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Scanning techniques as tools for integration in the wood conversion chain: some industrial applications
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.
2005 (English)In: Broad spectrum utilisation of wood: proceedings of the COST Action E 44 Conference : June 14th - 15th 2005, Vienna, Austria / [ed] Alfred Teischinger, Wien: Institutes für Holzforschung, Universität für Bodenkultur Wien , 2005Conference paper, Published paper (Refereed)
Abstract [en]

The market makes lot of different demands on sawn wood products. There are requirements regarding strength, straightness, durability, aesthetic appearance, etc. Most of these demands can be fulfilled by the inherent properties of the trees in the forest. The challenge is to utilize the wood properties to fulfil the market demands in an efficient way. The raw material has to be selected so every customer gets the right piece of wood with the required properties. In order to achieve this, the raw material has to be characterized with different scanning techniques in several steps before and during the breakdown process. In this presentation some examples and experiences from industrially implemented scanning techniques will be described. We can today, after some years of R&D efforts, see how X-ray LogScanners are implemented in the industry. So far they are used for measurement of diameter under bark, internal knot structure, annual ring width, heartwood content and commodity grades. The full potential of this technique is, however, not being fully utilized yet. Equipment for measurement of spiral grain on logs and sawn wood has also been implemented industrially. It has been proven that with the aid of this equipment boards that will twist during drying can be sorted out and treated separately, thus enabling production of straighter timber. The third type of equipment that will be presented is a heartwood scanner. With this scanner, sawmills select Scots pine planks with high heartwood content that are suitable for applications where improved durability is required. These examples show that scanning technology is a key factor for a successful integration between market and forest.

Place, publisher, year, edition, pages
Wien: Institutes für Holzforschung, Universität für Bodenkultur Wien , 2005.
Series
Lignovisionen ; 9
National Category
Other Mechanical Engineering
Research subject
Wood Technology
Identifiers
URN: urn:nbn:se:ltu:diva-38165Local ID: c7ad4110-0646-11dc-b09b-000ea68e967bOAI: oai:DiVA.org:ltu-38165DiVA, id: diva2:1011664
Conference
COST Action E 44 Conference : 14/06/2005 - 15/06/2005
Note
Godkänd; 2005; 20070519 (ysko)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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Grönlund, AndersGrundberg, StigOja, JohanNyström, Jan

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Citation style
  • apa
  • harvard1
  • ieee
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Language
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  • Other locale
More languages
Output format
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