Study of Improving Cleanness on Master Alloy of Energy Material

Abstract:

The largest proportion of element in master alloys were iron and pure iron smelting industrial used accounts for 70% of the total raw materials. Iron produced by secondary refining has the highest purity. If the inclusion in the raw materials is very low, inclusions in smelting amorphous master alloy would be lower. The carbon content of 0.1% in the carbon-75 ferrosilicon, but ferrosilicon dosage is small, generally is about 10%, so the carbon content in the master alloy is below 0.01%. Boron anhydride generally containing boron oxide at about 95%, the rest is mainly water, contains less impurities, the alumina content is generally below 0.1%, as well as chloride, which have little effect on master alloy smelting. Impurities in additive calcium oxide, calcium fluoride are generally below 10%, mainly are oxides, presenting in the slag in the smelting master alloys basically.

• Periodical: Advanced Materials Research (Volume 577)
• Pages: 18-21
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.577.18
• Online since: October 2012
• Authors: Ding Guo Zhao, Xiao Jie Cui, Shu Huan Wang, Long Chen
• Keywords: Alloy, Cleanness, Inclusion

References

[1] D. G. Zhao, P. M. Guo, P. Zhao. Activity model of Fe-Si-B ternary metallic melts. Journal of Iron and Steel Research, 2011, 18(6): 17~22.

DOI: 10.1016/s1006-706x(11)60071-x

[2] D. G. Zhao, S. H. Wang, C. L. Wang, J. Gao. Thermodynamic research on smelting master alloy by direct reducing boron oxide. AMR Vols. 415-417 (2012) pp.848-852.

DOI: 10.4028/www.scientific.net/amr.415-417.848

[3] C. C. Xu. Smelting technics of ferroalloy. Beijing: Metallurgical Industry Press, 2007: 293.

[4] Y. X. Hua. Dynamic theory of metallurgy. Beijing: Metallurgical Industry Press, 2004：222.

[5] J. Zhang. Calculating models of mass action concentrations for Fe-Si metallic melts. Journal of Iron and Steel Research, 1991, (2): 7.