Title:
WELDING SOLID WIRE AND WELDING METAL
Document Type and Number:
WIPO Patent Application WO/2012/086042
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a similar-metal-composition welding solid wire, and welding metals therefor, with which both excellent bead shape and high ultra-low-temperature toughness for the weld joints can be achieved when welding 9% Ni steels together by means of a high-efficiency MIG welding method. A fixed ratio of a REM and O are included in a similar-metal-composition welding solid wire of a 9% NI steel base material, and oxygen is supplied in a trace amount in a range that does not hinder the ultra-low-temperature toughness of the weld joint (1a) but that is capable of forming fine REM oxides in the welding metal (3) and of controlling the welding metal to produce an excellent bead shape. In addition, both Al and Ti are regulated and an argon gas that contains little or no carbon dioxide gas is used as the shield gas in the MIG welding method. Thus, both an excellent bead shape and high ultra-low-temperature toughness for the weld joint (1a) can be achieved.
Inventors:
OKAZAKI Yoshitomi (())
岡崎 喜臣 (())
NAKO Hidenori (())
名古 秀徳 (())
岡崎 喜臣 (())
NAKO Hidenori (())
名古 秀徳 (())
Application Number:
JP2010/073250
Publication Date:
June 28, 2012
Filing Date:
December 22, 2010
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohama-cho 2-chome Chuo-ku, Kobe-sh, Hyogo 85, 〒6518585, JP)
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, 〒6518585, JP)
OKAZAKI Yoshitomi (())
岡崎 喜臣 (())
NAKO Hidenori (())
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, 〒6518585, JP)
OKAZAKI Yoshitomi (())
岡崎 喜臣 (())
NAKO Hidenori (())
International Classes:
B23K35/30; B23K9/173; B23K35/02; B23K9/00
Attorney, Agent or Firm:
OGURI Shohei et al. (Eikoh Patent Firm, Toranomon East Bldg. 10F7-13, Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, 〒1050003, JP)
Claims:
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