From STEEL GRIPS online
ArcelorMittal Hochfeld GmbH, Germany, orders a high-capacity wire rod mill
Sep 3, 2008
ArcelorMittal Hochfeld GmbH, with head office in Duisburg, Germany, has placed an order with SMS Meer, Germany, for the supply of a complete high-capacity wire rod mill for high-grade steels. The annual capacity shall be 690,000 t. Of this, the major portion of the products will be coldheading
steel grades. The mill will be designed for producing wire rod in high-grade steels and is characterized by its compactness and efficiency.
The SMS Meer order scope comprises the following: A walking-beam furnace, the mechanical and electrical equipment of the mill train, all of the supply systems, the finishing facilities for the wire-rod coils, the entire rolling and cooling equipment, and the erection/installation. The walking-beam furnace for billets of dimension 155 mm square will reach an output of 120 t/h. This is followed by a four-stand roughing train comprising HL (Housingless) stands with downstream free runout and an intermediate train consisting of 14 CL (CantiLever) stands, each in horizontal and vertical arrangement. The wire rod outlet comprises a cooling and equalizing section in loop arrangement, a sixstand wire rod block and a four-stand FRS block (Flexible Reduction and Sizing) - both in UHD (Ultra-Heavy Duty) arrangement.
The wire-rod block and the FRS block are each followed by a water cooling line. The core component of the mill is the FRS block together with the proven cooling and equalizing section. The supply scope therefore also includes the 104-m-long LCC (Loop Cooling Conveyor) for forced and retarded cooling, a total of three water cooling lines and the CCT (Controlled Cooling Technology) system developed by SMS Meer.
These facilities allow wire rod to be produced over the entire dimensional range of 5.5 to 25.0 mm by means of temperature-controlled rolling. Ultra-fine microstructures can be achieved especially for coldheading grades by thermomechanical rolling. The maximum rolling speed for 5.5 mm wire rod is 120 m/s.
The plant will go into production in August 2010.
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