Compensating Decoupling Strategy of Setting Strip Gauge and Flatness of Aluminous Board Timber

The gauge control and flatness control are both master of the aperture of cold mill during the process of aluminous timber rolling, and intense coupling connection exists in both of their control loops.The decoupling compensating of setting and adaptive decoupling strategy is presented to the coupling problem existing in the gauge and flatness control system.The problem of influence of the pressure of bend roller upon the decoupling system of gauge and flatness is solved.The latter part of the strategy is a kind of decoupling method that is solving the imprecision of rolling pressure when the strip is through cold mill.The simulation result and field application show that the method can improve precision of gauge and flatness control and meet the requirements of the aluminum plate quality synthetic controlling.