影响中心偏析的类型和程度的因素主要取决于铸速、冷却和铸机类型(如导辊间距等),以及钢水过热度。英国钢铁公司发现采用液芯轻压下技术和降低钢水过热度可以基本解决上述问题。液芯轻压下区选择在第35～40导辊区。通过试验发现最佳轻压下是在中心区的凝固部分达到20%～7... The factors that affect the type and degree of center segregation depend mainly on casting speed, cooling and caster type (such as guide roller spacing), and the superheat of the molten steel. British Iron and Steel Company found that the liquid core pressure reduction technology and reduce the superheat of molten steel can basically solve the above problems. Under the pressure of liquid core pressure area in the 35 ~ 40 guide roller area. Through the experiment found that the best light pressure is in the central part of the solidification part of 20% ~ 7 ...