Abstract: A shaped body for feeding cupola furnaces in the melting of cast iron composed of a silicon carrier as an alloying material, a slag-forming material and free carbon. The silicon carrier is in the form of SiC and/or FeSi. The slag-forming material is made of SiO.sub.2, Al.sub.2 O.sub.3 and CaO. In order to avoid the loss of silicon and have a silicon yield that may be safely controlled without the use of graphite when such bodies are used in unlined hot-blast cupola furnaces with steel scrap proportions in excess of 30% of the charge, the present invention uses free carbon in the form of calcined petroleum-, pitch-, or acicular coke or a combination thereof. Additionally, the ratio of SiO.sub.2 to free carbon is in the range of 2-4 and the basicity of the slag-forming material is in the range of 0.2-1.4. A method for using the shaped body in unlined hot-blast cupola furnaces to make cast iron is also disclosed.

Abstract: Alloy carrier for charging cupola furnaces, the carriers having the form of bodies molded with cement, the alloys being manganese as ferromanganese and silicon in the following composition8-40% Mn9-22% C2-9% Fe18-45% Si15-30% Portland Cement4-8% H.sub.2 O chemically bound2-7% residue components (all percentages by weight)wherein the manganese carrier is ferromanganese carbure and the silicon carrier is silicon carbide.