Non-corona hot ion stream injecting and polarizing method for processing polyethylene outer sleeve of direct buried anticorrosion insulating tube

A non-corona hot ion stream injection and polarization method for treating the polyethylene outer sleeve of directly buried anticorrosion insulating tube features that before the hard foam plastics of polyurethane is foamed, the internal surface of polyethylene sleeve is heated uniformly in moving m...

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Bibliographische Detailangaben
Hauptverfasser:	XIAOYI JIA, YONGFU JI
Format:	Patent
Sprache:	eng
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 non-corona hot ion stream injection and polarization method for treating the polyethylene outer sleeve of directly buried anticorrosion insulating tube features that before the hard foam plastics of polyurethane is foamed, the internal surface of polyethylene sleeve is heated uniformly in moving mode while hot ions stream is injected, and then it is quickly cooled for solidification. Its advantages are low cost and simple apparatus. The treated sleeve has high adhesion to hard foam plastics of polyurethane (360 KPa or more), high quality and long service life.