Process and apparatus for the production of a pipe-within-a-pipe line

The invention relates to a process for producing a pipe-within-a-pipe line, comprising at least one preferably flexible supply line (12), in particular a medium-channelling inner pipe, which is enclosed, with a degree of clearance, by an in particular flexible outer pipe (10). In the case of said pr...

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Bibliographische Detailangaben
1. Verfasser:	HOEFFKER, BRUNO, 48432 RHEINE, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELEMENTS OR COMPONENTS THEREFOR ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE RANGES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING VENTILATING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a process for producing a pipe-within-a-pipe line, comprising at least one preferably flexible supply line (12), in particular a medium-channelling inner pipe, which is enclosed, with a degree of clearance, by an in particular flexible outer pipe (10). In the case of said process, use is made of an outer pipe (10) which is opened up essentially in the direction of the longitudinal axis. Said outer pipe (10) is widened in order to form a wall opening (60). Subsequently, the supply line (12) is introduced into the widened outer pipe (10) through the wall opening (60) thereof. After the supply line (12) has been introduced, the wall opening (60) is closed. The process can be carried out in continuous operation and, furthermore, can follow on-line on the production of the outer pipe and/or supply line.