Steel Dynamics has ordered three zinc coating mass control systems, which use a proven physics-based coating mass model to generate accurate references and control the knife to strip distances.
Steel Dynamics in the USA has placed an order with Industrial Automation Services (IAS) to design, supply and commission three zinc coating mass control systems.
Two systems will be delivered to the Butler, Indiana, plant and the third to the Jeffersonville plant.
Engineering for the three systems will be executed in parallel with commissioning of the Butler systems occurring first.
For control of the zinc coating, IAS will install the system, which uses a proven physics-based coating mass model to generate accurate references and control the knife to strip distances and stripping gas pressure.
During order transitions, advanced signal processing algorithms enable the controls to estimate coating thickness during order transitions within one coating gauge scan.
Resulting control actions minimise the generation of out-of-spec material and the minimised coating standard deviation allows for zinc savings and a typical return on investment within a few months.
The open architecture control system incorporates IAS's easy to maintain graphical programming interface, and takes advantage of IAS's considerable process know-how and local support.
The new control system will operate in concert with existing Sentek coating gauges to provide improved strip coating performance.
IAS will execute engineering design, project management, installation assistance, commissioning and operator/maintenance training from IAS's offices in Pittsburgh, PA., USA and Newcastle, NSW, Australia.
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