TREATMENT OF MOLTEN METAL

摘要

Improvements in or relating to The Treatment of Molten Metal The invention is directed to a method of and apparatus for, introducing into a bath of molten metal (eg a ferrous metal) contained in a vessel an alloying component (eg lead) or a reagent. The method includes the steps of connecting a plurality of plugs or nozzles located in the bottom and/or sides of the vessel to supplies of gas (eg argon) under pressure, and causing gas to be introduced simultaneously through the plugs or nozzles to produce individual gas flows which pass upwardly through the metal bath to create areas of turbulence on the bath surface. The areas of turbulence interact to produce on the bath surface a relatively quiescent region and it is into this relatively quiescent region that the required quantity of alloying component or reagent is added.