Method of manufacturing a bi-metallic mechanically lined pipe

A bi-metallic mechanically lined pipe (MLP) having an outer pipe 14 of a first carbon steel based material, and an inner liner 16a of a second corrosion resistant material, characterised in that the inner liner is metallurgically bonded 17 to the outer pipe at the extremities of the outer pipe. It c...

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Bibliographische Detailangaben
Hauptverfasser:	John Hamilton, Sylvain Denniel
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MACHINE TOOLS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PIPES PUNCHING METAL SOLDERING OR UNSOLDERING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A bi-metallic mechanically lined pipe (MLP) having an outer pipe 14 of a first carbon steel based material, and an inner liner 16a of a second corrosion resistant material, characterised in that the inner liner is metallurgically bonded 17 to the outer pipe at the extremities of the outer pipe. It can be metallurgically bonded directly to the outer pipe or through the use of an intermediate layer. The bonding can be done using resistance welding around the circumference of the pipe, using one or more contact rollers within and/or external to the pipes. Alternatively laser welding can be used. The MLP is formed by expanding the inner liner within the outer pipe.