Title:
FLUX FOR ONE SIDE SUBMERGED ARC WELDING
Document Type and Number:
Japanese Patent JP2015074011
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a flux for one side submerged arc welding capable of providing a sound top bead shape and mechanical performance.SOLUTION: The flux for one side submerged arc welding has a composition which contains 6 to 12 mass% of Si, Si alloy and Si oxide (SiOreduced value), in total, 3 to 9 mass% of CaO, 15 to 35 mass% of MgO, 5 to 23 mass% of TiO, 2 to 10 mass% of CaF, 5 to 23 mass% of AlO, 2 to 9 mass% of CO, 0.5 to 3 mass% of NaO, 0.1 to 1 mass% of BO, 0.2 to 1 mass% of Mo and 10 to 30 mass% of iron powder, and contains Mn, Ti and Al which are respectively regulated into 0.9 mass% or less, 1 mass% or less and 3 mass% or less. In the composition, a constitutional proportion of iron powder having a particle size of 300 μm or less is 90 mass% or more in the iron powder and, when the content (mass%) of MgO is [MgO], the content (mass%) of AlOis [AlO], the content (mass%) of TiOis [TiO] and the content (mass%) of iron powder is [Fe], the composition satisfies the following expression (1).
Inventors:
HORIGUCHI MOTOHIRO
SHIMAMOTO MASAKI
ISHIDA HITOSHI
MURANISHI YOSHIMASA
OTA MAKOTO
YUKIMURA MASAHARU
SHIMAMOTO MASAKI
ISHIDA HITOSHI
MURANISHI YOSHIMASA
OTA MAKOTO
YUKIMURA MASAHARU
Application Number:
JP2013211910A
Publication Date:
April 20, 2015
Filing Date:
October 09, 2013
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B23K35/362
Domestic Patent References:
| JP2013154364A | 2013-08-15 | |||
| JP2013154363A | 2013-08-15 | |||
| JP2013154364A | 2013-08-15 | |||
| JP2013154363A | 2013-08-15 |
Attorney, Agent or Firm:
Kaoru Watanabe
Miwako Inoue
Keiko Omori
Keita Takeyama
Miwako Inoue
Keiko Omori
Keita Takeyama
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