复合电磁场对连铸结晶器弯月面金属液运动行为及铸坯质量的影响

钢铁研究学报, 2000, 12(Z1): 36-40.

复合电磁场对连铸结晶器弯月面金属液运动行为及铸坯质量的影响

张志峰 ^1, , 李廷举 ^2, , 温斌 ^3, , 金俊泽 ^4,

1.大连理工大学铸造工程研究中心,辽宁,大连,116023

2.大连理工大学铸造工程研究中心,辽宁,大连,116023

3.大连理工大学铸造工程研究中心,辽宁,大连,116023

4.大连理工大学铸造工程研究中心,辽宁,大连,116023

基金项目: 国家自然科学基金(59674033) 国家重大项目(59995442) 国家重点基础研究发展计划(973计划)(G1998061500)

关键词：连续铸造 , 复合电磁场 , 磁场分布 , 弯月面波动 , 铸坯 , 表面质量 , 凝固组织

Effect of Multi-Electromagnetic Field on Motion State at Meniscus and Quality of Continuous Casting Metals

为了获得高质量的连铸坯,提出了在连铸结晶器外施加复合电磁场的电磁铸造方法.规范和测定了冷坩埚式铜铸型内复合电磁场的分布;采用低熔点金属镓和Sn-4.5 %Pb合金模拟高熔点钢,研究了在水冷铜铸型外施加复合电磁场对结晶器弯月面处金属液运动行为及铸坯质量的影响.实验结果表明:复合电磁场能够有效地抑制结晶器弯月面处金属液波动变形,并改善铸坯的表面质量.随着搅拌线圈磁通密度的增加,铸坯的凝固组织由柱状晶转变为等轴晶,使晶粒得到细化.

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复合电磁场对连铸结晶器弯月面金属液运动行为及铸坯质量的影响

Effect of Multi-Electromagnetic Field on Motion State at Meniscus and Quality of Continuous Casting Metals

参考文献