Title:
METHOD FOR FABRICATING WELDED TUBE AND DEVICE FOR PULLING UP SEAM
Document Type and Number:
Japanese Patent JP2003251405
Kind Code:
A
Abstract:
To provide a method and an equipment array for fabricating a welded tube by which edge waves before joining the edges of an open tube are stably prevented without interfering with another device to be inserted in a tube.
Both edge parts 23a, 23b are pulled up in the direction (vertically upward) of an arrow 3 through a shoe 1, which is threaded through between both edge parts 23a, 23b of the open tube 23 passing through in the direction of an arrow 2 between the final fin pass rolls 21 of a forming roll group 8 and squeeze rolls 22 and is made in slidable contact with the inside surfaces of both edge parts 23a, 23b.
Inventors:
OKABE YOSHITOMO
TOYOOKA TAKAAKI
MATSUO TAKAHIRO
TOYOOKA TAKAAKI
MATSUO TAKAHIRO
Application Number:
JP2002057823A
Publication Date:
September 09, 2003
Filing Date:
March 04, 2002
Export Citation:
Assignee:
JFE STEEL KK
International Classes:
B21C37/08; B23K13/00; (IPC1-7): B21C37/08; B23K13/00
Attorney, Agent or Firm:
Eiichi Kobayashi
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