METHOD FOR CONTROLLING WIDTH OF ROLLING MATERIAL

摘要

PURPOSE: A method for controlling the width of rolled materials is provided to predict the width of final rolled products by measuring the temperature and width of the rolled materials. CONSTITUTION: A method for controlling the width of rolled materials(M) is as follows: The rolled materials are laterally rolled by one or more rolling mills(S100); The width(Wr) and temperature(Tr) of the rolled materials are measured(S200); The width(We) of final rolled products is predicted based on the measured width and temperature of the rolled materials(S300); The amount of rolling mills is controlled based on the predicted width of the final rolled products to make the final rolled products have the predicted width(S400). [Reference numerals] (AA) Start; (BB) Calculating a control amount(Cv) for second width rolling; (CC) No; (DD) We is in a predetermined range?; (EE) Yes; (FF) Finish rolling; (GG) End; (S100) First width rolling; (S200) Measuring the width(Wr) and temperature(Tr) of a rolled material(M) after first width rolling; (S300) Predicting the width(We) of a final rolled product; (S400) Second width rolling;