余养伦,于文吉,江泽慧,王天佑

• 1:中国林科院木材工业研究所
• 2:中国林科院木材工业研究所
• 3:中国林科院木材工业研究所
• 4:中国林科院木材工业研究所 北京100091

摘要(Abstract)：

基于单板层积材热压升温曲线特征与马尔萨斯(Malthus)模型特征的相似性,通过类比方法,建立温度与时间的数学模型,采用SPSS程序的非线性拟合方法,求得升温速率系数k值;通过试验验证了模型的准确性,对比了理论与试验的温度曲线,并对结果进行了分析与讨论。结果表明,单板层积材热压升温曲线试验与理论曲线的R2值在0.95以上,单板层积材热压升温模型具有较高的可信度。k值与单板胶层所在位置的层数x呈线性关系,线性方程为k=-0.0019x+0.0199,R2值为0.999;k值与板坯层数x呈线性关系,线性方程为k=-0.0022x+0.0358,R2值为0.941。

关键词(KeyWords)： 单板层积材;升温曲线;数学模型;拟合

Abstract:

Keywords:

基金项目(Foundation): 国家林业局“948”项目(2000-04-13)

作者(Author): 余养伦,于文吉,江泽慧,王天佑

参考文献(References)：

• [1]Dai C,Steiner P R.Compression behavior of randomlyformed woodflake mats[J].Wood and Fiber Sci,1993,25(4):349-358.
• [2]Strickler MD.The effect of press cycles and moisture content on properties of Douglas-fir flake-board[J].Forest Prod J,1959,9(7):203-207.
• [3]Bodig J,Jayne B A.Mechanics of wood and wood composites[W].Van Bostrand Reinhold Co,Inc NewYork,1982:712-718.
• [4]TABARSAT,CHUI Y H.Effect of hot-pressing on properties of white spruce[J].Forest Prod J,1997,47(5):71-76.
• [5]Hillis WE.Hightemperature and chemical effects on wood stability-PartⅠGeneral consideration[J].Wood Sci&Tech,1984,18(3):281-293.
• [6]王补宣.多孔介质中的对流传热传质[J].西安交通大学学报,1994,28(5):51-58.WANG Bu-xuan.Convective heat and mass transfer in porous media[J].Journal of Xi’an Jiaotong University,1994,28(5):51-58.
• [7]Zombori G B,Kamke F A.Simulation of the mat formation process[J].Wood Fiber Sci,2001,33(4):564-579.
• [8]林铭,谢拥群,杨庆贤.木材热导率内在规律的理论研究[J].福建林学院学报,2004,24(1):25-27.LIN Ming,XIE Yong-qun,YANG Qing-xian.Inherent lay of woodthermal conductivity[J].Journal of Fujian College of Forestry,2004,24(1):25-27.
• [9]杨庆贤.木材热学参数的理论表达式[J].福建林学院学报,2001,21(4):329-331.YANG Qing-xian.Theoretical expressions of woodthermal parameter[J].Journal of Fujian College of Forestry,2001,21(4):329-331.
• [10]杜朝刚,陈天全,常建民.刨花板热压过程中的传热传质研究现状和展望[J].林产工业,2004,31(5):9-14.DUChao-gang,CHENTian-quan,CHANGJian-min.Current situation on research of heat and mass transfer in particleboard during hot pressing[J].ChinaForest Products Industry,2004,31(5):9-14.
• [11]王逢瑚,李鹏,陶毓博.单板层积材热压导热数学模型和可视化数值解的研究[J].材料热处理学报,2005,26(1)90-92.WANGPeng-hu,LI peng,TAO Yu-bo.Study on heat transfer model and visualization of numerical algorithmabout wood veneer duringhot-pressing[J].Transactions of Materials and Heat Treatment,2005,26(1)90-92.
• [12]Leon G,Cruz-de-Leon J,Villasenor L.Thermal characterization of pine wood by photoacoustic and photothermal techniques[J].Holzals Roh-und Werkstoff,2000,58(4):241-246.
• [13]Sand U,Sandberg J,Bel Fdhila R.Two-phase transport model for the pyrolysis process of a vertical wood cylinder,including the surrounding flowfield[J].International Journal of Green Energy,2006,3(1):63-78.
• [14]周义仓,赫孝良.数学建模实验[M].西安:西安交通大学出版社,1999:274-284.
• [15]江泽慧,余养伦,于文吉,等.桉树木材生产单板层积材研究[J].林业科学,2007.JIANGZe-hui,YUYang-lun,YU Wen-ji,et al.Study on manufacturinglaminated veneer lumber of eucalyptus[J].Scientia Silvae Sinicae,2007.

文章评论(Comment)：