Method for correcting temperature measured value for hot rolling process

Abstract

The invention belongs to the technical field of hot rolling automatic control, and in particular to a method for correcting a temperature measured value for a hot rolling process. The method comprises the steps of firstly collecting production data of historical rolled pieces in the hot rolling process; performing cluster analysis on the production data of the historical rolled pieces to obtain a classic working condition of the historical rolled pieces; performing working condition matching on a current rolled piece and the historical rolled pieces according to the production data of the historical rolled pieces and the current rolled piece; then performing data fusion to correct a temperature measured value of the current rolled piece so as to obtain a corrected temperature measured value of the current rolled piece. By the hot rolling process temperature measured data processing method, in a hot rolling method, disclosed by the invention, the influence of site environment causal factors on the accuracy of the temperature measured value can be eliminated, and an accurate corrected temperature measured value is obtained.

Description

technical field [0001] The invention mainly belongs to the technical field of hot-rolling automatic control, and in particular relates to a method for correcting the measured value of the hot-rolling process temperature. Background technique [0002] In the rolling process control system, the temperature of the rolled piece is a crucial parameter, and the accuracy of the temperature measurement is particularly important. Accurate temperature values ​​play an extremely important role in guiding hot rolling production. The measurement accuracy directly determines the accuracy of rolling schedule setting and the temperature control effect of the rolled piece, thus affecting the dimensional accuracy and mechanical properties of the product. [0003] In the production process, non-contact infrared pyrometers are generally used to measure the temperature of the rolled piece. Factors such as water vapor, smoke, and surface quality of the rolled piece during the rolling process may ...

AI Technical Summary

Problems solved by technology

Therefore, the hardware redundancy method can only solve the problem of abnormal temperature measurement values, but cannot effectively deal with the impact of accidental factors in the field environment on the accuracy of measurement values.

[0005] In view of the existing technology, it is difficult to solve the problem of the influence of the accidental factors of the site environment on the accuracy of the temperature measurement value. The impact of accuracy

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