Comprehensive setting technology development of roll shifting for 20-high rolling mill
Aiming at the problem that the edge plate shape quality of the 20-high rolling mill strip product of a steel mill cannot meet the production demand,the equipment and process characteristics of the 20-high rolling mill were fully considered,and the influence of the upper and lower intermediate roll shifting of the 20-high rolling mill on the the plate quality shape was analyzed,and the edge drop or thickening that may be brought by the roll shifting was considered.Taking the edge drop within the allowable range and the best quality of the finished strip plate shape as the optimization goals,a comprehensive optimization model for roll shifting of the 20-high rolling mill was established,and the optimization results of the model represent the set value of the roll shifting amount that meets the optimization objec-tive requirements.On the basis of the roll shifting setting model,the corresponding comprehensive setting technology of 20-high rolling mill was developed,and after applying it to the production practice of 20-high rolling mill of a steel mill,the plate shape quality of the on-site product is significantly improved,and the edge drop is within the allowable error range,which brings significant technical improve-ment to the production work of the on-site 20-high rolling mill.
20-high rolling millroll shiftingplate shapeedge drop
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