| 红锥干燥特性研究 |
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| 引用本文： | 刁海林,蔡道雄,姜金英,唐继新,高伟.红锥干燥特性研究[J].安徽农业科学,2011,39(18):10867-10869,10935. |
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| 作者姓名： | 刁海林 蔡道雄 姜金英 唐继新 高伟 |
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| 作者单位： | 1. 广西大学林学院,广西,南宁,530004
2. 中国林业科学研究院热带林业实验中心,广西,凭祥,532600 |
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| 基金项目： | 广西林业重大招标项目“主要速生人工林树种材性改良与深加工利用”[桂林科字(2009)第7号] |
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| 摘 要： | 目的]为生产中制定红锥木材的干燥工艺奠定理论基础。方法]在（100±2）℃的恒温干燥箱内进行红锥木材干燥试验，以试件重量、裂纹长度和宽度、最后全干重和含水率为指标评价干燥过程对红锥木材的影响。结果]在100℃恒温干燥条件下，在试件干燥初期的干燥速度约为10．00％／h，干燥中期的干燥速度约为2．00％／h，干燥后期的干燥速度只有O．50％／h。红锥弦切板试件的初期开裂等级为3等，内裂等级为1等，截面变形等级为1等，扭曲等级为1等，干燥速度等级为3等，综合特性等级为3等。红锥的干燥初期温度为60℃．干燥初期干湿球温差为3～4℃，干燥终期温度为90℃。厚度为25mm的红锥板材的强制循环干燥窑内干燥至10．00％所需的时间为10．25d。结论]该试验为红锥木材所制订的干燥基准在实际干燥中可用作参考。
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| 关 键 词： | 红锥 百度试验 干燥特性 干燥基准 |
Research on the Drying Characteristics of Castanopsis hystrix |
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| DIAO Hai-lin et al.Research on the Drying Characteristics of Castanopsis hystrix[J].Journal of Anhui Agricultural Sciences,2011,39(18):10867-10869,10935. |
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| Authors: | DIAO Hai-lin |
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| Institution: | DIAO Hai-lin et al(Forestry College of Guangxi University,Nanning,Guangxi 530004) |
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| Abstract: | Objective]The research aimed to lay a theoretical foundation for formulating drying technology for Castanopsis hystrix lumber in production.Method]The drying experiment of C.hystrix lumber was performed in drying oven at constant temperature of(100±2) ℃.With weight,crack length and width,final whole dry weight and water content of test piece as indexes,the effect of drying process on C.hystrix lumber was evaluated.Result]When the test piece was dried at constant temperature of 100 ℃,its drying speed was 10.00%/h in initial stage,2.00%/h in intermedia stage and just 0.50%/h in later stage.The initial cracking grade,internal crack degree,cross-section disfigurement degree,twisting degree,drying speed degree and composite characteristic degree of test plain-sawed lumber of C.hystrix were Grade 3,1,1,1,3 and 3.The initial and final drying temperatures of C.hystrix were 60 and 90 ℃ and the temperature difference of dry-wet ball in initial drying stage was 3-4 ℃.After the C.hystrix panel with thickness of 25 mm was dried in forced circulation drying oven for 10.25 d,its water content was decreased to 10.00%.Conclusion]The drying schedule formulated for C.hystrix lumber in this experiment could be used as reference for drying practice. |
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| Keywords: | Castanopsis hystrix 100 ℃ Test Drying characteristics Drying schedule |
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