Backflow barrier at the screw head of screw injection moulding machines

A back-flow prevention apparatus includes a screw body; a screw head (14) attached to the screw body; a first resin passage (37) formed on a first ring; a second resin passage (47) formed on a second ring (32) located adjacent to and rotatable relative to the first ring (31); a drive unit. for rotat...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	KONNO, MASAAKI
Format:	Patent
Sprache:	eng ; fre ; ger
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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