摘要
为了解由化学发泡工艺制备的单基微气孔球扁药的常压燃烧特征,用靶线法测量并分析装填成药柱的微气孔球扁药试样的表观质量燃速随堆积密度、平均粒径、装填条件及发射药初温的变化特征。结果表明,随着试样堆积密度的降低,单基微气孔球扁药的质量燃速逐渐增加,随试样装药直径和球扁药粒径增大,质量燃速显著提高;质量燃速对试样初温敏感,当初温由288 K提高到332 K时,质量燃速提高了4.5倍以上;装填药粒用的壳体材料和药粒装填高度对传火速度的影响不显著。
In order to study the combustion property of oblate propellant with micropores prepared by chemical foamed process, the apparent mass burning rate of the propellant is measured by strand burner method in air at normal pressure. Experimental results show that the bulk density, grain size, test temperature and the loading condition have obvious effects on the mass burning rate of the oblate propellant with micropores. The mass burning rate of single base micropores propellant increases with decreases of the bulk density. It also increases with the rise of load diameter and the particle size. Comparing with normal propellant, test temperature has more effects on the mass burning rate of single base oblate propellant with micropores. When test temperature increases from 288 K to 332 K, the mass burning rate of single base oblate propellant with micropores increases over 4.5 times. The materials of tube for loading particles and the load height have less effect on the apparent mass burning rate.
出处
《火炸药学报》
EI
CAS
CSCD
2005年第4期68-71,共4页
Chinese Journal of Explosives & Propellants
关键词
燃烧化学
微气孔球扁药
燃烧性能
质量燃速
combustion chemistry
micropore oblate propellant
combustion property
mass burning rate
