WORM FOR MONO- WORM EXTRUDER

1. Screw for a single screw extruder, with a conically shaped feed zone (I) which undergoes transition into a decompression zone (II) which is followed by a compression zone (III), characterised in that the compression ratio in the feed zone (I) of the screw (2) is greater than four, with a pitch an...

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Bibliographische Detailangaben
Hauptverfasser:	NATOV,MILCHO A, VASILEVA,STEFANKA V
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	1. Screw for a single screw extruder, with a conically shaped feed zone (I) which undergoes transition into a decompression zone (II) which is followed by a compression zone (III), characterised in that the compression ratio in the feed zone (I) of the screw (2) is greater than four, with a pitch angle (phi 1 ) to the screw line of 15 degrees to 23 degrees, that the decompression in the decompression zone (II) amounts to 1.5 to 2.0 and that the compression ratio in the compression zone (III) is less than 4.5 with a pitch angle (phi 2 ) to the screw line of the screw (2) of 25 degrees to 32 degrees.