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Alexandrov N.N., Nuraliyev F.A., Zhukovsky S.S. Scientific-and- technical achievements and prospects
The main steps of development and achievements of the foundry department at OAO NPO TsNIITMASH are set forth. Many of the departments staff are known not only in the RF, but also far outside it. For many years of work and achievements, TsNIITMASHs founders were given State and Government awards. Theoretical and applied developments of the department that are in demand and topical today are pointed out.
Key words:Castings, department, cast iron, molding materials, furnace, molding sand, graphite, sand.

Gushchin N.S., Kulikov V.I., Smyk M.A. Effect of silicon on microstructure of chromium-nickel irons
Studied is the effect of silicon on Ar1 temperature, silicon and carbon contents in austenite, conditions of releasing structurally free carbon in the form of spheroidal graphite, and microstructure of high-alloy chromium-nickel iron.
Key words: chromium-nickel iron, spheroidal graphite, r1 temperature, microstructure, silicon, carbon, austenite, mechanical properties, wear-resistant castings, radiation intensity.

Andreyev V.V., Voronkova L.V., Nuraliyev F.A., Kachanov V.K. Investigation into cast iron structure degradation in ingot mold operation by the change of its acoustic characteristics
Presented are results of investigations into the degradation (change) of flake graphite iron structure in ingot mold operation by the method of ultrasound (US) checking. Shown is the possibility of positively predicting the probability of emergency failure of an ingot mold during its further use by the level of decrease in US velocity in the molds cast iron by 7 to 10% during service.
Key words:Flake graphite iron, ingot mold, steel, graphite, metallic base, perlite, ferrite, ultrasound check.

Takhirov A.A., Gushchin N.S. Effect of various factors on austenite stability duringcooling of chromium-nickel iron
Silicon and modifying influence melt on stability austenite is studied at cooling nickel-chromium cast iron with the various form of graphite, and also micro alloying on its mechanical and operational properties.
Key words:Nickel-chromium cast iron, flake graphite and nodular graphite, austenite, a magnetic susceptibility, modification, micro alloying, the modifying, alloying elements, wear parts, asphalt and concrete.

Petrov L.A., Kovalevich E.V., Guseynov B.G. Development and mastering of ferrosilidemelting technology and production of sacrificial anode castings
A technology of melting ferrosilide in an induction furnace of the type IST-0,16 has been developed. Corrosion resistance of grade ChS15 ferrosilide in accordance to GOST 7769-82, and ferrosilide additionally alloyed with chromium has been investigated. It is shown that ferrosilide alloyed with chromium has a 25% lower speed of anodic dissolution than ferrosilide without chromium addition. An industrial technology of making cast sacrificial anodes has been fine-tuned.
Key words:Ferrosilide anode, grounding electrode, electrochemical protection, corrosion activity, silicon iron, casting, chemical composition, melting, charge materials, mechanical properties.

Romashkin V.N., Nuraliyev F.A., Stepashkin Y.A., Koykov A.A. Study of crack resistanceof cold-hardening sands
A method for studying the fracture toughness of molding compounds. Exploring different mixtures of water glass, mixtures for foskon-process and furan-process resistance parameters are mixtures of cold-box processing. As the findings indicate the direction of future research in the context of determining the relationship of fracture toughness mixtures of cold-box processing with surface defects of castings.
Key words:Crack, metal penetration, moulding, mixtures, casting, heating temperature, the sample defects, surface.

Borsuk P.A. Structure peculiarities of molding sand
Proposed are models of molding sands based on their grain structure. The models differ by porous structure, depending on powder fraction content. By using these models, anti-penetration properties of molding sands can be predicted.
Key words:Molding sand, penetration, pore, structure, grain structure, powder.

Kaftannikov A.S., Nuraliyev F.A., Stepashkin Y.A. Study of cold-hardening water glass bonded sands with lower binder content
It is shown that the amounts of clay component and fine fraction in quartz sands have a crucial influence on the strength characteristics of cold-hardening water glass bonded sands hardened by esters. Use of sands with a low content of clay and <0.1 mm fraction allows to produce high-strength molding sands with a reduced binder level, and thereby to decrease the labor intensity of shakeout work by several times.
Key words:Sand, water glass, molding sand, properties, strength, clay, binder.

Mirzoyan G.S., Tsybrov S.V. Centrifugal casting of composite rolls from hard-to-deform alloys
Discussed are the technological aspects of making composite rolls. It is pointed out that the advantages of the centrifugal method of making such rolls, as compared to alternative ones, consist not only in the efficiency of making multilayer blanks, but also in the possibility to produce large-tonnage articles with an adjustable thickness ratio of different metal layers, including those from hard-to-deform alloys. In the historical context, discussed is the development of the manufacturing process at domestic metallurgical plants.
Key words:Roll, rolling, assortment, technology, working layer, core, centrifugal casting, rolling mill, high-strength iron.




Table of content

On the occasion of the 85th Anniversary of the Foundry processes Department at OAO NPO TsNIITMASH

Alexandrov N.N., Nuraliyev F.A., Zhukovsky S.S. Scientific-and- technical achievements and prospects

Gushchin N.S., Kulikov V.I., Smyk M.A. Effect of silicon on microstructure of chromium-nickel irons

Andreyev V.V., Voronkova L.V., Nuraliyev F.A., Kachanov V.K. Investigation into cast iron structure degradation in ingot mold operation by the change of its acoustic characteristics

Takhirov A.A., Gushchin N.S. Effect of various factors on austenite stability duringcooling of chromium-nickel iron

Petrov L.A., Kovalevich E.V., Guseynov B.G. Development and mastering of ferrosilidemelting technology and production of sacrificial anode castings

Romashkin V.N., Nuraliyev F.A., Stepashkin Y.A., Koykov A.A. Study of crack resistanceof cold-hardening sands

Borsuk P.A. Structure peculiarities of molding sand

Kaftannikov A.S., Nuraliyev F.A., Stepashkin Y.A. Study of cold-hardening water glass bonded sands with lower binder content

Mirzoyan G.S., Tsybrov S.V. Centrifugal casting of composite rolls from hard-to-deform alloys




December 2014         Feburary 2015

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, 2015
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