Intelligent comprehensive evaluation method for cold-rolled strip shape

A comprehensive evaluation and strip shape technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of strip grade objection, loss of users and manufacturers, etc.

Inactive Publication Date: 2016-01-27
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 comprehensive evaluation method for cold-rolled strip shape
  • Intelligent comprehensive evaluation method for cold-rolled strip shape
  • Intelligent comprehensive evaluation method for cold-rolled strip shape

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0044] figure 1 It is the calculation flow chart of the intelligent comprehensive evaluation method of cold-rolled strip shape of the present invention. Now, taking the online detection data of one of the coils of a 1050 rolling mill as an example, an online flatness statistical model of cold-rolled strip steel is established. Collect the plate shape data of the 5th pass, the entrance thickness is 0.59mm, the exit thickness 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 macro flatness, and set the interval value of the grade level of each flatness component:

[0046]

Excellent

Good

Qualified

Unqualified

Macro plate shape / (I)

(I hmin,4]

(4,8]

(8,12]

(12,I hmax]

1st plate shape / (I)

(I 1min,1]

(1,2]

(2,3]

(3,I 1max]

Secondary plate shape / (I)

(I ...

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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 of cold rolled strip shape based on fuzzy theory and T-S type fuzzy neural network. Background technique [0002] The production of plate and strip has an important position in the national economy, and it is widely used in automobiles, home appliances, aviation and other fields. Flatness is an important indicator to measure the product level of cold-rolled strip steel. Flatness has always been one of the on-site problems that plagued steel companies. The application of the flatness meter makes it possible to detect flatness online, and also provides a reliable flatness data basis for flatness closed-loop control. In China, the whole roll intelligent flatness detection roll newly developed by Yanshan University has been successfully applied in actual production. And the signal is accurate and stable, the measurement accuracy is high, up...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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