1.绪言水岛钢铁厂的宽幅板坯连铸机自1971年1月投产以来,一直是非常顺利地连续工作。在此期间研究和发明了各种新技术,铸造钢种也从高强度钢扩大到深冲冷轧钢板所用板坯,产量也有了显著的提高。关于这台连铸机的设备与操作本刊已经报道过,在此特报告借助连铸工艺生产的深冲低碳A1镇静钢冷轧钢板的质量。一般对冷轧钢板的质量而言,无论是表面质量和内部特性要求都很严格。特别是低碳 1. INTRODUCTION The wide-format slab caster at the Shimadao Iron and Steel Works has been working very smoothly since it was put into operation in January 1971. In the meantime, various new technologies have been researched and invented. The cast steel products have also been expanded from high-strength steels to slabs used in deep-drawn cold-rolled steel sheets, and the output has also been significantly increased. The equipment and operation of this caster has been reported in this paper, where we report the quality of deep-drawn, low-carbon, A1-killed steel cold-rolled steel produced by the continuous casting process. Generally speaking, the quality of cold-rolled steel, both surface quality and internal requirements are very strict. Especially low carbon