The results of the mathematical modeling of polymer’s flow in the entrance channel of the extrusion head are represented. It is shown that vortex structures are formed in the angular regions of the molding channel of extrusion head that have a significant influence on the homogeneity of product obtained by extrusion. The optimal profile of the molding channel of extrusion head was found allowing to avoid the formation of vortex structures.
Экструдат, течение, экструзионная головка, циркуляция, extrudate, flow, extrusion head, circulation
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