Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Strip shape fuzzy control method of cold-rolled strip steel

A technology of fuzzy control and strip shape, applied in the field of cold-rolled strip, which can solve the problems of shape defects of cold-rolled strip products and inability to obtain high precision.

Active Publication Date: 2013-11-20
WISDRI ENG & RES INC LTD
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of fuzzy control method of cold-rolled strip steel shape, to solve the problem of cold-rolled strip products due to the inability to obtain the high-precision flatness control and regulation efficiency coefficient of each flatness control device in the conventional flatness control method. Technical Problems of Plate Shape Defects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Strip shape fuzzy control method of cold-rolled strip steel
  • Strip shape fuzzy control method of cold-rolled strip steel
  • Strip shape fuzzy control method of cold-rolled strip steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0090] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0091] figure 1 It is a flowchart of an embodiment of the present invention, and it includes the following steps:

[0092] 1) For strip steel of the same specification, divide the working range of mill outlet tension and rolling pressure into n sub-ranges evenly, according to the different mill outlet tension and rolling pressure sub-ranges and rolling pressure sub-ranges All possible cases of classify the rolling case as n 2 The value of n is greater than 3 (because there are 3 situations of rolling mill outlet tension and 3 situations of rolling pressure, so the total number of working conditions should be greater than 3×3=9);

[0093] 2) For the above n 2 For each working co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a strip shape fuzzy control method of cold-rolled stripe steel. A working section of the outlet tension of a rolling mill and a working section of the rolling pressure of the rolling mill are divided into n branch sections respectively, and rolling conditions are classified to n2 working conditions according to all possible conditions of the different sections where the outlet tension and the rolling pressure of the rolling mill located; corresponding strip shape control fuzzy inference control models are established respectively; related fuzzy membership functions in the strip shape control fuzzy inference control models are determined by combining the physical characteristics of a roller pouring device, a working roller bending device and a middle roller bending device; strip shape fuzzy control models are established by using a Takagi-Sugeno fuzzy model establishing rule; corresponding strip shape fuzzy control models are selected according the working conditions in a rolling process to carry out on-line regulation of the roller pouring device, the working roller bending device and the middle roller bending device. The strip shape fuzzy control method of the cold-rolled stripe steel solves the technical problem that due to the fact that a conventional strip shape control method cannot obtain the high-precision regulation and control efficacy coefficient of strip shape control, strip shape defects exist in the cold-rolled strip steel products.

Description

technical field [0001] The invention belongs to the field of cold-rolled strip steel, in particular to a fuzzy control method for cold-rolled strip steel shape. Background technique [0002] In recent years, with the continuous expansion of the scope of use of cold-rolled strip products, users have higher and higher requirements for the quality of the strip shape, so the cold-rolled strip shape control technology has become a modern steel enterprise and large research institutions. Special attention to key research topics. The principle of flatness control is to calculate the adjustment amount of each flatness control actuator by designing the flatness control algorithm, so that each flatness control means cooperate with each other, so as to eliminate the deviation between the flatness target value and the actual measured value to the greatest extent . [0003] The shape control algorithm is the core content of the cold-rolled strip shape control system, and its quality di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/28
Inventor 赵昊裔
Owner WISDRI ENG & RES INC LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com