Elastic inner-expansion tube expander

The utility model discloses an elastic inner-expansion tube expander, which comprises a spindle.The spindle is a cylinder equipped with steps and is equipped with an inlet port.The inlet port communicates with a radial oil outlet opening.The outer circle of the spindle is matched with a sealing ring...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WEI ANJIA, SHEN GANRONG, YANG WEIFANG, FU RUNIAN, XU ZHIRU, SHEN YANG, SHEN BAIFANG, GU SUMIN
Format:	Patent
Sprache:	chi ; 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:	The utility model discloses an elastic inner-expansion tube expander, which comprises a spindle.The spindle is a cylinder equipped with steps and is equipped with an inlet port.The inlet port communicates with a radial oil outlet opening.The outer circle of the spindle is matched with a sealing ring and the sealing ring is equipped with an oil chamber.The oil chamber communicates with the oil outlet opening.The outer circle of the sealing ring is matched with an expansion ring.The elastic inner-expansion tube expander has the advantages of better sealing effect and convenient operation, thus is widely used in the field of expanding joint technology.