摘要
对某厂产品中发现的含ZrO2类Ds夹杂物Ds类夹杂物来源进行了系统性的分析和研究,研究结果表明含ZrO2类Ds夹杂物产生的直接原因在于含Zr浸入式水口发生脱碳,脱碳通道内CaO-Al2O3-SiO2(-MgO)相中的SiO2将被钢液中的Al还原,最终成为CaO-Al2O3(-MgO)相,ZrO2仅起到了类似示踪剂的作用。
The Ds inclusions containing ZrO2 found in the products of a factory were systematically analyzed and studied,The results show that decarburization of Zr-containing immersion nozzles leads to the inclusion of ZrO2-containing Ds inclusions. The CaO-Al2O3(-MgO)phase is derived from the decarburization channel. The SiO2 in the CaO-Al2O3-SiO2(-MgO)phase will be reduced by Al in the molten steel,ZrO2 only acts like a tracer.
作者
黄国俊
HUANG Guo-jun(Zenith Steel Group Co.,Ltd.,Changzhou 213011,Jiangsu,China)
出处
《连铸》
2020年第1期36-39,共4页
Continuous Casting
