Title:
RECESSED STEEL PIPE JOINT, JOINT STEEL PIPE, AND JOINT METHOD OF STEEL PIPE
Document Type and Number:
Japanese Patent JP2014181551
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve the problem from a viewpoint of economical efficiency that a weight of the whole steel pipe increases when a steel pipe thickness is thickened, due to requiring to thicken the steel pipe thickness of a recessed steel pipe to be joined to a joint steel pipe by threading work to the recessed steel pipe, since there are consecutive recesses on a surface of the recessed steel pipe.SOLUTION: A joint steel pipe 3 and a recessed steel pipe 2 of forming recesses on the steel pipe surface, are joined by friction welding. When using a recessed steel pipe joint 1 formed by joining the joint steel pipe 3 and the recessed steel pipe 2, other steel pipe can be connected without thickening a thickness of the recessed steel pipe 2.
Inventors:
ENOMOTO KUNIHIRO
TSURU EIJI
MYONAKA SHINJI
TERADA YOSHIO
KAMEYAMA MOTONORI
NAKAHARA KENICHI
NAKATSUKASA TATSUO
TSURU EIJI
MYONAKA SHINJI
TERADA YOSHIO
KAMEYAMA MOTONORI
NAKAHARA KENICHI
NAKATSUKASA TATSUO
Application Number:
JP2013058697A
Publication Date:
September 29, 2014
Filing Date:
March 21, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
KAMEYAMA CO LTD
NAKAHARA MFG CO LTD
NIKKO KK
KAMEYAMA CO LTD
NAKAHARA MFG CO LTD
NIKKO KK
International Classes:
E02D5/24; B23K20/12; C22C38/00; C22C38/06; C22C38/38; E21B17/042; E21D9/04
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Foreign References:
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Attorney, Agent or Firm:
Yasushi Hagiwara
Tetsuo Kanamoto
Yoshiaki Kameya
Tetsuo Kanamoto
Yoshiaki Kameya