文献类型：期刊文献

中文题名：桉木单板出材率的研究

英文题名：Effects of species,diameter and processing equipment on veneer recovery of Eucalyptus spp.

作者：孙锋[1] 周永东[1] 李晓玲[1] 吕建雄[1] 韩晨静[1] 詹满军[2]

第一作者：孙锋

机构：[1]中国林业科学研究院木材工业研究所,国家林业局木材科学与技术重点实验室;[2]广西丰林木业集团股份有限公司

年份：2013

卷号：35

期号：4

起止页码：128-133

中文期刊名：北京林业大学学报

外文期刊名：Journal of Beijing Forestry University

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：林业公益性行业科研专项(201104003-02)

语种：中文

中文关键词：桉木;单板;出材率;径级;加工设备

外文关键词：Eucalyptus spp. ; veneer; recovery; diameter class; processing equipment

分类号：S781

摘要：为提高桉木单板出材率,合理利用桉树木材,采用BQK1813C型无卡轴旋切机对尾巨桉进行旋切试验、BXQS1813A型无卡轴旋切机对6种桉木进行旋切试验。结果表明:桉木径级对单板综合出材率影响显著,树种和加工设备对其影响不显著;设备旋切后剩余木芯的大小对单板出材率影响较大。尾巨桉径级较小(12cm以内)时,综合出材率随径级增加缓慢增加;径级为12cm时,单板综合出材率最大,为77.65%。其他5种桉木单板综合出材率随原木径级的增加而增加,在径级达到12cm后趋于稳定;柳桉的单板综合出材率稳定在(77.98±1.44)%,巨桉稳定在(81.73±2.20)%,大花序桉稳定在(83.75±2.03)%,邓恩桉稳定在(75.01±0.45)%,粗皮桉稳定在(72.12±0.62)%。6种桉木的A+B等级单板的出材率占单板综合出材率的74.91%以上。因此,建议用于单板旋切的桉树在径级为12cm左右时进行采伐,并采用旋切后木芯直径较小的旋切设备作业,这将会产生较好的经济效益。
To improve the veneer recovery of Eucalyptus spp. and rational utilize its wood, peeling experiments of E. urophyUa x grandis with spindle-less lathes of BQK1813C and six species of Eucalyptus logs with spindle-less lathes of BXQS1813A were conducted and analyzed in this paper. The results showed that the log＇s diameter had significant influence on veneer recovery, while species and processing equipment had little influence. The effects on veneer recovery were mainly from the volume of left wood core. The veneer recovery of Eucalyptus spp. firstly increased and then stabilized with the increasing of log＇s diameter, except E. urophylla x grandis, since the log＇s diameter was within 12 cm, its veneer recovery showed a slowly increasing trend, and the veneer comprehensive recovery increased to a maximum value of 77.65% with diameter as 12 cm. When the log＇s diameter was around 12 cm, the veneer recovery of E. salig stabilized at （77.98 ±1.44）%, E. grandis＇s at （81.73 ±2.20）%, E. cloeziana＇s at （83.75 ± 2.03）%, E. dunnii＇s at （75.01 _±0.45）% and E. pellita＇s stabilized at （72.12 ±0.62）%. The veneer recovery of grade A ± B of six species of Eucalyptus logs accounted for more than 74.91% of the veneer comprehensive recovery, so the economic benefits will be better if the logs with soft properties for veneer usage are cut with the diameter around 12 cm and use the peeling equipment which produces smaller wood core.