Doppelkopf zur Extrusion von zwei Hohlsträngen

1375980 Extrusion dies FARBWERKE HOECHST AG 31 Dec 1971 [2 Jan 1971] 61006/71 Heading B5A Two thermoplastic tubes are extruded in opposite directions from a die head having opposing die orifices fed from a single extruder (not shown) through a conduit 51. The conduit 51 leads into annular chambers 4...

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Bibliographische Detailangaben
1. Verfasser:	KRAUSE,MICHAEL,DR
Format:	Patent
Sprache:	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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Beschreibung
Zusammenfassung:	1375980 Extrusion dies FARBWERKE HOECHST AG 31 Dec 1971 [2 Jan 1971] 61006/71 Heading B5A Two thermoplastic tubes are extruded in opposite directions from a die head having opposing die orifices fed from a single extruder (not shown) through a conduit 51. The conduit 51 leads into annular chambers 4 connected by holes 33 to die passages 32. The annular die orifices are formed between bushes 12 and mandrels 2 which are attached to a common support member 3 fixed within the easing 1. Air is fed through the passages 6 separately to the interior of each tubular extrudate to inflate or merely support them. Separate temperature is provided for the central portion and the two regions adjacent the extrusion orifices.