电脉冲处理钢液改善铸坯凝固组织的工业化试验  

Industrial Experiment and Study on Improving Solidification Structure of Concast Billet with Liquid Steel Treated by Electro-pulse

作　　者：李平[1] 关勇[1] 唐雪峰[1] 王阿鼎[1] 丁丽华[1] 

机构地区：[1]鞍山钢铁集团公司,辽宁鞍山114001

出　　处：《过程工程学报》2006年第z1期57-61,共5页The Chinese Journal of Process Engineering

摘　　要：在鞍钢工业生产中利用电脉冲孕育处理技术,开展了改善和细化连铸坯凝固组织的探索性工业化试验研究.对方坯和板坯的浇注过程进行电脉冲处理的结果表明,连铸坯的凝固组织明显细化,与未经电脉冲处理的连铸坯相比,连铸坯的柱状晶低倍形态由粗长的凝固组织变成细短的凝固组织,柱状晶的长度明显缩短,连铸坯的中心等轴晶区扩大,可减少连铸坯的内部质量缺陷.The exploratory testing study of modifying and fining the solidification structure of concast billet is carried out in large-scale industrial production with the technology of electro-pulse modification in Anshan Iron and Steel Group Co.The results show that concast billet and slab treatment by electro-pulse can obviously fine the solidification structure of concast billet.Compared with the untreated one,its macroscopic morphology changes from a long thick structure into a short thin one,the columnar crystal length shortens greatly,the area of central isometric crystals of concast billet is enlarged and the inside quality defects of concast billet are decreased.

关 键 词：电脉冲 孕育 凝固组织 细化 

分 类 号：TF777[冶金工程—钢铁冶金]