Active Vane Ring is an online real-time control system, with its control tools distributed as several electromechanical devices across the vane ring. The cooling air flow delivered by the fans is pressurized in the vane ring chamber and then distributed to each wind channel. The electromechanical devices drive valves to open and close, adjusting the size of the air outlets and the volume of air, thereby altering the cooling effect of the film blank at the die outlet to control the film thickness. From the control process perspective, there is no clear relationship between the film thickness change and the electromechanical control amount. The change in thickness and the valve position is nonlinear and irregular, with a significant impact on adjacent points when adjusting any valve, and a lag effect, creating interconnections between different time points. For such highly nonlinear, strongly coupled, time-varying, and uncertain control systems, it is nearly impossible to establish an accurate mathematical model. Even if a mathematical model can be established, it is extremely complex, difficult to solve, and may not have practical value. Traditional control methods are more effective for relatively certain control models, but they are ineffective and even inadequate for highly nonlinear, uncertain, and complex response information. In light of this, we have chosen fuzzy control algorithms. Additionally, we adopt a method to change the fuzzy quantification factors to better adapt to the changes in system parameters.