Development and future prospect of hot strip rolling technology at Baosteel

Since the 2050 mm hot strip mill was put into operation in 1989, Baosteel has made great achievements in increasing productivity, developing new process technologies and steel products and improving product quality. In the past 18 years from 1989 to 2007 ,Baosteel has constructed five hot strip mills with a total annual capacity of 19.8 Mt. Indices for technology standards, product categories and steel grades, product quality, both technically and economically, take the lead domestically or reached the world class level. As there are many hot strip mills that expected to be put into operation by the end of 2010 ,the overall annual capacity will exceed 30 Mt ,and the product will cover grain oriented （GO） Si steels and alloyed steels.

宝钢热轧带钢生产技术进步与展望

系统地总结了自1989年宝钢2050mm热轧投产以来,宝钢热轧带钢产量提升、工艺技术应用、产品开发、质量改进的历程。从1989年到2007年,通过18年的努力,宝钢热轧技术从无到有,发展到拥有5条热轧宽带钢生产线、年产1980万t热轧钢卷的规模;热轧工艺技术水平、产品种类及等级、主要质量及技术经济指标等都分别达到了国内领先或世界一流水平。随着新的热轧生产线的建成投产,到2010年,宝钢热轧钢卷的生产能力将超过3000万t,并进一步拓展到取向硅钢、合金板带等产品的热轧生产技术领域。