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A user-friendly tool-set for compensating post-rolling effects in cold rolling mills
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Division of Systems and Control.
2015 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Rolling is the act of passing a material between a set of rolls with the purpose of reducing the thickness and/or deforming it. Metal rolling is arguable one of the most important industry processes in modern society. Flat rolling is a task that can be performed with very high precision. However, subsequent processes might deform this flatness profile to a less flat post-rolling flatness. This deformation can be so severe that strips even have to be scrapped because of poor flatness. Previous work has shown that a - in mathematical terms - simple method can result in improvements of flatness of up to 34%.

In this Masters thesis, a software platform for working with models for post-rolling flatness compensation was developed and statistical methods were implemented for compensating future deformations already during rolling.

Previous to this project there existed no flat rolling system which used statistical data for compensating for post-rolling flatness deformations. A component for use with the ABB Stressometer system has been created which is intended both for use when testing new mathematical methods of modelling and for the end-user (i.e. the plant operator) to use in actual production. The system has been installed as a test at a plant at SAPA Heat Transfer AB in Finspång, Sweden.

Place, publisher, year, edition, pages
2015. , 39 p.
Series
UPTEC F, ISSN 1401-5757 ; 15007
National Category
Robotics
Identifiers
URN: urn:nbn:se:uu:diva-253446OAI: oai:DiVA.org:uu-253446DiVA: diva2:814672
External cooperation
ABB Process Automation
Educational program
Master Programme in Engineering Physics
Supervisors
Examiners
Available from: 2015-05-28 Created: 2015-05-27 Last updated: 2015-05-28Bibliographically approved

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