连铸方坯轻压下工艺难点讨论

摘要

Some metallurgical defects such as center segregation,center porosity,shrinkage etc. can be lightened by soft reduction. However the improper soft reduction process will cause the cracks dropped the bloom quality deeply.Bloom soft reduction is the frontier metallurgi-cal technology for its high technical difficulty.Satisfactory results can be obtained by controlling bloom solidification,reduction cize,reduc-tion position etc. strictly.%轻压下可以改善连铸坯中心偏析、中心疏松、缩孔等冶金缺陷，若工艺把握不当，会产生轻压下裂纹，严重影响连铸方坯质量。方坯连铸轻压下技术尚是冶金行业的前沿技术，技术难度高，铸坯凝固、压下量、压下位置等工艺参数需要精确控制才能取得理想的效果。