Strip shape control method based on target strip shape settings of cold-rolled strip steel

A technology for shape control and cold-rolled strip steel, which is applied in the field of steel rolling, can solve the problems of not being suitable for thin material target shape, poor quality of thin material shape control, and inability to realize setting and control, etc., achieving good application effect, Improve the quality of plate shape control, the yield of finished products and the effect of improving the operating efficiency of the unit

Active Publication Date: 2017-03-08
BAOSHAN IRON & STEEL CO LTD
View PDF10 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the problem that the existing control method is not suitable for the setting of the target shape of thin materials, it is impossi

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 control method based on target strip shape settings of cold-rolled strip steel
  • Strip shape control method based on target strip shape settings of cold-rolled strip steel
  • Strip shape control method based on target strip shape settings of cold-rolled strip steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] The shape control method of this embodiment is suitable for cold rolling mills such as single stand, 4 stands, 5 stands, 6 stands, etc., and can roll thin strip steel with a thickness less than 0.3mm, such as figure 1 As shown, the specific process of shape control in this embodiment is as follows:

[0060] (1) According to the characteristics of cold-rolled strip steel, the structure and working principle of the flatness control actuator of single-stand rolling mill or continuous rolling mill, determine the cold-rolled target flatness mathematical model describing the flatness control of cold-rolled strip steel, described The mathematical model of cold rolling target shape is:

[0061] F(x)=g*[a 1 +a 2 *x+a 3 *x 2 +a 4 *x 3 +a 5 *x 4 +a 6 *x 5 +a 7 *x 6 ]

[0062] Wherein, x is the abscissa of the normalized width direction, -1≤x≤1, x=Y / B, Y is the abscissa of the strip width direction, and B is the strip width;

[0063] a 1 ~a 7 is the coefficient in t...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a strip shape control method based on target strip shape settings of cold-rolled strip steel. The control method includes the steps of establishing a mathematical model of cold rolling target strip shapes; setting control parameters of the mathematical model of the cold rolling target strip shapes in different rolling passes according to different rolling technology requirements of different rolling passes; determining a target strip shape curve; obtaining a strip shape deviation curve by measuring actual strip shape curves of each pass in real time; and establishing a strip shape control strategy database according to the strip shape deviation curve, sending control commands and carrying out strip shape control. According to the control method, the product quality can be improved, the production efficiency can be improved, the rolling stability can be improved, and the problems that existing control modes do not adapt to settings of high-temperature rolling target strip shapes of thin strip steel, fine setting and controlling cannot be realized according to target strip shapes of a machine frame or passes and the control quality of strip shapes of the thin strip steel is poor can be solved.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to the setting of the cold rolling target plate shape in the rolling process of the cold rolling mill, which is suitable for thin material (product thickness ≤ 0.7mm) and variable temperature rolling, and can be used for single and double stand reversible Rolling mill and tandem mill production. Background technique [0002] Shape control is an important size index of the steel plate, and users (external users, internal annealing units) have strict requirements on the edge drop index of the steel plate. Aluminum Corporation of Canada takes the relative length difference between the longest and shortest longitudinal bars in the horizontal direction as the plate shape unit, which is called I unit, and one I unit is equivalent to a relative length difference of 10 -5 . So the plate shape is expressed as: [0003] [0004] In the formula: L represents the length of the short...

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
IPC IPC(8): B21B37/28
Inventor 宿德军陈军林润杰王红兵朱华群赵彬
Owner BAOSHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap