龙竹竹材的微波干燥特性研究  

Study on Drying Properties of Dendrocalamus Giganteus Using Microwave Drying

作　　者：孙照斌[1] 袁哲[2] 强明礼[2] 杨燕[2] 

机构地区：[1]河北农业大学林学院,河北保定071000 [2]西南林学院木质科学与装饰工程学院,云南昆明650224

出　　处：《林业机械与木工设备》2006年第4期9-12,共4页Forestry Machinery & Woodworking Equipment

基　　金：云南省教育厅应用基础研究项目"竹材干燥工艺及干燥机理研究"(02ZD050)

摘　　要：对龙竹竹材在微波干燥下的干燥特性进行了研究。结果表明:微波功率和竹材构造对干燥特性有显著影响;竹材径向干缩率大于弦向干缩率;纵向干燥速度大于弦向和径向;竹材水分排除主要沿纵向,其次为弦向;竹材试件尺寸大小对竹材干缩率没有影响,试件长度对干燥速度有较显著影响。In this paper, drying properties of dendrocalamus giganteus were studied using microwave drying. The result shows： the power used and bamboo structure had distinct effect on drying properties; the shrinkage rate of bamboo timber is bigger in the radial direction than that in the tangential direction; the drying rate of bamboo timber is bigger in the longitudinal direction than that in tangential direction and the radial direction within unit time; that water was mainly expelled from bamboo timber along the longitudinal direction, next along tangential direction; the dimension of sample had no effect on the shrinkage rate of the of bamboo timber, thus the length of sample had important effect on the rate.

关 键 词：龙竹 微波干燥 干燥特性 

分 类 号：S782.31[农业科学—木材科学与技术]