REMOVING METHOD FOR INNER FACE BEAD OF WELDING PIPE

REMOVING METHOD FOR INNER FACE BEAD OF WELDING PIPE

PURPOSE:To obtain a weld zone of a good quality and to extend the service life of a pressure fitting roller by forming by the press-fitting roller the inner face of the following weld zone after shaving the welding bead by a shoe. CONSTITUTION:After pressure welding both edge parts 13 heated by an o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUGIE YOSHINORI, HASEGAWA KATSUHIRO
Format: Patent
Sprache:eng
Schlagworte:
DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
PERFORMING OPERATIONS
POLISHING
TRANSPORTING
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Beschreibung
Zusammenfassung:PURPOSE:To obtain a weld zone of a good quality and to extend the service life of a pressure fitting roller by forming by the press-fitting roller the inner face of the following weld zone after shaving the welding bead by a shoe. CONSTITUTION:After pressure welding both edge parts 13 heated by an open pipe 12 by a squeezing roll 14 the welding bead 3 formed on the inner face of the weld zone is shaved by a shoe 21. The inner face of the weld zone of after the welding bead 3 being shaved is made smooth with a rolling reduction at a light load by a pressure fitting roller 17. As a result, the rolling amt. by the pressure fitting roller 17 can be reduced and its service life can be extended.