Sökning: "wood products and sawmills"
Visar resultat 6 - 10 av 17 avhandlingar innehållade orden wood products and sawmills.
6. Automatic measurement of compression wood and spiral grain for the prediction of distortion in sawn wood products
Sammanfattning : Distortion is one of the major obstacles for effective utilisation of wood, especially in the building process, where wood has lost market shares to other materials largely because of the lack of straightness. Bow and spring are often caused by compression wood, while twist is the cause of spiral grain. LÄS MER
7. Computed Tomography and Fingerprint Traceability in the Wood Industry
Sammanfattning : The purpose of the work described in this thesis was to develop techniques based on non-invasive measurements of logs and sawn timber that would increase the profitability of the wood industry in general and sawmills in particular. The work has two main focus areas: computed tomography (CT) scanning of logs and traceability of wood products. LÄS MER
8. Measurement accuracy in the forestry-wood chain
Sammanfattning : A customer-oriented production philosophy and an integrated forestry-wood chain are concepts that researchers and people involved in the forest industry have to deal with in the beginning of this new millennium. Fulfilling the specific requirements for dimension, length or biological features that customers demand for the wood products entails the existence of accurate measurement equipment at each location along the conversion chain. LÄS MER
9. Combining X-ray and 3D scanning of logs
Sammanfattning : In Scandinavia, sawlogs are typically sorted upon arrival at the sawmill. Presorting of sawlogs according to dimension, e.g., using an optical three-dimensional (3D) scanner, is used to make the sawing process more efficient. LÄS MER
10. Process control and production strategies in the sawmill industry
Sammanfattning : The sawmill process itself is not complicated. What makes it complex is thediversity of the raw material, the logs that are processed in the sawmill, and thedivergent production with many different end products. In the sawmill variousnumber of measurement and scanning equipments are installed. LÄS MER