节子对桉木吸水及解吸特性的影响

Influence of Knots on Water Absorption and Desorption Characteristics of Eucalyptus

桉木是我国重要的人工速生材,但在生长过程中不可避免会产生缺陷。木节是最为普遍的天然缺陷之一,它虽然是木材自然生长形成,但对木材的性质、外观、加工方式、生产工艺等产生了巨大的影响。本研究以尾巨桉(Eucalyptus urophylla×E.grandis)为试材,先后进行吸水、气干和绝干试验,主要从含水率、密度、质量、体积等方面研究木材节子对木材吸水及解吸的影响,为缺陷木材的加工处理提供参考。

Eucalyptus is an important fast-growing wood species in China,but it inevitably has some defects in the process of growth.A knot is one of the most common natural defects.Although it is formed during the natural growth of Eucalyptus,it has a great influence on the quality,appearance,processing mode and production technology of wood.Using Eucalyptus urophylla×E.grandis as test material in the research,the effects of knots on wood were studied in terms of moisture content,density,mass,volume,etc.By subsequently performing water absorption,air drying and absolute drying tests,providing reference for the processing and treatment of defective wood.