氧含量影响钢液吸氮的理论研究  

Theoretical Research on Effect of Oxygen Content in Liquid Steel on Nitrogen Absorption

作　　者：张庆国[1] 

机构地区：[1]唐山钢铁集团有限责任公司技术中心

出　　处：《炼钢》2003年第6期25-28,共4页Steelmaking

摘　　要：应用表面结构模式 ,得出表面活性元素氧在钢液表面富集 ,降低钢液吸氮速度 ;其表面层除了有O、Fe原子外 ,还有FeO分子存在。在此研究基础上 ,提出了脱氧合金化及钢包精炼工艺 ,以减少钢液吸氮。By application of a “Surface Structure Model” it is verified that enrichment of surface active oxygen on the surface layer of the liquid steel can reduce the nitrcgen pick-up speed in the liquid steel.On the surface layer of the liquid steel also exist FeO moleculars besides lron and oxygen atoms.On the basis of the study the deoxidation alloying process and Ladle refining process are put forward in order to check nitrogen pick-up in liquid steel.

关 键 词：氧含量 钢液 吸氮 表面结构模型 脱氧 合金化 钢包精炼 

分 类 号：TF701[冶金工程—钢铁冶金]