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Dynamical modelling and control of plastics extrusion processes

✍ Scribed by A.K. Kochhar; J. Parnaby

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
684 KB
Volume
13
Category
Article
ISSN
0005-1098

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✦ Synopsis

Alternative methods for determining plastics extrusion process models, suitable for high level control, are examined and the importance of time-series techniques for feedforward control is demonstrated. The results of extrusion process dynamic model identification experiments, carried out on a single screw extruder used for processing polyethylene, are described. Some results of exploratory control strategy simulations are included. Control of plastics melt pressure and temperature at the die is suggested as an effective indirect means of controlling die flow rate in most industrial situations.

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