Control method for steel plate performance optimization

A control method and steel plate technology, applied in the field of steel rolling control, can solve problems such as poor precision and complex calculations

Inactive Publication Date: 2017-07-28
柳州市同维达豪科技有限公司 +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The present invention aims to provide a control method for steel plate performance optimization, which overcomes the defects of complex calculation and poor precision in the prior art, and has the characteristics of simple calculation and high prediction accuracy

Method used

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  • Control method for steel plate performance optimization
  • Control method for steel plate performance optimization
  • Control method for steel plate performance optimization

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Experimental program
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Embodiment 1

[0060] Such as figure 1 As shown, this embodiment is represented by the SS400 steel plate with a thickness of 16 mm as a typical hot-rolled product, and the control method for optimizing the performance of the steel plate provided includes the following steps:

[0061] A. Collect the historical data of steel plate chemical composition parameters, process control parameters, and product performance parameters involved in the production process of SS400 steel plates, and use the partial least squares regression method to construct a predictive mathematical model for yield strength and tensile strength for the above parameters;

[0062] Described partial least square regression method builds the method for mathematical model as follows:

[0063] a. Standardize the independent variable matrix X=[x1,...,xp]n*p (p=19) composed of chemical composition parameters and process control parameters to obtain matrix variable E0=[E01,...,E0p]n* p; Standardize the dependent variable matrix Y...

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Abstract

The invention aims at providing a control method for steel plate performance optimization. The control method includes the steps that A, historical data of parameters involved in the steel plate production process is acquired, and a prediction mathematical model of yield strength and tensile strength is established; B, projection importance values of respective variables are calculated, and key parameters are determined; C, key parameter data in real-time production is acquired to serve as key parameter initial values; D, the key parameter initial values are introduced into the prediction mathematical model of yield strength and tensile strength, if predicted values are within the range of target values, key parameter regulation and control target values are obtained, and the step G is executed; or else, the step E is executed; E, after being randomly optimized, the key parameter initial values are introduced into the prediction mathematical model; F, loop optimization is continuously carried out till the key parameter regulation and control target values are obtained; G, the steel rolling procedure process is controlled through the key parameter regulation and control target values. The method overcomes the defects that the existing technology is complex in calculation, poor in precision and the like, and has the advantages of being simple in calculation and high in control precision.

Description

technical field [0001] The invention relates to the field of steel rolling control methods, in particular to a control method for steel plate performance optimization. Background technique [0002] At present, my country's economy has entered a new normal state of transition from high-speed growth to medium-to-high speed growth, and the iron and steel industry presents the development characteristics of "three lows and one high" of low growth, low price, low benefit and high pressure. The intensity of market competition in the iron and steel industry will continue to intensify in the process of market-oriented reforms. Surviving iron and steel enterprises must have the ability to survive and develop in the market, and such ability must be based on low-cost production and high-quality steel. above. With the development of the economy, the demand for steel plate products tends to be diversified, and the amount of steel plates tends to be multi-variety and low-volume. Various ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2111/06
Inventor 黄斌陈冬玲卢敏韦云展朱鹏宇潘伟程谢柳军梁小平陈丙荣
Owner 柳州市同维达豪科技有限公司
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