宽厚板结晶器电磁搅拌的设计与运用  

Design and Application of Mould Electromagnetic Stirring in Wide and Thick Plate

作　　者：韦如军 Wei Rujun(Shanghai Baosight Software Co.,Ltd.,Shanghai 201900)

机构地区：[1]上海宝信软件股份有限公司,上海201900

出　　处：《武汉工程职业技术学院学报》2024年第2期6-10,27,共6页Journal of Wuhan Engineering Institute

摘　　要：由于宽厚板对结晶器稳定性的高要求,原有结晶器电磁搅拌技术已难以满足生产宽厚板的要求。为此在宽厚板上采用分段式铁芯磁路设计能增强结晶器水箱的强度和使用稳定性要求。通过数值模拟的方法,对宽厚板铁芯分段式结晶器电磁搅拌的磁路结构进行计算和设计,考察了铁芯饱和尺寸和最大电流作用下的结晶器内磁场分布特征。通过一年的使用数据,使用宽厚板电磁搅拌、厚板探伤降级率、厚板夹渣降级率、厚板气泡降级率及热轧卷渣封锁率都有显著的下降,表面质量改善较好。In producing wide and thick plates,the original technology does not meet production requirements because the wide and thick plates demand high stability of the crystallizer.Therefore,a segmented core magnetic circuit design is proposed to improve the strength and stability of the crystallizer water tank.Numerical simulation is used to calculate and design the magnetic circuit structure for wide and thick plate segment molds,investigating the magnetic field distribution under different core saturation sizes and maximum currents.The effectiveness of electromagnetic stirring in wide and thick plate molds is evaluated based on defect degradation rate,slag inclusion degradation rate,bubble degradation rate,and hot rolling slag locking rate.Results from one year's application data show that using electromagnetic stirring for wide and thick plates decreases flaw detection degradation rate slag inclusion degradation rate bubble degradation rate and hot rolling slag sealing rate dropped significantly,resulting in improved surface quality.

关 键 词：宽厚板 分段 结晶器电磁搅拌 数值模拟 表面质量 

分 类 号：TF777[冶金工程—钢铁冶金]