水蒸气热处理对人工林杉木性质的影响  

Influence of Heat Treatment by Steam on Wood Properties of Chinese Fir from Plantations

作　　者：江京辉[1,2] 吕建雄[1,2] 周永东[1,2] 赵有科[1,2] 黄荣凤[1,2] 

机构地区：[1]中国林科院木材工业研究所 [2]国家林业局木材科学与技术重点实验室,北京100091

出　　处：《木材工业》2015年第2期13-16,41,共5页China Wood Industry

基　　金："十二五"国家科技支撑计划课题"家装材与室外材增值制造技术研究与示范"(2012BAD24B02)

摘　　要：对人工林杉木分别采用常压过热水蒸气、加压过热水蒸气以及饱和水蒸气进行热处理,测试热处理材的尺寸稳定性、力学强度与颜色变化。结果表明,常压过热水蒸气热处理材的颜色变化最小;加压过热水蒸气热处理材的尺寸稳定性提高幅度最大,力学强度降幅较低;饱和水蒸气热处理材的端裂严重,力学强度下降最多,表面颜色变深。Chinese fir （Cunningharnia lanceolata） plantation lumber was treated with steam at atmospheric pressure, pressurized with super-heated steam and saturated water vapor, respectively. The dimensional stability, mechanical properties and color change of the treated samples were evaluated. The results showed that color changed the least for the samples treated with steam at atmospheric pressure, while the dimensional stability of the samples treated with pressurized super-heated steam had the greatest increase but the mechanical properties decreased. The samples treated with saturated water vapor, though, caused darkest color, the worst splits and the lowest strength.

关 键 词：人工林 杉木 热处理 水蒸气 木材性质 

分 类 号：S781.7[农业科学—木材科学与技术] S791.27[农业科学—林学]