Strip cooling control for flexible production of galvanized flat steel

The work is devoted to the problem of flexible small-scale production galvanized steel various sizes on a continuous hot-dip galvanizing unit with varying productivity. main focus heat treatment strip, requirements for which limit In conditions disturbances, it necessary proactively control using models, or reduce speed strip ensure that are met. Unlike most works control, this focuses cooling. Based analysis data Magnitogorsk Iron and Steel Works, shown violation cooling leads appearance defects in zinc coating. Dependence probability occurrence temperature given. Problems predictive formulated models absence section cavity. For each tasks, model structure method its tuning determined according accumulated over significant period operation under uncontrolled systematic disturbances. system proposed by estimation cavity as controlled variable. estimate from model. lack measurement not then results presented Works unit. structures methods their adjustment can be applied development metal heating furnaces.