| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a production method to produce a deformed steel plate with a high dimensional accuracy and production efficiency. SOLUTION: This comprises a rolling process to obtain a prescribed plate thickness profile, a process to seek an actual plate thickness profile in the longitudinal direction of a workpiece, a computation process to compute a change point of plate thickness and determine a cutting point based on the actual plate thickness profile in order to satisfy a prescribed plate thickness tolerance in a total longitudinal length, and a marking process to mark an obtained change point of plate thickness and cutting point on the workpiece. Furthermore, based on a measured distance from a workpiece obtained by using two laser rangefinders, a length meter and calculation device, the flatness is calculated by continuously obtaining a measured distance difference between 2 adjoining points in the longitudinal direction of a workpiece, conducting an integral calculation in each zone having the same inclination and deducting an offset amount preset for each zone.</p> |
