Size distribution of wood particles for extruded particleboard production determined by sieve analysis and image analysis-based particle size measurement
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Three wood particle types of different origin [knife ring flaker (KRF), hammer mill (HM), sawmill plant] for the manufacture of extruded particleboards were characterized by conventional sieve analysis and image analysis-based particle size measurement. Sieve analysis was performed following two different approaches (on-site, off-site). Image analysis-based measurement was done applying the so-called QICPIC apparatus from Sympatec GmbH (Clausthal-Zellerfeld, Germany). It was found that the size distributions of particles derived from timber production (sawdust) were different in comparison to those of KRF or HM manufacture.
The authors would like to thank Mr. Axel Ganster for providing particle materials and providing data from on-site sieve analysis. We also thank all those persons and companies who where engaged in supporting this master’s thesis. Mr. Hannes Wagner is thanked for performing off-site sieve analysis at the Thünen Institute of Wood Research. The Company Sympatec GmbH (Clausthal-Zellerfeld, Germany) is acknowledged for the cooperative collaboration in processing the commissioned measurement job.
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