Login| Sign Up| Help| Contact|

Patent Searching and Data


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
Application Number:
JP2013058697A
Publication Date:
September 29, 2014
Filing Date:
March 21, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
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
Domestic Patent References:
JP2000045267A2000-02-15
JP2008175055A2008-07-31
JP2011208373A2011-10-20
JPH04116123A1992-04-16
JP2012219296A2012-11-12
JP2000288747A2000-10-17
JP2012055904A2012-03-22
JP2012196691A2012-10-18
JPH05293676A1993-11-09
JPH06341422A1994-12-13
JPS5257515A1977-05-12
JP2004042049A2004-02-12
JP2011111673A2011-06-09
Foreign References:
WO2012115138A12012-08-30
US20100308577A12010-12-09
Attorney, Agent or Firm:
Yasushi Hagiwara
Tetsuo Kanamoto
Yoshiaki Kameya



 
Previous Patent: WORK VEHICLE

Next Patent: INSTALLATION STRUCTURE OF WALL PANEL