Novokuznetsk, Russia
Novokuznetsk, Russia

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Protopopov E.V.,Siberian State Industrial University | Cherepanov A.N.,RAS Institute of Theoretical and Applied Mechanics | Chinokalov V.Y.,OAO EVRAZ ZSMK | Foigt D.V.,OAO EVRAZ ZSMK | Ganzer L.A.,Siberian State Industrial University
Steel in Translation | Year: 2013

The modification of metal by nanopowder is studied as a means of improving the quality of continuous-cast bar, complex components, and rebar. The introduction of TiCxNy-Fe nanopowder in the tundish of the continuous-casting machine reduces the liquation of the elements over the ingot cross section and the content of nonmetallic inclusions and also increases the structural and chemical uniformity. The use of nanopowder inoculators changes the structure of complex components (angle bar) and rebar, as well as the shape, size, and distribution of the nonmetallic inclusions, and also reduces the grain size and improves the mechanical properties. © 2013 Allerton Press, Inc.


Stankevich A.S.,OAO VUKhIN | Bazegskiy A.E.,OAO EVRAZ ZSMK
Coke and Chemistry | Year: 2013

A model is proposed for predicting the coke strength (M40 and M10) and its NSC parameters CSR and CRI on the basis of the chemical and petrographic parameters of the coal. The model takes account of the chemical composition of the ash, the duration of coking, and the coke-slaking technology. On the basis of this model, the technological value of the coal types used at OAO EVRAZ ZSMK is assessed, and the batch composition is optimized to produce coke of elevated quality. © 2013 Allerton Press, Inc.


Brinza V.V.,Moscow Institute of Steel And Alloys | Kuznetsov I.S.,OAO EVRAZ ZSMK | Yur'ev A.B.,OAO EVRAZ ZSMK
Steel in Translation | Year: 2014

Analysis of the scope for more efficient bar rolling is considered; a method of rapid analysis is outlined. By this means, the geometric parameters of the rolling pathways may be represented by alternative groups of repeatedly transformed dimensionless factors, and the results of repeated transformation may be statistically analyzed, to obtain an assessment of competitiveness. The multivariant representation of the geometric conditions yields significantly more information, including unexpected technological reserves of the process. Such analysis provides a set of recommendations regarding the local correction of the deformation region in one or more passes of the steel through the mill. As an example, this approach is employed in assessing the potential for increasing the product yield in rolling structural-steel bar for cold extrusion and upsetting on small-bar and wire mills at OAO EVRAZ ZSMK. The proposed method may be used to improve the production of a wide range of steel bar. © 2014, Allerton Press, Inc.


Salomykin V.V.,OAO EVRAZ ZSMK
Steel in Translation | Year: 2014

Billet of square or rectangular cross section is rolled in grooves on bar mills. The degree of reduction and the shape of the grooves determine the stress state of the metal in the deformation region and the energy consumption in rolling. The tensile stress at the bar surface depends on the longitudinal and transverse deformation. Under the action of the tensile stress, the integrity of the metal surface may be disrupted. For each steel, there is a limiting strain beyond which the bar surface disintegrates. The ratio of the current strain to its limiting value determines the degree to which the metal’s reserve of plasticity has been depleted; that, in turn, characterizes the probability of defect formation at the metal surface. The optimal groove configuration may be selected by simulation of the rolling conditions and assessment of the metal’s plasticity and the energy consumption. © 2014, Allerton Press, Inc.


Osetkovskii V.L.,OAO EVRAZ ZSMK | Naimark M.M.,OAO EVRAZ ZSMK | Lupenko V.G.,OAO EVRAZ ZSMK | Bazegskiy A.E.,OAO EVRAZ ZSMK | Sokolova T.I.,OAO EVRAZ ZSMK
Coke and Chemistry | Year: 2013

The coking of batch with different proportions of Elegest coal from the Ulug-Khemsk Basin is investigated in laboratory and production conditions. The mechanical strength of the coke is improved when such coal is used in the batch. At the same time, CSR falls, while CRI rises. © 2013 Allerton Press, Inc.


Karakash K.P.,OAO EVRAZ ZSMK | Golubtsov S.N.,OAO EVRAZ ZSMK
Coke and Chemistry | Year: 2013

It is of great importance today to reduce the environmental impact of coke production. To that end, dust-free coke discharge has been adopted at OAO EVRAZ ZSMK. © 2013 Allerton Press, Inc.


Golubtsov S.N.,OAO EVRAZ ZSMK | Kondrat'iev A.F.,OAO EVRAZ ZSMK
Coke and Chemistry | Year: 2013

The defects of the refractory lining at the coke batteries of Evraz Koks Siberia are considered, along with appropriate repair methods. Repair by ceramic welding is effective, but the assistance of Fosbel specialists is required. © 2013 Allerton Press, Inc.


Oshchepkov K.V.,OAO EVRAZ ZSMK
Coke and Chemistry | Year: 2013

Experience in upgrading the equipment for raw-benzene rectification at Evraz Koks Siberia is considered. © 2013 Allerton Press, Inc.


Peretyat'ko V.N.,Siberian State Industrial University | Smetanin S.V.,OAO EVRAZ ZSMK | Filippova M.V.,Siberian State Industrial University
Steel in Translation | Year: 2015

Despite the very diverse types of rails in industrial use, practically the same groove configurations may be used in rolling. However, the system used for streetcar girder rail is somewhat different. Computer simulation and industrial experiments permit the investigation of the axial-porosity distribution and assessment of the deformed state of the rolled metal in roughing and finishing. On that basis, a new rolling technology for streetcar girder rail has been developed. In the industrial research, the axial-porosity distribution in rolling with box grooves of the BD-1 roughing cell and slotted grooves in the BD-2 cell is investigated. The macrostructure is investigated on templates taken from the continuous-cast billet after the second, seventh, and ninth passes in the BD-1 and BD-2 cells. The results of computer simulation and the industrial trials are in good agreement. © 2015, Allerton Press, Inc.


Peretyat'ko V.N.,Siberian State Industrial University | Smetanin S.V.,OAO EVRAZ ZSMK
Steel in Translation | Year: 2015

Energy-efficient rolling in four-roller grooves is considered. The distribution of the effective stress and strain is established. The metal’s margin of plasticity is determined. The distribution of the rolling forces due to the vertical rollers is plotted. The applicability of mathematical simulation in industrial conditions is assessed. © 2015, Allerton Press, Inc.

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