Rolling has a final phase in which the sheet metal, before being wound to form coils, must be dried by the water remaining there following the previous cooling phase.
The sheet is in fact first cooled by spraying water with spray nozzles. Part of this water falls, part evaporates, but it partially remains on the sheet. It is essential to remove the water before wrapping the sheet in coils because, if not properly dried, the material oxidizes and degrades, compromising the final product.
Generally it is very problematic to simulate the blowing and then to size and position the blowing nozzles before the assembly phase.
Our technical department made a first prototype of a simulation tool for blowing air on sheets in continuous rolling processes by appropriately manipulating the virtual simulation tools in the software package available to PNR.
The first version of a targeted and efficient simulation tool has been developed for this type of application, which allows us to respond promptly and quickly to the simulation requests made by our customers in the metallurgical industry.
Until now, air blowing simulations had never been done due to their complexity, the absence of dedicated models and the consequent high cost in engineering hours for fine-tuning. The problem was then solved by empirically sizing the nozzles.