转炉轴承钢控钛工艺实践
|
摘要
通过对冶炼高端低钛中碳轴承钢55#和SAE1055两个钢种的生产过程的跟踪和数据分析,提出采用低钛铁水以及低钛合金、低钛渣料等方法,从源头控制钛含量的来源。并根据渣中氧化钛还原的热力学规律,对比两个钢种的[Alsol]和(Al_2O_3)/(TiO_2),提出铁水扒渣、转炉双渣、留渣、留钢的工艺保证措施,开发了转炉轴承钢降钛工艺技术。对同行具有很好地借鉴意义。
Based on the smelting production track and data analysis for the two grades of 55# and SAE1055 of high-end low-titanium medium-carbon ball bearing steel,it is proposed out to adopt low-titanium hot metal,low-titanium slag materials to control the titanium content in steel from the source. Based on the thermodynamics law for the reduction of titanium oxide in slag,comparing [Alsol]and( Al_2O_3) /( TiO_2) of the two steel grades,the process guarantee measures: hot metal slagging-off,double slag in converter,slag-remaining and steel-remaining are proposed out,the converter ball bearing steel reducing-titanium process technique is developed. This has a reference significance for others in the same industry.
Based on the smelting production track and data analysis for the two grades of 55# and SAE1055 of high-end low-titanium medium-carbon ball bearing steel,it is proposed out to adopt low-titanium hot metal,low-titanium slag materials to control the titanium content in steel from the source. Based on the thermodynamics law for the reduction of titanium oxide in slag,comparing [Alsol]and( Al_2O_3) /( TiO_2) of the two steel grades,the process guarantee measures: hot metal slagging-off,double slag in converter,slag-remaining and steel-remaining are proposed out,the converter ball bearing steel reducing-titanium process technique is developed. This has a reference significance for others in the same industry.
引文
[1]卢栋,李法兴,韩成明,等.齿轮钢、轴承钢中钛含量的控制[J].冶金丛刊,2014,(2):20~22.
[2]占东平,姜周华,龚伟,等.轴承钢中氮化钛的生成与控制[J].过程工程学报,2009,(6):238~241.
[2]占东平,姜周华,龚伟,等.轴承钢中氮化钛的生成与控制[J].过程工程学报,2009,(6):238~241.