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

A Long Stroke Control Method for Rough Rolling Width Multi-target Rolling

A control method and multi-objective technology, which is applied in the long-stroke control field of multi-objective rolling of rough rolling width, can solve the problem of uneven width and spread of finishing rolling

Active Publication Date: 2016-07-27
BAOSHAN IRON & STEEL CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, a long-stroke control method with multi-point setting of the rough rolling width was developed to solve the situation of uneven width and spread of the finishing rolling. Rolling Width Control Accuracy

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 Long Stroke Control Method for Rough Rolling Width Multi-target Rolling
  • A Long Stroke Control Method for Rough Rolling Width Multi-target Rolling
  • A Long Stroke Control Method for Rough Rolling Width Multi-target Rolling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Rough rolling three-stage target control,

[0116] Vertical roller diameter: Ediaroll=1200.0mm;

[0117] Horizontal roll diameter: diaroll=1246.0mm;

[0118] Rough rolling 3-3 pass rolling;

[0119] (1) Step 1: Prepare rough rolling data.

[0120] E3 vertical roll reduction: E3Red=5.0mm

[0121] E3 dog bone spread: E3dogSpread=4.14mm;

[0122] Finished natural wide spread genetic coefficient head: InherFMSpreadH=-1.70mm;

[0123] The middle part of the genetic coefficient of finishing rolling natural widening: InherFMSpreadH=-1.20mm;

[0124] Finished natural wide spread genetic coefficient tail: InherFMSpreadH=-1.50mm;

[0125] Coefficient of thermal expansion: alfa=1.01;

[0126] Width margin learning value W MarginInher = 1.60.10.9 (mm);

[0127] Rough rolling target width system HMI correction value: W HMI =0.00.00.0 (mm);

[0128] Width allowance process correction value: W MarginTechnics =1.6-0.51.0 (mm);

[0129] Width margin basic value W MarginBas...

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 relates to rough rolling width multi-target rolling methods, particularly to a long-travel control method combined with common rough rolling short-travel control. The method comprises the steps of, firstly, preparing inherited data and process data of rough rolling outlet multi-target width computation; secondly, collecting measured rough rolling width data after the penultimate pass of rough rolling vertical rolls completes rolling, and calculating the rough rolling natural broadsiding of every measured point of a plate blank according to the pressing settings of the penultimate pass of horizontal rolls to obtain the rolling inlet width of the last pass of the rough rolling vertical rolls; thirdly, determining rough rolling outlet multi-section target width; fourthly, performing E2 multi-section calculation and control; fifthly, according to finish rolling outlet multi-section widths, performing rough rolling multi-section target width adaptive calculation. The long-travel control method can further improve the heat rolling width broadsiding precision as well as the production line yield rate.

Description

technical field [0001] The present invention relates to the field of hot-rolled steel strip production. Specifically, the present invention relates to a long-stroke control method for multi-target rolling of rough rolling width. According to the final pass of the finishing rolling, multiple width targets in the elongation direction of the rough rolling are calculated to form a multi-point setting rolling to solve the problem of different changes in the width of the finishing rolling at different rolling positions. The method can further improve the hot-rolling width widening precision and improve the yield of the production line. Background technique [0002] In the process of hot rolling steel, there are often problems such as narrowing of the width of the finished product at the head and unstable control of the tail, resulting in a blockage in the quality of the strip, which has to be downgraded or scrapped. Conventional hot rolling has only one target for rough rolling o...

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): B21B37/22
CPCB21B37/22B21B2261/06
Inventor 张健民沈际海尚雯
Owner BAOSHAN IRON & STEEL CO 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