Chernye Metally

The section "Development of metallurgy in Russia and CIS" is opened by publication "Study of the cast structure of industrial slab of ferrite-pearlite steel" by A. A. Kazakov, O. V. Pakhomova, E. I. Kazakova. Dendritic structure of industrial slab of ferrite-pearlite steel has been investigated by methods of metallographic analysis and X-ray spectrometry analysis. Some regularities of elements correspondence of dendritic and cast grain structure were established.

Another article in this section is presented by O. B. Kalugina and D. I. Kinzin from Magnitogorsk State Technical University. The authors compared calculated values of elongation coefficient with its experimental data in rolling on flat rolls of 250, 370 and 450 rolling mills of Magnitogorsk Iron & Steel Works. The dependence between received calculation accuracy and deformation area shape has been revealed. In order to extend the applying area of form-shaping calculation methodology, the correcting coefficient has been suggested.

Investigations presented by E. A. Dudorov and Yu. V. Zhirkin have been devoted to increase of service life of the bearing units of work rolls at 2000 hot rolling mill and have been conducted also at Magnitogorsk Iron & Steel Works. It is shown that application of lubrication system has caused a decrease of the lubricant consumption in eight times and sizeable increase of average resource of rolling-element bearings of work rolls (by 2.1 times).

The problems of iron and steel making are researched in the three publications. The first one, "From ore to steel - ironmaking process" by P. Schmöle and H. B. Lüngen observes principally four routes for steelmaking: three are based on iron ore reduction via blast furnace, smelting reduction and direct reduction; one is based on melting steel scrap via the electric arc furnace. The second one, "State of the art and future trends of ingot casting and remelting technology" by J. Eisenkolb, R. Fandrich, R. Gerling, H.-P. Jung presents analysis of different technologies of ingot casting, sizes, moulds, refractories, casting fluxes, cooling, stripping, heat treatment, ingot quality, solidification structure, segregations and surface mistakes. The cost for the conversion of steel in secondary steelmaking including a ladle furnace and various vacuum treatment processes have been investigated in the third paper by W. Burgmann, J. Davené for a large heat range comparing two commonly used vacuum pump systems.

Five papers are published in the section "Steel as material".

The issue contains as usual the articles on power engineering and environment protection, economics and finances, education and training and metallurgical history.

You may find below more details about the issue or book printed or electronic version of the journal.