SCREW JOINT FOR PIPE

PROBLEM TO BE SOLVED: To provide a screw joint for a steel pipe, which is a radial seal-type joint and which combines excellent galling resistance and sealability.SOLUTION: In the screw joint for the pipe, plating with a Vickers hardness of 310 or higher is applied to an inner surface of a box, equi...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NAGAHAMA TAKUYA, KAWAI TAKAMASA, UEDA MASATERU, TAKANO JUN, MORIOKA NOBUHIKO, YOSHIKAWA MASAKI, CHIKATSUNE HIROSHI, TAKAHASHI KAZUNARI
Format:	Patent
Sprache:	eng
Schlagworte:	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 PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a screw joint for a steel pipe, which is a radial seal-type joint and which combines excellent galling resistance and sealability.SOLUTION: In the screw joint for the pipe, plating with a Vickers hardness of 310 or higher is applied to an inner surface of a box, equivalent to a screw part and a seal part of the box. In the case where D represents a seal diameter defined by an outside diameter of a pin at a sealing point as a part on an outer peripheral surface of a pin-side nose part firstly coming into contact with an inner peripheral surface of a box-side nose part in screw connection and where δ represents an interference amount defined by a diameter reduction amount when the seal point is diameter-reduced by the box, a seal interference amount ratio in the circumferential direction of the pipe in the seal part, which is computed by δ/D, is 0.002 or more.