摘要
为预估轻武器用钝感发射药在贮存过程中,因钝感剂迁移导致弹道性能变化而引起功能失效的问题,采用Fick第二定律和扩散系数与扩散活化能的关系,以发射药钝感层结构相同、其内弹道性能相同为前提,建立了轻武器用钝感发射药功能失效阈值预估方法。应用该方法,采用3种配方钝感发射药分别在75℃和85℃下长贮,计算出各发射药钝感剂药的扩散活化能,并以75℃为基准预测了3种配方钝感发射药65℃长贮下的膛压功能失效阈值,同时在65℃下对发射药进行长贮,通过内弹道试验实测出发射药在65℃长贮下膛压功能失效阈值。结果表明,应用该方法预估发射药膛压功能失效阈值与实测值偏差分别为10.3%、2.9%、7.9%。同时以65、75、85℃下平均扩散活化能,计算出不同温度下发射药功能失效阈值,并对3种配方钝感发射药要满足常规弹药17年的贮存寿命要求的最高贮存温度提出了要求。
To predict the function failure reflected in the change of interior ballistic performance caused by deterrent migration during act:storage of deterred gun propellant for firearms,the Fick′s second law and the relationship between diffusion coefficient and diffusion activation energy were used to establish a prediction methodology of function failure threshold value of deterred gun propellant for firearms,with the premises of the same deterred layer structure and the same interior ballistic performance.Three kinds of deterred gun propellants were stored at 75℃and 85℃respectively,and the diffusion activation energy of each gun propellant was calculated by this method.The chamber pressure function failure threshold value of three kinds of deterred gun propellants at 65℃was predicted based on the value at 75℃,and it was compared to the tested value at 65℃by interior ballistic experiment.The results show that the deviations between the predicted and measured values are 10.3%,2.9%and 7.9%respectively.Based on the average diffusion activation energy at 65,75 and 85℃,the functional failure thresholds of the gun propellants at different temperatures are calculated.And the requirements for the maximum storage temperature of the three deterred gun propellants with different formulations are put forward to meet the 17 years′storage life requirements of conventional ammunition.
作者
赵其林
周宏伟
陈春林
贺云
张文博
郭礼波
陈刚
杨琴
ZHAO Qi-lin;ZHOU Hong-wei;CHEN Chun-lin;HE Yun;ZHANG Wen-bo;GUO Li-bo;CHEN Gang;YANG Qin(Luzhou North Chemical Industries Co., Ltd.,Luzhou Sichuan 646003,China)
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2021年第1期101-105,共5页
Chinese Journal of Explosives & Propellants
基金
陆装预研项目。
关键词
物理化学
钝感发射药
功能失效阈值
钝感剂
贮存寿命
physical chemistry
deterred gun propellant
function failure threshold value
deterrent
storage life
