Title:
BONDED FLUX AND WIRE FOR SUBMERGED ARC WELDING
Document Type and Number:
WIPO Patent Application WO/2013/024698
Kind Code:
A1
Abstract:
A bonded flux and wire for submerged arc welding capable of obtaining a welded metal having a 0.2% yield strength of 690 MPa or higher, a tensile strength of 780 MPa or higher, and an excellent low-temperature toughness of 69 J or more of absorbed energy at -60°C are provided by optimizing the flux composition and the wire composition. The flux includes 0.10 to 0.40 mass% of metal Ca, 0.3 to 1.0 mass% of metal Si, 0.10 to 0.80 mass% of metal Al, and 2.0 to 5.0 mass% of alkali metals Na, K, Li as a total of values converted to oxides of Na, K, and Li, respectively; and has a ratio ([Al] + [Si] + [Ca])/[SiO2] of 0.04 to 0.15. The wire has a ratio of [Ni]/([Mn] + [Mo]) of 0.4 to 1.7.
Inventors:
HAN PENG
SATO MUNENOBU
KOMIZO YUICHI
ZHANG XINFANG
SATO MUNENOBU
KOMIZO YUICHI
ZHANG XINFANG
Application Number:
PCT/JP2012/069451
Publication Date:
February 21, 2013
Filing Date:
July 31, 2012
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
HAN PENG
SATO MUNENOBU
KOMIZO YUICHI
ZHANG XINFANG
HAN PENG
SATO MUNENOBU
KOMIZO YUICHI
ZHANG XINFANG
International Classes:
B23K35/362; B23K9/18; B23K35/30
Foreign References:
| JPH06328291A | 1994-11-29 | |||
| JP2003039196A | 2003-02-12 | |||
| JPH07171695A | 1995-07-11 | |||
| JPS6313694A | 1988-01-20 | |||
| JPH07256489A | 1995-10-09 | |||
| JPS61147990A | 1986-07-05 | |||
| JPH05337683A | 1993-12-21 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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Claims: