钢中夹杂物控制技术进步与发展  

THE PROGRESS AND DEVELOPMENT OF TECHNOLOGY FOR PRODUCING CLEAN STEEL

作　　者：刘建华[1] 刘洪波[1] 

机构地区：[1]北京科技大学冶金工程研究院

出　　处：《河南冶金》2015年第3期1-9,共9页Henan Metallurgy

基　　金：国家自然科学基金资助项目(51374023);海外青年基金项目(51350110515)

摘　　要：钢中夹杂物控制是一个系统工程。自动化炼钢技术的进步、转炉复吹技术的强化、转炉出钢滑板挡渣及远红外成像系统的综合应用、钢渣改质技术的进步、RH高效化应用、中间包电磁感应加热、恒拉速浇注技术水平的提高等系列技术进步,使我国钢铁产品洁净度显著提高,高级别管线钢和船板钢的全氧含量可控制在10 ppm以下,高级别汽车板用钢的全氧可控制在20 ppm以下,轴承钢的全氧可低于5 ppm。同时,气泡浮选夹杂物技术、真空脱氧技术、固体电解质脱氧技术、中间包电磁搅拌技术等夹杂物控制新技术还在研发中,相关新技术的完善将使夹杂物控制技术水平进一步提升。The technology of inclusions control is a system engineering. The technological advancements in steelmaking, such as automatic steelmaking, improving combined blowing technology for converters, slag - blocked tapping in con- verters, infra - red imaging system, steel slag upgrading, high efficiency RH refining furnace, the channel induction heating technology in tundish, and constant speed control technology, have led to significant improvements in steel cleanliness. The total oxygen content can be controlled less than 10 ppm in high grade pipe steel and ship plate steel, less than 20 ppm in high grade automobile steel, and less than 5 ppm in bearing steel. Meanwhile, inclusions removal technique by bubbles flotation, vacuum deoxidation technology, solid oxide electrolyte deoxidation methods, and electromagnetic stirring tech- nique in tundish are still in development. The technology of inclusions control would be raised greatly with the development of related technologies.

关 键 词：洁净钢 夹杂物 新工艺 新技术 

分 类 号：TF703[冶金工程—钢铁冶金]