摘要
以汽车钢的LF炉精炼处理过程为研究对象,通过对试验钢种进行钙处理和不进行钙处理进行研究,在静吹的不同时间段进行取样分析,对夹杂物的成分,数量以及大颗粒夹杂物数量进行统计分析,并通过后期的连铸浇铸过程塞棒的变化来评价试验生产效果。结果表明,未进行钙处理炉次夹杂物成分能够稳定在低熔点的MgO·Al2O3类复合夹杂区域,这些夹杂物在精炼过程当中能够有效去除,其数量密度和大颗粒夹杂物的尺寸能够满足钢种洁净度的要求,水口无结瘤情况发生,对生产的稳定顺行没有产生不良影响,此钢种精炼过程可以进行无钙化处理。
This paper takes the LF furnace refining process of automobile steel as the research object,studies the experimental steel with and without calcium treatment,samples and analyzes in different time periods of static blowing,and makes statistical analysis on the composition and quantity of inclusions and the quantity of large particle inclusions,The experimental production effect is evaluated by the change of stopper in the later continuous casting process.The results show that the inclusion composition of the furnace without calcium treatment can be stabilized in the MgO·Al2O3 composite inclusion area with low melting point.These inclusions can be effectively removed in the refining process.Their quantity density and the size of large particle inclusions can meet the requirements of steel grade cleanliness.There is no nodulation at the nozzle,which has no adverse impact on the stability and smooth operation of production,this steel can be treated without calcification in the refining process.
作者
王勃超
Wang Bochao(Tangshan Stainless Steel Co.,Ltd.Tangshan 063100,China)
出处
《冶金信息导刊》
2021年第6期35-38,共4页
Metallurgical Information Review
关键词
汽车钢
精炼
夹杂物
无钙化
automotive steel
refine
Inclusions
free calcification
