最新刊期
      期 1 ， 2014
      • WANG Hao,CAO Ping-xiang,FAN Qing-ping,DING Jian-wen,GUO Xiao-lei
        Vol. 28, Issue 1, Pages: 5-9(2014) DOI: 10.19455/j.mcgy.2014.01.001
        摘要：The quadrilateral saw is one of the key machines in hexagon sawing technology for small diameter logs.A three-dimensional model of a quadrilateral saw was designed by Pro/E software,and the sawing mechanism was simulated by Inventor based on mechanism design and digitization analysis.The results showed that the design of the saw was reasonable and reliable.  
        关键词：small diameter logs;quadrilateral cutting saw;3Ddesign;simulation   
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        发布时间：2021-02-08
      • YU Chang-wei
        Vol. 28, Issue 1, Pages: 40-41(2014) DOI: 10.19455/j.mcgy.2014.01.014
        摘要：<正>技术法规多以限量限值为基础,执行时需要准确掌握相关数据。澳大利亚是我国重要的出口国家之一,也是世界上检疫要求最严格的国家之一,因此,了解和掌握其检疫处理法规的相关限制,可为我国输出至澳大利亚产品的检疫处理提供参考。澳大利亚现执行的溴甲烷熏蒸检疫处理法,是依据其2011年11月颁布的标准《AQIS methyl bromide fumigation version 1.7》,共分为9部分,分别对熏蒸场所的选择、货物规格及包装、操作过程、效果检测等方面的要求进行了阐述,其中涉及操作限值的内容如下。  
          
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      • Vol. 28, Issue 1, Pages: 53-54(2014) DOI: 10.19455/j.mcgy.2014.01.021
        摘要：<正>木业产业是山东临沂市的标志性产业,也是传统支柱产业,经过20多年的发展,临沂木业拥有了以胶合板、贴面板和建筑模板为主导,兼有地板、家具等比较齐全的产品系列,初步形成了以原材料、制板、制胶、板材加工、家具生产与设备制造等较为完备的产业体系,成为带动地方经济发展的重要主导产业之一。  
          
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      • Vol. 28, Issue 1, Pages: 55-59(2014)
        摘要：<正>美国撤销对中国阔叶木胶合板证高额关税2013年11月5日,美国国际贸易委员会（ITC）宣布:从中国进口的阔叶木胶合板对美国国内相关产业造成实质性威胁或损害,最终ITC参会委员以5:0的投票结果,决定撤销对中国阔叶木胶合板征收74%的反倾销（AD）和反补贴（CVD）关税。  
          
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      • Vol. 28, Issue 1, Pages: 61-62(2014)
        摘要：<正>第20届德国汉诺威国际林业及木工机械展（Ligna）已于2013年5月落幕。此届展会主题为"更有效地利用林木资源",并以"创新、解决方案与效能"为关键词,多功能机械与数字化制造成为热点。德国机械产品以其科技含量高与质量精湛,在全球市场占据领先地位。德国Leitz集团是一个有着138年历史的世界著名切削工具制造企业,在木材加工和塑料加工刀具的刀具结构和刀具材料领域,始  
          
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      • Vol. 28, Issue 1, Pages: 63-64(2014) DOI: 10.19455/j.mcgy.2014.01.022
        摘要：<正>第8届中国（东阳）木雕竹编工艺美术博览会,于2013年11月8日在浙江东阳中国木雕城隆重举行。博览会每年一届,由中国工艺美术学会、中国林业产业联合会、中国非物质文化遗产保护中心、中国轻工工艺品进出口商会、东阳市人民政府共同主办,东阳中国木雕城等单位联合承办。来自云南、广东、广西、福建、江西、台湾等20多个省市的木雕根雕、红木家具、竹编竹雕展商云集木雕城的36个展区;木雕城的13层为经营户展区,展示木雕（红木）家具及木、竹制工艺品。  
          
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        发布时间：2021-02-08

        Research & Development

      • HE Wen,ZHANG Qi-sheng,JIANG Shen-xue,CAI Yu-wei
        Vol. 28, Issue 1, Pages: 10-13(2014) DOI: 10.19455/j.mcgy.2014.01.003
        摘要：Nano-montmorillonite（NMMT）was added to bamboo flour（BF）to improve the properties of a bamboo-plastic composite made with high density polyethylene（HDPE）combined with BF and NMMT.The results showed that the water absorption and adsorption of the resulting composite decreased and modulus of elasticity,modulus of rupture,tensile strength and impact strength all increased as the NMMT percentage increased from 0to 4% but then decreased as further amounts of NMMT were added.However,thermal stability of the composite continued to improve as the percentage of NMMT increased.  
        关键词：nano-montmorillonite（NMMT）;bamboo flour;high density polyethylene（HDPE）;composite material;properties   
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        发布时间：2021-02-08
      • YAN Li,CAO Jin-zhen,CUI Yong-zhi
        Vol. 28, Issue 1, Pages: 14-17(2014) DOI: 10.19455/j.mcgy.2014.01.006
        摘要：Poplar samples were pretreated with a 50%（volume fraction）glycerin solution and then compressed at various temperatures and times.The samples were then measured and analyzed for recovery ratio,surface hardness and microscopic.The results showed that the recovery ratio decreased while the compressive temperature and time increased but the surface hardness was reduced when the compressive time was longer than 60min.The optimum processing parameters was 30min compression at 180℃ or 60min compression at 160℃.  
        关键词：Compressed wood;compressing technology;glycerin;recovery ratio;microscopic structure;surface hardness   
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        发布时间：2021-02-08
      • ZHU Xian-chao,LI Gai-yun,QIN Te-fu
        Vol. 28, Issue 1, Pages: 18-22(2014) DOI: 10.19455/j.mcgy.2014.01.007
        摘要：Poplar was liquefied using the mixed solvents of PEG 400/glycerol catalyzed by sulfuric acid under microwave heating,and liquefied wood-based polyurethane foams（PU）were prepared from the liquefied wood products and 4,4′-methylene-diphenylene isocyanate.The results indicate that microwave heating is a promising effective alternative method for traditional heating in wood polyhydric alcohol liquefaction.The optimal conditions for microwave-assisted liquefaction of poplar wood with polyhydric alcohols are as follows:moisture content 4.7%,microwave power 500 W, polyol to wood ratio 2.5,liquefaction time 15 min.The liquefied wood-based PU foams showed apparent density of 0.038g/cm3 and compressive strength of 68kPa respectively.  
        关键词：microwave heating;Poplar;polyhydric alcohol liquefaction;property   
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        发布时间：2021-02-08
      • MIAO Hu,CHENG Fang,ZHOU Yu-cheng,AN Yuan,HOU Xiao-peng,ZHANG Guo-liang
        Vol. 28, Issue 1, Pages: 23-26(2014) DOI: 10.19455/j.mcgy.2014.01.008
        摘要：In chambers for accelerated testing formaldehyde emissions from wood-based panels, temperature was indirectly regulated by water circulation.Due to non-linearity,time delay and time variation of the temperature control,it was hard to build a precise mathematical model for the process.A fuzzy adaptive Proportion-Integration-Differentiation（PID）controller was designed and developed,which could automatically adjust the PID parameters and to adapt changing arguments in the controlled process.Compared with conventional PID control algorithms,the control effect of a fuzzy-PID algorithm could greatly improve system stability,responding speed,overshoot and steady state accuracy.  
        关键词：wood-based panel;formaldehyde emission;fast testing device;temperature control;Fuzzy-PID control algorithm   
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      • LIU Long,HUA Jun,ZHANG Shao-qun,CHEN Guang-wei
        Vol. 28, Issue 1, Pages: 27-30(2014) DOI: 10.19455/j.mcgy.2014.01.009
        摘要：Special Edge Load（SEL）of 8different kinds of refiner plates selected were calculated and fiber size（fiber length and aspect ratio）machined by these plates were measured.Regression model of the Special Edge Load and fiber length,aspect ratio were established.Analysis results showed that SEL had significant influence on fiber length and fiber aspect ratio,and influence on fiber length was more obvious than fiber aspect ratio,which could provide reference to fiber quality forecast,refiner plate type selection and design of grinding tooth shape of the plates.  
        关键词：refiner plate;special edge load（SEL）;fiber morphology;fiber length;fiber aspect ratio   
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        Discussion & Suggestion

      • LIU Shou-hua
        Vol. 28, Issue 1, Pages: 31-33(2014) DOI: 10.19455/j.mcgy.2014.01.010
        摘要：The author reviewed current situation of wood-based panels industry development in China and abroad and analyzed the latest development trend of wood-based panel production,based on resource availability and market demand.It was suggested that Chinese wood-based panels industry should focus on introducing more continuous press production technology and producing high value-added structural panels such as laminated veneer lumber（LVL）&oriented strand board（OSB）.  
        关键词：wood-based panel;continuous press;development;trend   
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      • ZHANG Zhao-hao,QI Ying-jie,MA Xiao-jun
        Vol. 28, Issue 1, Pages: 34-37(2014) DOI: 10.19455/j.mcgy.2014.01.011
        摘要：The authors introduced the current status of using Computer Numerical Control（CNC） machining equipment for making hardware grooves in wood doors and analyzed the effects of customized-production on wood door machining precision.From systematic error control, processing parameter selection,tool path generation and tool radius compensation points of view, the authors made suggestions on improving the precision.  
        关键词：wood door;hardware;groove;precision   
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      • XU Man-ping,YU Hai-xia,FANG Chong-rong,GUO Fei-yan
        Vol. 28, Issue 1, Pages: 38-39(2014) DOI: 10.19455/j.mcgy.2014.01.013
        摘要：随机抽取10批次浸渍纸层压木质地板为试材,按照GB/T 18102-2007、GB/T 17657-1999,分别检测其吸水厚度膨胀率（TS）、吸水率（WA）的变化特性。结果表明:所有试样的TS均在浸泡96h时达到平衡,之后TS变化甚微;对TS不同的试样,其WA达到平衡饱和状态所需时间相差甚远,试样的TS和WA无直接对应关系。建议标准应将试样的TS浸泡时间延长至96h,并增加WA的检测,更为可靠。  
        关键词：浸渍纸层压木质地板;吸水厚度膨胀率;吸水率;浸泡时间   
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        发布时间：2021-02-08

        Piactical Techniques

      • ZHANG Zhen-wei,TU Deng-yun,GUAN Li-tao,YUN Hong,LIAO Li
        Vol. 28, Issue 1, Pages: 42-44(2014) DOI: 10.19455/j.mcgy.2014.01.016
        摘要：为提高浸渍处理毛白杨木材的干燥质量,以46mm厚改性脲醛树脂浸渍毛白杨木材为研究对象,进行了干燥工艺研究。结果表明,将初含水率107%的浸渍毛白杨木材干燥至含水率12%,共用时35d,干燥质量达到GB/T6491-1999《锯材干燥质量》规定的一级要求。  
        关键词：毛白杨;改性脲醛树脂;浸渍;干燥工艺;干燥质量   
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      • WANG Hai-dong,LIU De-jian,LUO Xing-qiang,MAO Liang-yong
        Vol. 28, Issue 1, Pages: 45-48(2014) DOI: 10.19455/j.mcgy.2014.01.017
        摘要：介绍反应性聚氨酯胶（PUR）快速辊压技术的原理,及其应用于PVC薄膜、皮革等多种装饰材料帖面加工的关键技术。生产试验数据表明,与传统冷压工艺生产的PVC薄膜、皮革帖面装饰材料产品相比,采用PUR快速辊压技术生产的产品的剥离强度提高,耐冷热循环周期延长,且无鼓泡、起皱等缺陷,产品质量和生产效率明显提升。  
        关键词：聚氨酯胶;快速辊压;剥离强度;冷热循环   
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      • XU Wei,HUANG Qiong-tao,WU Zhi-hui
        Vol. 28, Issue 1, Pages: 49-52(2014) DOI: 10.19455/j.mcgy.2014.01.019
        摘要：针对优质木材资源紧张,开发利用青冈、松木等次小薪材,经锯解、胶拼、微型指接和层积胶合后再贴面,用于家具部件制造,以提高次小薪材的综合利用率和附加值,并拓宽家具的用材资源。  
        关键词：次小薪材;胶拼;微型指接;层积胶合;家具部件   
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