摘要
为使用废弃发射药制备浆状炸药,研究了单基药和双芳-3的弯曲和压缩特性。结果表明,在相同条件下进行粉碎,其粒度有较大的差异,通过分析找出双芳-3颗粒偏粗的原因是在50℃粉碎时处于玻璃化温度以上,出现塑性变形,颗粒偏粗;单基药处于玻璃化温度以下,同时具备较高的弹性模量,粉碎时颗粒偏细小;使用单基药制备的浆状炸药性能良好,而用双芳-3制备的浆状炸药出现爆炸不完全或拒爆现象,其原因与双芳-3的成分有关,另外受粒度变化的影响。将双芳-3粉碎工艺进行适当调整,增加了二次粉碎流程,385μm以上的颗粒减少了60%左右,154μm以下的颗粒增加了50%,改变工艺后,用双芳-3制备的炸药性能获得了明显改善。
In order to prepare slurry explosives by waste propellants, the mechanical characteristics of single base propellant and double base aromatic-3 propellant were studied through the stress and strain after being curved and compressed. The test results showed that waste single base propellant has higher modulus and lower strain quantity. There is obvious difference between the two materials after being smashed, the grains of the latter are grosslier than the former, the cause was that double base aromatic-3 propellant is beyond the glass temperature on the condition of smash progress （50 ℃）; the material is easy to plastic distortion, the grains are coarse; however, single base propellant is lower than glass temperature on the condition of smash progress （50 ℃）, having higher modulus, the grains are fine. The slurry explosive from the grains of single base propellant has good characteristics, but the slurry explosive from double base aromatic-3 propellant showed diversity, which may cause the incomplete or the putting out explode. This diversity is relative with the composition of propellant and the change of size affecting the characteristics Of this explosive. After adjustment and add of the smash process, the grains of up 385μm meshes decreased about 60 percent, and the numbers of down 154μm in meshes increased 50 percent, showing that the performance of the slurry explosive is improved through two smash processes from double base aromatic-3 propellant.
出处
《火炸药学报》
EI
CAS
CSCD
2006年第5期46-48,56,共4页
Chinese Journal of Explosives & Propellants
关键词
物理化学
废弃发射药
浆状炸药
粉碎
力学性能
单基药
双芳-3
physical chemistry
waste propellant
slurry explosive
smash
mechanical property
single base propellant
double base aromatic-3 propellant
