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The effect of solids conveyance on the stability of the single screw extrusion process

✍ Scribed by D. M. Bigg

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
462 KB
Volume
7
Category
Article
ISSN
0730-6679

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✦ Synopsis

The flow of a polymer powder in the feed section of a single screw extruder has been experimenfally investigated for its relationship to extruder stability. It is shown that the feeding and compaction process is inherently random, leading to random fluctuations in the position along the screw where melting begins. Such fluctuations are not considered serious under most circumstances, however. More severe fluctua-

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## Abstract Single screw extruders are known as good melt pumps with the high, stable pressure needed for part extrusion. However they have a particular disadvantage in achieving good mixing. In a vibration‐induced polymer extruder (VIPE), a vibration force field (VFF) is introduced into the whole