time history of gas generation during the interrupted burning was recorded by the pressure transducer.The effect of different surface treatment method on the burning progressivity of prepared samples was discussed based on the deduced dynamic vivacity data. Compared with coated consolidated with pure nitrocellulose gel,it is easy to be ignited for the samples coated by the mixed nitrocellulose gel containing ignition sensitizer.In contrast,the prepared samples coated by deterred nitrocellulose gel indicates an ignition delay;the peak of dynamic vivacity decreases a little,and the progressive burning is good.Results show that appropriate surface treatment method can inhibit the initial dynamic vivacity of consolidated charges and obtain the burning progressivity.