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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9592575 B1

PDFFull Text
Date of Patent:
Mar. 14, 2017

Filed:

Apr. 06, 2012

Weld metal having excellent resistance to hydrogen embrittlement susceptibility

Applicants:

Hidenori Nako, Kobe, JP;

Takuya Kochi, Kobe, JP;

Wataru Urushihara, Kobe, JP;

Munenobu Sato, Fujisawa, JP;

Yoshihiko Kitagawa, Fujisawa, JP;

Inventors:

Hidenori Nako, Kobe, JP;

Takuya Kochi, Kobe, JP;

Wataru Urushihara, Kobe, JP;

Munenobu Sato, Fujisawa, JP;

Yoshihiko Kitagawa, Fujisawa, JP;

Assignee:

Kobe Steel, Ltd., Kobe-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Rebecca Lee

Int. Cl.
CPC ...
B23K 35/30 (2006.01); B23K 9/02 (2006.01); B23K 9/173 (2006.01); B23K 35/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/50 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
B23K 35/3093 (2013.01); B23K 9/02 (2013.01); B23K 9/173 (2013.01); B23K 35/0266 (2013.01); B23K 35/3053 (2013.01); B23K 35/3066 (2013.01); B23K 35/3073 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/50 (2013.01); C22C 38/58 (2013.01); B23K 2203/04 (2013.01);
Abstract

The weld metal of the present invention is formed by gas shield arc welding using a flux-cored wire, has a predetermined chemical component composition, and contains 20% or more of Ti. The amount of Ti-containing oxide particles having a circle-equivalent diameter of 0.15-1.0 μm is at least 5000 per square mm, the amount of V per total mass of weld metal present as a compound within the weld metal is 0.002% or more, and the average circle equivalent diameter of V-containing carbide present in the weld metal is 15 nm or less.

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