小口径可燃药筒及装药的燃烧性能研究

为改善可燃药筒的燃尽性，以含能纤维为添加组分，经抽滤模压工艺制备了3个配方的小口径可燃药筒，并对所制药筒的燃烧性能与力学性能进行了测试研究，同时分析了药筒装药的能量释放规律。结果表明：含能纤维的引入能够使得可燃药筒的燃烧速度加快，燃烧结束时间缩短，火药力增大，药筒的燃尽性得到改善；和4/7-单与可燃药筒组成的装药相比，可燃药筒与19孔火药匹配较合理，装药能量下降幅度小，能量释放充分。可燃药筒与19孔火药组成装药的射击实验表明，含能纤维的加入能够提高药筒装药的弹道性能。

Research on Combustion Performance of Small-bore Molded Combustible Cartridge Case and Charge

In order to improve the burning-off property, a small-bore combustible cartridge cases with energetic fibers are manufactured by using pulp molding method. The combustion performance and mechani-cal property of small-bore combustible cartridge case and the energy discharge function of combustible small-bore cartridge case charge are analyzed by experimental measurement. The results show that the small-bore combustible cartridge case with energetic fibers is beneficial to increase the burning rate, shorten the constant volume combustion time, and improve the burn-off property and ballistic property. The impetus of the mixed charge declines and burning rate increases with the increase in CCC . Compared to the mixed charge of combustible cartridge case and 4/7 single base propellants, the small-bore combustible cartridge case with 7/19 single base propellants is more reasonable, the charge energy decline lightly and the energy can be released sufficiently.