Planning and Design Institute of Metallurgical Machinery VNIIMETMASh

Moscow, Russia

Planning and Design Institute of Metallurgical Machinery VNIIMETMASh

Moscow, Russia
SEARCH FILTERS
Time filter
Source Type

Molyarov V.G.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Avdeenko A.M.,Academy of State Fire Service | Kalashnikova A.V.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Molyarov A.V.,National University of Science and Technology "MISIS" | Kuz'ko E.I.,National University of Science and Technology "MISIS"
Metallurgist | Year: 2017

Features are revealed for the inheritance of bimetallic rolled product of dendrite inhomogeneity of the cast structure of two-phase austenite-ferrite steel applied in the form of a cladding layer on a base of low-alloy steel. It is shown that the banded and fiber structure of a cladding layer on rolled product is the result of retention of chemical liquation and rebuilding of the surfacing dendritic structure. Results are given for quantitative analysis of specimen fractures tested in static tension in the form of two parameters, i.e., work for plastic deformation localization and specific area of a fracture surface characterizing the energy content of failure. Areas of the surface of all fractures having a complex configuration are determined with considerable accuracy due to the original procedure of digital measurement of a three-dimensional failure surface from results of photogrammetric exposure on a meso-macro-scale followed by recreation of a complete three-dimensional model of the relief. Quantitative properties of fractures are supplemented by the strength and ductility indices of bimetallic rolled product, which makes it possible to substantiate the optimum version of final heat treatment and material use taking account of carbon content in the main layer. © 2017 Springer Science+Business Media New York


Krasnyanskii M.V.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Kats Y.L.,National University of Science and Technology "MISIS" | Tyuftyaev A.S.,RAS Joint Institute for High Temperatures | Gadzhiev M.K.,RAS Joint Institute for High Temperatures | And 2 more authors.
Metallurgist | Year: 2017

Plasma-arc heating of periclase-carbonaceous refractory was experimentally tested. A high heating rate of 600°C/h was achieved. The experimental results were used to correct the thermal characteristics of raw refractory and to determine the energy characteristics of the arc discharge. Raw periclase-carbonaceous refractory has high heat conductivity (25 W/(m·K)) and low emissivity (0.3). The radiated power (130 kW) of the discharge is calculated from spectral measurements of an argon plasma arc with a current of 1000 A and an arc voltage of 150 V. The obtained data are used to specify the parameters of the CFD-model of plasma-arc heating of periclase-carbonaceous refractory. © 2017 Springer Science+Business Media New York


Zhirkin Y.V.,Magnitogorsk State Technical University | Puzik E.A.,Magnitogorsk State Technical University | Filatov A.A.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Sultanov N.L.,Magnitogorsk Metallurgical Combine MMK
Metallurgist | Year: 2017

The bearing assemblies of the work rolls of high-speed cold-rolling mills are the most heavily loaded components of the working stands. The short service life of the rolling bearings is due to overheating. It is shown that it is possible to eliminate this disadvantage of rolling bearings either by providing, based on the developed thermal model, the appropriate oil-feed cycle in the oil–air lubrication system or by selecting, using the proposed method, the viscosity grade of the mineral oil that minimizes the temperature of the lubricating film in the contact zone. © 2017 Springer Science+Business Media New York


Sivak B.A.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh
Metallurgist | Year: 2014

A mathematical model is formulated for deformation of a thin slab shell in a mold with a nonlinear internal profile taking account of metal volumetric stressed state and friction between a slab shell and mold surface. Values of axial stresses within a shell and the amount of change in slab broad face size are analyzed. © 2014, Springer Science+Business Media New York.


Luk'yanov A.V.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Protasov A.V.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Sivak B.A.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Shchegolev A.P.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh
Metallurgist | Year: 2016

Results are reported from a study of BOF steelmaking at the Cherepovets Metallurgical Combine (CherMK), and the main measures that can make the BOF shop more efficient are described. The measures include improving the logistics of transport operations, the installation of new production equipment, or upgrade of the existing equipment. It is shown that the technical-economic indices of the shop can be improved in a short period of time at minimal cost by adopting a comprehensive approach to modernization of the present facilities. © 2016 Springer Science+Business Media New York


Belkovskii A.G.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Filippov S.F.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Kats Y.L.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh
Metallurgist | Year: 2013

Results are presented from a study performed to determine how the quantity of carbon-bearing materials charged into an electric-arc steelmaking furnace to carbonize the metal affects the main indices of the heat - electric-power consumption, the duration of the heat, the time of furnace operation under current, and hourly productivity. The use of a mathematical model developed previously showed that there is a quantity of carbon-bearing materials that is optimum from the standpoint of minimizing electric-power consumption and maximizing the hourly productivity of the furnace. The existence of this optimum quantity has been substantiated theoretically, but it has not yet been confirmed by statistical studies due to the large number of other factors that have a significant effect on the above-named indices. © 2013 Springer Science+Business Media New York.


Krasnyanskii M.V.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Kats Y.L.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh
Metallurgist | Year: 2014

Experimental values have been determined for the integral emissivity (blackness) of periclase-carbon refractories used in the working layer of the lining of steel-pouring ladles. The values were found for the range 500–900°C. It was established that the emissivity of periclase-carbon refractories is considerably higher than that of periclase refractories. Use of the data which were obtained is making it possible to more accurately measure the temperature of such linings by the pyrometric method. © 2014, Springer Science+Business Media New York.


Sivak B.A.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh
Metallurgist | Year: 2012

This article examines the main types of surface defects on slabs and their causes. A general explanation is given for the nucleation and growth of surface cracks. An analysis is made of the possibility of applying criteria from the fracture mechanics of deformable solids to the conditions that exist during the continuous casting of steel slabs. © 2012 Springer Science+Business Media, Inc.


Sivak B.A.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh
Metallurgist | Year: 2012

A method is proposed for constructing the profile of the expanded upper working cavity of the mold to allow it to accommodate the pouring nozzle in the casting of thin slabs. A relation is presented to determine the angle of inclination of the narrow faces of the mold. © 2012 Springer Science+Business Media, Inc.


Katsiban V.A.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Filatov A.A.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh | Smolyakov A.S.,Planning and Design Institute of Metallurgical Machinery VNIIMETMASh
Metallurgist | Year: 2014

The casting of steel on a continuous caster is the culmination of interactions that take place between the pouring equipment, mold, secondary cooling zone, and ingot withdrawal mechanism in a single process. Studies of the continuous casting of steel have shown that the stability of the continuous casting operation should be evaluated based on the criterion of lead time. Gaps in the components of the caster have a direct effect on the velocities of the mold and the ingot, which in turn determine the lead time. Hundreds of continuous-caster strands equipped with mold oscillation mechanisms of the hinge-lever type and hinged multi-component dummy bars have been in use in many countries up to the present. Thus, the effect of gaps in the caster components that determine the quality of the cast semifinished product is an important problem and needs to be resolved. © 2014 Springer Science+Business Media New York.

Loading Planning and Design Institute of Metallurgical Machinery VNIIMETMASh collaborators
Loading Planning and Design Institute of Metallurgical Machinery VNIIMETMASh collaborators