LINING TECHNIQUE AND REHABILITATION PIPE LINE

PROBLEM TO BE SOLVED: To draw efficiently a coil molding into an existing pipeline.SOLUTION: In a lining technique for rehabilitating an existing pipeline 12, a coil molding 16 is laid into the existing pipeline by drawing it into the existing pipeline while rotating a distal end of a coil molding 1...

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Bibliographische Detailangaben
Hauptverfasser:	OKAZAKI NAOTO, EGI HIDEYUKI, HORI TOMOAKI, OZEKI NAOYA, YAMAMOTO TETSUYA, NAKAMURA RYOICHIRO, HARADA TAKAMICHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING 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 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 WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To draw efficiently a coil molding into an existing pipeline.SOLUTION: In a lining technique for rehabilitating an existing pipeline 12, a coil molding 16 is laid into the existing pipeline by drawing it into the existing pipeline while rotating a distal end of a coil molding 16 in a winding direction of the coil molding by a drawing machine 20. A lining pipe 18 with reduced diameter is installed in the coil molding 16. By heating the lining pipe 18 and applying an inner pressure thereto, a cross sectional shape is restored to an approximately true round shape. A lining pipe 14 is laid in the coil molding 16.