提高含钛不锈钢钛收得率的工艺实践  

Process Practice of Increasing Yield of Stainless Steel Containing Titanium

作　　者：张春亮[1] 王建昌[1] 张永亮[1] Zhang Chunliang;Wang Jianchang;Zhang Yongliang(Shanxi Taigang Stainless Steel Co.,Ltd.,Taiyuan Shanxi 030003)

机构地区：[1]山西太钢不锈钢股份有限公司,山西太原030003

出　　处：《山西冶金》2021年第6期91-93,共3页Shanxi Metallurgy

摘　　要：为提高含钛不锈钢钛的收得率,基于铁水三脱→K-OBM-S转炉→VOD→LF→CC生产工艺路线,采用Fe Si和Al复合脱氧的方式,提高钢中w(Al),且控制钢中w(O)≤25×10^(-6),并在连铸过程中采取降低钢中w(O)及炉渣氧化性、控制钢中合理的w(Al)、控制吹氩强度及搅拌时间、防止二次氧化等措施,使钛的收得率由75%提高到85%。In order to improve the titanium yield of titanium containing stainless steel,based on the production process route of hot metal pretreatment process→K-OBM-S converter→VOD→LF→CC,the method of composite deoxidation of Fe Si and Al is adopted to improve w(Al)in steel and control w(O)≤25×10^(-6).In the process of continuous casting,measures such as strengthening the reduction of w(o)and slag oxidation in steel,controlling reasonable w(Al)in steel,controlling argon blowing intensity and stirring time,and preventing secondary oxidation were taken to increase the yield of titanium from 75%to 85%.

关 键 词：不锈钢 氧含量 钛收得率 

分 类 号：TF769[冶金工程—钢铁冶金]