Chernye Metally

The issue is opening with the article "Kinematics of rolled stock twisting in multi-roll passes of cone rolls" by R. F. Iskhakov, S. P. Burkin and A. V. Bryantsev. It considers the rolling method in passes of cone rolls for manufacture of simple sections using the following technological routes: round-square, square-round, square-square. The schemes of forming round and square roll passes are displayed. Simplified technique of calculation of specific and general twisting angles of rolled billet is suggested and obtained results are compared with experimental data.

I. O. Leushin and A. N. Grachev analyzed the main problems of casting and metallurgical production facilities in Nizhny Novgorod region and possible ways of their solution. Organizing, personnel and technical problems are classified and considered in details. Situation at production facilities is estimated, the principal causes of difficulties are revealed and possible ways of solving these problems and overcoming crisis appearances are suggested.

The results of XIX International scientific-technical conference "Tubes-2011" in Chelyabinsk are presented by V. Ya. Lifanov.

Among the foreign papers, we can attract attention of readers to the publication "Higher cost and resource efficiencies during stainless steelmaking in an EAF" by V. Yu. Risonarta, M. Kirschen, Th. Echterhof et al. In this research study, the empirical model ofchromium concentrations of tapped steel fromEAF was successfully developed. The empirical model outlined in this paper can be used for a future industrial application atLevel-2 and Level-3 of steel plants.

G. Arvedi in his paper "One year operation experience of Arvedi ESP endless rolling" observed new ESP (Endless Strip Production) line started operation with a fully endless process from the caster to the downcoiler for the production of quality carbon steel coils in gauges down to 0.8 mm. The ISP process has evolved and improved and after 18 years of development has realized the original idea of a completely endless process, ESP.

The business of industrial furnaces in a transition phase was the theme of the article by H. Stumpp. In the foreseeable future the market of furnaces for the steel will not reach its pre-crisis levels. Currently a strong growth of the capital expenditures of the automotive and machine building industry in parts of Europe as well as in China are observed.

The problem of emissions at metallurgical plants is analyzed by G. Moffat. The European steel industry reduced emissions per ton of steel by about 50 % between 1970 and 2005. Projects such as ULCOS (Ultra Low CO₂ Steelmaking), with several promising new technologies to further reduce emissions from steelmaking, will need heavy investment if they are to be successful. However, the absurdity of the EU’s policy is that the revenues from auctioning of CO₂ allowances and other eco-taxes do not flow back to serve the proclaimed goal of converting the economy as quickly and smoothly as possible into a low-carbon economy with competitive energy prices.

Economical section os presented by the publication "Steel can be relied on" by H.-J. Kerkhoff. He showed that the global steel market started on a strong note into the year.The steel industry has taken greatstrides to leave the crisis behind italready in 2010: crude steel productionincreased by 15 % and rose toa new high level of 1.412 billion t. However, this growth also varies considerably from regionto region within the European Union: while in Germany andPolandsteel demand will at leastbe able to reach the high values of2006 again in 2011/2012, in Spain itwill remain more than 40 % belowthe pre-crisis level.

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