摘要
为研究螺旋挤压工艺对高固体含量推进剂性能产生的影响,根据计算流体动力学理论,借助于POLYFLOW软件数值模拟了单螺杆均化段挤压过程。分析了流场的分布规律,并研究了不同工艺条件对螺压挤出过程中流场的影响。结果表明,在螺杆相同的位置,随着转速的不断增加,药料温度和压力均增加;随着螺杆温度或套筒温度的升高,物料温度均升高,压力减小。该研究为进一步优化单螺杆生产工艺参数提供了理论依据。
The parameters are simulatied for the production process of RDX-CMDB propellant.The results show that with the increasing of the screw speed,the pressur and temperature will rise,and the maximum values of pressure will appear at the arris in the radial direction at the same place of the screw extruder.When the screw speed,screw temperature or barrel temperature increases,the fluidity will become better with the apparent viscosity of the material decreased,and the temperature of the material will increase,which may result in superheat decomposition inside the fluid.
作者
吴小娟
饶国宁
彭旭
Wu Xiaojuan;Rao Guoning;Peng Xu(Institute of Medicine&Chemical Engineering,Zhenjiang College,Zhenjiang 212028,China;Department of Safety Engineering,School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《山东化工》
CAS
2021年第19期200-202,共3页
Shandong Chemical Industry
基金
国家自然科学基金(61901195)
江苏省现代教育技术研究2021年度立项课题(2021-R-89078)
镇江高专2021年教改课题(2021YB0022)。
