R esearch on W hite B and of L arge S ection C ontinuous C asting R ound B loom by O riginal P osition A nalysis
CUI Xueying
TIAN Lei
ZHANG Xianghai
LIU Yuai
Abstract：The continuous casting round bloom shows no“white band”without final electromagnetic stirring (F-EMS) stirring. However, when the F-EMS is applied with current intensity 249.67 A and the frequency 6.6 Hz, the white band appears. Elements distribution is studied by the original position statistic distribution analysis (OPA). The results showed that the white band consists of a zone of negative segregation of elements carbon, silicon, manganese, phosphorus and sulfur. White band generation mechanism is as follows:F-EMS generates stirring of liquid steel and washes away the enriched solute elements liquid to result in the carbon negative segregation zone. In this zone ferrite grains of larger size formed with subsequent cooling, which is more resistant to corrosion than other zone in the acid leaching and displays in white.
Keywords：continuous casting round bloomwhite bandoriginal position analysis for metalF-EMS
Publication Date：2013-11-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 34-35,38 )