Pressure development in the melting zone of a single‐screw extruder | Zendy

Lindt J. T. | Zendy

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Pressure development in the melting zone of a single‐screw extruder

Author(s) -

Lindt J. T.

Publication year - 1981

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760211708

Subject(s) - materials science , plastics extrusion , mechanism (biology) , channel (broadcasting) , composite material , mechanics , melting temperature , electrical engineering , engineering , philosophy , physics , epistemology

An analysis is given of the pressure generation mechanism in the tapered channel of a single‐screw extruder. It is shown that when increasing the throughput the pressure build‐up capacity of the melting zone tends to decrease. As a result, severe pressure drops may occur in the tapered sections. A relationship between the pressure profile and the melting mechanism (solid bed/melt pool configuration) is described in terms of the cross‐channel melt circulation.

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