Title:
An element tube welded part shield device and element tube welded part shield method of a ERW steel pipe
Document Type and Number:
Japanese Patent JP6036773
Kind Code:
B2
Inventors:
Okabe Nochi
Satoshi Goto
Yuji Hashimoto
Yasushi Kato
Satoshi Goto
Yuji Hashimoto
Yasushi Kato
Application Number:
JP2014190169A
Publication Date:
November 30, 2016
Filing Date:
September 18, 2014
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B23K13/00; B21C37/08; B23K13/06; B23K37/00
Domestic Patent References:
| JP4377869B2 | ||||
| JP2005230909A | ||||
| JP2008087022A | ||||
| JP2000079491A | ||||
| JP9194998A | ||||
| JP4305379A | ||||
| JP4033475U |
Foreign References:
| WO2014156057A1 | ||||
| US3588424 | ||||
| FR2686820A1 |
Attorney, Agent or Firm:
Kenichiro Ochiai