Chernye Metally

The Russian section of this issue includes two articles. R. M. Golubchik, D. V. Merkulov, M. V. Chepurin et al. analyzed manufacture of large-size tubes at the works in Russia and Kazakhstan. Features of shell manufacture from continuously cast billets at 4 tube rolling mills are considered and piercing mills operating according to plant technical procedure until production of "mass" tube dimensions are compared.

Yu. A. Plesnetsov, O. I. Trishevskya nd S. Yu. Plesnetsov presented the paper "Usage of digital technologies for development of geometrical method of research of metal deformed state". The "Farseer" software complex for digital processing of graphic data, developed by Kharkov Polytechnic Institute, is presented. This complex allows to provide measurements ay scanned sample images with relative error less than 5.56 %, to process coordinates of points in gradients, to measure length and angle, to build gtaphs of functions based on table data.

A new sequence for coal injection vessels ia observed in the article by R. S. Nadur Motta and L. E. de Souza. A new process of handling the pulverized coal injection (PCI) into blast furnaces in an energy efficient way, aiming at decreasing the specific consumption of electricity and nitrogen,is described. The process improvement includedtwo new phases in the main coal vessels sequence.

K. Pilz, J. Heiss, A. Klein et al. devoted their work to process on-line measuring procedure of zinc content in converter dust using a process-oriented X-ray fluorescence spectrometer. This device was developed and manufactured by the companies Indutech instruments GmbHand IfG Institute for Scientific Instruments GmbH and installed at the voestalpine Stahl GmbH in Linz.

Chinese steel producer Maanshan Iron & Steel Company Ltd. (Masteel) operates a CSP plant made up of two individual thin slab casters and one seven-stand hot strip mill. With advanced liquid core reduction LCR plus, a dynamic thickness reduction of 1 to 35 mm selected by the operator or the production planning system becomes possible, as it is shown in the paper by Chen Yugen, Gao Hiachao, Ch. Geerkens et al.

Reducing energy demand and environmental benefits in secondary steel processing was investigated by S. Bruce, V. Greetham and G. Legge. With an increasing emphasis on reducingenergy use and cutting greenhouse gas emissions in line with the UN Framework on Climate Change and theKyoto Protocol, steel producers are interested to find ways to address these issues while improving production ratesand reducing costs. This article looks at the environmental and economic benefits, operational characteristics andrecent results produced by such steel degassing installations when used in the vacuum degassing (VD) and vacuumoxygen decarburisation (VOD) processes.

H. J. Kerkhoff presented the main landmarks for development of iron and steel industry in the new frame conditions and M. Mehta observed India's steel industry bounces back after the recent slump.

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