板坯中心裂纹产生的原因及改进措施

Analysis of the cause of centre cracks in slab and improve measurement

通过对板坯中心裂纹的原因进行了分析，并介绍了在连铸机设备精度、拉速、钢水过热度、硫含量和Mn／S等方面采取的防治措施，有效地解决了板坯中心裂纹出现的问题。

The cause of centre crack in slab was analysised. The improve measurement of accuracy of equipment, pulling rate, degree of superheat in liquid steel, content of sulfur and Mn/S were introduced, which solved the problem of centre crack in the New Lin Steel group.