Monastyrskiy A.V., Bubnov V.M., Kotenko S.P., Balakin V.V. Break of

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1.

Monastyrskiy A.V., Bubnov V.M., Kotenko S.P., Balakin V.V

. Break of freight wagon car‘s solebar. Analysis of manufacture technology, and ways of defects elimination.

The article provides a summary of the operation of side frame freight stock. Presents data statistics, describes the causes of frames break, provide a brief review of articles on the topic. The second part of the article deals with the results of joint studies on the technology side of the frame to PJSC «AzovElectroStal».

Key words: wagon casting, side frame, casting simulation, ProCAST.

2.

Fikret Koch . Achievements of EGES company in the field of design and manufacture of induction middle-frequency furnaces.

Up-to-date development of EGES company in the manufacture of induction middle-frequency furnaces are described in this article.

Key words: induction middle-frequency furnace.

3.

Degtyarenko G.I., Vorontsova T.V.

Rating of thermal wear of clay materials and estimation of molding mixture freshening.

Thermal wear rate is the impartial characteristic of bentonites and clays thermal resistance. It determines the part of clay materials loss after the molds pouring depending on thermal load on mixture, which is characterized by the metal/mixture ratio. The application of thermal wear rate essentially simplifies the control of molding mixture composition and regulation of its quality. The article shows the methodology of experimental estimation of the thermal wear rate value, which is highly accurate due to the application of temperature indicators together with molding mixture. Temperature indicators register the spread of temperature field up to 300 0 С inside the mold. Additives of electrocorundum and starch ware used as thermal indicators. The values of thermal wear rate for Khakasskiy bentonite and Druzhkovskaya clay are shown, and also the example of estimation of bentonite quantity, which should be added to mixture for the loss compensation, is given.

Key words: molding mixture, flask, thermal wear rate, thermal load on mixture, metal/mixture ratio, bentonite decomposition, molds pouring, thermal indicatorm molds heating temperature, estimation of freshening mode.

4.

Duyunova V.A., Uridiya Z.P.

Study of foundry magnesium alloys Mg-Zn-Zr inflammability.

The article gives the results of research of experimental foundry magnesium alloys inflammability, carried out by the specialists of FSUE “VIAM”. Technological parameters that influence the magnesium alloys oxidation rate, are shown.

Key words: foundry magnesium alloys, inflammability, magnesium oxidation.

5.

Kurbatkina E.I., Belov N.A., Aksenov A.A.

to alumomatrix composite materials.

Quantity analysis of Al-Si-C phase diagram in respect

The article provides the results of quantity analysis of Al–Si–C system phase composition in respect to alumomatrix composite materials, hardened by silicon carbide (SiC). The results of isothermal sections estimation are shown and also the consentration of silicium in matrix alloys, which exclude the formation of aluminum carbide (Al

4

C

3

), is proved. It is shown, that the experimental values of Al

4

C

3

phase quantity are much сlower than estimated values. It was caused by the formation of continuous ring of this phase on the

SiC particles.

Key words: alumomatrix composite material, Al-Si-C phase diagram, silumin, silicon carbide, aluminum carbide.

6.

Hosen Ri, Ri E.H., Mysik R.K., Sulitsin A.V., Brusnitsyn S.V., Romanov V.A

thermospeed treatment of copper melt on liquid state parameters.

. Effect of the

The aim of this article is study of copper melt thermospeed treatment effect on liquid state parameters.

Variation of copper specific resistance depending on temperature is studied. Effect of copper melt superheat temperature and speed of its cooling on degree of compaction and coefficient of thermal compression of liquid phase is defined. Influence of impurities content on copper crystallization parameters is examined.

Key words: copper, melt, thermospeed treatment, crystallization characteristics, degree of compaction, coefficient of thermal compression, undercooling.

7.

Zherebtsov D.A., Ilyin S.I., Goykhenberg Yu. N., Kulakov B.A., Pavlinich S.P., Karpinskiy

A.V..

Interaction between liquid intermetallic titan-aluminium alloy and corundum.

No distinct interaction between white corundum and intermetallic Ti-Al alloy was observed at temperatures up to 2050 °C. It permits to recommend corundum refractory materials for casting Ti-Al alloys.

Crystallization of the alloy on a water-cooled copper bottom when high cooling rates are achieved results in higher hardness and more complex dispersed microstructure than at lower crystallization rates. The constant Nb:Mo ratio of 5.5 in different structural constituents is preserved at high cooling rates.

Key words: intermetallic Ti-Al alloy, corundum refractory material, castings, microhardness, dispersed microstructure, scanning electron microscopy.

8.

Gerasimov V.V., Kolyadov E.V.

Technical characteristics and technological features of UVNK-9A and VIP-NK installations for the production of monocrystalline castings of heat-resistant alloys.

The article deals with the technical characteristics and technological features comparison of UVNK-9A and

VIP-NK installations for the production of monocrystalline castings of heat-resistant alloys.

Key words: directional crystallization installations, computer control system.

9.

Oborin L.A., Cherepanov A.I.

Effect of alloying elements on mechanical properties of steel

04H13N5M5K9L (VNL-6).

Past the analysis of mechanical properties, microstructure and chemical composition of 80 heats of steel

VNL-6. Problems were solved in the framework of the linear relationship between the studied traits, the theoretical regression line was represented mathematically by the correlation equation of first order. Result of the equation, subjected to statistical analysis using the criteria of the theory of probability and mathematical statistics, allowed to deduce the correlation coefficients. The relationship between mechanical properties and all the chemical elements estimated multiple linear correlation. Analysis of statistical data allowed us to determine the equivalence of the influence of the chemical elements on the mechanical properties and to establish the optimal chemical composition of steel VNL-6.

Key words: operational reliability, strength, ductility, statistical analysis, the correlation of the field, multifactor linear regression equation, the degree of influence.

Monastyrskiy A.V., Bubnov V.M., Kotenko S.P., Balakin V.V. Break of freight wagon car‘s solebar.

Analysis of manufacture technology, and ways of defects elimination.

The article provides a summary of the operation of side frame freight stock. Presents data statistics, describes the causes of frames break, provide a brief review of articles on the topic. The second part of the article deals with the results of joint studies on the technology side of the frame to PJSC «AzovElectroStal».

Key words: wagon casting, side frame, casting simulation, ProCAST.

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