STUDY OF THE FORMATION OF THE STRUCTURE OF GRAY CAST IRON BY THE METHOD OF THERMOGRAPHIC ANALYSIS

Abstract

The work is devoted to the study of the effect of an exothermic carbon-containing additive of a facing layer of a sandy-clay molding mixture on the eutectic transformation of cast iron. For this, the method of thermographic analysis was used and metallographic analysis of the metal under study was carried out. It is shown that the results obtained by thermographic analysis have a correlation with the structure of cast iron. The introduction of a carbon-containing additive into the composition of the facing mixture led to the formation of a favorable structure of the prototype, characteristic of gray cast iron.