DRAHTFOERMIGES MITTEL ZUM BEHANDELN VON METALLSCHMELZEN

1. A process of producing an agent in the form of wire for treating moltan matarial for making nodular iron, from a powder mixture which is sheath with farrous metal and contains at least one of tha metals (A) magnesium, calcium and rare earth elements, and at least one of tha metals (B) iron, nickel and manganese, characterized in that the metal powdar (A) is initially mixed with graphite powder or pearlita powder to form a reaction-retarding coating and is subsequently combined with component (B) and with a reaction-inhibiting component (C) of swellable silicates and/or coke and/or graphite to form the final mixture, wherein the metal powders (A, B) and component (C) hava particle sizes beteen 0.02 and 2.0 mm and tha powder mixture is composed of 30 to 80 wt. % (A), 10 to 60 wt. % (B) and 1 to 15 wt. % (C), the quantity of the coating being included in the quantity of component (C).