430不锈钢冶炼过程的夹杂物

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Abstract Samples taken from the end of AOD, LF and tundish casting operations of the AOD-LF-TD process during 430 stainless smelting process were investigated and identified through the scanning electron microscope with an EDS X-ray analyzer to characterize the inclusions in terms of the chemical composition, size and morphology. The results show that the total oxygen content, the inclusion content and size decrease throughout the AOD-LF-TD process. Additionally, the types of inclusions change at different stages of the process; the inclusions in AOD are mainly CaO-SiO2-MgO compounds, while in LF and tundish, it is detected mostly CaO-SiO2-MgO-Al2O3 inclusions, besides, inclusions with MnO compound are also found in tundish. Meanwhile, the inclusions in AOD with the compounds of CaO-SiO2-MgO are found to be close to the slag composition. The variation of the composition of the inclusions in LF and tundish are related to the refining process, continuous casting protection as well as temperature drop.

Key words： 430 stainless steel inclusion origin

Received: 08 April 2011 Published: 16 January 2012

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	Articles by authors
	FU Bang-Hao
	HOU Hai-Bin
	CHEN Tiao
	CHENG Guo-Guang
	PAN Ji-Xiang
	LI Yan
	PAN Wei

Cite this article:

FU Bang-Hao,HOU Hai-Bin,CHEN Tiao等. Inclusions in 430 Stainless Steelmaking During AOD-LF-CC Process[J]. Iron and Steel, 2012, 47(1): 40-43.

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http://www.chinamet.cn/Jweb_gt/EN/ OR http://www.chinamet.cn/Jweb_gt/EN/Y2012/V47/I1/40

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