切口处理对落叶松方材高频/真空干燥质量的影响  

Effect of Kerfing Treatment on Radio Frequency/Vacuum Drying Quality of Boxed-heart Larch Lumber

作　　者：构涛[1] 高瑞清[1] 李晓玲[1] 张立宾[1] 何清慧[1] 

机构地区：[1]中国林科院木材工业研究所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》2010年第2期35-37,46,共4页China Wood Industry

基　　金：院所基本科研业务费专项资金(CAFINT2007C09)

摘　　要：对兴安岭落叶松髓心方材采用纵向切口处理后，进行高频／真空干燥试验。结果表明，落叶松髓心方材切口处理，能明显减少表面开裂，总表裂长度降低了39％～50％；对干燥速度、含水率分布以及干燥收缩均无显著影响。After kerfing treatment along the longitudinal direction, boxed-heart larch lumbers was dried through a series of radio frequency vacuum drying schedules. We found that kerfing could considerably decrease surface checks and reduce the average length of surface check by 39%-50%. However, the kerfing treatment didn＇t have any noticeable effects on the drying rate, moisture content distribution dryings or shrinkage.

关 键 词：落叶松 高频真空干燥 髓心方材 切口处理 

分 类 号：S782.31[农业科学—木材科学与技术]