细木工板基材用杉木干燥工艺研究  

Drying Technique for Cunninghamia lanceolata for Blockboard Base Material

作　　者：黄腾华[1,2] 荣波 王军锋 叶新忠[3] 宋恋环 Huang Tenghua;Rong Bo;Wang Junfeng;Ye Xinzhong;Song Lianhuan(Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China;Guangxi Guangxi Quality Control of Wood Resources Cul-tivation Research Center of Engineering Technology,Nanning,Guangxi 530002,China;Guangxi Zhuangxiang Wood Industry Co.Ltd.,Liuzhou,Guangxi 545400,China)

机构地区：[1]广西壮族自治区林业科学研究院,广西南宁530002 [2]广西木材资源培育质量控制工程技术研究中心,广西南宁530002 [3]广西壮象木业有限公司,广西柳州545400

出　　处：《广西林业科学》2022年第2期266-270,共5页Guangxi Forestry Science

基　　金：广西科技重大专项(桂科AA17204087-13)。

摘　　要：以细木工板基材用杉木(Cunninghamia lanceolata)为研究对象,对杉木锯材进行小试干燥试验,依据GB/T 6491-2012标准,分析干燥缺陷,制定干燥基准,获得优化小试干燥工艺;开展杉木锯材干燥工艺优化中试试验,并将采用优化小试干燥工艺和优化中试干燥工艺的杉木锯材与原企业干燥工艺的杉木锯材进行对比。结果表明,细木工板基材用杉木属于易干锯材,在干燥过程中易出现开裂和翘弯变形。采用优化中试干燥工艺后,杉木锯材的干燥时间约48 h,比企业原干燥工艺时间缩短约33%,且干燥质量等级达到GB/T 6491-2012标准一级要求,满足细木工板基材质量要求。优化后的细木工板基材用杉木干燥工艺,在确保干燥质量的前提下,较显著提高干燥效率,降低干燥成本。Taking Cunninghamia lanceolata for blockboard base material as research object,and lab scale test was conducted on C.lanceolata sawn timber.Based on GB/T 6491-2012,drying defects were analyzed,drying schedule was formulated,and optimized drying process of lab scale test was obtained.Optimized drying process of pilot scale test of C.lanceolata sawn timber was carried out.C.lanceolata sawn timber with optimized lab scale test and optimized pilot scale test were compared with that with enterprise's original drying process.Results showed that C.lanceolata for blockboard base material was easy to dry.Cracking and warping deformation were easy to appear during drying process.Drying time of C.lanceolata sawn timber was about 48 h by opti-mized drying process of pilot scale test,which was about 33%shorter than enterprise's original drying process,and drying quality grade reached grade one of GB/T 6491-2012 standard,which met quality requirements of blockboard base material.Under the premise of ensuring drying quality,drying efficiency was significantly improved and drying cost was reduced.

关 键 词：干燥工艺 干燥质量 杉木 

分 类 号：S781.71[农业科学—木材科学与技术] S792.18[农业科学—林学]