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对天津钢铁有限公司4号板坯连铸机出现的表面裂纹进行了分析,总结了中厚板产生表面纵裂的主要原因。对于如何预防表面裂纹的形成,从改善冶金工艺和优化连铸工艺参数等方面提出相应的预防措施。
The surface cracks appearing on No.4 slab caster in Tianjin Iron & Steel Co Ltd were analyzed, and the main reasons for surface longitudinal cracks in plate were summarized. How to prevent the formation of surface cracks, from the improvement of metallurgical process and optimization of continuous casting process parameters and other aspects of the corresponding preventive measures.