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

Emulsified liquid flow dynamic and comprehensive optimization setting method suitable for cold continuous rolling unit

A technology for tandem cold rolling mills and optimized settings, applied in rolling mill control devices, mass flow control devices, metal rolling, etc., can solve problems such as inability to dynamically adjust and allocate fixed

Active Publication Date: 2017-01-11
唐山市榕泽钢铁加工有限公司
View PDF9 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the flow distribution of the emulsion between the stands of the cold tandem rolling mill is fixed and cannot be adjusted dynamically with the change of the rolling speed, the present invention provides a method that can fully exert the cooling capacity of the emulsion of each stand and avoid the supply of the emulsion flow. Insufficient rolling pressure caused by abnormal increase and rolling pressure "upside down" and other problems, improving the production stability of the unit, suitable for the dynamic comprehensive optimization setting method of the emulsion flow rate of the cold tandem rolling unit

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
  • Emulsified liquid flow dynamic and comprehensive optimization setting method suitable for cold continuous rolling unit
  • Emulsified liquid flow dynamic and comprehensive optimization setting method suitable for cold continuous rolling unit
  • Emulsified liquid flow dynamic and comprehensive optimization setting method suitable for cold continuous rolling unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A dynamic comprehensive optimization setting method of emulsion flow rate suitable for cold tandem mills. The calculation process is as follows figure 1 Shown:

[0054] First, in step (a), the parameters are collected:

[0055] (a1) Collecting strip parameters, mainly including strip width b=850mm, strip thickness H in and out of each rack i ={2.1,1.17,0.65,0.40,0.27}(mm), h i ={1.17,0.65,0.40,0.27,0.22}(mm), the typical inlet and outlet speeds of strips in each rack (m / s)

[0056] v 0 , i = 1 # 44.1 , 93.4 , 147.5 , 330 , 219 ; 2 # 79.4 , 203.3 , 285.4 , 483.2 , 375.3 ; 3 # 112.6 , 317.3 , 448.1 , 642 , 622.8 ; 4 # 163.2 , 437.8 , 615.5 , 813.2 , 741.1 ; 5 # 213.3 , 583.3 , 821.4 , 1015.3 , 1126.2 ,

[0057] v 1 , i = 1 # 79.4 , 203.3 , 285.4 , 483.2 , 375.3 ; 2 # 112.6 , 31...

Embodiment 2

[0102] First, in step (a), the parameters are collected:

[0103] (a1) Collecting strip parameters, mainly including strip width b=975mm, strip thickness H in and out of each rack i ={2.1,1.17,0.65,0.40,0.27}(mm), h i ={1.17,0.65,0.40,0.27,0.22}(mm), the typical inlet and outlet speeds of strips in each rack (m / s)

[0104] v 0 , i = 1 # 32.4 , 82.4 , 135.7 , 320 , 208 ; 2 # 56.9 , 182.6 , 264.5 , 462.3 , 359.3 ; 3 # 88.6 , 285.3 , 412.8 , 611 , 592.8 ; 4 # 124.3 , 398.7 , 576.5 , 774.3 , 730.1 ; 5 # 166.3 , 533.3 , 771.4 , 968.5 , 974.1 ,

[0105] v 1 , i = 1 # 56.9 , 182.6 , 264.5 , 462.3 , 359.3 ; 2 # 88.6 , 285.3 , 412.8 , 611 , 592.8 ; 3 # 124.3 , 398.7 , 576.5 , 774.3 , 730.1 ; 4 # 166.3 , 533.3 , 771.4 , 968.5 , ...

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 an emulsified liquid flow dynamic and comprehensive optimization setting method suitable for a cold continuous rolling unit. The method mainly comprises the following steps that (1) parameters are collected; (2) initial values, optimizing step sizes and middle process parameters are set; (3) the flow and the optimizing step sizes of emulsified liquid of a No.2 rack, a No.3 rack, a No.4 rack and a No.5 rack are defined; (4) cooling capacity coefficients of the emulsified liquid of the racks are calculated; (5) the theoretical optimal flow of the racks at the steady rolling speed is calculated; (6) the total flow of the emulsified liquid of the racks is calculated; (7) an emulsified liquid flow dynamic and comprehensive optimization objective function is calculated; (8) the optimal flow of the emulsified liquid of the racks is output; and (9) distribution of the flow of the emulsified liquid of the racks at the new rolling speed is completed till distribution of all the flow is completed. According to the method, the problems that due to fixed distribution of the flow of the emulsified liquid between the racks, the rolling pressure is increased abnormally, and the rolling pressure is inverted are avoided; the cooling capacity of the emulsified liquid is given full play, and the cooling capacity of the emulsified liquid of the racks is more uniform; and the production stability is improved.

Description

Technical field [0001] The invention belongs to the technical field of cold rolling, and particularly relates to a method for setting an emulsion flow rate of a cold tandem rolling mill. Background technique [0002] In the cold tandem rolling production process, in order to reduce the surface temperature of the roll and the strip, reduce the friction coefficient and friction on the surface of the contact arc in the deformation zone, prevent the metal from sticking to the surface of the roll and reduce the wear of the roll, it is necessary to improve the roll and the strip. Emulsion sprayed on the surface. For the cold tandem mill at this stage, the emulsion flow between the stands is distributed according to the production experience according to the fixed flow rate under the premise that the total flow and the single stand flow do not exceed the maximum value. Taking into account that the strength, reduction ratio, front and rear tension of the strips of each stand of the cold...

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): B21B37/00
CPCB21B37/00B21B2037/002
Inventor 白振华赵伟泉王松尧邢雨钱承李柏阳杜江城
Owner 唐山市榕泽钢铁加工有限公司
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