METODO MEJORADO PARA PRODUCIR ACERO EN UN RECIPIENTE DE METAL FUNDIDO SOPLADO POR LA PARTE SUPERIOR

A method for producing stainless steel in a top-blown molten metal vessel having a hot metal charge to form a bath. The method comprises top-blowing from a lance oxygen and/or a mixture of oxygen and inert gas onto or beneath the surface of the bath while introducing a low flow rate inert gas to the...

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Bibliographic Details
Main Authors HARRY LOGAN BISHOP, JR, JOSEPH WILLIAM TOMMANEY
Format Patent
LanguageSpanish
Published 30.06.1992
Edition5
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
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Summary:A method for producing stainless steel in a top-blown molten metal vessel having a hot metal charge to form a bath. The method comprises top-blowing from a lance oxygen and/or a mixture of oxygen and inert gas onto or beneath the surface of the bath while introducing a low flow rate inert gas to the bath from beneath the surface thereof during said top-blowing. The ratio of oxygen-to-inert gas is decreased progressively during top-blowing. The relative flow proportion of top-blown gases and bottom-blown gases remains substantially the same throughout the process.
Bibliography:Application Number: MX19850204360