METHOD AND DEVICE FOR BUTT WELDING POLYETHYLENE PIPES AND/OR FITTINGS

A method for butt welding polyethylene pipes (1, 2) and/or fittings, wherein ends of the pipes (1, 2) and/or fittings to be welded together are heated by pressing the ends with a particular heating pressure and for a particular heating time against a welding mirror brought to a welding mirror temper...

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Bibliographische Detailangaben
Hauptverfasser:	VENEMA, PETER, ROELF, SCHOLTEN, FRANS, LUDGERUS
Format:	Patent
Sprache:	eng ; fre ; 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:	A method for butt welding polyethylene pipes (1, 2) and/or fittings, wherein ends of the pipes (1, 2) and/or fittings to be welded together are heated by pressing the ends with a particular heating pressure and for a particular heating time against a welding mirror brought to a welding mirror temperature, wherein the heated ends of the pipes (1, 2) and/or fittings are pressed against each other with a particular welding pressure, while the welding pressure is higher than 200 kPa, and the welding mirror temperature T is lower than 210°C.