火炸药学报2017，Vol.40Issue(3)：98-101,4.DOI:10.14077/j.issn.1007-7812.2017.03.019
大颗粒球形发射药的制备及性能测试
Preparation and Properties Test of Spherical Gun Propellant with Large Diameter
摘要
Abstract
To solve the problem of large solvent wastage and non-uniform particle size in the preparation of spherical propellant grain, the spherical gun propellant with large diameter was prepared through the shear-rounder method using double-base absorbent gun powder as raw material.The effect of mass ratio of solvent to cotton, the space between two pill-rolling knifes, and the diameter of the sticks on the quality of spherical gun propellant was studied.The constant-volume combustion performance of formed and dried samples was measured by the closed bomb test.The results show that when the mass ratio of solvent to cotton is 0.4, the space between two pill-rolling knifes is 0.4mm and the diameter of the sticks is 3.8mm, the particle size of spherical particle obtained is uniform, and the elongation, true density, and bulk density of the spherical gun propellant after drying are 1.033, 1.680g/cm3 and 0.945g/cm3, respectively, similar to the density of the spherical gun propellant prepared by the internal dissolution method.The curves obtained from the closed bomb test show that the combustion process of spherical particle prepared is stable, revealing a characteristic of regressive burning.关键词
球形发射药/球形颗粒/剪切搓圆/密闭爆发器试验/定容燃烧性能Key words
spherical gun propellant/spherical particle/shear-rounder/closed bomb test/constant volume combustion performance分类
军事科技引用本文复制引用
王召青,刘勋,董朝阳,张华君,史雨,裴重华..大颗粒球形发射药的制备及性能测试[J].火炸药学报,2017,40(3):98-101,4.基金项目
新型结构含能材料四川省高校创新团队(15TD0014) （15TD0014）
