【摘要】 本文在总结前人理论模型的基础上,建立了包括啮合区在内的适合于同向旋转共轭型双螺杆挤出机熔体输送段的理论模型。该模型反映了双螺杆正位移输送和定量加料的特点。本模型不仅适合于共轭型正向螺纹、同时也适合于常用的共轭反螺纹元件。借助于流体有限元法,对熔体输送段压力分布等进行了计算。更多还原

【Abstract】 Based on the theoretical models proposed by predecessors,a theoreticalmodel suitable for melt conveying section of the co-rotating intermeshing twin-screw extruders,including intermeshing zone,is established.This modelexhibils the features of positive displacement conveying and quantitative fee-ding of twin-screw extruders,and it is also suitable for conventional inter-meshing reverse-flighted screw elements.By means of finite element methodfor fluid,pressure distributions in melt conveying section and etc.arecalculated.更多还原