Based on analysis of various defects of the HCC rounds,the causes are found and proper mea sures are taken,which provides evaluation criteria basis of HCC. bloom quality.

• 通过对水平连铸坯的各种缺陷分析，阐述了缺陷产生的原因及解决措施，为建立水平连铸坯的评定标准提供了依据。