文献类型：期刊文献

中文题名：进口辐射松木材物理与力学性能评价

英文题名：Physical and Mechanical Properties of Imported Pinus radiata Wood

作者：吴艳华[1,2] 孙海燕[1] 任海青[1] 周永东[1] 吴章康[2] 王玉荣[1]

第一作者：吴艳华

机构：[1]中国林科院木材工业研究所,北京100091;[2]西南林业大学材料工程学院,云南昆明650224

年份：2019

卷号：33

期号：2

起止页码：48-50

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2017】；

基金：中央级公益性科研院所基金项目"桃花心木和辐射松木材性质与加工技术研究"(CAFYBB2017ZC003)

语种：中文

中文关键词：进口材;辐射松;物理力学性能

外文关键词：imported wood;Pinus radiata;physical and mechanical properties

分类号：S781;S791.252

摘要：参照国家标准,对我国木材市场典型的进口针叶树木材——辐射松进行物理性能和力学性能的研究。结果表明,辐射松木材气干密度较低,径向干缩率与湿胀率均小于弦向,径向尺寸稳定性优于弦向;端面硬度>弦面硬度>径面硬度;抗弯强度等级为中,弹性模量、顺纹抗剪强度、顺纹抗压强度、冲击韧性等级为低。在实际应用时需充分考虑其材质特点,适材适用。
Physical and mechanical properties of Pinus radiata wood imported from New Zealand were tested and evaluated according to relevant Chinese national standards. The test results showed that air-dry density of the wood samples was low, shrinkage rate and wet expansion ratio in radial direction of the wood samples were all less than that in tangential direction, resulting in better radial dimensional stability. Cross hardness, radial hardness and tangential hardness of the wood samples ranked the best, the second and the worst, respectively. Bending strength fell in medium grade, and bending modulus of elasticity, impact toughness, shearing-strength and compressive strength parallel to grain were all in low grade. Therefore, it was suggested that if the wood be better processed and utilized, the characteristics of Pinus radiata wood should be considered.