食品与机械2017，Vol.33Issue(1)：72-75,4.DOI:10.13652/j.issn.1003-5788.2017.01.017
聚乳酸在啮合同向双螺杆挤出机机头过渡体的流场研究
Study on flow field of polylactic acid in the nose transition body of co-rotating twin-screw extruder
时俊峰 1黄志刚 1蒋卫鑫 1李梦林 1张宏建1
作者信息
- 1. 北京工商大学材料与机械工程学院,北京 100048
- 折叠
摘要
Abstract
Three-dimensional isothermal flow field of polylactic acid(PLA) of the nose transitional body of length to diameter ratio is 44∶1 experiment with a small meshing direction twin-screw extruder head by using the PALYFLOW software.The fields of velocity, pressure, shear rate and viscosity with different process parameters are analyzed and compared.Results showed that the flow field effect become better with the increase of the screw speed and the flow rate at the appropriate temperature,but compared with the increase of the screw speed, the increase of the melt flow was more beneficial to improve mixing and plasticizing effect of the extruder head's transition flow field, and the quality of PLA products.关键词
聚乳酸/双螺杆挤出机/机头过渡体/流场模拟Key words
polylactide/twin screw extruder/the nose transition body/flow field simulation引用本文复制引用
时俊峰,黄志刚,蒋卫鑫,李梦林,张宏建..聚乳酸在啮合同向双螺杆挤出机机头过渡体的流场研究[J].食品与机械,2017,33(1):72-75,4.
