摘要
木材的物理性质是了解木材最直观、简便的基本性质,本文研究了中高温热处理对赤桦、榉木的密度、干缩性与湿胀性的影响,结果表明:随温度和时间变化,其密度、干缩性与湿胀性均有不同程度的降低,并且在120~150℃下降趋势平缓,从160℃开始急剧下降;通过多元线性回归分析,得到气干体积干缩率、饱水体积湿胀率与温度、时间的回归模型。
The physical properties of wood are the basic properties to intuitively understand the wood.Themedium-high temperature heat treatment on density,shrinkage and swelling of red birch and beech woodwere analyzed.The results showed that the properties decreased with the variety of temperature and time,in the scope of 120 ~ 150 ℃ decreased slowly,but from the beginning of the 160 ℃ declined sharply.Byusing multivariate linear regression analysis,the regression models between shrinkage efficient of air-dried volume and swelling ratio of full water volume with temperature and time were established.
作者
于书贤
吴智慧
王雪花
YU Shuxian;WU Zhihui;WANG Xuehua(College of Furnishings and Industrial Design,Nanjing Forestry University,Nanjing 210037,China)
出处
《家具》
2018年第2期28-30,35,共4页
Furniture
基金
国家林业公益性行业科研专项(201404501)
江苏省林业三新工程项目(LYSX[2014]04)
关键词
中高温热处理
密度
干缩性
湿胀性
回归模型
medium-high temperature heat treatment
density
shrinkage
swelling
regression model
