最新刊期
      期 0 ， 2020

        Review

      • ZHOU Hai-bin1
        Vol. 26, Issue 2, Pages: 1-5(2012) DOI: 10.19455/j.mcgy.2012.02.001
        摘要：The previous paper in this series summarized the developmental history,the industrial status,and the macroscopic characteristics of timber construction in China.The problems of China’s wood construction industry,such as,a fragmentary industry chain,small scale enterprises,low-level technology and an underdeveloped social division were analyzed for this paper.The mutual management mode among ecosystem,timber construction and real estate and the development stratagem to capital operation,are presented.The author believes that the future of the Chinese wood structure industry should take into consideration new energy requirements,environmental impact,and acceptance of traditional culture.  
        关键词：timber construction;industry status;energy saving and emission reduction;culture inheritance   
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      • Vol. 26, Issue 2, Pages: 5-17(2012)
        摘要：<正>2012 XYLEXPO前景乐观2012年意大利米兰国际木工机械展览会Xylexpo,将于5月8-12日在米兰举办。距离展会开幕前4个月的调查数据显示,与上届展会相比,2012届展会前景光明,截止到1月中旬,已有逾400家展商报名,其展览面积将近3万m2。此届展会面积将扩大至4个展厅。其中:  
          
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      • QI Jin-qiu1,YU Wen-ji1,XIE Jiu-long2,YU Yang-lun1,ZHANG Ya-hui1,SUN Hua-lin1
        Vol. 26, Issue 2, Pages: 6-9(2012) DOI: 10.19455/j.mcgy.2012.02.002
        摘要：Basic veneer morphologies of crushed bamboo（Dendrocalamus farinosus） were studied.The results show that the average crack angle combed on bamboo’s outer and inner skin face,at both the nodes and internode locations,ranged between 60° and 70°.After crushing,about 52% and 75% of the bamboo green layers separated the internodes and nodes,respectively.The average cross-section area between internodes was about 1.97 mm2,which contained 4.61 vascular bundles.The average cross section area at nodes was about 1.83 mm2,which contained 4.07 vascular bundles.The bamboo composites could be designed under controlled crushing conditions.  
        关键词：bamboo-based fiber composites;crushed bamboo veneer;bamboo bundle;vascular bundle;Dendrocalamus farinosus   
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      • LIU Yang1,LIU Le-qun1,WANG Yu-hong2,SUN Feng-wen2,ZHANG Qian2,WANG Jin1
        Vol. 26, Issue 2, Pages: 10-13(2012) DOI: 10.19455/j.mcgy.2012.02.003
        摘要：Bamboo residues were liquefied with phenol and polyethylene glycol（PEG-400）under catalyzed conditions.The liquefacients were then polymerized with formaldehyde to produce a resin at foaming material.The process parameters affecting liquefaction efficiency,such as phenol and hydrochloric acid content,liquefaction temperature and duration are discussed.The resinification conditions were analyzed on sodium hydroxide and formaldehyde content,temperature and time.  
        关键词：bamboo residues;liquefaction;resinification;foaming;phenol;PEG-400   
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      • XU Yue-xing
        Vol. 26, Issue 2, Pages: 55-56(2012) DOI: 10.19455/j.mcgy.2012.02.014
        摘要：<正>中国强化木地板之都——江苏省常州市横林镇,全镇现有工业企业1 200多家,2010年实现国内生产总值60.7亿元,完成工业产值200.4亿元,实现销售收入194.4亿元,利税10.49亿元。强化木地板作为横林镇的主导优势产业,在推进  
          
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      • Vol. 26, Issue 2, Pages: 63-64(2012) DOI: 10.19455/j.mcgy.2012.02.016
        摘要：<正>辛北尔康普集团,专业研发和制造各种材质人造板机械设备,凭借其创新的技术、全面的机械设备产品和强大的售后服务,在全球市场处于领先地位。近期,辛北尔康普公司针对人造板生产线领域,推出"一个目标、三剑合璧"的理念,其内涵及价值如何体现,本刊对辛北尔康普公司二手机器事业部Hans-Jürgen Busch先生进行了专访。  
          
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        Research & Development

      • ZHANG Zhan-kuan,PENG Xiao-rui,WANG Bao-gang,ZHANG Jie,LI Wei-guang
        Vol. 26, Issue 2, Pages: 14-17(2012) DOI: 10.19455/j.mcgy.2012.02.004
        摘要：Sanding is an important process in wood door manufacturing for overall appearance.Wooden doors made from ash,black walnut,and cherry decorative veneers were selected for their irregular appearance for this study.The doors were sanded and painted twice with primer.The surface roughness was evaluated before and after each sanding process.The authors expect the results will provide a reference for optimizing the wood door sanding process,improving door quality and establishing relevant standards.  
        关键词：wooden door;special-shaped surface;Sanding;surface roughness   
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      • WANG Yan-wei,HUANG Rong-feng,ZHANG Yao-ming
        Vol. 26, Issue 2, Pages: 18-21(2012) DOI: 10.19455/j.mcgy.2012.02.005
        摘要：Samples of Chinese White Poplar were hot-compressed under various temperatures and surface layer water content.After densification,the following tests were evaluated:surface density,hardness,and deformation recovery rate.The results showed that,after pressing,the surface layer density and hardness were improved.Then,by keeping the samples under 180 ℃ for 4 hours after pressing,the deformation recovery rate decreased by 30%.  
        关键词：Chinese White Poplar;hydro-thermal control;surface layer densification;density;hardness;fixation   
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      • DING Tao,GU Lian-bai,ZHU Nan-feng,GUO Xiao-lei,HE Wen-jie
        Vol. 26, Issue 2, Pages: 22-24(2012) DOI: 10.19455/j.mcgy.2012.02.006
        摘要：The authors studied the effect of heat treatment on the machinability of Mongolian oak.Compared with untreated samples,heat-treated wood samples exhibited lower cutting-tool temperature and generated more fine dust during the milling process.The smoothness of the heat-treated samples was statistically the same as the untreated samples.The results will hopefully provide some insight into optimizing the milling process.  
        关键词：wood;heat treatment;tool temperature;surface roughness;dust size distribution   
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        Discussion & Suggestion

      • SUN Yu-quan1,YANG Sen1,FU Yue-jin2,ZHENG Jin-feng1,PENG Li-zheng1,YU Guang-he1
        Vol. 26, Issue 2, Pages: 25-28(2012) DOI: 10.19455/j.mcgy.2012.02.007
        摘要：Four decorative panels made from regular blockboard,flame retardant blockboard,rubber insulation board,and fire retardant plywood were evaluated for their combustion properties:heat release rate（HRR）,fire growth rate indices（FIGRA）,total heat release（THR）,total smoke production（TSP）,and smoke growth rate（SMOGRA）using the single burning item（SBI）.The results showed that the SBI was effective in differentiating the fire retardant performance among the selected products.As expected,flame retardant blockboard and fire retardant plywood outperformed normal blockboard and rubber insulation board.  
        关键词：decorative panels;single burning item（SBI）;fire growth rate indices;smoke growth rate   
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      • YU Li-ping1,XIA Yu-fang1,CHENG Shu-wei2
        Vol. 26, Issue 2, Pages: 29-33(2012) DOI: 10.19455/j.mcgy.2012.02.008
        摘要：Boron-based wood preservatives have been one of the environmentally-friendly chemicals to improve wood product durability.However,boron leaching,their effective ingredient,has presented a major barrier for outdoor applications.To improve the understanding of the boron leaching mechanism,the authors reviewed the current research status of developing and applying boron-based wood preservatives in the areas of processing and mixing with other special borides for leaching resistance.Some suggestions were made for development of future boron-based wood preservatives with better leachability.  
        关键词：boron-based wood preservatives;leachability   
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      • WANG Yu-rong,LV Bin,REN Hai-qing,ZHANG Jun-zhen
        Vol. 26, Issue 2, Pages: 34-36(2012) DOI: 10.19455/j.mcgy.2012.02.009
        摘要：Based an investigation on solid wood flooring in the Chinese market and companies,the authors reviewed the resource status,utilization,installation methods for solid wood flooring.Aiming at saving wood resources,they proposed that exploring new trees resource,increasing wood utilization rate and developing new pavement methods should be conducted.  
        关键词：Solid wood flooring;manufacture;installation   
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      • CHEN Yong-ping1,LI Hua1,LI Dong-qing2,ZHANG Tao2
        Vol. 26, Issue 2, Pages: 37-40(2012) DOI: 10.19455/j.mcgy.2012.02.010
        摘要：The authors studied the effect of moisture,species,and duration of service on stress wave speed in wood members located in historical buildings.The results showed that wood sample moisture content had a considerable effect on stress wave speed.The speed decreased when moisture content increased.Stress wave speed was found to be higher in the radial direction than in the tangential direction at the same moisture content.It was also found that species and duration of service also affected stress wave speed.  
        关键词：historical building;wood;stress wave velocity;moisture content;propagation direction   
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      • ZHANG Yu-ping,PENG Li-min,LV Bin,FU Feng
        Vol. 26, Issue 2, Pages: 41-45(2012) DOI: 10.19455/j.mcgy.2012.02.011
        摘要：Laminated flooring is one of the important wood flooring products in China.The current laminate flooring standards status in China,US,and Europe was presented and differences in these standards were discussed in this paper.The results provide valuable suggestions for updating Chinese wood flooring standard and improve export potential for laminated flooring.  
        关键词：Laminate flooring;standard;American;European   
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        Piactical Techniques

      • LIU Pei-yi
        Vol. 26, Issue 2, Pages: 46-50(2012) DOI: 10.19455/j.mcgy.2012.02.012
        摘要：Imitation wood furniture made with Polyurethane（PU）has been gaining popularity in China.Compared with traditional wood carving technology,PU injection molding saves production time and cost when furniture is made with a complicated appearance.In this article,the author summarizes key techniques of PU injection molding technology such as:raw material selection,mixing composition,mould design and production,casting condition and the PU imitation wood manufacturing process.  
        关键词：polyurethane;imitable timber;injection molding;furniture carving   
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      • WANG Jin-yi
        Vol. 26, Issue 2, Pages: 51-54(2012) DOI: 10.19455/j.mcgy.2012.02.013
        摘要：The author reviews the structure and features of commonly-used single and three-pass rotary dryers for particleboard production.Advantages,key processing parameters and setup of rotary dryers are presented.This paper will help particleboard manufacturers to select a proper dryer system to increase production efficiency.  
        关键词：rotary dryer;particleboard;feature;consumption   
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        Special Report

      • Vol. 26, Issue 2, Pages: 57-59(2012)
        摘要：为了社会的可持续发展,在发展经济的过程中注重环境保护,已成为社会的共识。生命周期评价（Life cycleassessment,LCA）,作为一种系统评价产品（材料）或活动（服务）的环境影响和环境管理的重要方法,亦日渐成为各工业领域研究的热点。材料行业应用LCA,可建立改善环境的可行目标。欧盟已经引领全世界,以生命周期来研究材料的性能和建筑设计的方法;美国绿色建筑评估体系（LEED）也开始在材料来源方面,试行制定基于环境LCA的标准。近十几年来,木材LCA的研究结果表明,木材在固碳作用、加工能耗、可循环利用等方面,具有非常显著的环境友好优势。1m3木材代替同体积非木质建材,可减少平均温室气体排放1.9t（CO2当量）。为了比较美国阔叶木与其他材料在保护环境方面的作用,2010年,美国阔叶木外销委员会（AHEC）启动了阔叶木LCA的研究。在2011年AHEC的欧洲年会上,专题讨论了LCA的作用,并发布了阔叶木LCA研究的初步成果。现将该研究成果摘编如下,旨在为我国阔叶木产品使用者提供参考。  
          
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