Longitudinal surface cracks of thin slabs
Longitudinal surface cracks of thin slabs
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DOI：
10.1007/s12613-010-0207-x
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发表时间：
2010-04
期刊：
影响因子：
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通讯作者：
Yan-hui Sun;Y. Ni;Haitao Wang;Zhongbo Xu;Kai-ke Cai
中科院分区：
文献类型：
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作者：
Yan-hui Sun;Y. Ni;Haitao Wang;Zhongbo Xu;Kai-ke Cai
结合CSP厂中碳薄板坯的生产实践，分析了薄板坯纵裂产生的原因及影响因素，并采取了相应的工业措施，消除了纵裂。结果表明，改善保护渣性能、稳定结晶器热流、保持合理的结晶器锥度是减少纵裂纹的有效措施。适当的浇注温度和二次冷却对防止表面纵裂也有重要作用。
Based on the production practice of medium carbon thin slabs in the CSP plant, the reasons and influencing factors for the formation of longitudinal cracks were investigated, and some industrial measures were taken to eliminate the cracks. The results show that the efficient solutions to reduce longitudinal cracks are improving the performance of the mold powder, stabilizing the mold heat flux, and maintaining a proper taper of the mold during casting. Proper pouring temperature and secondary cooling also play important roles in preventing longitudinal surface cracks.