Rolling schedule optimization method based on comprehensive equal load function

Abstract

The invention provides a rolling schedule optimization method based on a comprehensive equal load function. The rolling schedule optimization method includes the steps that firstly, a load function value of each pass is calculated according to initial thickness distribution, and accordingly, an initial load margin value is obtained; secondly, the outlet thickness of each pass is calculated according to the initial load margin value; thirdly, the practical load margin of the tail pass is calculated according to the output thickness of the last but one pass and the finished product thickness; and fourthly, if the deviation exists between the practical value of the load margin of the last but one pass and the initial load margin value, iterative calculation is conducted again according to the second step according to the corrected load margin till the deviation between the practical value of the load margin of the last but one pass and the correction value meets the precision requirement. At the moment, the thickness values of all passes and corresponding pressure values form the needed optimal reduction schedule, and the correction value of the current load margin is the optimal load margin of the schedule. By means of the rolling schedule optimization method based on the comprehensive equal load function, real-time optimal calculation of the reduction schedule can be achieved very effectively, and high project application value is achieved.

Description

Technical field: [0001] The invention relates to metallurgical technology, automation and rolling technology, and specifically refers to a rolling schedule optimization method based on a comprehensive equal load distribution method. Background technique: [0002] In the strip rolling production process, the setting of the rolling schedule has always been the key to organizing the production. Among them, the load distribution determines the state characteristics of the rolling process. It has a direct impact on the ease of operation, the reliability of the unit operation and the stability of the production process. Essentially, the load distribution determines the state characteristics of the rolling process. For example, load distribution directly affects product quality such as plate shape and thickness accuracy, and load distribution also has an important impact on rolling energy consumption, roll consumption, production process stability and operating rate and other indi...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the above problems, the object of the present invention is to provide a rolling schedule optimization method based on a comprehensive equal load function, which solves the problem that the empirical load distribution may not be the optimal rolling schedule in practical applications

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