摘要
薄板坯连铸技术是国家“七五”重点技术攻关项目,冶金部钢铁研究总院在“七五”实验室及现场热试研究的基础上,从1991年1月至1902年6月,在兰州钢厂薄板坯连铸机上,对3种规格铸坯(50×900 mm,70×900 mm,70×500 am)进行了连续102炉考核试验,其中,1992年6月,共浇注46炉,铸坯总重412 t,连铸拉成率为91.3％,铸坯合格率>90％,完成了国家“八五”一期攻关考核指标。本文对薄板坯连铸工艺中结晶器形状研制、传热、拉坯工艺及影响铸坯质量,尤其是表面质量的因素进行了深入研究,并取得了稳定的工艺参数。
Continuous casting of thin stabs is a key state project for 7th and 8th five-year plans. On the basis of foundamental works, CISRI conducted the tests of 102 heats in Lanzhou Steel Works in the period of January 1991-June 1992. Three slab assortments of 50×900 mm, 70×900 mm, 70×500 mm were examined. In June of 1992, 412 t steel of 46 heats were cast with the efficiency of 91.3 %, This result meets the requirement of the state in this period. The mould, heat transfer, casting technology and factors influencing slab's qualities are investigated as well.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
1993年第3期7-14,共8页
Journal of Iron and Steel Research
关键词
结晶器
薄板坯
工艺
连续铸钢
mould, 'continuous' casting of thin slab, technological properties
