文献类型：期刊文献

中文题名：加压热处理对表层压缩杨木变形回弹的影响

英文题名：Effect of Pressurized Heat Treatment on Spring-back of Surface Compressed Poplar Wood

作者：高志强[1,2] 张耀明[1,2] 吴忠其[3] 王艳伟[3] 李任[1,2] 黄荣凤[1,2]

第一作者：高志强

机构：[1]中国林科院木材工业研究所;[2]国家林业局木材科学与技术重点实验室;[3]久盛地板有限公司

年份：2017

卷号：31

期号：2

起止页码：24-28

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：木竹产业技术创新战略联盟科研计划课题“木材表层压缩增强及颜色调控关键技术”(TIAWBI2016-07)

语种：中文

中文关键词：表层压缩木材;厚度变化;变形回弹率;加压热处理;常压热处理

外文关键词：surface compression; thickness change; spring-back; compressive deformation; pressurized steam treatment; normal pressure steam treatment

分类号：S792.11;S781.7

摘要：以水热控制法对人工林毛白杨木材进行间歇式压缩,获得表层密度1.0 g/cm^3、芯部密度基本不变的表层压缩木;再在常压和0.3 MPa压力下,分别对表层压缩木材进行热处理,检测热处理后木材的变形回弹率。结果表明,随着热处理温度升高,表层压缩木材变形回弹率呈降低趋势;加压热处理比常压热处理,对表层压缩木材的变形固定效果更优。200℃、0.3 MPa加压热处理,能够使杨木压缩材的厚度变化率降低67.38%。
Poplar specimens（Populus tomentosa）from plantation grown trees were intermittently pressed by a hydro-thermal method to make surface compressed wood.The surface density of the wood was 1.0 g/cm3 with unchanged inner density.The surface compressed wood was then treated with 0.3 MPa of pressurized steam and normal pressure steam, respectively.It showed that the spring ratio of compressive deformation of the wood decreased as treating temperature increased and that the wood treated with pressurized steam performed better than the wood treated with normal pressure steam as far as fixation of compressive deformation was concerned.The thickness change of the wood could be decreased by 67.38% by treatment under 200 ℃ and 0.3 MPa pressure.