连铸钢水过热度对大方坯凝固的影响

1.攀枝花钢铁研究院,四川,攀枝花,617000;北京科技大学,北京,100083

2.攀枝花钢铁研究院,四川,攀枝花,617000

3.攀枝花钢铁研究院,四川,攀枝花,617000

4.北京科技大学,北京,100083

5.北京科技大学,北京,100083

Effect of Liquid Steel Superheat on Solidification of Bloom in Continuous Casting

结合现场研究,利用显式有限差分法计算出不同工艺条件下的铸坯凝固情况;进行了过热度对出结晶器坯壳厚度、方坯表面温度、铸坯凝固过程中坯壳厚度和液相穴的影响的模拟分析研究.模拟结果表明:在拉速相同的情况下,随过热度的增加,出结晶器坯壳厚度减少、表面温度略微增加、铸坯液相穴拉长、坯壳减薄.

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