| 不同干燥条件下小径桦木材性指标的研究 |
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| 引用本文： | 王丽宇,朱政贤,艾沐野.不同干燥条件下小径桦木材性指标的研究[J].木材工业,2004,18(3):14-16. |
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| 作者姓名： | 王丽宇 朱政贤 艾沐野 |
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| 作者单位： | 1. 北京林业大学材料科学与技术学院,北京,100083
2. 东北林业大学材料科学与工程学院,哈尔滨,150040 |
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| 摘 要： | 对小径桦木在大气及干燥室等不同条件下干燥后的材性进行了测试，结果表明：不同干燥条件对小径桦木的材性有影响。室干材的尺寸稳定性、变形程度及力学性能均优于气干材；采用软干燥基准时，可改善小径木的尺寸稳定性和力学性能，从而提高干燥质量。从总体材性指标可见，小径木更适合室内干燥。
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| 关 键 词： | 干燥条件 小径木 材性 桦木 |
| 文章编号： | 1001-8654(2004)03-0014-03 |
The Properties of Small Diameter Birch Timber Dried under Different Conditions |
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| WANG Li-yu,ZHU Zheng-xian,AI Mu-ye.The Properties of Small Diameter Birch Timber Dried under Different Conditions[J].China Wood Industry,2004,18(3):14-16. |
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| Authors: | WANG Li-yu ZHU Zheng-xian AI Mu-ye |
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| Institution: | WANG Li-yu~1,ZHU Zheng-xian~2,AI Mu-ye~2 |
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| Abstract: | In order to determine the effect of different drying conditions on the quality of timber, small diameter plantation grown Birch (Betula platyphylla and B. costata) logs were either air dried or kiln dried. Property indexes such as dimensional stability, deformation degree, hardness and cleavage strength were tested and the results were analyzed. According to the data, the authors found that the quality of the logs that were kiln-dried was better than those that were air-dried. They also found there were differences in properties in the kiln-dried logs dried under different drying schedules. A milder schedule based on relatively lower temperature and higher humidity could bring better drying quality. From the results, the authors concluded that kiln drying small diameter plantation grown timber produced better results than air drying. |
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| Keywords: | Drying condition Small diameter log Wood properties Birch |
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