Journal of the Korea Furniture Society (한국가구학회지)
- Volume 19 Issue 4
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- Pages.294-299
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- 2008
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- 1226-3109(pISSN)
Effect of Pretreatments and Drying Methods on Abnormal Shrinkage of Wood
- Kang, Ho-Yang (College of Agriculture, Chungnam National University) ;
- Lee, Min-Gyoung (College of Agriculture, Chungnam National University)
- Published : 2008.07.25
Abstract
Collapse is an abnormal shrinkage resulting in uneven, rough surfaces and/or warping of sawn timber. The maximum abnormal shrinkages of the oak and persimmon specimens were obtained by the quasi-equilibrium drying and were compared with the other drying methods. The effect of steaming and freezing treatments on the shrinkage of wood was also investigated. The Quasi-equilibrium drying used in this study was proved as a good tool to make the maximum abnormal shrinkage of wood. The maximum abnormal volumetric shrinkage possibly caused by collapse could be 16.3% and 14.3% for the oak and persimmon specimens, respectively. In general the steaming-treated specimens shrank less than the controls for the oak specimens, but did more for the persimmon specimens. The volumetric shrinkages of the freezing-treated specimens were more various between the drying methods than those of the control and steaming-treated specimens.
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