A New Steel Teeming Technology by Using Electromagnetic Induction Heating System in Ladle

In order to overcome the pollution of the tratitional nozzle sand into the molten steel in tundish,a new method is proposed in this paper.In this method,the nozzle sand is substituted with iron-carbon alloy particles which have the same or similar compositions as the liquid steel.During casting proc...

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Bibliographic Details
Published in:钢铁研究学报：英文版 2012 (S2), p.766-770
Main Author: LI De-jun WANG Qiang LIU Xing-an Gao Ao WANG Xue-bin DONG Jie KATSUKIYO Marukawa HE Ji-cheng
Format: Article
Language:English
Subjects:
automatic
casting
clean
continuous
electromagnetic
heating
induction
metallury
ratio
steel
Online Access:Get full text
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Summary:In order to overcome the pollution of the tratitional nozzle sand into the molten steel in tundish,a new method is proposed in this paper.In this method,the nozzle sand is substituted with iron-carbon alloy particles which have the same or similar compositions as the liquid steel.During casting processes,iron-carbon alloy forms solidification shell and the sintered layer in the upper nozzle to block the molten steel.When the slide gate is opened,the eletromagnetic induction heating is used to melt them so as to achieve 100%smoothly steel teeming.The electromagnetic induction heating effects were analyzed theoretically in the new slide gate system.Then the new method has been experimentally tested by using self-designed experimental device.The results show that the electromagnetic induction heating can complete the steel teeming within the required time.Furthermore,this steel-teeming technology can further improve the cleanliness of liquid steel.
ISSN:1006-706X
2210-3988