【作者】 屈天鹏； 韩志伟； 冯科；

【Author】 QU Tian-peng,HAN Zhi-wei,FENG Ke (1.CISDI Chongqing Iron & Steelmaking Plant Integration Co.,Ltd.,Chongqing 401122,China;2.CISDI,Chongqing 400013,China)

【机构】 中冶赛迪国家钢铁冶炼装备系统集成工程技术研究中心； 中冶赛迪工程技术股份有限公司；

【摘要】 针对某钢厂生产连铸坯普遍存在角部裂纹的生产现状,从钢种成分控制、结晶器操作、二冷控制等方面进行了详细分析,提出了严格控制钢种化学成分、稳定结晶器液面、弱化结晶器冷却、提高铸坯矫直温度和降低二次冷却强度的控制措施。通过调整结晶器和二次冷却强度,提高了铸坯的矫直温度,减少了铸坯角裂的发生率,大大提高了铸坯的合格率,降低了企业生产成本。更多还原

【Abstract】 Based on the corner crack in continuous casting slabs in certain steel plant,analysis on steel composition,mold operation,secondary cooling control and so on has been carried out to obtain suitable measurements to reduce the corner crack rate.The slab quality could be controlled by controlling steel composition,stabilizing surface of mold,reducing cooling rate of mold and secondary cooling to increase surface temperature of casting slabs.By adjusting the cooling rate of mold and secondary cooling the slab quality has been improved and the cost also has been reduced.更多还原