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| Analysis of continuous casting mold flux development situation for ultra low carbon steel combined with patent |
| WANG Fang，LI Jiao，JIN Gui-xiang，ZHANG Hua-shan |
| Material Department， Beijing Center of Patent Examination Cooperation Center of the Patent Office， State Intellectual Property Office， Beijing 100190， China |
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Abstract Ultra-low carbon steel has very low carbon content， so it is necessary to avoid carbon increasing of the liquid steel during the continuous casting process， and mold flux preparation should mainly consider the lubrication and consumption of the mold flux. Combined with the latest patent application for invention about the mold flux for continuous casting of ultra low carbon steel， the development situation of mold flux for continuous casting of ultra low carbon steel was analyzed. According to the research on the latest mold flux component， the mold flux of ultra low carbon steel mainly included carbon mold flux， no carbon color mold flux， boron content controlling mold flux， fluorine content controlling mold flux. The effects of these fluxes which could be achieved were discussed. Some basis for the future company in the selection and application of mold flux of ultra low carbon steel were provided.
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Received: 16 December 2014
Published: 13 April 2015
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2015, Vol. 34 
