| 摘要: |
| 通过百度试验法研究小径巨尾桉（Eucalyptus grandis×E. urophylla）的干燥特性，制定巨尾桉材
干燥基准，进行干燥工艺优化试验。结果表明：小径巨尾桉材初期开裂等级为3 级，内裂等级为2 级，截
面变形等级为5 级，属中等难干材；采用制定的巨尾桉材干燥基准，试件从初含水率115.13% 降至8.50%
的干燥周期为16.3 d，除瓦弯变形外，其他可见干燥缺陷指标均达到国家标准GB/T 6491—2012 《锯材干
燥质量》规定的一级要求。 |
| 关键词: 巨尾桉 干燥工艺 百度试验法 干燥特性 |
| DOI： |
| 分类号:782.31 |
| 基金项目:华南农业大学青年科技人才项目(2900-216260),华南农业大学长江团队科研启动资金项目(4900-K16009),国家自然科学“竹粉表面修饰对高填充木塑结构-性能的调控机理研究”(31600459) |
|
| Study on Drying Characteristics and Drying Technology of Small Diameter Eucalyptus grandis×E. urophylla |
|
Zhou Qiaofang,Gu Jin,Wang Qingwen and Li Kaifu
|
|
South China Agricultural University,Guangzhou,South China Agricultural University,Guangzhou,South China Agricultural University,Guangzhou,South China Agricultural University,Guangzhou
|
| Abstract: |
| The wood drying characteristics of small diameter of Eucalyptus grandis×E. urophylla were
analyzed by using the 100℃ test method and its drying schedule was optimized, and the drying technology
experiment was subsequently conducted. The results showed that the level of initial cracking, internal cracking and
cross section deformation of E. grandis×E. urophylla were 3, 2 and 5, respectively, and the drying difficulty was
in medium; the drying period was 16.3 days by using the optimized drying schedule when the moisture content
decreased from 115.13% to 8.50%, and the quality of drying samples reached the first level of the national standard
GB/T 6491—2012, except the cupping defect. |
| Key words: Eucalyptus grandis×E. urophylla drying technology 100℃ test method drying characteristics |
