普碳钢经济性脱氧工艺平台的建立  

Establishment of economic deoxidation platform technology for carbon steel

作　　者：卿家胜[1,2] 段向东[3] 肖明富 刘青[1,2] 

机构地区：[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

出　　处：《炼钢》2015年第3期41-44,共4页Steelmaking

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。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.

关 键 词：普碳钢 脱氧 终点控制 回磷 

分 类 号：TF761[冶金工程—钢铁冶金]