Study on the Resin Behavior in Intermeshing Twin Screw Extruder. 2-Dimensional Flow Model and Analysis in Melting and Pumping Step.:2-Dimensional Flow Model and Analysis in Melting and Pumping Step
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The present paper is concerned with the study of the resin behavior during the melting and pumping step of intermeshing counter-rotating twin screw extruder. In order to propose a fundamental understanding and a practical methodology to make an optimal design of twin screw, a 2-dimensional predictive model is newly developed and a simulation methodology for intermeshing twin screw extruders is presented. The model is based on a modification of the original by Janssen into an analytical formulation by using hydrodynamic lubrication theory, to allow for the application to rigid polyvinylchloride (PVC) resin, which can be treated as a power law fluid. From the proposed model the inherent pressure profile along a screw channel is predicted and confirmed experimentally by pressure measurement. Comparisons of calculated results with experimental data show that the resin flow behavior can be analyzed with reasonable applicability and engineering significance, such that wear-resistant screws can be successfully designed by using the developed simulation methodology.
- 一般社団法人 プラスチック成形加工学会の論文
一般社団法人 プラスチック成形加工学会 | 論文
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