热处理改性木材的性能分析  Ⅰ.热处理材的物理力学性能

李惠明; 陈人望; 严婷

doi:10.19455/j.mcgy.2009.02.015

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热处理改性木材的性能分析 Ⅰ.热处理材的物理力学性能
Physical and Mechanical Properties of Heat-Treated Lumber Ⅰ.
1. 上海大不同木业科技有限公司
2009年23卷第2期页码：43-45
DOI： 10.19455/j.mcgy.2009.02.015

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[1]李惠明,陈人望,严婷.热处理改性木材的性能分析 Ⅰ.热处理材的物理力学性能[J].木材工业,2009,23(02):43-45.

LI Hui-ming, CHEN Ren-wang, YAN Ting. Physical and Mechanical Properties of Heat-Treated Lumber Ⅰ.[J]. China Wood Industry, 2009,23(2):43-45.
[1]李惠明,陈人望,严婷.热处理改性木材的性能分析 Ⅰ.热处理材的物理力学性能[J].木材工业,2009,23(02):43-45. DOI： 10.19455/j.mcgy.2009.02.015.

LI Hui-ming, CHEN Ren-wang, YAN Ting. Physical and Mechanical Properties of Heat-Treated Lumber Ⅰ.[J]. China Wood Industry, 2009,23(2):43-45. DOI： 10.19455/j.mcgy.2009.02.015.

摘要

通过对针叶树材和阔叶树材分别进行热处理改性试验,探讨热处理工艺对木材物理及力学性能的影响。试验结果表明:试材颜色均随热处理温度的提高而加深,尺寸稳定性得到明显改善;试材的抗压强度、弹性模量呈增加趋势,但静曲强度和冲击韧性有所降低。为开发适宜的热处理工艺和生产实践提供参考。

Abstract

Heat treatment is a commonly-used method to improve the performance of lumber. In this paper,physical and mechanical properties of dimensional lumber of 4 selected Chinese species,treated under 180 ℃and 230 ℃,were evaluated. The results showed that the color of treated lumbers became darker with the increasing temperature. The dimensional stability,compression strength,and modulus of elasticity （MOE） showed considerable improvement. However,modulus of rupture （MOR） and impact resistance decreased when the treated temperature increased.