中频感应电炉炉内钢液精炼的应用研究  

Research of Refining Molten Steel in Medium Frequency Induction Furnace

作　　者：潘继民[1] 赵靖宇[1] 张炎[1] 肖志云[1] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450002

出　　处：《铸造技术》2011年第8期1162-1164,共3页Foundry Technology

摘　　要：针对目前中频感应电炉缺乏精炼功能,铸件中夹杂物及气体含量经常超标的问题,采用在炉底安装透气砖吹氩气的方法实现钢液精炼,并进行了工业应用试验。结果表明,在吹氩压力0.3-0.4 MPa和时间25-30 min条件下,较理想地实现了钢液的精炼,钢液中[O]、[N]和[H]的含量分别达到：≤40×10^-4%、≤85×10^-4%和≤3.0×10^-4%,非球形夹杂物含量低于锻造标准,球形氧化夹杂物含量降幅达到47.33%-56.57%。Considering medium-frequency induction furnace lack of refining function and overproof problem of the content of inclusion and gas.Installing ventilating brick at bottom of furnace for blowing argon was developed and industrial experiment was carried out.Results show that under the pressure intensity of bottom argon blowing 0.3-0.4 MPa and the time 25-30 min,the perfect effect was achieved.The contents of and [H] of molten steel are under 30 ppm、45 ppm and 2.0-2.5×10^-4%,respectively.The content of non-orbicular inclusion is under the criterion of forging,the content of orbicular inclusion decreases 47.33%-56.57%.

关 键 词：钢液精炼 底吹氩气 夹杂物 透气砖 

分 类 号：TF741.3[冶金工程—钢铁冶金]