FLUX-CORED WIRE INCLUDING MOLYBDENUM TRIOXIDE

摘要

The invention relates to a flux-cored wire for charging a metallic bath into a state of fusion, comprising a metal sheath and powder filling and characterized in that the filling is a mixture of powders of molybdenum trioxide and moreover at least one reducing component, the molybdenum trioxide being predominant, and in that the proportions and grades of the powder mixture are predetermined so as to obtain complete reduction of the molybdenum trioxide in the metal sheath when the temperature increases due to insertion of the flux-cored wire into the bath. The invention also relates to a method for producing molybdenum-rich steel by means of said flux-cored wire.