【摘要】 采用常压燃烧实验、热分析实验以及桥塞工具地面实验等方法,研究了新型NLG缓燃桥塞火药的常压燃烧性能、热分解特性及其在桥塞工具中的燃烧性能。结果表明:缓燃型NLG桥塞火药具有燃速低、燃烧残渣粘附性低的特性;通过调节桥塞火药配方中粘合剂含量、氧化剂粒度和降温剂含量等可改善其燃烧性能;缓燃型NLG桥塞火药在桥塞工具中燃烧稳定,能可靠完成坐封工作,具有很好的应用前景。更多还原

【Abstract】 The burning behavior,thermal decomposition and combustion characteristics within the bridge-plug system of a new bridge-plug propellant were investigated by means of atmospheric combustion experiments,DTA and bridge-plug system experiments,respectively.The results showed that the new bridge-plug propellant exhibited the characteristic of smaller burning rate and lower adhesion of its residue.The combustion properties of the propellant can be improved by adjusting the content of binder,the particle size of oxidizer,or the content of cooling agent.The combustion of the propellant in bridge plug system is stable and enables a complete and successful operation of bridge-plug system,which ensures the new bridge-plug propellant a promising prospect of wide applications in the future.更多还原