Experimental verification of computer model for polymer plastication process in injection molding

J. Iwko; R. Steller; R. Wróblewski; J. Kaczmar

doi:10.14314/polimery.2015.644

Published : 2015-10-30

Vol. 60 No. 10 (2015)

Experimental verification of computer model for polymer plastication process in injection molding

J. Iwko R. Steller R. Wróblewski J. Kaczmar

DOI: https://doi.org/10.14314/polimery.2015.644

Abstract

This paper is a continuation of the work on a comprehensive model of the plastication process in injection molding. The aim of this research is the analysis of the results generated by the proposed model by comparing these results with the wide experimental characteristics of real plasticating system of injection molding machine for two polymers — PE-LD and PE-HD, differing in rheological and thermal properties due to the different physical structure of both polymers. It was found that the model correctly determines the dynamics of changes of characteristics of the plastication process by changing the input parameters of the process. The average quantitative differences between the experimental and theoretical characteristics do not exceed 20 %. Computer model still requires minor changes to improve compliance of model results with characteristics of real unit of injection molding machine, primarily for determining more accurate values of melt pressure and torque.

Keywords

injection molding ; injection molding machine ; plasticating system ; modeling wtryskiwanie ; wtryskarka ; układ uplastyczniający ; modelowanie

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Iwko, J., Steller, R., Wróblewski, R., & Kaczmar, J. (2015). Experimental verification of computer model for polymer plastication process in injection molding. Polimery, 60(10), 644-656. https://doi.org/10.14314/polimery.2015.644

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J. Iwko jacek.iwko@pwr.edu.pl

Affiliation
Wroclaw University of Technology, Faculty of Mechanical Engineering, Chair of Foundry, Plastics and Automatics, ul. Lukasiewicza 5, 50-371 Wroclaw, Poland

R. Steller

Affiliation
Wroclaw University of Technology, Faculty of Chemistry, Department of Engineering and Technology of Polymers, ul. Norwida 4/6, 50-373 Wroclaw, Poland

R. Wróblewski

Affiliation
Wroclaw University of Technology, Faculty of Mechanical Engineering, Chair of Foundry, Plastics and Automatics, ul. Lukasiewicza 5, 50-371 Wroclaw, Poland

J. Kaczmar

Affiliation
Wroclaw University of Technology, Faculty of Mechanical Engineering, Chair of Foundry, Plastics and Automatics, ul. Lukasiewicza 5, 50-371 Wroclaw, Poland