METHOD FOR PRODUCING AN ANNULARLY CLOSED ENDLESS TUBE AND ENDLESS TUBE

The invention relates to a method for producing an annularly closed endless tube (1) from an open tube (2) made from plastic, wherein, in a step i), opposite, end-sided end regions (3, 4) of the open tube (2) are pulled over at least one connecting element (5) and the open tube (2) is closed by mean...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Kertesz, Akos, Lembacher, Christian
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE 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:	The invention relates to a method for producing an annularly closed endless tube (1) from an open tube (2) made from plastic, wherein, in a step i), opposite, end-sided end regions (3, 4) of the open tube (2) are pulled over at least one connecting element (5) and the open tube (2) is closed by means of a connecting element (5) to form a ring, wherein, in a step ii), the tube (2), which is closed to form a ring, is coated at least in sections in at least a region of the connecting element (5) with a melt made of plastic, wherein, in a step iii), the connecting element (5) is removed via an opening (6) of the endless tube (1), which is not coated by the melt, in the region of the connecting element (5) or via an opening (7) introduced into the endless tube (1).