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| Brief Analysis of Ladle Free-Opening Method and a New Proposed Method |
| LI De-jun,HE Ji-cheng,LIU Xing-an,OUYANG Ren-hua |
| Key Laboratory of National Education Ministry for Electromagnetic Processing of Materials, Northeastern University, Shenyang 110004, Liaoning, China |
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Abstract In the course of the continuous steel casting, ladle free-opening is one important link that joins production. While introducing ladle free-opening methods, the pouring methods that were seldom used or eliminated were analyzed; and ladle filler sand method widely used now was analyzed. Finally, based on the working mechanism of ladle filler sand, replacing ladle filler sand using the iron carbon alloy was proposed, and solidification shell was formed to block the molten steel in the ladle upper nozzle, then the induction coil that was installed around the ladle upper nozzle was used for induction until melting, thereby the ladle free-opening was realized.
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Received: 05 January 2012
Published: 24 July 2012
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2012, Vol. 31 
