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Design of form stable and visually crack free edge-glued oak panels.
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design. (Virkeslära)
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design. (Virkeslära)
Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.
2005 (English)In: Hardwood research and utilisation in Europe: new challanges / [ed] Bejo, L., Sopron: University of West Hungary , 2005, 167-171 p.Conference paper, Published paper (Refereed)
Abstract [en]

Edge-glued panels are a very appreciated material, for instance used in cabinet doors or worktops in the kitchen. The surrounding climate for these products is often severe, due to large seasonal variation of the relative humidity in the indoor air. Therefore problems regarding crack formation and form stability often occurs. This paper studies how annual ring orientation of lamellas, lamella width, initial different moisture content in the panels and single lamellas with deviating moisture content are affecting form stability and crack formation of edge-glued oak panels (Quercus robur).

In the study 47 test samples with different characteristics were tested in varying climate during 182 days. The relative humidity was changed approximately every 14 days in the interval 18 to 88 % and temperature 20˚C. The panels were measured each 7 days regarding form stability factors. The crack formation was measured at the beginning and the end of the test.

The evaluation of the results show that the annual ring orientation of the lamellas will be a significant factor regarding the form stability factors width changes and cupping of the panels and also regarding the crack formation. The lamella width is important as a significant factor regarding the surface evenness. Moisture content (initial level) will affect both the form stability and the crack formation. The effect of this factor is dependent on the relation to the climate of the surroundings.

Place, publisher, year, edition, pages
Sopron: University of West Hungary , 2005. 167-171 p.
Keyword [en]
gluing, wood, solid wood panel, hardwood, vertical annual rings
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-20952OAI: oai:DiVA.org:lnu-20952DiVA: diva2:542406
Conference
The 2nd European Conference on Hardwood. September 6, 2005, University of West Hungary, Sopron, Hungary
Available from: 2012-08-29 Created: 2012-07-31 Last updated: 2012-08-29Bibliographically approved

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CiteExportLink to record
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