摘要灌注炸药的生产制造灌注中，填充液充满空隙是关键。填充液要求刚开始填入药粒间的空隙黏度比较低，便于操作；过一段时间后，填充液体系粘度逐渐增大，形成凝胶。过去的研究侧重配方和工艺研究, 试验过程是一个昂贵和耗时的过程，压力、温度、时间、流体性质的不同，所生产得到的最终产品也不同。采用商业软件polyflow进行预测建模和数值模拟能缩短研发周期，效率更高。火药粒的长度越长，药粒中通流道压力梯度越小；流量一样的情况下，松弛时间、黏度增大，压力梯度也随之增加；填充液的流量越大，球形火炸药颗粒边缘的压力值下降的幅度就越大；火药粒离填充液进口位置越近，火药粒中流道压力值越大。火药粒离填充液进口位置对条状与球形火药颗粒的影响不一样。64130

毕业论文关键词 废弃发射药 灌注成型 填充液 黏度 凝胶 polyflow 数值模拟 压力梯度松弛时间

毕业设计（论文）外文摘要

Title   Study on filler liquid flow-forming in the particle use Polyflow                                             

Abstract Perfusion perfusion in manufacturing explosives, fill fluid filled voids is the key. The beginning of the filling liquid filled prills required gap between the relatively low viscosity, easy to operate; over a period of time, the filling liquid viscosity increases, the formation of a gel. Past research focused on formulation and process research, testing process is a costly and time-consuming process, pressure, temperature, time, the fluid nature of the different, the production of the final product obtained is also different. Using commercial software polyflow for predictive modeling and numerical simulation can shorten development cycles and efficient. The longer the grain of gunpowder, medicines grains flow channel pressure gradient is smaller. Flow the same circumstances, the relaxation time, the viscosity increases, the pressure gradient increases. The greater the flow of liquid filling, spherical particles of explosives edge pressure value, the greater the decrease. Gunpowder grain imports from the filling liquid positions closer, gunpowder grain flow channel pressure value is. Gunpowder grain imports from the location of the strip filled with liquid spherical particles of gunpowder is not the same.

Keywords  Waste propellant  Perfusion  Filler liquid  Viscosity  Gel Polyflow Numerical Simulation  Pressure gradient  Relaxation time

目录

1 绪论 1

1.1 Polyflow 1

1.1.1 POLYFLOW在研究高分子性能与加工应用的进展 1

1.2 利用废旧火炸药制造民用炸药 2

1.3 利用废旧火炸药制造灌注式凝胶炸药 4

1.3.1 制造原理及工艺研究 4

1.3.2 填充液的研究 5

2 实验部分 6

2.1 Polyflow软件 6

2.1.1 POLYFLOW软件结构 6

2.1.2 分析过程 7

2.1.3 分析计划 9

2.1.4 基本分析步骤 10

2.2 本课题研究的主要内容 11

2.3本课题研究的目的及意义 11

3 实验原理 11

4 计算模拟