普碳钢经济性脱氧工艺平台的建立

炼钢 ›› 2015, Vol. 31 ›› Issue (3): 41-44.

普碳钢经济性脱氧工艺平台的建立

卿家胜

1.北京科技大学钢铁冶金新技术国家重点实验室，北京 100083；2.攀钢集团西昌钢钒有限公司，四川西昌 615000；3. 攀钢集团有限公司，四川攀枝花 617067

收稿日期:2014-07-03 修回日期:2014-09-04 接受日期:1900-01-01 出版日期:2015-06-05 发布日期:2015-06-08
通讯作者: 卿家胜 E-mail:jimmy1153@163.com

Establishment of economic deoxidation platform technology for carbon steel

jimmy knancy

Received:2014-07-03 Revised:2014-09-04 Accepted:1900-01-01 Online:2015-06-05 Published:2015-06-08
Contact: jimmy knancy E-mail:jimmy1153@163.com

摘要/Abstract

摘要： 简述了普碳钢传统脱氧机理，分析对比了铝铁和硅钙钡脱氧的成本。针对铝铁脱氧形成夹杂物多，硅钙钡脱氧不良，浇铸过程浸入式水口侵蚀严重等问题，提出了增碳剂加硅铁脱氧工艺，降低脱氧成本，改善钢水质量。终点碳质量分数为0.04%~0.05%时，成本降低3.68元/t；终点碳质量分数为0.06%~0.10%时，成本降低3.33元/t。同时，针对新工艺带来的回磷和钢水可浇性问题，提出了有效的解决方案。

关键词: 普碳钢, 脱氧, 终点控制, 回磷

Abstract: The traditional deoxidation mechanism of carbon steel was described in this paper, and the deoxidation costs of ferroaluminum and Si-Ca-Ba alloy were analysed and compared. In order to solve the problems such as too many inclusions forming using ferroaluminum deoxidation, bad oxygen removal effect using Si-Ca-Ba alloy deoxidation, and heavy submerged nozzle erosion problems, the deoxidization process of carburant and ferrosilicon was put forward, which could reduce the cost and improve the quality of molten steel. The deoxidation cost was reduced by 3.68 yuan/t, when the end point carbon mass fration was 0.04%~0.05%, the deoxidation cost was reduced by 3.33 yuan/t, when the end point carbon mass fration was 0.06%~0.10%. Meanwhile, the effective solution for rephosphorization and continuous castability which caused by the new technology was proposed.

Key words: carbon steel, deoxidization, endpoint control, rephosphorization

卿家胜1,2，段向东3，肖明富2，刘青1,2 . 普碳钢经济性脱氧工艺平台的建立[J]. 炼钢, 2015, 31(3): 41-44.

jimmy knancy. Establishment of economic deoxidation platform technology for carbon steel[J]. Steelmaking, 2015, 31(3): 41-44.

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