CONTROL OF DISSOLVED OXYGEN CONTENT IN SULPHURISED FREE MACHINING STEELS

The dissolved oxygen content in a bath of molten steel is controlled, in one embodiment, by diluting a slag layer atop the bath with an oxide such as lime (CaO), to reduce the percentage of MnO and FeO in the slag, and stirring the bath of molten steel. In another embodiment, a gaseous mixture of an...

Full description

Saved in:
Bibliographic Details
Main Authors HOWARD M. PIELET, LARRY A. FRANK, WILLIAM EDGAR, MILAN ALAVANJA
Format Patent
LanguageEnglish
Published 08.02.1990
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
Online AccessGet full text

Cover

More Information
Summary:The dissolved oxygen content in a bath of molten steel is controlled, in one embodiment, by diluting a slag layer atop the bath with an oxide such as lime (CaO), to reduce the percentage of MnO and FeO in the slag, and stirring the bath of molten steel. In another embodiment, a gaseous mixture of an inert gas and carbon monoxide in disequilibrium with the carbon and dissolved oxygen content is bubbled through the bath.
Bibliography:Application Number: AU19870082610