碳脱氧在钢包顶渣改质中的应用

doi:10.13228/j.boyuan.issn0449-749x.20200154

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Abstract In order to further reduce inclusion defects and improve product quality, the modification of ladle top slag based on carbon deoxidation was studied.The production process of cold-rolled products is,hot-metal pre-treatment→BOF converter →RH refining →continuous casting. In order to reduce the content of inclusions in steel, the ladle slag should be modified to reduce its mass percent of TFe. Top slag modification process based on carbon deoxygenation was applied, in which carbon particle was used modify the steel bag top slag, partially replace the aluminum slag ball. Good results were got, the mass percent of TFe in the ladle slag and the mass percent of [O] in the tundish steel were reduced,meanwhile the Al₂O₃ inclusions in the billet was also optimized. Cost savings about 5.16 yuan/t(steel),in the "30 kg carbon particle + aluminum slag ball" modification process, was got.

Key words： carbon deoxidation top slag modification total oxygen ladle application

Received: 01 April 2020

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	Articles by authors
	JIANG Xue-feng
	PENG Fei
	ZHANG Yan-long
	XUE Wen-hui

Cite this article:

JIANG Xue-feng,PENG Fei,ZHANG Yan-long等. Application of carbon deoxidation in ladle top slag modification[J]. Iron and Steel, 2020, 55(9): 43-48.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20200154 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I9/43

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