A new strip temperature control method for the heating section of continuous annealing line

Because of the imperfect feature of the current model and control, and frequent changes of the strip type and size, the current strip temperature control mode is not normally used in Baosteelpsilas three annealing lines. It affects the quality stability of products, energy consume, and equipments life. The new developed strip temperature control method for heating furnace of continuous annealing line has been applied in Baosteel 1550 CAL. It has reached 2degC as steady state precision and 10 minutes as dynamic response time.