Production of foundry materials from industrial wastes

Abstract

The developed results of production of foundry metal-containing materials from waste and semiprocessed products of related industries, the balling technology are presented. The technological characteristics of metals reduction, in particular, titanium from titanium-containing powdery materials are investigated. Titanium introduction into the melt with the direct alloying method provides saving of scarce and expensive ferroalloys. The modifying effect is achieved due to the chemical interaction of the additives with separate elements of the crystallizing substance. Unlike the familiar modification method of cast iron from ferrotitanium, when the modifying effect is due to deoxidizing action of titanium, in the course of direct alloying in the presence of such a strong reducing agent as atomic carbon, the carbide inclusions provide a decisive modifying effect.