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SMS Demag to Supply Continuous Tandem Mill for Posco

07/16/2007 - Posco awards contract to SMS Demag for the supply of the world's first continuous tandem mill with 18-high cold rolling stands for the economical production of high-quality special steel strip.

Posco, Korea, has awarded a contract to SMS Demag for the supply of the world's first continuous tandem mill with 18-high cold rolling stands for the economical production of high-quality special steel strip.
 
With this high-performance plant, Posco intends to expand its production capacity at the Pohang location in order to meet the growing demand for stainless steel strip.
 
The plant is designed for an annual production of 500,000 tonnes of stainless steel cold strip. It will process both hot (annealed and pickled) strip as well as cold rolled AISI 300 and AISI 400 grades of strip. Strips with widths of up to 1350 mm and a maximum entry thickness of 5 mm can be rolled down to minimum final thicknesses of 0 4 mm.
 
The centerpiece of the tandem mill comprises four 18-high cold rolling stands with slim work rolls and high forming capacity that are ideally suited for rolling stainless steel strip. All mill stands are fitted out with final control elements and measuring instruments to attain close strip thickness tolerances and optimum flatness with the aid of automated control systems.
 
Automatic coil feeding with a high-performance automated laser welding machine will help to guarantee smooth and continuous rolling operation as well as maximum productivity, as will a large entry accumulator and the exit section with flying drum shear and double coiler group. The plant also features inline strip inspection, which will help to facilitate direct quality control of the finished product.
 
For cooling and ultra-fine filtration of the rolling oil used, provision is made for a regenerative filter system so as to ensure careful handling of the resources used and of the environment.
 
SMS group is, under the holding of 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.