最新刊期
      期 0 ， 2020

        Review

      • LI Li
        Issue 4, Pages: 1-4(2007) DOI: 10.19455/j.mcgy.2007.04.001
        摘要：The several processing methods and utilization of wood cutting tools plated with membranes,used in China and aboard are introduced.Cutting characteristics and tool wear while machining different materials are also discussed.The results of experiments show that wood cutting tools treated with a plating membrane can prolong the sharpening cycle,reduce the time of resharpening and replacing tools,enhance processing efficiency and surface quality.  
        关键词：plating membrane;wood cutting tools;wearing;sharpening cycle   
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        发布时间：2021-02-08
      • LIN Lan-ying,FU Feng
        Issue 4, Pages: 5-8(2007) DOI: 10.19455/j.mcgy.2007.04.002
        摘要：This paper first reviews the research that has been done on finger-jointed lumber.It then analyzes the main problems that exist in the finger joint industry,such as low strength,poor quality,poor fit and surface roughness,etc.Finally,it presents some suggestions for future research on finger joints from finger cutter,adhesive and property evaluation methods.  
        关键词：finger-jointed lumber;properties;adhesive   
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        发布时间：2021-02-08

        Research & Development

      • ZHOU Yu-cheng1,HOU Xiao-peng2,HAN Ning2,ZHANG Ya-yong1,AN Yuan1
        Issue 4, Pages: 9-11(2007) DOI: 10.19455/j.mcgy.2007.04.003
        摘要：According to the characteristics of parquet,the authors of this article developed a new device for testing heat conduction performance for parquet.With the data obtained from the device,a mathematical model was set up by using curve fitting and generalized regression neural network（GRNN）.Results found that the model reached a nearly perfect fit,thus making it an effective method for research and for testing heat conduction performance for parquet and other laminated biomass materials.  
        关键词：Parquet;heat conduction;mathematics model;curve fitting;generalized regression neural network（GRNN）   
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        发布时间：2021-02-08
      • YANG Zhong1,JIANG Ze-hui1,REN Hai-qing1,QIN Dao-chun2
        Issue 4, Pages: 12-14(2007) DOI: 10.19455/j.mcgy.2007.04.004
        摘要：A carton with a polyethylene bag lining was used as a culture vessel for sweet gum veneer feeder strips.Soil,water,feeder strips,and specimens were sterilized and added to the culture bag for a decay test.Variance of analysis results by Statistical Analysis System（SAS）showed that the effect of fungi species and exposure periods on the weight loss and strength loss of wood decay was significant（at 0.05 level）,and the relationship between weight loss and strength loss due to biological decay were also very significant.The results suggested that the experimental method designed by the authors was a feasible way to assess wood decay.  
        关键词：wood decay;accelerated test;weight loss;strength loss;Statistical Analysis System（SAS）   
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        发布时间：2021-02-08
      • CAO Yong-jian1,DUAN Xin-fang1,CAO Yuan-lin2,LU Jian-xiong1
        Issue 4, Pages: 15-17(2007) DOI: 10.19455/j.mcgy.2007.04.005
        摘要：In order to develop a new way of producing wood-based panels without free formaldehyde emission,the authors studied the technology of using laccase to activate wood fibers.Fibers of liquidambar formasana and laccase were selected,and fiberboard was manufactured under the following conditions:pH 3.0,temperature 30～70 ℃,treatment time for 1,2 and 3 hours,laccase dosage at three levels of 10,20 and 30 U/g fiber.The results showed that the internal bond strength（IB） of fiberboard panels treated with laccase was higher than that of control panels.Laccase treating temperature,time and dosage all had significant influences on IB of the fiberboard.The optimum reactive parameters were pH 3.0,50 ℃,2 h and 20 U/g fibers.  
        关键词：Laccase;liquidambar formasana;fiberboard;treatment conditions;Internal bond strength   
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        发布时间：2021-02-08
      • XIE Min-fang,XIE Yong-qun
        Issue 4, Pages: 18-20(2007) DOI: 10.19455/j.mcgy.2007.04.006
        摘要：In this article,the relation between resin distribution on strand surfaces and mechanical properties of oriented strand board（OSB） was studied.The results found that the pressure of the spray nozzle determined the diameter of resin droplets,and higher pressure resulted in resin droplets with smaller diameter.Further tests on the mechanical properties of OSB showed that the IB,MOE∥ and MOR∥ of OSB were changed remarkably with the diameter of resin droplets and resin distribution on strand surfaces.Small diameter resin droplets and symmetrical resin distribution were helpful for improving mechanical properties for OSB.  
        关键词：resin distribution;mechanical properties;oriented strand board（OSB）   
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        发布时间：2021-02-08

        Research Bulletin

      • HU Chuan-shuang,LI Chong-gen,LI Peng,LI Kai-fu,LIAO Hong-xia,YUN Hong
        Issue 4, Pages: 21-23(2007) DOI: 10.19455/j.mcgy.2007.04.007
        摘要：Rectangular mortise and tenon joints are widely used in the furniture industry and wood timber engineering.In this study,the effects of tolerance,embedded length,and grain direction on the pull-out resistance of the rectangular mortise and tenon joint were investigated.The main findings were summarized as follows:1) The pull-out load vs.pull-out displacement curve of the rectangular mortise and tenon joint consisted of a linearly ascending part and a descending part.2) The pull-out load was improved by tightening the assembling tolerance within the range without the mortise and tenon joint causing damage during assembly.3) The pull-out load increased with the increase of the embedded length.However,the maximum pull-out load was found to be at 35 mm embedment length.4) The pull-out load along the grain direction was greater than that across the grain direction under the same conditions.  
        关键词：mortise-tenon joint;wood connection;pull-out load   
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        发布时间：2021-02-08

        Discussion & Suggestion

      • WU Pei-guo
        Issue 4, Pages: 24-27(2007) DOI: 10.19455/j.mcgy.2007.04.008
        摘要：The author presents the current status of both the particleboard（PB） and medium density fiberboard（MDF） manufacturing industries in China,then analyses the important role which the domestically manufactured PB and MDF equipment plays in China’s wood industry,as well as identifying the main problems.Finally,he makes some suggestions for further machinery manufacturing development for both industries.  
        关键词：PB;MDF;domestic complete equipment;strategy   
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        发布时间：2021-02-08
      • MA Qi-sheng
        Issue 4, Pages: 28-30(2007) DOI: 10.19455/j.mcgy.2007.04.009
        摘要：The author first reviews the development of China’s woodworking machinery industry since the 1990’s,and analyzes the present situation and problems.He then discusses the importance of a well-known brand of equipment for keeping China’s woodworking machinery industry developing,sustainable,and healthy.Finally,the author suggests a strategy to build a regional,well-known brand of equipment in order to promote industry competitiveness.  
        关键词：woodworking machinery;regional well-known brand;industry competitiveness   
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        发布时间：2021-02-08
      • ZHANG Shi-yuan
        Issue 4, Pages: 31-33(2007) DOI: 10.19455/j.mcgy.2007.04.010
        摘要：Oriented strand board（OSB） is a technique-mature and environmental-friendly panel,which has already been widely applied as a building and decorating material in the developed countries.Since 2001 when first imported to China,OSB has made a great progress in the application.After presenting the characteristics and manufacturing technology of OSB and it’s applications in China and aboard,the author analyzes the prospects of further development of OSB in China in the coming years.  
          
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        发布时间：2021-02-08

        Piactical Techniques

      • QIN Li,ZHAO You-ke,HUANG Rong-feng,LU Jiang-xiong
        Issue 4, Pages: 34-36(2007) DOI: 10.19455/j.mcgy.2007.04.011
        摘要：One end(randomly selected) of freshly cut logs of Pinus massoniana and Mytilaria laoensis were coated with an end coating material.The length of the blue stain and end checking of both ends of the logs were measured after a fixed time.The results showed that the length of blue stain and end checking in the logs at the coated ends were much less than that of the uncoated ends.  
        关键词：ANCHORSEAL;end coating;logs;blue staining;end checking   
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        发布时间：2021-02-08
      • LIU Xian-zhong,WU Zhi-hui
        Issue 4, Pages: 37-39(2007) DOI: 10.19455/j.mcgy.2007.04.012
        摘要：This article discussed the painting technology for American style furniture.By analyzing the components of wood stains,as well as staining method and mechanism,it illustrated the function and application for each wood stain.A technological process and key operations for imitating antique styling were also presented.  
        关键词：American style;antique painting;wood stain;coating design;technology   
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        发布时间：2021-02-08
      • LI Chun-yan,SHEN Xiao-bin,SHI Yang
        Issue 4, Pages: 40-42(2007) DOI: 10.19455/j.mcgy.2007.04.013
        摘要：A climate chamber was used to study the emission of formaldehyde from plywood.Results showed that under certain conditions,the concentration of formaldehyde emitted quickly increased to a maximum value in several hours,and then began to decline until it reached a steady value.In the steady emission state,environmental factors had remarkable effects on formaldehyde and other VOC emissions.A test on the composition of the emissions found the presence of eight different VOCs.  
        关键词：climate chamber;plywood;volatile organic compounds（VOC）;emission   
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        发布时间：2021-02-08

        Practical Techniques

      • GAO Yan1,ZHOU Xiong-zhi1,LEI De-ding1
        Issue 4, Pages: 43-45(2007) DOI: 10.19455/j.mcgy.2007.04.014
        摘要：The basic starting point of a technology innovation system,which takes the company as the main body,is to strengthen scientific and economic links,make technological innovation be market-oriented,optimize technology links,reduce production costs and meet maximum production requirements.Based on this description,this article made a full analysis on how to innovate such a technology.Four aspects of research were used for the analysis:determination of the research path,achievement examination,and combining technology innovation with management innovation.Finally,methods for Chinese manufacturers to establish an innovation system were presented.  
        关键词：technology innovation;management innovation;wood-based panel manufacturers   
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        发布时间：2021-02-08
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