广州地区木材平衡含水率及吸湿滞后的研究

›› 1993, Vol. 29 ›› Issue (2): 139-144.

广州地区木材平衡含水率及吸湿滞后的研究

林伟奇肖羽柏陈莉

中南林学院,株洲412006

收稿日期:1991-10-31 修回日期:1900-01-01 出版日期:1993-03-25 发布日期:1993-03-25

STUDIES ON THE EQUILIBRIUM MOISTURE CONTENT AND MOISTURE ABSORPTION HYSTERESIS OF WOOD IN GUANGZHOU REGION

Lin Weiqi,Xiao Yubai,Chen Li

Central South Forestry College, Zhuzhou 412006

Received:1991-10-31 Revised:1900-01-01 Online:1993-03-25 Published:1993-03-25

摘要/Abstract

摘要： 根据1972-1974年在广州测定的数据,通过电子计算机进行运算,得出W_e=-2.657557-0.01391679t+0.2315497φ线性回归方程式。并用北京、哈尔滨、十堰、厦门等地的平衡含水率实测值与线式计算值、现行教科书中的曲线回归方程式进行比较。这些材料说明,在表示木材平衡含水率与周围大气温湿度之间变化规律时,线性回归方程优于曲线回归方程。另外,还对木材吸湿和解吸进行具体地论述。

关键词: 木材平衡含水率, 吸湿滞后, 线性回归方程, t-φ-W_e图。

Abstract: The equilibrium moisture contents (EMC) of wood varies with the relative humidity and temperature of the surrounding air. On the basis of the measured data in Guangzhou during 1972-1974, the following linear regressionequation has been obtained: W_e=2.657557-0.01391679t+0. 2315497φ Comparing the measured data of the EMC of Beijing, Harbin, Shiyan Xiamenand so forth with the caculated values by the above linear regression equationand curvilinear regression equation in the textbook, it is considered that thelinear reqression equation is more suitable than the curvilinear equation toexpress the relationship between EMC and condition of air. The author have also described the moisture absorption as well as desorption of wood in detail.

Key words: Equilibrium moisture content of wood, Moisture absorption hysteresis, Linear reqression equation, Graph of t-φ-W.

林伟奇肖羽柏陈莉. 广州地区木材平衡含水率及吸湿滞后的研究[J]. , 1993, 29(2): 139-144.

Lin Weiqi;Xiao Yubai;Chen Li. STUDIES ON THE EQUILIBRIUM MOISTURE CONTENT AND MOISTURE ABSORPTION HYSTERESIS OF WOOD IN GUANGZHOU REGION[J]. , 1993, 29(2): 139-144.

[1]	蔡则谟. 海口地区的木材平衡含水率[J]. , 1995, 31(3): 284-287.
[2]	陈承德陈道轩林金星. 厦门地区木材平衡含水率的研究[J]. , 1990, 26(2): 189-195.