| 吸湿范围内木材含水率对渗透性影响的研究 |
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| 引用本文： | 王金满,刘一星.吸湿范围内木材含水率对渗透性影响的研究[J].东北林业大学学报,1991,19(1):15-21. |
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| 作者姓名： | 王金满 刘一星 |
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| 作者单位： | 东北林业大学
(王金满，刘一星)，东北林业大学(戴澄月) |
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| 摘 要： | 本文研究了我国东北四种常见木材在吸湿范围內含水率对渗透性影响的变化规律,得出了变化规律的数学模型,从木材与水分作用关系阐述了含水率对木材渗透性影响的机理。结果表明:①在吸湿范围内,木材渗透性与含水率成二次函数关系;②木材含水率在吸湿范围内,横向渗透性存在极值点;③木材纹孔膜上微孔的数目与半径随含水率的提高而减小。
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| 关 键 词： | 木材 含水率 渗透性 物理性质 |
STUDY ON THE EFFECTS OF WOOD MOISTURE CONTENT ON PERMEABILITY IN THE HYGROSCOPIC RANGE |
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| Wang Jinman Liu Yixing Dai Chengyue.STUDY ON THE EFFECTS OF WOOD MOISTURE CONTENT ON PERMEABILITY IN THE HYGROSCOPIC RANGE[J].Journal of Northeast Forestry University,1991,19(1):15-21. |
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| Authors: | Wang Jinman Liu Yixing Dai Chengyue |
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| Abstract: | In this paper, the relationship was studied between the permeability of Pinus koraiensis, Larix gmelinii, Betula platyphylla and Populus davidiana and moisture content of wood in the hygroscopic range. The mathematics model of variation law has been obtained and the effect mechanism of wood moisture on permeability was expounded from the relationship between wood and water. The results are as Follows: (1) The relationship between wood permeability and the moisture content is in twice curve function in the hygroscopic range. (2) There is a peak value in tangential permeability. (3) The numbcr of openings per cm~2 of cross section and pit-opening average radii reduces by the increasing of wood moisture content. |
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| Keywords: | Physical properties of wood Permeability Moisture content |
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