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Yavoiskii A.V.,Moscow Institute of Steel And Alloys | Khisamutdinov N.E.,Mechel | Belov V.V.,Mechel | Beketov I.V.,Mechel | And 2 more authors.
Steel in Translation | Year: 2011

The action of oxygen-blast pulsations, with complete combustion of the waste gases, on the processes in the steel-smelting bath is described. Scope for reducing the energy consumption in oxygen converters is identified, and special lances for that purpose are designed. It is possible, in principle, to regulate the converter by process by means of a pulsating oxygen blast that has a regular amplitude-frequency characteristic, with complete combustion of the waste gases. This approach may be incorporated in the design of multipurpose oxygen lances. © 2011 Allerton Press, Inc.


Kushnarev A.V.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Petrenko Y.P.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Kirichkov A.A.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Timofeev V.V.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Lavrova E.A.,OAO VNIIZhT
Steel in Translation | Year: 2011

The production of superstrong and durable heat-treated railroad wheels fromT steel is considered. Aspects of heat treatment are described, and the macrostructure, microstructure, and mechanical properties of the wheels are investigated. © 2011 Allerton Press, Inc.


Eremin A.Y.,Eastern Coal Chemistry Institute | Mishchikhin V.G.,Eastern Coal Chemistry Institute | Stakheev S.G.,Ural Federal University | Gilyazetdinov R.R.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Shvetsov V.I.,ZAO Koksokhimicheskaya Teplotekhstantsiya
Coke and Chemistry | Year: 2011

The utilization of heat from coke-battery flue gases and other potential secondary energy resources in drying coal batch prior to coking is considered. The main factors that influence the thermal potential of the flue gases as a drying agent are identified. The reduction in moisture content of the coal batch prior to coking thanks to the coke-battery flue gases is calculated for different battery operating conditions. Technological principles for combining the drying of coal batch with its preparation by selective crushing and pneumomechanical separation are considered. © 2011 Allerton Press, Inc.


Sobyanina O.N.,Ural Federal University | Filatov S.V.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Zagainov S.A.,Ural Federal University
Steel in Translation | Year: 2012

By combined study of heat-transfer and reduction processes, the factors that determine the blastfurnace reduction of titanium oxides are analyzed. © 2012 Allerton Press, Inc.


Stepanov Y.V.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Koshkarov D.A.,OAO Nizhnetagilskii Metallurgicheskii Kombinat
Coke and Chemistry | Year: 2010

Means of obtaining representative coke samples are considered. The influence of the size class on CRI and CSR is discussed, along with deficiencies of the NSC method. © 2010 Allerton Press, Inc.


Kushnarev A.V.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Bogatov A.A.,Ural State Technical University | Kirichkov A.A.,OAO Nizhnetagilskii Metallurgicheskii Kombinat | Petrenko Y.P.,OAO Nizhnetagilskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2010

A new technology is proposed for improving the railroad wheels produced at OAO Nizhnetagil'skii Metallurgicheskii Kombinat. Mathematical simulation of the stamping of continuous-cast billet provides information on the change in shape of the metal. The factors responsible for the poor quality of the rough wheels produced by the SMS EUMUCO method are identified. Two new stamping methods are developed, on the basis of three characteristic stages of metal flow. © 2010 Allerton Press, Inc.

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