Method for controlling excessive aluminum content in heavy rail steel with operation speed of 350 kilometer/hour and over

The invention relates to a method for controlling the excessive aluminum content in heavy rail steel with production speed of 350 kilometer and over, which belongs to the steel-making field of metallurgy industrial production. According to the invention, the alkalinity of LF refining furnace slag is...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO DIANQING, LI FENG, LIU PING, ZHI JIANGUO, ZHANG XIAOGUANG, JING YINONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	The invention relates to a method for controlling the excessive aluminum content in heavy rail steel with production speed of 350 kilometer and over, which belongs to the steel-making field of metallurgy industrial production. According to the invention, the alkalinity of LF refining furnace slag is controlled below 2.0; the mass percentage content of the original auxiliary material aluminum added in a converter and a LF refining furnace is Al