热处理杨木力学性能研究  

作　　者：郝东恩[1] 梁勇[1] 

机构地区：[1]南京林业大学,江苏南京210037

出　　处：《中国木材》2008年第4期23-26,共4页

摘　　要：木材的力学性质是木材合理利用的一个重要依据。本试验测定了速生杨木的顺纹抗压强度、抗弯强度、抗弯弹性模量三个指标，主要是因为其变异幅度较小，并相对易于测定。由于木材主要强度之间存在一定的比例关系，如顺压：弯曲：顺拉：顺剪：1：2：3：0．25；所以常常由此三个指标来推算木材的其他力学强度指标。因此我们通过对杨木的热处理后，来检验它的力学性能的改变。使我们对处理木材朝着一个最优的方向，来优化我们的生产。Mechanical property of wood is an important basis of its reasonable use. This experiment examined the compressive strength parallel to grain, the bending strength and the modulus of elasticity in static bending of fast-growing poplar wood, mainly because its smai1 range of variation and relative convenience of examination. As there remains certain proportions within the main wood intensities, for instance, compressive strength parallel to grain：bending strength：tensile property parallel to grain：shearing strength parallel to grain=l ： 2 ： 3 ： 0.25, these three quotas are usually used to calculate other mechanical intensity quotas of wood. Therefore, we tested the transformation of its mechanical property after poplar had been heating treated, which enable us to process wood in a best way and to optimize our production.

关 键 词：力学性质 抗压强度 抗弯强度 弹性模量 强度指标 

分 类 号：TS743[轻工技术与工程—制浆造纸工程] TG146.21[一般工业技术—材料科学与工程]