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Pereverzev A.V.,Zaporizhzhya Institute of Economics and Information Technologies | Lytvynenko T.M.,Zaporizhzhya State Engineering Academy
Technical Electrodynamics | Year: 2015

Adduced description and results of experimental research of high-voltage transducer. It is shown that the formation process of charge of the first capacitor storage energy with using IGBT devices leads to reduction of energy losses and increases the efficiency of the high-voltage converter. Done the comparison of experimental data with simulation results. Testing the experimental sample showed a significant efficiency of the developed high-voltage converter for neutralization of sulfur dioxide.


Nikolaev V.A.,Zaporizhzhya State Engineering Academy | Zhuchenko S.V.,Zaporizhzhya State Engineering Academy
Metallurgical and Mining Industry | Year: 2010

Reduction of uneven deterioration of roll bodies, broad-strip mill downtime and manufacture of precise transverse section of strip are caused in many respects by application of rational types of grooving of work and back-up rolls in four-high mill stand. Rational roll grooving needs defining the actual length of contact between work and back-up roll. The latter defines sizes of end slopes of back-up rolls and enables to raise accuracy of calculation of work roll natural deflection and values of roll crown out (crown in). The calculation model for determination of rational length of active part of back-up roll body length is suggested in the paper. © Metallurgical and Mining Industry, 2010.


Nikolaev V.A.,Zaporizhzhya State Engineering Academy | Matyushenko D.A.,Zaporizhzhya State Engineering Academy
Metallurgical and Mining Industry | Year: 2010

The methods to decrease longitudinal gage interference of strips under hot rolling are considered. Implementation of these methods does not require significant material expenses. © Metallurgical and Mining Industry.


Skachkov V..,Zaporizhzhya State Engineering Academy | Berezhnaya .R.,Zaporizhzhya State Engineering Academy
Materials Science | Year: 2015

We propose a model of low-temperature compactification of the porous structure of carbonized coal plastic in a flow slab reactor and develop a procedure for the determination of the distribution of pyrocarbon over the thickness of the wall of the compactified coal plastic. © 2015 Springer Science+Business Media New York


Skachkov V..,Zaporizhzhya State Engineering Academy | Berezhnaya O.R.,Zaporizhzhya State Engineering Academy
Materials Science | Year: 2015

We study the influence of elliptic fatigue cracks of the fracture toughness of high-strength steel and the influence of static and low-cycle loading on the process of crack growth. © 2015, Springer Science+Business Media New York.

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