南京林业大学学报（自然科学版）Issue(3)：119-124,6.DOI:10.3969/j.issn.1000-2006.2015.03.022
臭冷杉表面密实化及后期高温热处理工艺
Surface densification and high temperature hydrothermal post treatment of the Abies nephrolepis lumber
摘要
Abstract
The objective of this article was to provide theoretical bases for the value⁃added processing technology of soft⁃wood plantation timbers, as well as to develop innovative wooden flooring materials. Abies nephrolepis sapwood lumbers with thickness of 35 mm was surface⁃densified to two degrees of compression at 160 ℃ and 180 ℃ by using a wooden composites heated press. The densified specimens were then hydrothermally post⁃treated at 180℃ and 200℃. To study the influence of the degree of compression, hot⁃pressing temperature and high⁃temperature hydrothermal post⁃treatment on the set⁃recovery of surface densified floorings, specimens were subjected to water soaking plus oven⁃drying cycles. The actual influential mechanisms of these factors over the recovery of surface compressive sets were discussed herein. Under these specified hot⁃pressing technique parameters, the actual densification areas of Abies nephrolepis sapwood lum⁃bers lies two millimeters below wood surfaces and the densification plus reinforcement of flooring surfaces has been a⁃chieved accordingly. Being hydrothermally treated at 200℃ for one hour, the deformation recovery ratios of surface⁃den⁃sified specimens was just 28.6% of that of control specimens, highlighting that the hydrothermal post⁃treatment was a ef⁃ficient technology, which could improve the deformation stability of surface⁃densified solid wood.关键词
臭冷杉/表面密实化/高温热处理/压缩率/压缩变形恢复Key words
Abies nephrolepis/surface densification/high-temperature hydrothermal treatment/degree of compression/compressive set recovery分类
农业科技引用本文复制引用
战剑锋,曹军,顾继友,张馨然,陈伟,刘卓杰,刘彬,马恒建..臭冷杉表面密实化及后期高温热处理工艺[J].南京林业大学学报（自然科学版）,2015,(3):119-124,6.基金项目
中国博士后科学基金项目（2012M510906）；中央高校基本科研业务费专项资金项目（DL13CB17）；东北林业大学大学生创新训练项目 （）
