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

A rolling force compensation method and system suitable for cold tandem rolling mill

A technology of cold tandem rolling unit and compensation method, which is applied in the direction of rolling force/roll gap control, etc., can solve problems that have not been raised, and achieve the effects of improving production efficiency and quality, ensuring stability and shape quality

Active Publication Date: 2022-01-14
YANSHAN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, according to the literature search, most domestic and foreign studies focus on the role of tension in the production process of rolling mills, put forward the basic principles of tension control and factors affecting tension, and adjust low-speed rolling mills according to product specifications, steel types and rolling procedures. The additional tension under the control can minimize the rolling pressure during low-speed rolling and reduce the fluctuation of rolling pressure, so as to obtain a good shape and improve the setting accuracy of the rolling force model in the cold tandem rolling process control system. It does not propose to compensate the rolling pressure in advance by setting the additional tension when the flow rate of the emulsion is uncertain

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
  • A rolling force compensation method and system suitable for cold tandem rolling mill
  • A rolling force compensation method and system suitable for cold tandem rolling mill
  • A rolling force compensation method and system suitable for cold tandem rolling mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] Embodiment 1: The steel type is DQ0133D1, and the specification is 1549mm×0.64mm (width×thickness)

[0104] Firstly, in step (A), the equipment parameters of each stand of the cold tandem mill are collected: work roll diameter d w =430mm, intermediate roll diameter d c =505mm, support roller diameter d b =1295mm, maximum rolling force P max =21000KN, working roll body length l w =1850mm, the length of the middle roll body l c =1885mm, the length of the back-up roller body l b =1850mm, work roll bearing housing center distance L w =4070mm, center distance L of bearing housing of intermediate roller c =4070mm, support roller bearing seat center distance L b =4070mm, work roll elastic modulus E=210Gpa, work roll Poisson's ratio ν=0.3;

[0105] Then in step (B), collect the rolling process parameters of each stand of the five-stand cold tandem rolling unit, get i=1; the rolling pressure setting value of the 1st-5th stand KN; 1-5 frame strip reduction ε j ={38%, 3...

Embodiment 2

[0129] Embodiment 2: The steel type is DT0143D9, and the specification is 1370mm×0.8mm (width×thickness)

[0130] Firstly, in step (A), the equipment parameters of each stand of the cold tandem mill are collected: work roll diameter d w =430mm, intermediate roll diameter d c=505mm, support roller diameter d b =1295mm, maximum rolling force P max =21000KN, working roll body length l w =1850mm, the length of the intermediate roll body l c =1885mm, the length of the back-up roller body l b =1850mm, work roll bearing housing center distance L w =4070mm, center distance L of bearing housing of intermediate roller c =4070mm, center distance of support roller bearing housing L b =4070mm, work roll elastic modulus E=210Gpa, work roll Poisson's ratio ν=0.3;

[0131] Then in step (B), collect the rolling process parameters of each stand of the five-stand cold tandem rolling mill, get i=1; the 1-5th stand rolling pressure setting value KN; 1-5 frame strip reduction ε j ={31.4%...

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 discloses a rolling force compensation method suitable for a tandem cold rolling mill. In the compensation method, firstly, the equipment parameters and rolling process parameters of each stand of the tandem cold rolling mill are acquired; according to the equipment parameters and the rolling process parameters , to calculate the additional tension to compensate the tension in the speed-up and down-speed stages of the cold tandem mill. The present invention fully considers the characteristics of the emulsion flow rate and the excessive fluctuation of the rolling force during the speed-up and down stages of the cold tandem rolling mill, and establishes a corresponding The compensation model of the additional tension for the rolling force, and the quantitative compensation for the rolling force through the corresponding compensation model ensures the stability of the rolling force and the quality of the plate shape during the speed-up and down-speed rolling stages, and improves the actual production efficiency and quality. The unit brings economic benefits.

Description

technical field [0001] The invention relates to the technical field of continuous cold rolling, in particular to a rolling force compensation method and system suitable for a continuous cold rolling mill. Background technique [0002] In recent years, with the rapid development of automobiles, home appliances, instruments, and food packaging industries, as well as the progress of modern sheet metal processing industry in high automation and the use of cold-rolled strip steel is becoming more and more extensive, users have high requirements for the shape quality of cold-rolled strip steel. Higher and higher demands have been put forward. In the production process of continuous cold rolling, the change of rolling pressure in the speed-up and down-speed stage plays a decisive role in the control of the overall shape quality of the strip steel. The rolling pressure in the speed-up and down-speed stage has a large fluctuation, which will make the head and tail shape. The quality...

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 Patents(China)
IPC IPC(8): B21B37/58
CPCB21B37/58
Inventor 白振华顾清申立涛张亚震张文军
Owner YANSHAN UNIV
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