重轨钢中的夹杂物与脱氧制度  

INCLUSIONRELATED DEOXIDATION TECHNOLOGY FOR HEAVY RAIL STEEL

作　　者：单麟天[1] 

机构地区：[1]攀枝花钢铁(集团)公司

出　　处：《钢铁》1997年第5期81-84,共4页Iron and Steel

摘　　要：论述了重轨钢中各种夹杂物对疲劳性能的影响,指出链状Al_2O_3夹杂对钢轨疲劳性能危害最大。在无真空处理条件下,采用复合合金脱氧以减少Al_2O_3夹杂并对其变性处理;在具备真空处理及连铸条件下,采用无铝脱氧工艺消除Al_2O_3夹杂,是改善钢轨疲劳性能的有效途径。The paper describes the effect of various inclusions on the fatigue property of heavy rail steel, indicating that the chain-shape inclusion of Al_2O_3 is most detrimental. If vacuum refining facility is not available, deoxidation with compound alloys should be conducted to reduce and modify Al_2O_3 inclusion; under the conditions of vacuum treatment and continuous casting, Al-free deoxidizing technique must be adopted to reduce Al_2O_3 inclusion, as an effective way to improve the fatigue property of rail steel.

关 键 词：重轨钢 夹杂物 脱氧 疲劳性能 炼钢 

分 类 号：TF703.54[冶金工程—钢铁冶金] TF704.1