Types of and causes for the surface defects of the CC round billet for pipe - rolling with mandrel mill are analyzed, and quality improvement measures proposed.
2
针对马钢异型坯高效连铸的背景，分析了异型坯生产中铸坯质量的主要缺陷类型：表面纵裂和中心裂纹。
Based on the underground of high efficient CC in Ma 'steel, the longitudinal surface crack and centerline crack, the uppermost defects of beam blank CC production are studied.
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