METHOD FOR DECISION OF STRIP TARGET SHAPE USING THICKNESS PROFILE

摘要

PURPOSE: A method for predicting and controlling target shape of the cold rolling process based on the calculated degree of influence on shape after calculating widthwise thickness profile information into a degree of influence on shape in the cold rolling process using a shape control system is provided. CONSTITUTION: The method for automatically judging target shape of work through widthwise thickness profile comprises first step (S31) of obtaining widthwise profile of work; second step (S32) of numerically expressing the obtained widthwise profile of work and calculating crown and wedge values that are work shape influencing factors using the numerically expressed widthwise profile of work; third step (S33-S36) of respectively calculating shape influencing degree of corresponding crown and shape influencing degree of corresponding wedge if there is correlativity after judging whether there is correlativity between the crown and wedge values and shape of the work using the numerically expressed widthwise profile of the work, and calculating shape control set values according to the influencing degrees of the crown and wedge values; and fourth step (S37) of controlling the initial shape of the work using the calculated shape control set values.