Sökning: "Träfysik"
Visar resultat 6 - 10 av 20 avhandlingar innehållade ordet Träfysik.
6. Controlling microwave heating and its effect on the properties of wood
Sammanfattning : Drying wood with microwave energy is not so common, but could be a complement to conventional air circulation drying due to the possibility of drying wood faster than with conventional drying methods with preserved quality. An industrial-scale, on-line microwave drier for wood components is under development at the Division of Wood Physics. LÄS MER
7. Microwave treatment of wood
Sammanfattning : Drying wood using microwave energy is not very common, but could be a complement to conventional air-circulation drying due to the possibility to dry wood faster than the conventional drying methods with preserved quality. Furthermore, this technique could be used to condition boards with too high moisture content gradient. LÄS MER
8. Heat treatment of solid wood : effects on absorption, strength and colour
Sammanfattning : Wood is a useful construction material, but it has less desirable properties such as poor durability and poor dimensional stability. These problems can be reduced by using various chemical treatments. Increased environmental awareness has raised the demand for more environmentally friendly methods. LÄS MER
9. Strength and colour response of solid wood to heat treatment
Sammanfattning : Heat treatment is a method for improving the durability and dimensional stability of wood. The treatment method used in this work is called Thermo Wood and is industrially applied in Finland. In 2004 production was 31146 m3. The method involves heating wood in a steam atmosphere where the heat causes chemical changes in the structure of the wood. LÄS MER
10. Physical and morphological aspects of linseed oil impregnated pine (Pinus Sylvestris)
Sammanfattning : This work has investigated the possibilities of increasing wood durability using environmentally friendly chemicals. The chemical used in this study was linseed oil. The study also investigated flow paths during impregnation in pine and spruce. LÄS MER