AOD冶炼不锈钢氮合金化控制模型的研究和应用  

Study and Application on Nitrogen Alloying Control Model for Stainless Steel Refining by AOD Process

作　　者：孙铭山[1] 邹勇[1] 范光伟[1] 

机构地区：[1]太原钢铁(集团)有限公司技术中心,太原030003

出　　处：《特殊钢》2008年第6期7-9,共3页Special Steel

摘　　要：根据氮在钢中的溶解热力学和脱除动力学理论,建立了AOD精炼氮合金化的控制模型。经45 t AOD装置精炼0Cr19Ni9N不锈钢(%:≤0.08C、18～20Cr、8～11Ni、0.10～0.16N)的应用结果表明,模型计算值与实测值吻合良好,可通过AOD氮气溶解和氩气脱除,精确控制不锈钢的N含量。Based on theory of solubility of nitrogen in steel and de-nitriding kinetics, the control model of nitrogen alloying during AOD refining has been established. The application results for refining stainless steel 0Crl9Ni9N （ ≤0. 08C, 18 -20Cr, 8 - 11Ni, 0. 10 -0. 16N） by a 45 t AOD unit showed that it was available to accurately control N content in stainless steel by solubility of nitrogen and de-nitriding in AOD process and the data calculated by model nicely conformed to real measured data in production.

关 键 词：AOD 氮合金化 控制模型 

分 类 号：TF764.1[冶金工程—钢铁冶金] TP273[自动化与计算机技术—检测技术与自动化装置]