| 摘要 |
<p>PURPOSE:To eliminate the influence of water, etc. on the measurement of a sheet thickness with simple constitution by rising part of a rolling material between a thickness gage and upper stream side stand, specifying the angle of inclination with a horizontal plane and measuring the sheet thickness. CONSTITUTION:A hot rolled steel sheet 10 is passed in an arrow A direction between the Ist stand 12 and the (I+1)th stand 14 and cooling water 30, 32 for roll cooling exist respectively. A looper roll 22 is raised between the stands 12 and 14 to increase the angle alpha of inclination of the sheet 10 with respect to the horizontal line to >=0.5 deg.. The cooling water 30 stays on the sheet 10 in the stand 12 on the upper stream side of the roll 22. The measurement of the sheet thickness with radiation is therefore executed with good accuracy without positioning the cooling water 30 on the radiation 34.</p> |
