Steel ingot cone elimination rolling control method for heavy plate mill
A control method and steel ingot technology, applied in the direction of rolling mill control device, metal rolling, metal rolling, etc., to achieve the effect of automatic controllable decone rolling
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[0097] The following specific examples are used to illustrate the effect of using the present invention to perform anti-cone rolling on steel ingots. In this embodiment, the size of the steel ingot is specifically: the thickness of the large end is 890mm, the thickness of the small end is 750mm, the width is 2255mm, and the length is 2430mm. Roll radius: 550mm. The rolling force calculation adopts the Sims formula, and the process parameters of each pass are the initial pass temperature of 1147°C, and then reduce it by 2°C for each pass, the speed is constant at 0.2m / s, and the rolling arm is 0.1m, the maximum allowable The rolling torque is 3200KNm. Set the number of points M=3, and the relative positions of each point are x1=0, x2=0.5, x3=1.0.
[0098] During the rolling process, the position of the rolling mill adopts the hydraulic automatic pressing position control mode, and the rolling mill is controlled to implement the multi-point set value of the roll gap width in t...
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