桉材热处理及其渗透性能的改善

刘元

doi:10.19455/j.mcgy.1994.03.007

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桉材热处理及其渗透性能的改善
Heat treatment of Eucalyptus wood and its permeability improvement
1. 中南林学院
1994年第3期
DOI： 10.19455/j.mcgy.1994.03.007

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[1]刘元.桉材热处理及其渗透性能的改善[J].木材工业,1994(03):30-33+44.

Liu Yuan. Heat treatment of Eucalyptus wood and its permeability improvement[J]. China Wood Industry, 1994,(3).
[1]刘元.桉材热处理及其渗透性能的改善[J].木材工业,1994(03):30-33+44. DOI： 10.19455/j.mcgy.1994.03.007.

Liu Yuan. Heat treatment of Eucalyptus wood and its permeability improvement[J]. China Wood Industry, 1994,(3). DOI： 10.19455/j.mcgy.1994.03.007.

摘要

本文以高温软化和瞬时降压之方法对三种桉材（Ｅｕｃａｌｙｐｔｕｓ）进行了汽蒸热处理试验。结果表明：除赤桉（Ｅ·Ｃａｍａｌｄｕｌｅｎｓｉｓ）外，热处理后的桉材导管壁上纹孔膜出现了不同程度的破裂，甚至脱落为空洞。其渗透性能得到了较明显的改善。其中以１４０℃、５ｈ的热处理效果为佳。

Abstract

In this paper,three species of Eucalyptus wood were subjected toheat treatment by means of softening with hight temperature and lowering pre-sure instantaneously,The result showed that,except longbeak Eucalyptus,after heat treatment pit membrances on the vessel walls of Eucalyptus woodgot broken to some extent,or even holes appeared as the membrances broppedout.Thus,permeability of the treated、 wood got improved noticeably.Of thetested conditions,140℃ and 5 hours treatment Produced the best result.