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Bulk density, as well as the physical shape of the polymer, influences the solid material flow in hoppers and in the feed section of screws. Low bulk density results in low mass flow rate, possibly causing solids conveying rates too low to feed enough solids to the plasticating section. In this situation, specially designed force-feed... [Pg.655]

See other pages where Feed section of screw is mentioned: [Pg.518] [Pg.538]