3D FEM Study of the Flow Uniformity of Flat Polypropylene Film/Sheet Extrusion Dies

Author:

Igali Dastan1,Perveen Asma1,Wei Dong Ming1,Zhang Di Chuan1,Mentbayeva Almagul1

Affiliation:

1. Nazarbayev University

Abstract

Coat-hanger dies are widely used in the extrusion of polymer sheets and films. However, when designing the flat film/sheet extrusion dies manufacturing companies still facing difficulties in achieving the flow uniformity of the polymer melt. This affects the product quality and tool life. This study examines the existing extrusion die design which is used in in the industry in Kazakhstan for polypropylene sheet production and proposes better geometry of a die. These die geometries will be tested for flow uniformity in terms of velocity and pressure at the outlet.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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