A welding defect detection method, a manufacturing method of a ERW steel pipe, and a manufacturing method of welding products

Title:

A welding defect detection method, a manufacturing method of a ERW steel pipe, and a manufacturing method of welding products

Document Type and Number:

Japanese Patent JP5909870

Kind Code:

B2

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Inventors:

Okabe Nochi
Toshifumi Kodama
Kozo Iizuka
Hiromichi Hori
Kenichi Iwasaki
Yokoyama
Masatoshi Aratani
Shunsuke Toyota

Application Number:

JP2011099439A

Publication Date:

April 27, 2016

Filing Date:

April 27, 2011

Export Citation:

Assignee:

jfe Steel Corporation

International Classes:

B23K13/00; B21C37/08; B21C51/00; B23K13/02; B23K13/08; B23K31/00; G01N29/14

Domestic Patent References:

Attorney, Agent or Firm:

Kenichiro Ochiai
Eiichi Kobayashi

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