Programmable controller software aluminium hot mill spray control

The details of the methods used in programming a programmable logic controller (PLC) system for improving the roll cooling control on a three-stand aluminium rolling hot finishing mill with a coolant spray system for work roll temperature control of narrow zones across the width of the work rolls are discussed. The operator functions, the programmable controller's handling of data, the program structure, and a detailed description of the program for controlling the sprays are described.<
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