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Contact stress distribution and roll surface temperatures in the roll gap analyzed with different sensors
Brno University of Technology, Czech Republic.
Brno University of Technology, Czech Republic.
RISE - Research Institutes of Sweden, Materials and Production, Swerea MEFOS.
Jernkontoret, Sweden.
Show others and affiliations
2014 (English)In: La Metallurgia Italiana, ISSN 0026-0843, Vol. 106, no 1, p. 19-25Article in journal (Refereed) Published
Abstract [en]

In this work, the contact stresses and temperatures during hot and cold rolling have been measured. A work roll containing three different sensors was used for the measurements. There were two contact devices for directly measuring forces and one temperature sensor. One sensor was the "ROLLSURF" sensor. Results obtained with this sensor have been presented earlier [1-3], The measurement principle is based on deformation measurements with strain gauges which were placed on an internal cradle-type roll insert. The second sensor was a friction pin sensor. The forces on the top of the pin were measured by three axis piezoelectric-transducers. The pin sensor was mounted inside the work roll opposite to the ROLLSURF sensor. The third sensor was a thermocouple placed next to the pin sensor. The temperatures were measured very close to the roll surface. The surface boundary conditions including the heat flux and surface temperatures were computed using inverse modelling calculations developed at Brno University of Technology. The main task of this paper is to show a comparison of the contact forces and contact length measured with the strain-gauge sensor and the pin-sensor.

Place, publisher, year, edition, pages
Associazione Italiana di Metallurgia , 2014. Vol. 106, no 1, p. 19-25
Keywords [en]
Cold rolling, Contact stresses, Friction coefficient, Heat flux, Hot rolling, Roll gap
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13454Scopus ID: 2-s2.0-84904701318OAI: oai:DiVA.org:ri-13454DiVA, id: diva2:973663
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2019-08-13Bibliographically approved

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