With a bloom caster of steel factory as research background, the establishment of dynamic soft reduction zone model was introduced.
以某钢厂方坯连铸机为研究背景,介绍了建立动态轻压下压下区域模型的方法。
From the results of heat transfer model, generally used critical solid fraction and limit solid fraction, the soft reduction zone was obtained.
结合传热模型计算的温度分布和普遍使用的临界固相率、极限固相率,得出了轻压下的压下区域。
The simulation results show that mushy region is compressed and interdendritic solute-rich liquid flows toward the liquid core in the soft reduction action zone at the solidification end of the slab.
在铸坯凝固末端轻压下直接作用区域,两相区受到压缩,枝晶间富含溶质的液相被挤出,相对于铸坯向液芯方向流动。轻压下之后,铸坯中心区域由糊状区内被压缩的固相及残留的液相构成,中心区域偏析指数下降。
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