桉树单板层积材的制造工艺和主要性能  

Manufacturing Technology and Main Properties for Laminated Veneer Lumber of Eucalyptus

作　　者：余养伦[1] 于文吉[1] 王戈[2] 

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091 [2]国际竹藤网络中心,北京100102

出　　处：《林业科学》2007年第8期154-158,共5页Scientia Silvae Sinicae

基　　金：国家林业局"948"项目"桉树人工林木材材性与实木加工利用技术的引进"(2000-04-13)

摘　　要：The hot-press temperature curves were researched and effects of hot-pressing temperature,thickness of veneer and the numbers of layer on mechanical properties of laminated veneer lumber(LVL)were analyzed with emphasis in the paper.Results showed that there was positive relationship between hot-pressing temperature and modulus of elastic(MOE);the modulus of rupture(MOR)of LVL was best when manufactured at 160 ℃.When the thickness of veneers was 3.25 mm the LVL usually destroyed due to veneer tearing;while when the thickness of veneers was 1.70 mm it easily splited in adhesive layer;the mechanical properties of LVL were best when the thickness of veneers was 1.70 mm;the 3 multinomial degrees of fitting the numbers of layers with MOE and MOR of Eucalyptus LVL matched very well,the R2 value were 0.951 6 and 0.981 2,respectively.The hot-press temperature curves were researched and effects of hot-pressing temperature,thickness of veneer and the numbers of layer on mechanical properties of laminated veneer lumber（LVL）were analyzed with emphasis in the paper.Results showed that there was positive relationship between hot-pressing temperature and modulus of elastic（MOE）;the modulus of rupture（MOR）of LVL was best when manufactured at 160 ℃.When the thickness of veneers was 3.25 mm the LVL usually destroyed due to veneer tearing;while when the thickness of veneers was 1.70 mm it easily splited in adhesive layer;the mechanical properties of LVL were best when the thickness of veneers was 1.70 mm;the 3 multinomial degrees of fitting the numbers of layers with MOE and MOR of Eucalyptus LVL matched very well,the R^2 value were 0.951 6 and 0.981 2,respectively.

关 键 词：桉树 单板层积材 静曲强度 弹性模量 

分 类 号：TS653.2[轻工技术与工程]