Paper published by IE for their 32nd Engineering Congress- Chennai
32 nd Indian Engineering Congress, The Institution of Engineers (India) Chennai, 2017 Theme: Innovation in Engineering: Competitive Strategy Perspective Evolution of Automatic Gauge Control philosophy for flat rolling in Single Stand Mills. Amitabh Kumar Sinha, B.Sc (Engg), FIE, Ranchi, India, amit1950@yahoo.co.in Abstract During the course of author’s working in Steel Industry, world of automatic gauge control changed from Mechanical Screw Down Control to Hydraulic AGC. This led to evolution of different control philosophies depending upon available sensors, required and possible response time as well as customer expectations and quality concerns. The control system also changed from available sophistication in automation e.g. from operational amplifiers and potted logic blocks of 70’s to Micro Processor and PLC based system including higher levels of process controls. The paper sums up the control strategies used