Effects of Heat Treatment on Dimension Stability of Larch Pallet Decks
Xue-Chun Yang, Bing Wang, Jin-Zhuo Wu, Xiao-Qi Xing, Shi-Jun Yang
(College of Engineering and Technology, Northeast Forestry University, Harbin 150001, China)
Abstract:
The useful life of wooden pallets is lower because of the defects in lumbers. The quality of lumber can be significantly enhanced by heat treatment. In this paper, the larch pallet decks samples were heat-treated under the conditions of different time and temperatures. The quantity of water uptake has reduced 16.8％ under the condition of 250 ℃ for 150 min. The resistance of water absorption efficiency increases 165.34％ under the condition of 175 ℃ for 90 min. The anti-shrink efficiency increases 72.08％ under the condition of 250 ℃ for 90min. The results showed that the dimension stability of larch panels can be improved by heat treatment. The condition of 250 ℃ for 180 min is the best heat treating condition to improve the dimension stability.
Key words: larch pallet heat treatment resistance of water absorption efficiency anti-shrink efficiency dimension stability
DOI：10.11916/j.issn.1005-9113.2013.03.012
Clc Number:S7
Fund:
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Effects of Heat Treatment on Dimension Stability of Larch Pallet Decks
本站小编 哈尔滨工业大学/2019-10-24
相关话题/Effects Heat Treatment Dimension Stability
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