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Control of longitudinal cracks on Mn13 slab surface during continuous casting
Author(s): 
Pages: 32-36
Year: Issue:  6
Journal: Bao-Steel Technology

Keyword:  Mn13板坯连铸垂直连铸表面缺陷纵裂纹;
Abstract: 针对Mn13钢种在板坯连铸生产时发生表面纵裂纹缺陷的问题,结合Mn13材料凝固的特点,在工业生产中对浇铸过热度、拉速、水口对中、水口插入深度等工艺参数进行摸索,优化了保护渣化渣条件,保证了液渣在弯月面的均匀流入,改善了结晶器润滑与铸坯传热,控制了初生坯壳生长的均匀性,从而解决了Mn13板坯的表面纵裂纹缺陷,实现了Mn13的板坯多炉连铸生产,提高了铸坯合格率,由50%以下提高到96%.
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