METHOD FOR PRODUCING MOLTEN STEEL
PROBLEM TO BE SOLVED: To provide a method for producing molten steel, by which the use amount of a temperature increasing agent can be decreased to a small amount in blowing in a converter even when the molten steel having a low P concentration is produced.SOLUTION: In a process of delivering molten...
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| creator | NISHIGUCHI NORITAKA TAKESHITA HIROAKI OSHIMA KENJI TAKAHASHI DAISUKE |
| description | PROBLEM TO BE SOLVED: To provide a method for producing molten steel, by which the use amount of a temperature increasing agent can be decreased to a small amount in blowing in a converter even when the molten steel having a low P concentration is produced.SOLUTION: In a process of delivering molten pig iron tapped from a blast furnace into a charging ladle from a blast furnace ladle or a torpedo car, a dephosphorization treated molten pig iron obtained by subjecting the molten pig iron to dephosphorization treatment and normal pig iron not subjected to dephosphorization treatment are mixed to obtain mixed pig iron having an Si concentration of 0.10 mass% or more and 0.50 mass% or less and a P concentration of 0.030 mass% or more and 0.100 mass% or less. The molten steel is produced in a condition where a use amount of a temperature increasing agent is small, by charging the mixed pig iron into a converter and adding the temperature increasing agent to perform blowing. |
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The molten steel is produced in a condition where a use amount of a temperature increasing agent is small, by charging the mixed pig iron into a converter and adding the temperature increasing agent to perform blowing.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS |
| title | METHOD FOR PRODUCING MOLTEN STEEL |
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