| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus for measuring surface temperature which measures the temperature of a thick steel plate on a production line and calculates and obtains the whole surface temperature of front and rear faces from the measured temperature of the thick steel plate, and to provide a method for judging the material of the thick steel plate by which the material in the plate surface of the thick steel plate is evaluated and judged on the basis of the whole surface temperature which is measured and obtained by the apparatus. <P>SOLUTION: The apparatus for measuring the surface temperature of the thick steel plate includes: a first temperature measuring means 7 for measuring the surface temperature distribution on the surface of one of front and rear faces of the thick steel plate 3 on the outlet side of a finishing mill 2 and the outlet side of a cooling device 5 installed downstream therefrom; a second temperature measuring means 6 which measures the surface temperature on the outlet side of the finishing mill and the outlet side of the cooling device 5, at measurement points the number of which is smaller than measurement points which are measured by the first temperature measuring means, on a face which is different from the measurement face measured by the first temperature measuring means; and a temperature calculating means 13 which calculates the surface temperature in the measurement places of the second temperature measuring means from the measured temperature measured by the first temperature measuring means, obtains the error between the calculated temperature and the measured temperature measured by the second temperature measuring means and calculates the surface temperature at measurement places other than the measurement places of the second temperature measuring means. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
