Study on Optimization and Physical Simulation of Slag Entrapment in Mold With Electromagnetic Stirring

• Published in: 钢铁研究学报：英文版 no. S2; pp. 933 - 936
• Main Author: CHENG Chang-gui CHEN Xiong QI Shi-bing JIN Yan LI Zheng-song WEI Fu-long
• Format: Journal Article
• Language: English
• Published: 2012
• Subjects: electromagnetic; entrapment; modeling; mold; optimization; physical; slag; stirring
• ISSN: 1006-706X; 2210-3988

The level of the slag entrapment in mold involves the submerged nozzle immersion depth,the electromagnetic stirring intensity and other factors;this article has studied the relations between the slag entrapment behavior and the above factors by using of the water model.The results show that the surface velocity in meniscus increases with the increasing of stirring intensity and the decreasing of submerged nozzle immersion depth.When the submerged nozzle immersion depth is shallower,and the stirring intensity is high,the interface turbulence of the molten steel and slag is more severe,slag entrapment may occur in the extreme state.In order to avoid the slag entrapment in the working condition,the submerged nozzle immersion depth should be increased from 85~90mm to 100mm,or the electric current of the electromagnetic stirring should be reduced from 320A to 295A.