| 单螺杆挤出机并联式稳压装置的模拟计算 |
| |
| 引用本文： | 李晓林,吴大鸣,伊万·M. 单螺杆挤出机并联式稳压装置的模拟计算[J]. 机械工程学报, 2003, 39(7): 111-115 |
| |
| 作者姓名： | 李晓林 吴大鸣 伊万·M |
| |
| 作者单位： | 1. 北京化工大学塑料机械及塑料工程研究所,北京,100029
2. 乌克兰国立化工大学 |
| |
| 基金项目： | 北京市自然科学基金(3022008) |
| |
| 摘 要： | 研制了单螺杆并联式稳压装置,建立了高聚物为等温幂律流体稳压装置的数学模型,用MathCAD软件对该模型进行了数值模拟。给定主螺杆末端的压力波动,计算了稳压螺杆对压力波动的调节能力,分析了影响稳压螺杆稳压效果的各种因素。结果表明:若固定稳压螺杆转速,通过自动调节稳压螺杆中高聚物熔体的存留长度,可补偿主螺杆压力和产率波动的97.6％;若调节稳压螺杆的转速,则可完全补偿主螺杆压力和产率的波动。
|
| 关 键 词： | 高聚物 稳定流动 挤出 模型 |
| 修稿时间： | 2002-12-05 |
MATHEMATICAL SIMULATION OF PARALLEL PRESSURE STABILIZATION APPARATUS FOR SINGLE SCREW EXTRUDER |
| |
| Li Xiaolin Wu Darning. MATHEMATICAL SIMULATION OF PARALLEL PRESSURE STABILIZATION APPARATUS FOR SINGLE SCREW EXTRUDER[J]. Chinese Journal of Mechanical Engineering, 2003, 39(7): 111-115 |
| |
| Authors: | Li Xiaolin Wu Darning |
| |
| Affiliation: | Li Xiaolin Wu Darning (Beijing University of Chemical Technology)IvanM (Ukraine State University of Chemical Technology) |
| |
| Abstract: | A mathematical model of parallel pressure stabilization apparatus for single screw extruder is established based on the assumptions of power law fluid and isothermal process. Numerical solutions for the model are carried out with the help of MathCAD. The influences of geometrical and technological parameters on the stability of extrusion pressure and output with specified pressure fluctuant pattern at the end of main screw are studied. The simulation results indicate that when the screw speed of parallel pressure stabilization apparatus is fixed, the pressure and output fluctuation of extrusion can be compensated up to 97.6% with automatic regulation of filling length of the polymer melt in the barrel. If the screw speed of parallel pressure stabilization apparatus is varied corresponding to the pressure fluctuation, the pressure and output fluctuation of extrusion can be fully compensated. |
| |
| Keywords: | Polymer Stabilization Extrusion Mathematical model |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
