The paper presents the study results of deposited samples performed by arc submerged welding with flux-cored electrode of the Fe – C – Si – Mn – Cr – V – W system with a sodium fluorosilicate substitute under manganese-containing fluxes. The dust from aluminum electrostatic precipitators was used as a substitute for sodium fluorosilicate. Deposition was carried out on the plates made of 09G2S steel using various manganese-containing fluxes. The chemical compositions of the deposited layers were studied, the dependences of the influence of FeO and MnO on the extraction of basic elements were plotted. The structure and nonmetallic inclusions of the deposited samples were investigated and described by the methods of optical microscopy. The hardness and wear resistance of the obtained deposited surfaces were studied.

The possibility of using silicomanganese slag as a welding flux is considered. The influence of welding modes on the hydrogen content in the weld metal is investigated. The experimental welded samples meet the requirements for the hydrogen content.

To strengthen the parts of machines of the mining and metallurgical complex operating under abrasive wear conditions, chromium-tungsten heat-resistant steels of the R18, R6M5, R9, P2M8, 3X2V8, 3X2V4F, Kh10V14, 25Kh5FMS types, etc. are widely used as surfacing materials. Currently, it is economically and technically feasible protect the surfaces of parts of critical machines and mechanisms and use hardening coatings. The most promising method among others is the surfacing of coatings. This article shows that in the deposited metal of the type of economically alloyed P2M9 alloy, the effect of kinetic plasticity is observed during martensitic transformation. The concept of "economical alloying" of alloys is based on the choice of such alloying elements that would have a relatively low cost and / or would be included in the most affordable master alloys. Fulfillment of these conditions allows to reduce the cost of the production process and, accordingly, to reduce the cost of semi-finished products and finished products without significant loss in mechanical and operational properties. When blending such alloys, available "natural alloys" are often used, such as ferrotitanium and ferrovanadium. The advantages of economically alloyed alloys should also include ample opportunities for the use of scrap and production waste in smelting. Alloys can also be alloyed with microadditives of rare earth materials. However, the main disadvantages of this group of alloys are the insufficient level and instability of properties, as a result of which they are currently recommended for use mainly in terrestrial objects: medical implants, car parts and various decorative items. The effect of kinetic plasticity during martensitic transformation plays a decisive role in stress relaxation. The influence of the effect of kinetic plasticity on the nature of the formation of temporary and residual stresses during cooling of specimens of deposited metal of the P2M9 alloy and steel 12Kh17 on a thermal microscopy unit IMASH – 20–75 has been investigated. The manifestation of the effect of kinetic plasticity was assessed by the decrease in temporary stresses during the cooling of rigidly fixed samples in the temperature range of martensitic transformation. It is shown that the effect of kinetic plasticity can be used to regulate the stress state and prevent the formation of cold cracks in parts of mining and metallurgical equipment deposited with heat-resistant steels of high hardness.

The paper considers the main stages of development of technical devices and mechanisms used in the metallurgical industry. The work provides several examples of articulated link mechanisms operating at high temperatures and loads, used in the smelting and processing of metals.

The paper considers the main stages of development of technical devices and mechanisms used in the metallurgical industry. The work provides several examples of articulated link mechanisms operating at high temperatures and loads, used in the smelting and processing of metals.

The paper considers the main stages of development of technical devices and mechanisms used in the metallurgical industry. The work provides several examples of articulated link mechanisms operating at high temperatures and loads, used in the smelting and processing of metals.

The paper considers the main stages of development of technical devices and mechanisms used in the metallurgical industry. The work provides several examples of articulated link mechanisms operating at high temperatures and loads, used in the smelting and processing of metals.

The creation of mechanisms free from redundant links in them is one of the most urgent tasks of modern engineering. Planar articulated mechanisms are most widely used in the practice of mechanical engineering. In his work “Mechanisms in modern technology” Academician I.I. Artobolevsky described more than two thousand mechanisms, at least 70% were planar ones with redundant links in their chains. The appearance of redundant links in the articulated mechanisms leads to a decrease in the efficiency, contributes to the wear of parts in their joints, and reduces the service life of machines. The main direction in mechanical engineering should be the direction of creating adaptive, self-aligning (not containing redundant links) machines. To date, the method for eliminating redundant links proposed by L.N. Reshetov has been thoroughly studied. However, this technique makes it possible to determine only the total number of classical kinematic pairs of the fifth, fourth and third classes to satisfy the condition of the absence of redundant links in the articulated mechanisms. In this paper, we consider the issue of using such kinematic pairs that can provide the required displacement (or rotation) in the desired direction only by a certain predetermined insignificant amount. Such pairs should be called kinematic pairs of a quasi-high class, that is, close in possible movements to classical pairs of high classes. This approach to solving the problem of eliminating redundant links in articulated link mechanisms, which are widely used in the metallurgical industry, will significantly improve the operation of the rolling and clamping mechanisms of the mold, the movement of tables of medium and large-section mills, flying shears, actuators of forging and stamping machines, etc. 

Planar articulated mechanisms are most widely used in modern industry, including metallurgy. Up to now, the concept of redundancy of links itself has not been formulated clearly and is often incorrect. The research has been carried out in the scientific school of Siberian State Industrial University: the redundant links in the mechanical systems arise in kinematic pairs as a result of the inevitable forced assembly of the system. The number of links, the number and classes of the used kinematic pairs of this system do not correspond to the self-aligning system described by the A.P. Malyshev. It is shown that by ensuring the movement of the links in parallel planes or with a minimum deviation from parallelism, it is possible to reduce significantly the forces arising in the kinematic pairs. In the metallurgical industry, such mechanisms operate under conditions of high temperatures and loads, which often lead to an increase in the deformation of parts, and often to jamming at their joints. The creation of mechanisms capable of adapting to changing loads will solve the problem of not only increasing the efficiency of the mechanism, but also improving the entire technological cycle performed.

The investigation of temperature dependences on the specific heat capacity, the heat transfer coefficient in the “cooling” mode and the change in thermodynamic functions in the range of 300 – 450 K for aluminum grade A7 (99.7 % Al) doped with tin was carried out. It was established that the heat capacity, enthalpy and entropy of alloys increase with the increase in temperature, and decrease with the rise in concentration of the alloying component. The heat transfer coefficient of the alloys increases with the increase in temperature and tin content in aluminum. The Gibbs energy decreases with the increase in the temperature, and increases with the rise in the content of the alloying component.

The investigation of temperature dependences on the specific heat capacity, the heat transfer coefficient in the “cooling” mode and the change in thermodynamic functions in the range of 300 – 450 K for aluminum grade A7 (99.7 % Al) doped with tin was carried out. It was established that the heat capacity, enthalpy and entropy of alloys increase with the increase in temperature, and decrease with the rise in concentration of the alloying component. The heat transfer coefficient of the alloys increases with the increase in temperature and tin content in aluminum. The Gibbs energy decreases with the increase in the temperature, and increases with the rise in the content of the alloying component.

The paper focuses on the pneumatic structures used for designing modern architectural structures, both temporary and stationary, that create a new artificial habitat based on natural forms.

The analysis of foreign concepts of professional self-determination, including the concept of professional tests of S. Fukuyama, the concept of professional maturity of D. Super, the concept of personality self-actualization of A. Maslow is presented. The narrow context of the consideration of modern foreign concepts of professional self-determination is associated with their popularization in connection with the need to develop new ways of understanding and constructing psychological and educational technologies. Such technologies make it possible to expand the boundaries of professional orientation, as one of the stages of professional self-determination from the point of view of professional and personal transformation, the subject of his transition from sociality to professionalism at a young age and back to sociality upon completion of his professional path with further professionalization of the individual. The same plurality of professional choices as a continuous process of predicting the social and professional transformation of a person during his career path as well as a person’s desire for self-improvement, self-realization in a meaningful activity for him.

The article presents the results of a historical study of the biography of a major scientist-metallurgist, public figure of the city of Novokuznetsk and Kuzbass, Doctor of Technical Sciences, Professor Nikolai Vasilyevich Tolstoguzov.

On February 14, 2021, at the age of 87, Valentin Pavlovich Tsymbal, professor-consultant of the Department of Applied Information Technologies and Programming, Doctor of Technical Sciences, professor, full member of the International Academy of Higher Education Sciences, Honored Scientist of the Russian Federation, Honorary Professor of Kuzbass, passed away.