PRODUCTION METHOD AND PRODUCTION DEVICE FOR PIPE WITH SPIRALLY GROOVED INNER SURFACE

A method includes: the step of sending a raw tube (11) from a drum (21) to an unwinding side capstan (22) while the raw tube (11) is rotated around a central axis (C) perpendicular to a winding shaft (21a) of the drum (21) by rotating the drum (21) and the unwinding side capstan (22) about the centr...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SAKAGAMI, Takeshi, NAKAURA, Yusuke, HATERUMA, Yuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING
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