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Siemens to modernize hot-strip mill at Shanxi Taigang Stainless Steel, China


Meeting increased market demands with improved mill performance and product quality

Linz, Austria, Taigang Group International Trade Co. Ltd. (Taigang Group) awarded Siemens VAI Metals Technologies GmbH a contract for the modernization of a hot-strip mill at Shanxi Taigang Stainless Steel Co. Ltd., located in Taiyuan, China. The project comprises the supply of engineering, equipment, electrics and automation in addition to various services to increase mill performance, product quality and the product range. The contract value for Siemens VAI is a low two-digit million euro figure. The project is scheduled to be completed in 2011.

Taigang Group is the largest Chinese producer of stainless steel and one of the most important producers of long and flat products in China. Two hot-strip mills are operated by Taigang Group in Taiyuan, Shanxi Province. The hot-strip mill to be modernized was originally purchased as a second-hand facility from Japan and was subsequently relocated to Taiyuan in 1994. In 2002, the mill was initially modernized by Siemens VAI and Siemens AG to enable a production output exceeding 3,000,000 t/a.

In order to further improve mill performance and product quality as well as to extend the product mix, Taigang Group commissioned Siemens VAI to revamp this rolling facility once again. The 7-stand finishing mill will be equipped with new main drives, a new work-roll lubrication system and the existing work-roll cooling system will be enhanced with the installation of dynamic work-roll cooling headers. The laminar-cooling line will be outfitted with turbo-cooling headers featuring dynamic flow control to provide accelerated cooling. A new coiler will replace the existing No. 3 coiler and the coil-transport system will be modified. Furthermore, the Simatic-PCS-7 automation system previously supplied by Siemens will be updated. Supervisory services for erection, start-up and commissioning as well as training of customer personnel round off the Siemens VAI supply scope.

The extended product mix will be comprised of carbon, HSLA (high-strength low-alloy), stainless and pipe steel grades with strip thicknesses ranging from 1.5 mm to 12.7 mm at widths between 900 mm and 1,400 mm.

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The Siemens Industry Sector (Erlangen, Germany) is the worldwide leading supplier of environmentally friendly production, transportation, building and lighting technologies. With integrated automation technologies and comprehensive industry-specific solutions, Siemens increases the productivity, efficiency and flexibility of its customers in the fields of industry and infrastructure. The Sector consists of six divisions: Building Technologies, Drive Technologies, Industry Automation, Industry Solutions, Mobility und Osram. With around 207,000 employees worldwide (September 30), Siemens Industry achieved in fiscal year 2009 total sales of approximately €35 billion.

The Siemens Industry Solutions Division (Erlangen, Germany) is one of the world’s leading solution and service providers for industrial and infrastructure facilities comprising the business activities of Siemens VAI Metals Technologies, Water Technologies and Industrial Technologies. Activities include engineering and installation, operation and service for the entire life cycle. A wide-ranging portfolio of environmental solutions helps industrial companies to use energy, water and equipment efficiently, reduce emissions and comply with environmental guidelines. With around 31,000 employees worldwide (September 30), Siemens Industry Solutions posted sales of €6.8 billion in fiscal year 2009.

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Reference Number: IIS201008559e


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