七孔发射药模具结构参数优化分析  

Optimum on Die Structure Parameters for 7-Hole Propellant

作　　者：吕胜涛[1,2] 季丹丹 廖昕[1] 王泽山[1] LYU Shengtao;JI Dandan;LIAO Xin;WANG Zeshan(Charging Technology Institute,Nanjing University of Science and Technology,Nanjing 210094,China;China Academy of Physics,Engineering,Institute of Chemical Materials,Mianyang 621000,China)

机构地区：[1]南京理工大学火药装药技术研究所,南京210094 [2]中国工程物理研究院化工材料研究所,四川绵阳621000

出　　处：《兵器装备工程学报》2018年第8期152-156,共5页Journal of Ordnance Equipment Engineering

摘　　要：由于模针的弹性变形,采用溶剂法挤出七孔发射药易发生偏孔,影响发射药的燃烧性能。本文基于正交优化方法,分析了模具结构各参数对模针变形量影响程度的主次关系。结果显示:成型段长度对模针变形的影响最大,收缩角次之,压缩段高度的影响很小,且模针变形量随上述三个参数的增大均呈递增趋势;现有模具的发射药制备试验结果与仿真值吻合良好,误差为8.42%。本文的计算方法及研究结果可为七孔发射药制备模具的设计及多孔火药的精确制备提供参考。Slant hole occurred during 7-hole propellant ＇s extrusion process because of fins ＇ elastic deflection. Based on the orthogonal optimum design,this paper analyzes the effect of die structure parameters on fins＇ deflection. The results show that the length of forming section affects fins＇ deflection the most,convergence angle the secondly and the height of compression section the least. A proportional relation exists between the fins deflection and three parameters above. The simulation results fit the experimental results very well whose error is 8. 42%. The simulation method and calculation results could provide references for die＇s structure design.

关 键 词：发射药 成型 变形 优化设计 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]