Improving the Feeding Zone of Single Screw Extruders at High Rotation Speed by Using the Discrete Element Method


R. Weddige, V. Schoeppner


Society of Plastics Engineers


ANTEC 2010 Plastics: Annual Technical Conference Proceedings



Increasing screw speed is a possible approach to improve the performance of a single screw extruder but itchallenges the processing technology and the material processed. Apart from difficult melting, the feeding of the screw with granules is complicated. This results in partially filled screw channels. In the following, the resin transfer depending on the screw speed is investigated and analyzed by means of the simulation program EDEM, which is based on the Discrete Element Method.


resin transfer, screw extruder, screw speed

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