A steel melting and secondary refining method comprising the steps of melting steel manufacture raw materials while the molten steel is subjected to oxidation and decarburization so that the oxidation and decarburization are substantially completed before melt-down; after melt-down, heating the molten steel to a temperature above a liquidus line temperature and below 50℃. in temperature increment from the liquidus line temperature, and thereafter tapping the molten steel into a primary ladle; teeming the molten steel from the primary ladle into a secondary refining furnace; allowing the molten steel to be effluent into a secondary ladle at a lower portion of the secondary refining furnace while the temperature of the molten steel is raised; and continuously performing gas bubbling in the secondary ladle in a vacuum under existence of slag simultaneously with the effluence of the molten steel into the secondary ladle.

REFINING FURNACE

WHAT ARE THE FUNCTIONS OF VARIOUS SECONDARY REFINING FURNACES?

Stainless steel refining: AOD and VOD furnace

secondary refining process THE PIVOTAL ROLE OF SECONDARY REFINING FURNACES-SHAPING MODERN STEEL EXCELLENCE

cupellation furnace secondary metallurgy steelmaking Refining Quality: The

HOW DOES A SECONDARY REFINING FURNACE ENHANCE THE PURITY OF STEEL?

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Modern secondary refining furnaces also take environmental factors into consideration. They utilize technologies such as slag recycling and waste heat utilization to reduce waste generation, energy consumption, and emissions. These measures contribute to achieving sustainable steel production and reducing the environmental impact.

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