高压水射流切割发射药模型及实验研究  

Model of High Pressure Water Jet Cutting Propellants and Experimental Study

作　　者：张福炀[1] 廖昕[1] 伦晓梅 王泽山[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094 [2]辽宁庆阳化工厂,辽宁辽阳111001

出　　处：《含能材料》2014年第2期245-250,共6页Chinese Journal of Energetic Materials

摘　　要：针对硝基胍发射药制备切药过程中存在易堵孔、变形等问题,设计了高压水射流切割系统装置,建立了射流切割硝基胍发射药过程的力学模型,研究了射流切割工艺,分析了切割过程的安全性,并通过密闭爆发器实验研究了射流切割发射药的燃烧性能。结果表明,射流切割的深度与切割速度、发射药的强度成反比,射流切割靶距越大,切缝越宽,试验结果与理论分析一致;磨料水射流适用于切割驱溶与未驱溶发射药,而纯水射流只适用于切割未驱溶发射药;硝基胍发射药在切割过程中的温度升高最高温度为60℃,远低于其初始热分解温度178.1℃;射流切割发射药的定容燃烧性能与手工切割的一致。In order to solve the plug hole and distortion during nitroguanidine propellant cutting process,a high-pressure w ater jet cutting system device w as designed,and its mechanical model w as established. T he jet cutting technology conditions w ere studied. T he safety of cutting process w as also evaluated. T he combustion performance of jet cutting propellant samples w as analyzed by the closed bomb test. R esults show that,the jet cutting depths is inversely proportional to cutting velocity and strength of propellants. T he kerf w idth increases w ith increasing target distance,w hich is consistent w ith theoretical analysis. Abrasive w ater jet can be used for cutting the propellants w hether the solvent is removal or not,but w ater jet only used for cutting propellants unremoval of solvent. T he max temperature of the nitroguanidine propellant surface is only 60 ℃ during the jet cutting process,w hich is below its initial thermal decomposition temperature（ 178. 1 ℃）.T here is no significant difference in the combustion performance betw een the propellants cutting by jet and hand.

关 键 词：物理化学 发射药 水射流 燃烧性能 模型 

分 类 号：TQ562[化学工程—炸药化工] TG664[金属学及工艺—金属切削加工及机床]