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Control for Cold Rolling Mills
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
2005 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Kallvalsverksreglering (Swedish)
Abstract [en]

This report contains the details in a final research thesis work done rolling mill technology. The work is carried out at Heat Transfer located at Finspång. The main objective of this work is to evaluate thickness and flatness data from the profile to give an optimal start value for the pressure and force applied on the machine and the speed as well, so that the profiles produced, have the right thickness and best possible flatness.

Thickness, start value for power, the degree of bending the profiles are set up and sent down to the control system.

The report starts with a theory part describing the heating and cooling during process for aluminium profiles. A practical part describes experiments conducted on the rolling mill process under various conditions.

The thesis work shows that the quality can be improved by rolling the slab in Aluminium industry by executing band tests and analysing graphs as 3-sigma, outward thickness and 3Dgraphs and its flatness.

Abstract [sv]

Den här rapporten avser ett examensarbete som har utförts inom valsteknik. Examensarbetet genomfördes på Sapa Finspång Heat Transfer. Syftet med arbetet var att utvärdera tjockleksdata och planhetsdata, dvs. att ge högsta optimala startvärdet för valskraften för att komma fort i rätt tjocklek och ge bästa möjliga planhet.

Tjockleken, startvalskraften, startkraft valsböjningen är de set up-värden som skickas ner till reglersystemet.

Rapporten inleds med en teoridel som beskriver varm- och kallvalsning av aluminium och en praktisk del som bygger på olika valsningsförsök.

Exsamensarbetet visar att det går att öka kvaliteten på valsämnet vid valsning inom aluminiumindustrin genom att utföra bandtester och analysera grafer som 3-sigma, utgående tjocklek samt 3D-grafer och dess planhet.

Place, publisher, year, edition, pages
2005. , p. 46
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-97924ISRN: LITH-ITN-EX--05/039--SEOAI: oai:DiVA.org:liu-97924DiVA, id: diva2:654689
Subject / course
Automatic Control
Supervisors
Examiners
Available from: 2013-10-08 Created: 2013-09-23 Last updated: 2013-10-08Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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