Study on the Desulphidation in Basic Electrode Welding

Abstract:

The behaviors of desulphidation during manual metal arc welding have been studied by means of experimental and theoretical analysis. The results indicated that the relationship curve between the distribution of sulphur in slag and deposited metal (Ls) and coating basicity of elect rode ( B1) was a parabolic shape with a maximum value. With the increase of FeO content in slag, Ls decreased and the sulphur content in deposited metal increased. With increasing coating basicity , the activity of oxygen ion in slag , FeO content in slag and oxygen potential of arc atmosphere increased. In teraction of them made that relationship between sulphur content in deposited metal and B1 had a minimum value.

• Periodical: Advanced Materials Research (Volume 684)
• Pages: 330-333
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.684.330
• Online since: April 2013
• Authors: Zheng Xiong, Dan Hua Tang, Hong Wei Wang
• Keywords: Basic Electrode, Desulphidation, Distribution of Sulphur, Manual Metal Arc Welding

References

[1] E. Nagels, J.R. Duflou, J, Van Humbeeck. Journal of Materials Processing Technology, Vol. 194(2007), p.159.

[2] Wahab, M.A., Sabathy P.N., Painter M.Y. Journal of Materials Processing Technology, Vol. 108(2005), p.422.

[3] Dixon B.F. Metal Construction, Vol. 11 (1987), p650R.

[4] Heiple C.R., Roper J.R., Welding Journal , Vol. 61(1982), n 4, p.97.

[5] Chen boli: Principles of welding metallurgy. Tsinghua University Press, Beijing (1994).