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| 板坯表面裂纹 (【技】板坯表面裂纹是板坯的常见表面缺陷，较深的板坯表面裂纹在连铸中会导致拉漏事故，在后续轧制中会影响钢材质量，甚至造成废品。板坯表面裂纹通常包括：表面纵裂纹、表面横裂纹、偏离角裂纹、热应力裂纹等。) | |||
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