最新刊期
      期 4 ， 2016

        Research & Development

      • LI Shuang,WEI Juan,CHEN Ri-qing,WANG Chun-peng
        Vol. 30, Issue 4, Pages: 5-8(2016) DOI: 10.19455/j.mcgy.2016.04.001
        摘要：Polyvinyl acetate, phenol-formaldehyde and urea-formaldehyde resins were individually used as adhesives to make sandwich composites with fire retardant medium density fiberboard for faces and phenolic foams as the core. Combustion performance of the composites was tested. The results showed that sandwich composites made with each of the three resins had internal bond strength that could reach0.16 MPa with the appropriate amount of glue consumption. The sandwich composite glued with phenol-formaldehyde resin had the best fire retardant performance with the lowest peak heat release rate（pk HRR）, oxygen consumption and CO/CO2 yield value.  
        关键词：phenolic foam sandwich composite;adhesive;bonding strength;combustibility   
        10
        |
        60
        |
        0
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629871 false
        发布时间：2021-02-08
      • LIU Bo,XIE Xue-xia,SUN Hua-lin,JIANG Xiao-mei,YIN Ya-fang
        Vol. 30, Issue 4, Pages: 9-12(2016) DOI: 10.19455/j.mcgy.2016.04.002
        摘要：To realize high value-added utilization of valuable hardwood species, Juglans mandshurica and less-commercially used softwood species Ginkgo biloba, wood machining properties of the two species from planted forests were evaluated, respectively, according to forestry industrial standard LY/T2054-2012. The results showed that sanding, shaping and turning performance of Ginkgo biloba were excellent with good planning, boring and mortising performance. Planning, shaping and mortising of Juglans mandshurica were excellent with other general machining performance. The comprehensive machining properties of Ginkgo biloba were better than that of Juglans mandshurica.  
        关键词：Juglans mandshurica;Ginkgo biloba;planted forests;machining properties;defects   
        8
        |
        83
        |
        6
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629835 false
        发布时间：2021-02-08
      • MENG Fan-dan,WU Bing-ling,YU Yang-lun,YU Wen-ji
        Vol. 30, Issue 4, Pages: 13-16(2016) DOI: 10.19455/j.mcgy.2016.04.003
        摘要：4.5 to 6.0 mm thick veneers, made from fast-growing poplar and eucalyptus, were used to manufacture laminated veneer lumber（LVL）, and then the properties of the LVL samples were evaluated.The results showed that when the veneer glue spread was greater than 200 g/m2, the modulus of rupture（MOR）, modulus of elasticity（MOE） and horizontal shear strength（HSS） of LVL met the specifications of the National standard GB/T 20241-2006, and could be used for packaging materials.  
        关键词：Poplar;Eucalyptus;thicker veneer;laminated veneer lumber（LVL）;glue spread;physical and mechanical properties;packaging materials   
        18
        |
        67
        |
        8
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629904 false
        发布时间：2021-02-08
      • DENG Meng,ZHANG Zhan-kuang,LI Bo
        Vol. 30, Issue 4, Pages: 17-19(2016) DOI: 10.19455/j.mcgy.2016.04.004
        摘要：Electrostatic spraying technology has been applied in wooden door production for many years.Surface resistance of decorative veneer on a wood composite door surface can affect the quality of electrostatic spraying. Four species of decorative veneers which are commonly used for wood composite door surface decoration were selected, and then effects of moisture content and measuring length of the veneers on surface resistance were evaluated. The results showed that surface resistance of the veneers decreased with increased moisture content and increased with extended measuring length under the same moisture content.  
        关键词：wooden door;decorative veneer;electrostatic spraying;surface resistance;moisture content   
        7
        |
        55
        |
        6
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629849 false
        发布时间：2021-02-08

        Review

      • DONG Meng-yu,JIAO Li-chao,JIANG Xiao-mei,ZHANG Shu-juan,LI Gai-yun,YIN Ya-fang
        Vol. 30, Issue 4, Pages: 20-24(2016) DOI: 10.19455/j.mcgy.2016.04.005
        摘要：Agarwood, a compound substance of xylem tissue and its inclusions, is generally formed in the Aquilari of Thymelaeaceae during the tree’s natural growing process. In this paper, the authors reviewed the status of Thymelaeaeeae resources, wood features, identification and markets for agarwood（Aquilaria）.The authors proposed that a standard agarwood sample library, with clear identifying information and database including agarwood chemical fingerprint, be built. Finally, a standardized system of agarwood identification technology should be established in order to protect the resource and promote sustainable agarwood development.  
        关键词：agarwood;chemical analysis;quality classification;Wood anatomy   
        8
        |
        701
        |
        17
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629985 false
        发布时间：2021-02-08
      • DING Tao,MIAO Ping,PENG Wen-wen,ZHANG Xue-qin,LI Rui-fa,YANG Zhi-guang
        Vol. 30, Issue 4, Pages: 25-28(2016) DOI: 10.19455/j.mcgy.2016.04.006
        摘要：The fumigation of imported logs with methyl bromide（MB） is a broadly accepted phytosanitary method. It is now facing more and more limitation due to its adverse environmental impacts. Heat treatment is an effective and eco-friendly alternative to MB treatment. In this paper, steam heating, kiln drying and dielectric heating were comparatively analyzed and their characteristics were summarized. The conclusion is that steam heating is a promising treatment technology because it can realize a quick elimination of various pests and fungi for large-diameter logs.  
        关键词：Log;sterilization;methyl bromide fumigation;steam heating;dielectric heating;kiln drying   
        15
        |
        109
        |
        3
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629965 false
        发布时间：2021-02-08

        Discussion & Suggestion

      • LI Min,WU Zhi-hui,ZHANG Ji-lei
        Vol. 30, Issue 4, Pages: 29-32(2016) DOI: 10.19455/j.mcgy.2016.04.007
        摘要：The authors measured and analyzed three-dimensional sizes of rectangular mortise and tenon joints used in modern Hongmu furniture products. The main tolerance and fit rule for rectangular mortise and tenon joints was that tenon thickness and mortise width were interference fit, which was different from the specifications of Standard QB/T 4452-2013 for Wooden furniture-Limit and fit. Revising the above standard was proposed.  
        关键词：Hongmu furniture;rectangle;mortise and tenon joint;tolerance and fit   
        12
        |
        191
        |
        3
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6630017 false
        发布时间：2021-02-08
      • LU Qun-xia,YUAN Na-xin,LI Chong-gen,HUANG Ming-rong
        Vol. 30, Issue 4, Pages: 33-35(2016) DOI: 10.19455/j.mcgy.2016.04.008
        摘要：从废旧家具回收、打散分类、设计改造、新产品营销等方面来构建"废旧家具再利用交易中心",实现回收、改造废旧家具、旧"新"家具置换、"新家具"买卖四大功能。对提高废旧家具再利用率、减少废弃物对环境的污染、降低家具产业碳排放具有非常重要意义。  
        关键词：废旧家具;再利用;设计改造;交易中心;运营   
        14
        |
        131
        |
        4
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629948 false
        发布时间：2021-02-08
      • ZHANG Ya-mei,LI Chang-gui,YU Yang-lun,ZHU Rong-xian,REN Ding-hua,YU Wen-ji
        Vol. 30, Issue 4, Pages: 36-38(2016) DOI: 10.19455/j.mcgy.2016.04.009
        摘要：The authors conducted a series of experiments to evaluate the feasibility of making scrimber from medium-density wood, such as Robinia pseudoacacia and Eucalyptus urophylla. The technological characteristics and properties of the scrimber samples were tested. The results showed that the two species were suitable for making scrimber. When the sample’s density was 1.10 g/cm3, the mechanical properties and water resistance met the highest specifications of the National Standard GB/T 20241-2006 for Laminated Venner Lumber.  
        关键词：medium-density wood;crushed veneer;scrimber;technological characteristics;property   
        8
        |
        86
        |
        14
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6630000 false
        发布时间：2021-02-08

        Piactical Techniques

      • LV Peng,LI Jun,TAO Wei-gen,LI Liang-xiao,LIN Miao
        Vol. 30, Issue 4, Pages: 39-42(2016) DOI: 10.19455/j.mcgy.2016.04.010
        摘要：Nitrogen-phosphorous fire retardant（NPR） was combined with urea-formaldehyde（UF） resin for preparing plywood samples. Moisture content, bonding strength, immersion-peel performance and fire resistance were tested. The results showed that with 8% of NPR content and 0.2%of NH4 Cl content, the moisture content, bonding strength and qualified rate of immersion-peel test were 7.8%, 0.87 MPa and93%, respectively. The fire retardant performance of the samples met the requirement of the National Standard GB 8624-2012 for the B1 grade.  
        关键词：nitrogen-phosphorous fire retardant;urea-formaldehyde resin;bonding performance;fire retardancy   
        9
        |
        107
        |
        2
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629920 false
        发布时间：2021-02-08
      • CHEN Xiu-lan,WANG Jun-wei,WANG Li
        Vol. 30, Issue 4, Pages: 43-45(2016) DOI: 10.19455/j.mcgy.2016.04.011
        摘要：采用三聚氰胺-尿素-甲醛（MUF）树脂胶制备防潮刨花板,讨论密度、施胶量、热压温度、热压时间等工艺因素对板材性能的影响。结果表明:密度和施胶量是影响刨花板防潮性能的主要因素;采用优化的制板工艺参数,试板性能可达到GB/T 4897-2015中"P7型潮湿状态下使用的承载型刨花板"及"P9型高潮湿状态下使用的普通型刨花板"的要求,甲醛释放量达到日本JIS A 5908:2003中F☆☆☆☆要求。  
        关键词：刨花板;防潮;性能;甲醛释放量   
        11
        |
        140
        |
        5
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629861 false
        发布时间：2021-02-08
      • BAO Min-zhen,ZHANG Ya-mei,YU Wen-ji
        Vol. 30, Issue 4, Pages: 46-48(2016) DOI: 10.19455/j.mcgy.2016.04.012
        摘要：The authors made a compressed composite wood from poplar veneers that were first impregnated with phenolic-formaldehyde resin, dried at different temperatures, and finally pressed into a compressed wood. The effect of drying temperature of the impregnated veneers on the properties of the compressed wood was analyzed. The results showed that when the drying temperature were 6070 ℃, the compressed wood had superior properties including water resistance, modulus of rupture, modulus of elasticity and horizontal shear strength.  
        关键词：Poplar;Compressed wood;resin impregnation;drying temperature;properties   
        8
        |
        96
        |
        3
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629935 false
        发布时间：2021-02-08
      • CHEN Tai-an,LUO Xi,SUN Ting-cong,LUO Peng-peng,YANG Yan,CHEN An-bo
        Vol. 30, Issue 4, Pages: 49-52(2016) DOI: 10.19455/j.mcgy.2016.04.013
        摘要：Cyclobalanopsis glaucoides is a difficult-to-dry wood species. The authors developed an intermittent drying schedule and conducted a drying experiment for 25 mm thick Cyclobalanopsis glaucoides lumber. The results showed moisture content of the lumber decreased from 39% to 12% in 22 days without surface checking and properties that met Grade Ⅱ specifications of the National Standard GB 6491-2012. The authors suggested that the intermittent drying schedule was suitable for drying kilns with poor insulation and air leakages.  
        关键词：C.glaucoides;continuous drying;intermittent drying   
        7
        |
        62
        |
        0
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 6629886 false
        发布时间：2021-02-08
      0