| 阔叶材新干燥法研究——栲树(Castanopsis fargesii)干燥 |
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| 引用本文： | 范毜仔,余德新.阔叶材新干燥法研究——栲树(Castanopsis fargesii)干燥[J].福建林学院学报,1991(2). |
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| 作者姓名： | 范毜仔 余德新 |
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| 作者单位： | 福建林学院
(范毜仔)，中南林学院(余德新) |
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| 摘 要： | 本文从原料的制备、工艺试验以及质量分析,研究栲树的热板干燥。研究结果表明,尽管木材的含水率和干燥工艺参数不同,板材都能在1～4h内干燥到终含水率为6％左右。年轮角度影响干燥期间的蜂窝裂;热板压力与厚度收缩变化关系显著,板材初含水率高也会增加干燥时的厚度收缩;温度和压力对干燥速度有较大的影响;干燥终了存在微小的皱缩,但不会导致板材的降级。综合考虑,适宜的栲树热板干燥工艺为:温度160℃,压力7MPa。
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| 关 键 词： | 热板干燥 栲树 干燥缺陷 |
An Experimental Study on the New Drying Method for the Hardwood Castanopsis Fargesii Press-drying |
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| Fang Mizi Yu Dexin.An Experimental Study on the New Drying Method for the Hardwood Castanopsis Fargesii Press-drying[J].Journal of Fujian College of Forestry,1991(2). |
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| Authors: | Fang Mizi Yu Dexin |
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| Institution: | Fang Mizi Yu Dexin
( Fujian College of Forestry)
(Central South Forestry College) |
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| Abstract: | This paper descrides application of a promising process-a press-drying process, to Castanopsis fargesii hardwood.The experimental results showed that material 25 mm thick can be dried to 6 percent moisture content in 1-4 hours.During press-drying, there is a significant effect of the sawing pattern on honeycomb cracks, of platen-pressure and material initial moisture content on the thickness loss, and of platen-pressure and platen-temperature on the lasting time. In short, the press-drying method is suitable for any hardwood species, especially for some valuable species which will be used for carving and for the small-scale craft factory. |
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| Keywords: | press-drying castanopsis fargesii drying defects |
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