The article presents the technology for manufacturing molding and core sands for producing synthetic cast iron and also describes the scheme of the molding-pouring line. The composition and properties of core mixtures are reflected. Shows the process of preparing the molding sand using a mixing runner.The relevance of the topic lies in the fact that the increase in cargo transportation in the world places increased demands on cast iron used to manufacture railway parts and sets new challenges in the field of metallurgy, while reliability and durability are the most important of them. The fulfillment of these requirements determines the competitiveness of products in the corresponding segment of the railway transport market.

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In an article about the importance of the choice of materilas, harmful impurities in synthetic cast iron, amd improving the strength characteristics of cast iron, which requires a new method of smelting synthetic cast iron using steel scrap as charge in the corrresponding crucible furnaces, the presences of a charge of metal charge, together with pig iron, the return of own production, carburetors, and ferroalloys for the purpose of carburizing and alloying to the required chemical composition.