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Intelligent and comprehensive evaluation method for cold-rolled strip steel plate shapes

A comprehensive evaluation and strip shape technology, applied in measuring devices, instruments, etc., can solve problems such as loss of users and manufacturers, objections to strip grades, etc.

Inactive Publication Date: 2013-10-30
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, due to the different evaluation methods used, the user and the manufacturer will have objections to the grade of the strip, which will cause losses to both the user and the manufacturer.

Method used

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  • Intelligent and comprehensive evaluation method for cold-rolled strip steel plate shapes
  • Intelligent and comprehensive evaluation method for cold-rolled strip steel plate shapes
  • Intelligent and comprehensive evaluation method for cold-rolled strip steel plate shapes

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Embodiment Construction

[0043] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0044] figure 1 It is a calculation flow chart of the intelligent comprehensive evaluation method for cold-rolled strip shape of the present invention. Taking the online detection data of one coil of a 1050 rolling mill as an example, an online flatness statistical model of cold-rolled strip is established. Collect the plate shape data of the fifth pass, the thickness of the entrance is 0.59mm, the thickness of the exit is 0.42mm, and the width is 910mm.

[0045] First, according to the actual production on site, set the interval value of the grade level of the macroscopic plate shape, and set the interval value of the grade level of each plate shape component:

[0046]

Excellent

good

qualified

unqualified

Macro shape / (I)

(I hmin ,4]

(4,8]

(8,12]

(12,I hmax ]

1 shape / (I)

(I 1min ,1] ...

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Abstract

The invention discloses an intelligent and comprehensive evaluation method for cold-rolled strip steel plate shapes. The method is used for carrying out comprehensive evaluation on the macroscopic plate shapes and all plate shape components based on the fuzzy comprehensive evaluation theory and the fuzzy neural network theory and combined with the plate shape theory and a plate shape online detection method. The method includes the steps of carrying out online real-time pattern recognition on the plate shapes in a pattern recognition method based on the Legendre polynomial least square method, then building a plate shape comprehensive evaluation index model based on the fuzzy comprehensive evaluation theory, meanwhile, building a T-S type fuzzy neural network by using data of the macroscopic plate shapes and data of all the plate shape components, and carrying out comprehensive evaluation on an average value of the macroscopic plate shapes and an average value of all the plate shape components. According to the intelligent and comprehensive evaluation method for the cold-rolled strip steel plate shapes, the data of all the plate shapes are organically combined to build the comprehensive evaluation index model, and intelligent and comprehensive evaluation on plate shape quality is achieved.

Description

technical field [0001] The invention relates to a strip shape evaluation method, in particular to an intelligent comprehensive evaluation method for cold-rolled strip shape based on fuzzy theory and T-S fuzzy neural network. Background technique [0002] The production of plate and strip plays an important role in the national economy, and it is widely used in automobiles, home appliances, aviation and other fields. Shape is an important index to measure the grade of cold-rolled strip products, and the shape problem has always been one of the on-site problems that plague iron and steel enterprises. The application of the shape meter makes the online detection of the shape possible, and also provides a reliable shape data basis for the closed-loop control of the shape. In China, the latest intelligent shape detection roll for the entire roll developed by Yanshan University has been successfully applied in actual production. And the signal is accurate and stable, the measurem...

Claims

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Application Information

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IPC IPC(8): G01B21/20
Inventor 杨利坡丁顺风于丙强朱建旭
Owner YANSHAN UNIV
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