最新刊期
      期 6 ， 2015

        Research & Development

      • WU Yu-zhang,LV Jian-xiong,LI Jian
        Vol. 29, Issue 6, Pages: 5-8(2015) DOI: 10.19455/j.mcgy.2015.06.001
        摘要：Densified veneers were developed by resin impregnating and hot-pressing methods.Effects of compression ratio and weight percent gain（WPG）on properties of the veneers were discussed.The results showed that with increased compression ratio and WPG of the veneers,deformation recovery rate was decreased and mechanical properties including surface hardness,tensile strength and modulus were all improved.Bonding strength of plywood made with the densified veneers met the specifications of the Nationals Standard GB/T 9846.3-2004.The authors concluded that the densified veneers could be used for making high performance plywood such as container subtracts and parquet subtracts as well as concrete formworks.  
        关键词：wood modification;densified veneers;Compression ratio;weight percent gain（WPG）;mechanical properties;deformation recovery rate   
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      • XU Kai-meng,ZHENG Zhi-feng,HUANG Su-yong,LI Kai-fu
        Vol. 29, Issue 6, Pages: 9-13(2015) DOI: 10.19455/j.mcgy.2015.06.002
        摘要：To investigate the effect of chitosan（CS）on physical and mechanical properties of wood flour/polyvinyl chloride（WF/PVC）composites,an extrusion technology for making the composites was studied through orthogonal experimental design.The results indicated that the composites showed better appearance quality,physical and mechanical properties with processing temperatures of 135 ℃,155 ℃,178 ℃,190 ℃ and 180 ℃ from barrel to shaping die,rotation speed of 25 rpm and chitosan molecular weight of 860 000.  
        关键词：wood plastic composites（WPC）;chitosan;wood flour;PVC   
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      • QIAN Lei,LONG Ling,XU Jian-feng,YU Jia-hao
        Vol. 29, Issue 6, Pages: 14-17(2015) DOI: 10.19455/j.mcgy.2015.06.003
        摘要：Three kinds of nano-zirconia slurries were made by surface chemical modification methods and the slurries were respectively used to prepare styrene-acrylic emulsion,to improve hardness and wear resistance of water-borne styrene acrylate wood coatings.Then the effect of surface modification methods on nano-zirconia slurry properties as well as the hardness and wear resistance of styrene-acrylic wood coatings were investigated.The results showed that the slurries showed excellent performance like small particle size,low viscosity and good stability when polyacrylamide,polyethylene glycol and octylphenol polyoxyethylene ether were used as modifiers.When 1% of the nano-zirconia slurry was added into water-borne styrene acrylate wood coatings,the abrasion value of the coating film was 0.069g/100 rwith 1 800 rof abrasion cycle and 2H of hardness.  
        关键词：water-borne wood coating;nano-zirconia;film hardness;wear resistance   
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        发布时间：2021-02-08
      • ZUO Ying-feng,WU Yi-qiang,LV Jian-xiong,ZHU Xiao-dan
        Vol. 29, Issue 6, Pages: 18-21(2015) DOI: 10.19455/j.mcgy.2015.06.004
        摘要：Straw boards reinforced with poplar veneer were manufactured with inorganic adhesives developed by the authors.Optimal process parameters were obtained by orthogonal experiments.Testing results showed that glue spread,hot pressing temperature,time and pressure all significantly influenced properties of the samples.Within optimal experimental parameters,modulus of elasticity,modulus of rupture,surface bonding strength and delamination of the samples could meet the requirements of National Standard GB/T 18103-2013 parquet and GB/T15104-2006 decorative veneered wood-based panels.  
        关键词：inorganic adhesive;poplar veneer;straw board;reinforcement   
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        发布时间：2021-02-08

        Discussion & Suggestion

      • QUE Ze-li,LI Zhe-rui,JIANG Gui-chao,ZENG Qing-hong,JI Ning
        Vol. 29, Issue 6, Pages: 22-26(2015) DOI: 10.19455/j.mcgy.2015.06.005
        摘要：The authors reviewed literature regarding basic structural performance of Crosslaminated Timber（CLT）,focusing on achievements in fire resistance,earthquake resistance and sound insulation performance fields.They also compared current situation of wood structure development between China and overseas as well as pointed out future prospects for a CLT system in China.Suggestions on development of CLT system in China were also presented.  
        关键词：Cross-laminated timber;structural performance;wood structure;fireproof;antiseismic;sound insulation   
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      • SHI Bai-nan,ZHANG Xin-pei
        Vol. 29, Issue 6, Pages: 27-29(2015) DOI: 10.19455/j.mcgy.2015.06.006
        摘要：According to the National Standard GB/T 50329-2012 for test methods of timber structures under forces parallel to grain and longitudinal direction of metal plate connectors,metalplate connectors with three different widths（50,100 and 150 mm）were selected to join SPF Ⅱdimensional lumber from North America.Then lateral slip resistance and ultimate lateral resistance of the metal-plate connectors were evaluated.Testing results showed that the metal plates with 50150 mm in width had little influence on the lateral slip resistance and the ultimate lateral resistance.But the metal plate with 100 mm in width showed the most stable bearing capacity.  
        关键词：metal-plate connector;lateral slip resistance;ultimate lateral resistance;size effect   
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        发布时间：2021-02-08

        Piactical Techniques

      • LI Chong-gen,WANG Ben-yang,XIE Di-wu,LI Yong,LI Wei-cheng
        Vol. 29, Issue 6, Pages: 30-32(2015) DOI: 10.19455/j.mcgy.2015.06.007
        摘要：为了促进浸渍处理杨木的高附加值和产业化应用,采用脲醛树脂浸渍处理速生杨木零件,检测处理后零件的形变及其榫接合装配特性。结果表明:处理零件的厚度、宽度与翘曲度无明显变化,可用于榫卯结构的装配;处理杨木榫卯结构的握榫力比处理前大幅增加。  
        关键词：杨木制品零件;浸渍处理;尺寸稳定性;榫卯结构;握榫力   
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        发布时间：2021-02-08
      • LAO Yi-min,TU Deng-yun
        Vol. 29, Issue 6, Pages: 33-35(2015) DOI: 10.19455/j.mcgy.2015.06.008
        摘要：为提高圆盘豆地板坯料的干燥质量,采用了优化的干燥工艺,25mm厚圆盘豆地板坯料从初含水率36%干燥至终含水率10%,共耗时520h,干燥质量达到GB/T 6491-2012《锯材干燥质量标准》的一级要求,干燥合格率96.6%、出材率94.9%,满足圆盘豆实木地板生产的要求。  
        关键词：圆盘豆;干燥特性;干燥工艺;干燥质量   
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      • ZHENG Ya-xian,LV Wen-hua,XU Mao-song
        Vol. 29, Issue 6, Pages: 36-39(2015) DOI: 10.19455/j.mcgy.2015.06.009
        摘要：In order to effectively impregnate Chinese fir from plantations,a multifunctional silicate resin modifier was prepared and used to treat the wood through a repeated pressure/vacuum impregnation technology.Density of the modified wood could reach 0.5500.650g/cm3 with antiswelling rate of 45%50%.Compared with control wood,modulus of rupture,abrasion resistance and flame resistance of the modified wood were all improved by more than 50% with modulus of elasticity increased by more than 70%.These results indicated that the modified wood was suitable for making high-value added solid wood products.  
        关键词：Chinese Fir;inorganic silicate;multifunctional resin modifier;full impregnation process   
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      • SUN Yu-hui,ZHENG Hai-wei,LIU Yi-nan,LIU Wei-yan,WANG Hou-jun,GU Yan,LIN Li-min
        Vol. 29, Issue 6, Pages: 40-42(2015) DOI: 10.19455/j.mcgy.2015.06.010
        摘要：According to the Japanese Agricultural Standard for structural plywood,outside shear strength and bending strength for larch structural plywood with seven different panel thicknesses were tested.The results showed that the outside shear strength and the bending strength of the samples met the requirements of the Japanese standard.  
        关键词：larch;structural plywood;full-scale testing samples;outside shear strength;bending strength   
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      • CHENG Xian-bao,ZHU De-cheng,SUN Bai-ling,WANG Xi-bin,FU Yue-jin
        Vol. 29, Issue 6, Pages: 43-45(2015) DOI: 10.19455/j.mcgy.2015.06.011
        摘要：采用热处理柞木单板作为面板制备多层实木复合地板,探究面板热处理工艺对地板性能的影响。结果表明:使用热处理面板与基材胶合,其胶合强度较用未处理面板时略下降,但仍满足GB/T 9846-2004《胶合板》要求;使用热处理面板的多层实木复合地板试样均未出现胶层剥离;面板的表面开裂率降低。  
        关键词：热处理;柞木面板;多层实木复合地板;胶合强度;浸渍剥离性能;开裂   
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      • SUN De-zhong
        Vol. 29, Issue 6, Pages: 46-48(2015) DOI: 10.19455/j.mcgy.2015.06.012
        摘要：满洲里木材加工产业集群初步形成并取得快速发展,但也面临诸多挑战。基于对满洲里木材加工产业集群发展历史的梳理,论述了产业集群的发展现状,分析了产业集群当前存在的主要问题,并探讨了产业集群谋求进一步发展的应对措施。  
        关键词：满洲里;木材加工业;产业集群;口岸地区   
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      • Vol. 29, Issue 6, Pages: 49-50(2015) DOI: 10.19455/j.mcgy.2015.06.015
        摘要：<正>由木地板专利联盟主办、中国林科院木材工业研究所承办、木竹产业技术创新战略联盟和上海热丽科技集团有限公司（热丽科技）协办的"木地板专利创造与合作研讨会",于2015年9月28—29日在上海召开。国家林业局科技发展中心及国家知识产权局的  
          
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      • Vol. 29, Issue 6, Pages: 54-55(2015) DOI: 10.19455/j.mcgy.2015.06.022
        摘要：<正>创新不是直觉,更不是灵感。随着德国工业4.0、中国制造2025,这两个概念被逐日提升,"自动化"、"信息化"成为木材加工企业改革创新和发展的双引擎,企业必须顺应市场的需求和发展要求,脚踏实地地顺应市场发展方向,把握市场脉博,从而使自己不会被湮灭在时代的浪潮中。强大的背景下,生成的是强劲的动力。再值金秋,伴着上海家具展的落幕,威力第13届室内展暨  
          
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