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Pilot test drying process for Castanopsis hystrix lumber
Author(s): 
Pages: 240-244
Year: Issue:  2
Journal: Journal of Zhejiang A&F University

Keyword:  林业工程红锥锯材干燥基准中试工艺;
Abstract: 进行红锥Castanopsis hystrix锯材干燥中试,验证中试干燥基准的正确性,以求获得适于红锥生产应用的干燥基准.采用生产中广泛使用的强制气流循环式干燥窑,在给定的中试干燥基准下对红锥锯材实施干燥试验,并按照国家标准(GB/T 6491-1999)进行锯材干燥质量评定.中试结果表明:红锥锯材平均终含水率为7.24%,厚度含水率偏差为2.37%,应力指标为4.12%,平均顺弯度为0.17%,横弯度为0.25%,扭曲度为0.24%,瓦弯度为2.55%,纵裂度为3.31%,截面收缩为5.793%,无内裂,干燥至含水率12%时所用时间为138 h(5.75 d),干燥速度为0.31%·h-1.中试干燥基准基本正确,总体干燥质量良好,基本达到木制品生产对红锥干燥质量的要求.
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