磁感应强度对高速连铸流动控制结晶器内金属液流动的影响  

INFLUENCE OF MAGNETIC FLUX DENSITY ON THE FLOW IN FC-MOLD OF HIGH SPEED CONTINUOUS CASTING

作　　者：于湛[1,2] 周月明[2] 任忠鸣[1] 

机构地区：[1]上海大学现代冶金与材料制备重点实验室,200072 [2]宝山钢铁股份有限公司研究院

出　　处：《上海金属》2011年第6期36-40,共5页Shanghai Metals

基　　金：国家自然科学基金项目资助(No.50674066;50604010;50874133)

摘　　要：流动控制结晶器(FC-Mold)是高速连铸的重要设备,模拟了流动控制结晶器内金属液的流动情况,研究磁感应强度对结晶器内金属液流动的影响。实验结果表明:静磁场不仅具有制动钢液流的作用,还具有阻碍金属液运动,改变流动方向的作用。高速连铸采用FC-Mold,能够改善结晶器内金属液流动;磁感应强度增大,自由液面的流动得到改善,液面波动受到抑制,下环流的冲击强度减小。Flow control mold（FC-Mold） is a key processing technique in high speed continuous casting.An experimental mold was built to study the flow in high speed continuous casting with FC-Mold.The effect of magnetic field on liquid flow was simulated by using mercury.The results showed that the magnetic field could not only damp the flow,but also hinder the liquid metal flow and change its direction.The flow could be improved by FC-Mold in high speed continuous casting.As the magnetic flux density increasing,the flow at the free surface was improved,the free surface fluctuation was damped,and the impact depth of the downward stream was reduced.

关 键 词：流动控制结晶器 电磁制动 金属液流动 高速连铸 

分 类 号：TG249.2[金属学及工艺—铸造]