Theory and Technology of Metallurgical Production

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Savinov A.S., Tyuteryakov N.Sh., Zalilov R.V., Rud K.I. FORMATION OF THERMAL STRESSES IN THE FLAT WALL OF THE CASTING

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Abstract

The paper considers the issue of the formation of the stress-strain state (SSS) of the casting wall, leading to rejects due to cold and hot cracks. The formation of stress-strain state at a temperature difference over the section of the casting wall after its complete solidification is considered. Mathematical and physical modeling of thermally stressed state processes on materials with low thermal conductivity from silicate glass has been carried out. Such a selection of materials made it possible to obtain critical thermal stresses leading to destruction under the influence of thermal shock. In this work, the field of deformations arising at a temperature difference at the moment of destruction of the sample under study was determined. The theoretical calculation carried out in accordance with the physical experiment made it possible to quantitatively estimate the change in stresses over the section of the wall in time. The dynamics of changes in the principal stresses and their resultant ones, obtained according to the fourth theory of strength, are determined and graphically presented, which will make it possible to determine the conditions for discontinuity of the material in relation to the casting wall.

Keywords

Casting, flat wall, thermal stresses, thermal deformations, mathematical modeling.

Savinov Aleksandr S. – D.Sc. (Eng.), Associate Professor, Director of Metallurgy, Mechanical Engineering and Materials Processing Institute, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Tyuteryakov Nail Sh. – Candidate of Technical Sciences, Associate Professor of department of Design and operation of metallurgical machinery and equipment, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Zalilov Rustem V. –Senior Lecturer of department of Design and operation of metallurgical machinery and equipment, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Rud Ksenia I. – Student, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

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