| 摘要 |
<p>PURPOSE:To treat a simple model at a high speed and to control highly accurately the temperature of a material, by dividing a temperature-controlled steel material into sections having each a given length, and calculating a necessary correcting value basing on a target value and an actual one at each section to control the temperature of the successive material of the same size. CONSTITUTION:In a continuous hot rolling process of a steel material, whose temperature is controlled already by cooling, is divided into sections having each given lengths in the lengthwise and crosswise directions. A necessary correcting value of temperature is calculated by correcting the capability of a temperature controlling device such as a cooling device basing on the difference between a target value of temperature to be controlled and an actual value at each section. This correcting value is made to correspond to the same section of the successive material to be controlled in temperature, and is used as a final correcting value in controlling a material temperature. The correcting value is always replaced at need with the nearest correcting value used in the present control. Thus, a control error is reduced by this method.</p> |
