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K. Wilczyński

A mathematical model of the single-screw extrusion process. Part VIII. Extrusion dies

Polimery 1998, No 1, 44

DOI: dx.doi.org/10.14314/polimery.1998.044


Extrusion-die design problems are presented and a solution of the single-screw extrusion model is given to describe the operation of the single-screw extruder-die system. A computer program was developed to simulate the flow of a polymer through various exit cross-section die types: (i) circular, (ii) slit, (iii) annular, (iv) rectangular, (v) semicircular, (vi) ellipsoidal, etc. Pressure and temperature profiles, flow rate, shear rate and residence time were predicted. The pressure profile was simulated as a function of mass flow rate and die temperature.

Keywords: extrusion dies, single-screw extrusion model, polymer flow through extruder die, computer simulation

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