摘要
在杭钢VD精炼炉工业化实验的基础上研究了VD处理过程炉渣组元对GCr15钢中[Al]s的影响,以及VD真空时间和真空度对GCr15钢中总氧的影响.实验结果表明,在2.5～4.5的碱度范围内,随着碱度的升高,VD过程钢中的[Al]s烧损减少,但渣中CaO被还原的趋势增加.随着真空处理时间延长,钢材中的总氧含量先迅速降低,16min后趋于平稳.当真空度大于67Pa时,钢中总氧量随真空度的降低而降低,但在真空度小于67Pa后,降低真空度,钢中总氧含量反而上升.
Based on the industrial experiments of VD treatment at HZSteel,the effect of slag on [Al]s was studied as well as the effects of vacuum holding time and vacuum degree on the total oxygen content. The results show that the higher the basicity,the less the [Al]s reduction in the steel in the basicity range of 2.5～4.5,while the reduction trend of CaO is increased;The longer the vacuum processing,the lower the total oxygen content in the steel,but not obviously decreases after 16 min;When vacuum is more than 67 Pa,the total oxygen content in steel drops with the decrease of the vacuum;However,when vacuum is less than 67 Pa,the total oxygen content in steel rises instead of decreases.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2009年第S1期113-117,共5页
Journal of University of Science and Technology Beijing
关键词
真空时间
真空度
炉渣碱度
[Al]s烧损
vacuum treatment time
vacuum degree
basicity of slag
[Al]s reduction
