Formation of Cr-Bearing Species in Stainless Steelmaking Dust by Induction Furnace

Yi Fang; Guo Jun Ma; Xiang Zhang; Chen Hui Wang; Bu Xiao Kuang; Fu Yang

doi:10.4028/www.scientific.net/AMR.634-638.3185

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 634-638Formation of Cr-Bearing Species in Stainless...

Formation of Cr-Bearing Species in Stainless Steelmaking Dust by Induction Furnace

Abstract:

Stainless steelmaking dust contains significant levels of Cr-bearing phases (typically 0.28~16.5%). In this study, stainless steel was produced in an induction furnace, dust generated during the smelting process is collected in order to classify dust formation mechanisms and effects of operation parameters of smelting process on the formation of Cr(VI) species in the dust. The results showed that approximately 60% of dust generated during stainless steelmaking process by induction furnace is due to entrainment of charge fines, about 30% of dust formed due to metal and slag splashing result in oxygen and argon injection, and only about 10% of dust are formed through vaporization from the melt bath. In addition, the Cr-bearing phases in the dust mainly generate due to slag and metal splash. It can increase Cr(VI) content in the dust by increasing the chromium content in the molten steel, the amount of slag former and temperature of molten. To accelerate the cooling rate during the sampling period will decrease the Cr(VI) content in the dust.

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Periodical:

Advanced Materials Research (Volumes 634-638)

Pages:

3185-3188

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.634-638.3185

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Online since:

January 2013

Authors:

Yi Fang, Guo Jun Ma, Xiang Zhang, Chen Hui Wang, Bu Xiao Kuang, Fu Yang

Keywords:

Chromium, Dust, Induction Furnace, Stainless Steel (SS)

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