Investigation regarding the correlation of the relative influences during the extrusion process of cast films on the resulting melt quality

One key competence in plastics processing is extrusion on single-screw machines. In terms of volume, the extrusion process is the most relevant processing method for plastic granulates. One of the main goals of the plastics industry is to achieve consistent melt and product quality with increasing mass throughput in order to meet the constantly growing economic requirements. A specific machine design is particularly important for the efficiency of the extruder. The simulation tools currently available are not yet able to predict the expected product quality with sufficient accuracy. Suitable criteria are selected to adequately describe the melt quality. Extensive investigations form the data basis for the evaluation of the melt quality, on the basis of which the cause-effect relationships are revealed.

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