真空感应熔炼碳脱氧研究  

STUDY ON DEOXIDIZATION BY CARBON IN VIM REFINING

作　　者：薛正良[1] 李正邦[1] 张家雯[1] 高银露[1] 

机构地区：[1]钢铁研究总院

出　　处：《钢铁》2003年第6期12-14,共3页Iron and Steel

基　　金：国家自然科学基金资助项目 ( 5 0 1740 48)

摘　　要：为制备无固相脱氧产物的高洁净钢 ,在真空感应炉内用碳对无铝高纯铁进行脱氧。研究发现 ,在较高的真空度下炉衬材料的热稳定性对钢液终点氧含量产生决定性的影响。当钢液实际氧含量高于炉衬分解平衡氧含量时 ,碳脱氧反应速度决定于钢液中氧的扩散速度 ;当钢液中实际氧含量低于炉衬分解平衡氧含量时 。In order to produce the extra clean steel without solid deoxidization products, aluminum free super clean iron was deoxidized by carbon in VIM refining. It was found that the final oxygen content in molten steel is highly affected by the thermodynamic stability of lining materials at high vacuum. The carbon deoxidization rate is determined by diffusion rate of dissolved oxygen in molten steel if the oxygen content dissolved in molten steel is higher than the equilibrium oxygen content between lining and molten steel.

关 键 词：真空感应熔炼 碳脱氧 氧化钙炉衬 洁净钢 无铝高纯铁 

分 类 号：TF133[冶金工程—冶金物理化学]