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根据济钢第三炼钢厂的连铸生产,分析厚板产生表面纵裂纹的主要原因有钢水成分、结晶器液面状况、钢水过热度、结晶器的冷却效果、拉速和保护渣等。通过采取措施使板坯表面纵裂纹缺陷得到改善。
According to the continuous casting production of the third steelworks in Jinan Iron and Steel Co., the main reasons for the analysis of longitudinal cracks on the slab are the composition of the molten steel, the liquid level of the mold, the superheat of the molten steel, the cooling effect of the mold, the casting speed and the mold flux. Through the measures to make slab surface longitudinal crack defects improved.