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SMS Demag to Supply Heavy-Plate Mill for Vyksa Steel
12/27/2007 - SMS Demag will supply a 1.2-million tonne/year heavy plate mill for Vyksa Steel that will incorporate a newly developed to-part spray cooling system capable of direct quenching and accelerated cooling of tube-steel plates.
Vyksa Steel, Russia, has placed an order with SMS Demag for the supply of a heavy-plate mill.
The single-stand rolling mill will be capable of producing 1.2 million tonnes/year of finished plates in widths between 900 and 4,800 mm and thicknesses from 7 to 150 mm with a maximum weight of 40 tonnes.
SMS Demag’s supply scope comprises all mechanical equipment, including two slab furnaces, the mill stand, plate cooling system, hot plate leveler, cooling beds, shearing line, and the plate
finishing line with a 9/5 cold plate leveler. SMS Demag will also provide the complete electrical system, drive engineering, and all of the automation systems, including the production planning system (Level 3). Automation will be tested and optimized in advance using SMS Demag’s Plug & Work concept.
The new mill will feature a mill stand with a 120-mN rolling force and CVC plus® technology that will enable the production of plates of high-strength tube steels. Plates will be cooled with a newly developed two-part spray cooling system that includes an extremely efficient high-pressure station combined with special cooling headers, which helps the plate to achieve the very high cooling rates required for direct quenching (DQ) of the rolling heat. Pinch rolls will ensure good plate flatness, even at high cooling rates. The cooling system’s rear section, which operates at a lower pressure, is used for accelerated cooling (ACC) applications. A pre-leveler is installed in the cooling system’s entry section.
With startup of the new mill, Vyksa Steel will be capable of producing plates up to the strength class X 120, a category the company believes will be extremely important in the future for energy transport. The new mill will also enable Vyksa Steel to produce heavy plate for the mechanical engineering, shipbuilding and construction industries.
The mill is to be installed in Vyksa, an industrial town in the region of Nizhny Novgorod, about 250 km to the east of Moscow. It is scheduled to go into operation in mid-2010.
Vyksa Steel is part of the OMK group, Russia’s largest manufacturer of longitudinal SAW pipes.
SMS group is, under the holding SMS GmbH, a group of companies internationally active in plant construction and mechanical engineering for the steel and nonferrous metals industry. It consists of the two Business Areas SMS Demag and SMS Meer, which jointly form SMS metallurgy. In 2006, some 9000 employees worldwide generated a turnover of about EUR 2.8 billion.
