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Pak Yu.A.,Bardin Central Research Institute for The Iron And Steel Industry | Shakhpazov E.Kh.,Bardin Central Research Institute for The Iron And Steel Industry | Filippov G.A.,Bardin Central Research Institute for The Iron And Steel Industry | Levada A.G.,Chelyabinsk Metallurgical Combine ChMK | Vaganov E.Yu.,Chelyabinsk Metallurgical Combine ChMK
Metallurgist | Year: 2011

This article examines the effect of additional blowing on performance indices and production costs for the production of steel in the converter shop at the Chelyabinsk Metallurgical Combine. It is shown that deviations from prescribed steelmaking practices in the shop, the use of pig iron with an unstable chemical composition and temperature, the lack of information on the pig iron for use by the shop supervisor before the beginning of heats, the cold-charging of scrap with a low bulk density, the use of poor-quality lime, and other problems make it impossible to conduct the blow with the optimum blowing, temperature, and slag regimes. This makes it necessary to take corrective actions: heats are subjected to additional blowings to attain the required temperature and necessary contents of C, S, and P. More than 90% of the heats at the combine require additional blowing "for temperature" and as much as 18% need additional blowing "for phosphorus and sulfur." It was established that the unit consumption of metallic charge materials and steel production costs are respectively 19.60 kg/ton and 249.39 rubles/ton higher for heats which receive additional blowing. © 2011 Springer Science+Business Media, Inc. Source


Tokovoi O.K.,South Ural State University | Khyakkinen V.I.,Chelyabinsk Metallurgical Combine ChMK | Zorin A.I.,Chelyabinsk Metallurgical Combine ChMK | Obrezkov V.V.,Ekos Company
Metallurgist | Year: 2015

A method is developed for manufacturing briquettes based on fine ferroalloy screenings providing sufficient mechanical strength and suitability for transportation. A batch of briquettes is manufactured from ferroalloy screenings for steel deoxidation. Ferroalloy briquette composition is studied in a scanning electron microscope. It is shown that a briquette consists of fine ferroalloy particles and pure silicon bonded by sodium silicate with various additives. Ferroalloy briquettes are tested for medium-carbon steel deoxidation in a steel-pouring ladle. Silicon assimilation from ferroalloy briquettes is 65% on average. © 2015 Springer Science+Business Media New York. Source


Frolov Y.A.,Uralelektra Scientific and Production Enterprise | Ptichnikov A.G.,Chelyabinsk Metallurgical Combine ChMK | Barinov V.K.,Chelyabinsk Metallurgical Combine ChMK | Gorshkov N.N.,Chelyabinsk Metallurgical Combine ChMK
Metallurgist | Year: 2013

Statistical analysis is used to examine the effect of the main raw-material and process factors on coke rate and productivity for the blast furnaces at the Chelyabinsk Metallurgical Combine during the period from 2007 to July 2012. A method is developed for calculating and predicting coke rate and daily pig-iron output in the blast-furnace shop, and a combination of parameters is found to reduce coke rate and increase the productivity of the shop. The factors table which is used throughout the industry is refined for the conditions that exist in the blast-furnace shop at the ChMK. © 2013 Springer Science+Business Media New York. Source


Maslov V.A.,Chelyabinsk Metallurgical Combine ChMK | Tikhonova V.A.,Chelyabinsk Metallurgical Combine ChMK | Rafikova D.G.,Chelyabinsk Metallurgical Combine ChMK | Udilova E.N.,Chelyabinsk Metallurgical Combine ChMK
Metallurgist | Year: 2013

The central analytical laboratory at the ChMK has developed a method of measuring mass fractions of selenium based on atomic-emission and mass-spectrometric analyses. The method is very accurate in measuring low contents of selenium in heat-resistant nickel alloys. The procedure developed for mass-spectrometric analysis of mass fractions of selenium has halved the length of time needed to obtain the analytical results and made the measurement process less labor-intensive. © 2013 Springer Science+Business Media New York. Source


Gorshkov N.N.,Chelyabinsk Metallurgical Combine ChMK | Kazantsev E.A.,Chelyabinsk Metallurgical Combine ChMK | Myagchenkova N.P.,Chelyabinsk Metallurgical Combine ChMK | Tregubov O.V.,Chelyabinsk Metallurgical Combine ChMK | Skorik E.Y.,Chelyabinsk Metallurgical Combine ChMK
Metallurgist | Year: 2013

The sinter production facility at the Chelyabinsk Metallurgical Combine has gone through several stages of development, from a waste-recycling plant to a modern complex that makes high-quality sinter. A program for making the sintering operation more efficient has been developed and is currently being implemented. The use of high-quality gas-cleaning equipment has reduced harmful atmospheric emissions per ton of product by a factor of 8-10. © 2013 Springer Science+Business Media New York. Source

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