TPT January 2020

T E CHNOLOG Y

New skin pass mill ordered from Fives

Pittsburgh, USA

STEEL Dynamics Inc (SDI) has issued an order for a high- efficiency skin-passmill –DMSSkinPass 4Hi – at theGalvTech facility of its Techs Division in Pittsburgh, Pennsylvania, USA. For high-quality strip finishing, a skin-pass mill is essential to remove the yield-point elongation effect and greatly improve the surface roughness and flatness. Clay Spangler, operations manager of SDI’s Techs Group, said: “Fives was selected for its reactivity, design flexibility and product quality. Given a limited line footprint, the inclusion of the skin-pass as well as a new bridle roll between the skin-pass and the tension leveller demonstrates innovative engineering. With a prompt delivery schedule and unique installation scheme limiting the production outage, Fives demonstrated a customer-understanding that was tough to beat.” The DMS SkinPass 4Hi is a new skin-pass mill from Fives, which is designed to improve performance and surface quality of a continuous galvanising line. The mill is a wet process type with a maximum rolling force of 5,500kN. It also incorporates design features such as optimum rolling and bending forces, limited deflection for reduced friction, better control and higher mill rigidity, automatic clamping, easy maintenance and exceptional component life and a quick work roll change via a go-through system. Fives designs a complete range of DMS SkinPass mills for various applications. For example, the DMS SkinPass 2Hi is designed for stainless steel production applications that require a high level of brightness, while the DMS SkinPass 4Hi and 6Hi are suitable for a wide variety of galvanised or continuous annealed steel products from low to high yield strengths. SDI and Fives began a preferred partnership last year, having signed a major contract for the design and supply of a new continuous galvanising line (CGL No3) and an upgrade of the continuous galvanising line (CGL No2), both located in Columbus Mississippi, USA.

Higher efficiency and less energy consumption with SiC inverter modules EFD Induction has always been at the forefront in developing the latest in solid-state technology. After first introducing the SiC transistor technology in 2014, we have now introduced high-efficiency, rugged SiC inverters to our Weldac systems. • More uptime, higher throughput and lower costs • Lower losses, less energy consumption, less cooling • Developed for both induction and contact welding • Short-circuit-proof, safe and reliable operation • Wide electronic automatic matching range • Small footprint, fast installation, easy to retrofit • Single cabinet up to 1100 kW • Frequency range selection • 12-pulse diode rectifier for even lower harmonic distortion • 5-year warranty on inverter modules and driver cards

PUTTING THE SMARTER HEAT TO SMARTER USE

Steel Dynamics, Inc www.steeldynamics.com Fives www.fivesgroup.com

www.efd-induction.com

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JANUARY 2020

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