Abnormal shape forecasting method suitable for four-high rolling mill
A four-high rolling mill, abnormal state technology, applied in the direction of rolling mill control device, metal rolling, metal rolling, etc., can solve the problems of unpredictability and inaccurate shape prediction
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Embodiment 1
[0075] First, in step (1), the normal equipment parameters of the four-high rolling mill are collected, including the roll body length L of the upper and lower work rolls and the upper and lower backup rolls w =1450mm, L b =1450mm; distance between upper and lower work roll bending cylinder l w =2300mm; the upper and lower support rollers press down the screw center distance l b =2300mm;
[0076] Subsequently, in step (2), the deviation value Δ=5mm between the rolling centerline of the four-high rolling mill and the roll centerline is obtained through measurement;
[0077] Subsequently, in step (3), calculate the distances between the upper and lower support roll pressing screws and the rolling center line, respectively l P 1 s = 1155 mm , l P 2 s = 1145 ...
Embodiment 2
[0107] First, in step (1), the normal equipment parameters of the four-high rolling mill are collected, including the roll body length L of the upper and lower work rolls and the upper and lower backup rolls w =1450mm, L b =1450mm; distance between upper and lower work roll bending cylinder l w =2300mm; the upper and lower support rollers press down the screw center distance l b =2300mm;
[0108] Subsequently, in step (2), the deviation value Δ=5mm between the rolling centerline of the four-high rolling mill and the roll centerline is obtained through measurement;
[0109] Subsequently, in step (3), calculate the distances between the upper and lower support roll pressing screws and the rolling center line, respectively l P 1 s = 1155 mm , l P 2 s = 1145 ...
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