一种新型可燃药盒的特性研究

为了改善可燃药盒的力学性能,适应单元药筒装药的特点,设计制备了一种新型可燃药盒(NCCC),对其与抽滤模压可燃药盒(SMCCC)的力学性能和燃烧性能进行测试研究,分析了NCCC与主装药共同装药时的燃尽性。结果表明,与SMCCC相比,NCCC的抗拉强度从32.68 MPa提高到94.18 MPa,抗压强度从7.79 MPa提高到11.78 MPa,表明力学性能得到明显改善;但NCCC存在8 ms左右的点火延迟现象,燃烧过程中压力上升缓慢,燃速较低;NCCC与三胍-15 7/7H以不同比例组成混合装药,当药盒含量在0%~60%时,密闭爆发器试验的燃烧残渣主要来源于三胍-15 7/7H;NCCC装药的弹道试验表明,其能够满足单元药筒装药的弹道性能要求。

Characteristis of a Kind of New Combustible Cartridge Case

In order to improve the mechanical property of combustible cartridge case and adapt the feature of unit cartridge case charge, a kind of new combustible cartridge case(NCCC) was designed and manufactured. The mechanical property and combustion performance of NCCC and suction molding combustible cartridge case(SMCCC) were studied by experiment measurement. The burning-off property of NCCC in mixed charge with main charge was analyzed. Results show that compared with SMCCC, the tensile strength of NCCC increases from 32.68 MPa to 94.18 MPa and the compressive strength increases from 7.79 MPa to 11.78 MPa, revealing that its mechanical properties are significantly improved. But NCCC exists about 8ms ignition delay phenomenon and the pressure rises slowly , the burning rate is low in combustion process. When the percentage of NCCC is from 0% to 60% in mixed charge composed of NCCC and AGu-15 7/7H, the combustion residues in closed bomb are mainly from AGu-15 7/7H. The ballistic test of NCCC charge shows that it can meet the requirements of ballistic performance of unit cartridge case charge.