| 摘要 |
<p>PURPOSE:To correctly calculate a sheet profile by using a thickness by a gage meter in a rolling stand, and to control a sheet crown. CONSTITUTION:A scanning type sheet thickness gage is set on the outlet side of a rolling mill. A thickness by a gage meter in the center of the sheet, is calculated in the rolling mill, and a thickness H3 at each point in the width direction, is measured by the scanning type thickness gage. The thickness H2 of the corrected gage meter, at each part in the longitudinal direction in the center of the sheet, which is missed in the measurement of the scanning type thickness gage, is calculated with a value measured in the center of the sheet by the scanning type thickness gage and the thickness by a gage meter in the center of the sheet. H3 and H2 at each part in the longitudinal direction in the center of the sheet, are made a pair, and the thickness deviation of each pair, H2-H3, or a thickness ratio, H3/H2 is calculated, and a calculated result is made a data group showing a sheet profile. A sheet crown is calculated from this sheet profile, and is used for controlling a sheet crown as a detected sheet crown.</p> |
