Study on the Drying Schedule for 40 mm-Thick <italic style="font-style: italic">Acacia melanoxylon</italic> Lumber

Fan ZHOU; Xin GAO; Zong-ying FU; Xiang WENG; Yong-dong ZHOU

doi:10.12326/j.2096-9694.2020065

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Study on the Drying Schedule for 40 mm-Thick Acacia melanoxylon Lumber
1.Research Institute of Wood Industry， Chinese Academy of Forestry， Beijing 100091， China
Vol. 35, Issue 4, Pages: 36-39(2021)
DOI： 10.12326/j.2096-9694.2020065

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周凡,高鑫,付宗营等.40 mm厚黑木相思锯材干燥工艺研究[J].木材科学与技术,2021,35(04):36-39.

ZHOU Fan,GAO Xin,FU Zong-ying,et al.Study on the Drying Schedule for 40 mm-Thick Acacia melanoxylon Lumber[J].Chinese Journal of Wood Science and Technology,2021,35(04):36-39.
周凡,高鑫,付宗营等.40 mm厚黑木相思锯材干燥工艺研究[J].木材科学与技术,2021,35(04):36-39. DOI： 10.12326/j.2096-9694.2020065.

ZHOU Fan,GAO Xin,FU Zong-ying,et al.Study on the Drying Schedule for 40 mm-Thick Acacia melanoxylon Lumber[J].Chinese Journal of Wood Science and Technology,2021,35(04):36-39. DOI： 10.12326/j.2096-9694.2020065.

摘要

对我国40 mm厚黑木相思锯材干燥工艺进行研究，为其实际干燥生产提供参考。结果表明：黑木相思锯材由初含水率105.9%干燥至终含水率9.8%，干燥用时453 h（18.9 d）。干燥锯材的平均最终含水率满足GB/T 6491—2012《锯材干燥质量》中二级锯材干燥质量指标要求，干燥均匀度、厚度上含水率偏差、残余应力以及可见干燥缺陷满足一级质量指标的要求。

Abstract

The drying schedule for Chinese ,Acacia,melanoxylon, lumber with 40 mm in thickness was studied to serve as a scientific basis for the practical production of wood drying. The results showed that the drying process lasted for 453 h (18.9 d) when the moisture content of wood decreased from 105.9% to 9.8%. The final average moisture content met the requirements of the 2,nd, in the national standard GB/T 6491—2012 ",Drying quality of sawn timber,", while the drying evenness, the moisture content deviation in thickness, the residual drying stress, and visible drying defects of the dried lumbers all met the requirements of the 1,st, grade of GB/T 6491—2012.

关键词

黑木相思干燥工艺干燥速率干燥质量

Keywords

Acacia melanoxylondrying scheduledrying speeddrying quality

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