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Effect of laser drilling on impregnability of fir (Abies borisii regis) and spruce (Picea excelsa) wood
Aristotle University of Thessaloniki, Greece.
Aristotle University of Thessaloniki, Greece.
Technological Educational Institute of Thessaly, Greece.
Technological Educational Institute of Thessaly, Greece.ORCID iD: 0000-0002-6909-2025
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2014 (English)In: Wood Structure, Properties and Quality – 2014: 5th RCCWS International Symposium, Moscow State University Press, 2014, 51-56 p.Conference paper, Published paper (Refereed)
Abstract [en]

Fir and spruce wood specimens, 2×2 cm in cross section and 34 cm long, were pre-pared with true radial and tangential surfaces. All lateral surfaces of the wood specimens were drilled by laser beams to a depth of 0,4 cm (1/5 of specimen thickness) with two drilling patterns (distance between holes 1×1 cm and 1×2 cm) in order to improve the wood permea-bility of these refractory to impregnation species. After drilling and assessing the drilling ef-fect on mechanical properties of wood, wood specimens, 10 cm long, were impregnated with oil and CCB preservatives by using vacuum (0,6 mmHg) and pressure (1,5 bar) for 15 minutes and 30 minutes, respectively. The effects of the two laser drilling patterns on impreg-nability of fir and spruce wood specimens were measured and assessed. The results showed that both drilling patterns created by laser beams on all lateral surfaces of fir and spruce wood specimens at 0,4 mm depth improved the retention and penetration of preservatives in fir and spruce wood specimens. This effect was more pronounced in fir than in spruce. Between the two drilling patterns, the pattern with distances between holes 1×1 cm was more effective than that with distances 1×2 cm, in both species tested.

Place, publisher, year, edition, pages
Moscow State University Press, 2014. 51-56 p.
Keyword [en]
fir/spruce wood, laser drilling, impregnability, retention, penetration
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-41834ISBN: 978-5-8135-0625-3 (print)OAI: oai:DiVA.org:lnu-41834DiVA: diva2:800890
Conference
5th RCCWS International Symposium “Wood Structure, Properties and Quality – 2014”, September 22 – 25, Moscow–Mytischi, Russia
Available from: 2015-04-08 Created: 2015-04-08 Last updated: 2017-01-13Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
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  • asciidoc
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