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Key Technology Development for 360mm×450mm Bloom Caster at PISCO

机译:太钢360mm×450mm大方坯连铸机关键技术开发

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摘要

The integrated technologies for 360mmx450mm bloom caster and its application results at PISCO (Panzhihua Iron & Steel Co.) were presented. The internal defects of continuously cast bloom such as central porosity, central segregation and center line cracks, were greatly improved by optimizing secondary cooling scheme, mold electromagnetic stirring (M-EMS) and dynamic soft reduction process. The surface depression defect was remarkably decreased by designing proper mold structure, cooling scheme and mold flux. The production practice in the past two years showed that the rate of central porosity, segregation, shrinkage and crack ratings
机译:介绍了360mmx450mm大方坯连铸机的集成技术及其在PISCO(攀枝花钢铁公司)的应用成果。通过优化二次冷却方案,结晶器电磁搅拌(M-EMS)和动态软压下工艺,大大改善了连铸坯的内部缺陷,例如中心孔隙率,中心偏析和中心线裂纹。通过设计合适的模具结构,冷却方案和保护渣,可以有效地减少表面凹陷缺陷。过去两年的生产实践表明,中心孔隙率,偏析,收缩率和裂纹评级

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