Dynamic constant thickness ratio taper control method
A technology of equal thickness and wedge shape, which is applied in the direction of rolling force/roll gap control, etc., can solve the problems of rolling breakage, feedback control lag, rack wave shape, etc. The effect of shaping and rolling
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[0017] A dynamic constant thickness ratio wedge control method, as shown in the appendix figure 1 As shown, 1) The real-time wedge value W obtained after the meter at the exit of the finishing mill F7 detects the strip wedge and delays it by 20 meters;
[0018] 2) After filtering, comparing with the reference value, controlling the dead zone and controlling the amplitude limit, the F1 outlet wedge W*H is calculated according to the thickness ratio 1 / H 7 , where H 1 , H 7 is the thickness of F1 and F7 outlet strip steel, so as to calculate the roll gap deviation adjustment amount K / (1+Km of F1 frame 1 / Ks 1 )* W*H 1 / H n *1 / 2, where K is the gain coefficient, generally 0.5-0.8, Km 1 is the plastic deformation coefficient of the F1 frame strip, Ks 1 is the stiffness coefficient of the F1 rolling mill;
[0019] 3) As attached figure 2 As shown in the figure, when the strip, which has the effect of adjusting the roll gap deviation of the F1 frame by the wedge feedback...
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