The macrosegregation is formed in central area of the billet resulted from the continuous enrichment of solute during solidification process.
随凝固的进行，液相中的溶质不断富集，最终在铸坯的中心区域形成宏观偏析。
2
In order to enhance the uniformity of slab solidification structure and reduce macrosegregation, a self consumption of vibration excitation of nuclear technology in liquid steel was proposed.