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Foundry Production
ArticleName Optimization of chemical composition of cast iron molds. Part 3
DOI 10.17580/chm.2023.03.03
ArticleAuthor V. A. Gulevsky, S. N. Tsurikhin, N. Yu. Miroshkin, N. A. Kidalov

Volgograd Industrial College, Volgograd, Russia:

V. A. Gulevsky, Cand. Eng., Lecturer, e-mail:


Volgograd State Technical University, Volgograd, Russia:
S. N. Tsurikhin, Cand. Eng., Associate Prof., Dept. of Machinery and Technology of Foundry Production
N. Yu. Miroshkin, Head of Laboratory, Dept. of Machinery and Technology of Foundry Production
N. A. Kidalov, Dr. Eng., Prof., Head of the Dept. of Machinery and Technology of Foundry Production


The heavy mode of operation of the mills (high heating temperature, their installation on mobile and stationary ditches, intensive cargo flows, etc.) imposes strict requirements on the material from which it is made and the technology of its production. In the conditions of foundry production, there are various chemical compositions of molds, which is why their durability may change during operation. Increasing the durability of scissors has a positive effect on production efficiency. The chemical composition of cast iron can determine the durability of the molds. It is necessary to choose the optimal chemical composition of cast iron in the manufacture of molds to increase the filling. Obtaining a mold in the foundry and metallurgy with optimal properties is a complex multi–criteria task that is solved using the theory of quality. This will significantly reduce the duration of the experiment to optimize the chemical composition of cast iron, when modifying it or changing the design of the samples. To optimize the chemical composition of the molds and increase their durability, mathematical modeling was applied, which shows the optimal chemical composition with their maximum durability. It has been experimentally established that the durability of scissors depends on the carbon content, to a lesser extent on the chromium and phosphorus content. Practically, the resistance of the eyelashes is less affected by the boundaries of changes in the content of manganese and sulfur. It is possible to obtain the necessary physical, mechanical and technological properties and improve the durability of the molds by reducing the amount of sulfur and phosphorus in the composition of the initial cast iron or by introducing new technological additives - modifiers, but at the same time the properties of the cast iron of the molds change significantly. 

keywords Cast iron, chemical composition, mould resistance, multi-criteria optimization, cupola smelters, foundry production, physical and mechanical properties, averaging functions, technological properties, limitations of the values of properties

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