OAO Novolipetskii Metallurgicheskii Kombinat

Lipetsk, Russia

OAO Novolipetskii Metallurgicheskii Kombinat

Lipetsk, Russia
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Gubanov O.M.,OAO Novolipetskii Metallurgicheskii Kombinat | Cheglov A.E.,OAO Novolipetskii Metallurgicheskii Kombinat | Zaveryukha A.A.,Lipetsk State Technical University
Steel in Translation | Year: 2011

The structural and textural changes in isotropic electrical-engineering steel with change in the parameters of final recrystallizing annealing-specifically, the heating and cooling rates-are investigated. Analysis of the experimental data supports recommendations for optimization of the annealing parameters so as to obtain the best magnetic properties in the final steel. © 2011 Allerton Press, Inc.


Uvarkin A.A.,OAO Novolipetskii Metallurgicheskii Kombinat | Zaveryukha A.A.,Lipetsk State Technical University | Polyakov M.Y.,OAO Novolipetskii Metallurgicheskii Kombinat | Bakhtin S.V.,OAO Novolipetskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2010

The influence of small additions of antinomy (0.004-0.015% Sb) on the texture and magnetic properties of isotropic electrical-engineering steel with ~3% Si and no more than 0.006% C is studied. The texturing of the final steel is improved, with faster development of favorable orientations (hk0) and a smaller proportion of orientations {220}〈uvw〉. Steel modified with antimony is characterized by smaller magnetic losses (P1.5/50 ≤ 2.7 W/kg), without loss of magnetic induction: B2500 = 1.550-1.556 T. The asymmetry is acceptable: ΔP1.5/50 = 9-11%; ΔB2500 = 0.07-0.08 T. © 2010 Allerton Press, Inc.


Lukin Y.S.,OAO Novolipetskii Metallurgicheskii Kombinat | Bakhtin S.V.,OAO Novolipetskii Metallurgicheskii Kombinat | Lukin A.S.,OAO Novolipetskii Metallurgicheskii Kombinat | Zaveryukha A.A.,Lipetsk State Technical University
Steel in Translation | Year: 2012

The recovery and recrystallization kinetics of IF titanium steel is studied by investigating the microstructure, measuring the coercive force, and analyzing the residual stress. The results are familiar, except for the initial and final temperatures of these processes, which are specific to the steel employed. We assume that, on heating cold-rolled IF steel in the range 550-650°C, the dislocation density is unchanged on account of retardation by small TiC particles. Formulas are derived for the coercive force as a function of the grain size and may be used for monitoring purposes. © 2012 Allerton Press, Inc.


Malysheva T.Y.,Moscow Institute of Steel And Alloys | Pavlov R.M.,Moscow Institute of Steel And Alloys | Mansurova N.R.,OAO Novolipetskii Metallurgicheskii Kombinat | Detkova T.V.,Severstal
Steel in Translation | Year: 2015

The natural formation of iron ores has the determining influence on the sintering process and the strength of fluxed sinter. Homogeneous magnetite crystals are actively converted to melt, forming silicate binder for the ore grains in low-basicity sinter. With increase in basicity, the conversion from silicate binder to ferrite binder is determined by the quantity of iron in the melt and the high oxidative potential of the gas phase. The participation of heterogeneous magnetite in melting is limited. In sintering, low iron content in the melt expands the region where silicate binder is formed, shifting the onset of ferrite formation toward higher-basicity sinter. © 2015, Allerton Press, Inc.


Dreval' A.E.,Moscow State Technical University | Rubakhin A.I.,OAO Novolipetskii Metallurgicheskii Kombinat
Russian Engineering Research | Year: 2014

A hybrid tool for producing deep holes in the rollers of continuous-casting machines is proposed. The tool ensures high precision and machining quality and also reduces machining costs. © 2014 Allerton Press, Inc.


Filatov S.V.,OAO Novolipetskii Metallurgicheskii Kombinat | Rovnushkin V.A.,OAO Ural'skii Institute Metallov | Tikhonov D.N.,OAO Novolipetskii Metallurgicheskii Kombinat | Berestyukov E.V.,OAO Novolipetskii Metallurgicheskii Kombinat | Spirin S.A.,OAO Ural'skii Institute Metallov
Steel in Translation | Year: 2015

Coatings are formed in transport and casting ladles loaded from blast furnaces (volume 2000–4300 m3) with slag segregation. Research shows that, in transport ladles, depending on the carbon content and temperature of the hot metal, either a mineral–metal crust is formed or else a two-layer coating that also contains kish. There is no slag layer. The composition and apparent density of the hot coatings are determined, as well as the contamination of the hot metal in the casting ladles. © 2015, Allerton Press, Inc.


Rubakhin A.I.,OAO Novolipetskii Metallurgicheskii Kombinat
Russian Engineering Research | Year: 2010

The drilling of holes in continuous-casting rollers with cutting and surface plastic deformation by means of a combined tool is described. Such machining ensures high productivity and low cost, with specified quality. © 2010 Allerton Press, Inc.


Kurunov I.F.,OAO Novolipetskii Metallurgicheskii Kombinat | Lizogub P.V.,OAO Novolipetskii Metallurgicheskii Kombinat | Golubev O.V.,OAO Novolipetskii Metallurgicheskii Kombinat
Coke and Chemistry | Year: 2010

In China and Japan, measures have been developed to maintain constant coke quality and hence permit economical and stable blast-furnace operation with the injection of coal-dust fuel; and to reduce the cost of the coke, despite the continuing shortage of high-quality coking coal. These approaches include the construction of large-capacity coke batteries, with minimal environmental impact; ramming of the coal batch before it is loaded in the furnace; drying and heating of the batch; and improvements in dry slaking of the coke. © 2010 Allerton Press, Inc.

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