Theoretical and practical view of solid conveyance and melting of plastics with a single screw extruder of particularly short design
Against the trend to use longer plasticizing units the Institut für Kunststofftechnik examines a single screw extruder of very short design (L/D ratio <5). Apart from the very short length this extruder differs from conventional aggregates by the missing of a barrel heating. The energy necessary for plastification is applied exclusively over the drive and transferred by frictional heating into the material. These characteristics and the fact that almost all materials can be processed with this machine lets this intensive plasticizer appear very interesting. The conventional models used to describe solid conveyance and plastification are however not applicable and must be developed again.
The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)
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