刨花切削参数对黄桦OSB刨花质量的影响  

Effect of Flaking Parameters on the Quality of Yellow Birch OSB

作　　者：郑圣龙 李园 何雨晨 解林坤[1] 万辉 ZHENG Sheng-long;LI Yuan;HE Yu-chen;XIE Lin-kun;WAN Hui(College of Materials and Chemical Engineering,Southwest Forestry University,Kunming 650224,Yunnan,P.R.China)

机构地区：[1]西南林业大学材料与化学工程学院,云南昆明650223

出　　处：《林产工业》2023年第11期21-30,共10页China Forest Products Industry

基　　金：国家自然科学基金(NSFC 31971595);云南省人才培养专项(80201402);校级科研专项(111927);云南省应用基础研究重点项目(202101AS070008);云南省木材胶粘剂及胶合制品重点实验室、高等学校学科创新引智基地,及昆明市院士专家工作站(YSZJGZZ-2020052)。

摘　　要：针对黄桦(Betula arneghaniensis britton)木片刨花生产过程中的关键影响因素进行研究,旨在通过优化刨花机参数和切削工艺实现节能降耗、提高木材资源利用率和刨花质量的目的。研究考察了CAE式圆盘刨片机的飞刀前角、后角、刀伸量、底刀刃角及木材温度、切削方向、刨花切削高度对黄桦刨花生产过程的影响。以黄桦刨花的长度分布和抗拉强度作为刨花质量的评价指标,并以卷曲指数和能源消耗为依据优化黄桦刨花的生产控制。结果表明:采用纵向切削获得的刨花质量更好。增加木材温度和底刀刃角也可以有效提升刨花质量,但增加底刀刃角会增加能耗。研究结果对于指导定向刨花板(OSB)的生产、提高木材资源利用效率,及提高经济效益具有重要意义。This study explored the key influencing factors during the flaking process of yellow birch(Betula arneghaniensis britton)wood strands with the aim of achieving energy efficiency,improving utilization of wood resources and enhancing wood strand quality by optimizing parameters and flaking processes of the disc flaker.The impact of disc flake knife rake angle,clearance angle,knife projection,counter knife angle,wood temperature,flaking direction,and wood flaking height on the production process of yellow birch wood strands were discussed.Birch wood strand length distribution and tensile strength were evaluated as the indicators of wood strand flaking quality,while strand curl index and flaking energy consumption during the cuting process were used to evaluate the production control of high-quality yellow birch wood strands.The results showed that longitudinal flaking can obtain better wood strand quality,and increasing the wood temperature and counter knife angle can effectively improve it as well.However,the increase of counter knife angle resulted in more energy consumption.This study was significant for guiding the flaking process of oriented strand board(OSB),improving the efficiency of wood resource utilization,and enhancing economic benefits.

关 键 词：黄桦 刨花 盘式刨片机 切削参数 形态分布 卷曲指数 抗拉强度 切削能耗 

分 类 号：TS653[轻工技术与工程] TS396