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

Method for the flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills

A technology for roll replacement and rolling equipment, applied in metal rolling stands, metal rolling, manufacturing tools, etc., can solve problems such as the impossibility of work roll replacement

Active Publication Date: 2015-04-15
SMS DEMAG AG
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Work roll replacement is also not possible in this case

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
  • Method for the flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills
  • Method for the flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills
  • Method for the flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A conventional loop lifter 4 is located between the rolling stands 1 , 2 and 3 , via which the strip tension between the rolling stands can be adjusted. During the normal rolling process, as in the figure 1 As shown in , neither the pressure roll 5 arranged before the rolling stand 2 nor, if present, the pressure roller 5 ′ arranged after the rolling stand engages the hot strip 6 .

[0022] Now, for example, in order to replace the work rolls in the middle rolling stand 2, the rolls must be approached (auffahren), as in figure 2 shown in .

[0023] Since the hot strip is then no longer or not allowed to come into contact with the work rolls, at least the pressure roll 5 arranged in front of the roll stand 2 is activated, precisely together with the ring lifter 4 associated with it, so that The hot strip (without contacting the work rolls) can be guided through the open rolling stand with a corresponding strip tension.

[0024] The quick change of the work rolls can ...

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 a method of flying changing of working rolls in continuous casting and rolling installations and hot strip rolling mills, in particular in continuous hot strip rolling mills, wherein for exchange of working rolls by opening a rolling stand, those are disengaged from a to be rolled hot strip. According to the invention a regulated strip tension that can substitute the tension of the open rolling stand, is applied to the to-be-rolled hot strip with at least one hold-down roller that is introduced in a rolling line.

Description

technical field [0001] The invention relates to a method for rapidly (fliegend) changing work rolls in cast rolling plants and hot strip trains, in particular continuous hot strip trains. Background technique [0002] The work rolls of rolling mills are subject to natural wear which can lead to a loss of surface quality of the rolled strip. [0003] To avoid this, the work rolls need to be replaced from time to time. [0004] In hot rolling, the strip to be rolled must be heated to the required temperature prior to rolling, which is the case in which it is rolled directly by casting heat. [0005] When using shorter furnaces without buffers or when removing furnaces for completely continuous casting and rolling, the casting operation must be stopped in order to change the work rolls in a completely continuous rolling operation. A production loss cannot thus be avoided. [0006] A completely continuous casting and rolling operation (Gie Öwalzbetrieb) with a long casting se...

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): B21B1/46B21B31/08
CPCB21B39/08B21B31/12B21B31/08
Inventor C.克莱因F.本费尔E.温德豪斯
Owner SMS DEMAG AG
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