摘要
针对韶关钢铁集团有限公司第三炼钢厂宽板坯连铸机生产过程中铸坯出现表面纵裂纹及轧制后板材出现纵裂纹的实际情况,分析宽板坯连铸机铸坯表面纵裂纹的形成原因,并采取控制措施后,铸坯表面纵裂纹得到改善,铸坯表面纵裂纹发生率由4.98%降低到0.46%以下,铸坯轧制综合合格率由为87.5%提高到99%以上。
In light of the actual conditions that longitudinal surface crack on the wide CC slab as well as the longitudinal crack on the rolled sheet products frequently occur in the wide continuous caster of the No. 3 Steel-making Plant of Shaoguan Iron ＆ Steel Co. , Ltd. , the present paper analyzes the real causes to the formation of those defects. The longitudinal surface cracks on the slab have been improved significantly and the occurrence rate of the longitudinal surface crack on the slab is reduced to 0. 46 0% from original 4. 98 % and the comprehensive qualified rate of the rolled stock raised to 99 %from 87. 5 % since appropriate counter measures were taken in the plant.
出处
《炼钢》
CAS
北大核心
2010年第4期24-27,共4页
Steelmaking
关键词
连铸机
铸坯
表面纵裂纹
控制措施
continuous casting machine
continuous casting slab
surface longitudinal cracks
control measure
