复合电磁场作用下连铸金属液弯月面运动规律的热模拟研究  

THERMAL SIMULATION ON MENISCUS MOTION IN THE CONTINUOUS CASTING WITH MULTI-ELECTROMAGNETIC FIELD

作　　者：张志峰[1] 李廷举[1] 金俊泽[1] 

机构地区：[1]大连理工大学铸造工程研究中心,大连116024

出　　处：《金属学报》2001年第9期975-979,共5页Acta Metallurgica Sinica

基　　金：国家自然科学基金 50071015;重大项目基金 59995442;国家重大基础研究基金 G1998061500资助

摘　　要：采用 Ｗｏｏｄ ａｌｌｏｙ作为钢液的模拟工质，研究了复合电磁场作用下连铸结晶器内弯月面运动的变化规律 结果表明：（１）施加复合电磁场不仅能够有效地控制由于结晶器内电磁搅拌导致得弯月面运动，而且能够实现弯月面与结晶器壁的分离，形成具有一定高度的悬浮液柱，使得弯月面的稳定性得到提高；（２）两个感应线圈的工作位置对弯月面形状有很大的影响。就本实验装置系统而言，搅拌线圈中心面位于液面下部 ２０ ｍｍ左右时液面凹陷深度最大；金属液面控制在高频线圈中心面附近时可获得最大的接触角。ddWood alloy, as simulated media of molten steel, was used to investigate meniscus behavior under condition with multi-electromagnetic field. Experimental results showed that, (1) Meniscus disturbance generated by electromagnetic stirring could be controlled efficiently, and also separation between meniscus and mold was realized, and suspended melt column with certain height could be formed, stability of meniscus was improved greatly. (2) The location of the two coils had great effect on meniscus contour. Based on the experimental apparatus, the biggest stirring intensity was obtained when the center level of the stirring coil was fixed about 20 mm below molten metal level; and the biggest contact angle was gained when molten metal level was controlled near to the center level of the high frequency coil.

关 键 词：复合电磁场 弯月面 软接触 电磁搅拌 连铸 热模拟 

分 类 号：TF777[冶金工程—钢铁冶金]