Abstract
The purpose of the present experiments was to find an efficient method to eliminate checking during the drying of hardwood by a vacuum process. An effective solution, found after repeated test runs, involved surface cooling of the timber between each heating and vacuum phase of the drying cycle.
Zussamenfassung
Zweck der vorliegenden Untersuchungen war es, ein wirksames Verfahren zu finden das Risse in Laubhölzern während der Vakuum-Trocknung verhindert. Nach mehreren Probetroknungen wurden eine Problemlösung gefunden, bei welcher eine Kühlung der Holzoberflächen zwischen jede Erwärmungs- und Trocknungsphase eingeschoben wurde.
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Literature
Liang, S. 1981: Wood drying. Nanjing Chinese Forestry Publishing House (in Chinese)
Wang, Y. 1980: Vacuum technology. Sichuan People Publishing House (in Chinese)
Kanagawa, V.; Terasawa, S. 1978: Wood drying with hot plate under vacuum. Wood Industry Vol. 33 (in Japanese)
Oyama, Y. 1981: Wood drying by steaming and vacuum process. Hokkaido Forest Prod. Res. Inst. Report No. 353 (in Japanese)
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Help and advice from F.J. Christensen and A.N. Rozsa of the CSIRO, Division of Chemical and Wood Technology, Australia, are gratefully acknowledged
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Zhao, S. A new approach to eliminate checking in hardwood dried by a vacuum drying method. Holz als Roh-und Werkstoff 46, 331–334 (1988). https://doi.org/10.1007/BF02615665
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DOI: https://doi.org/10.1007/BF02615665