最新刊期
      期 0 ， 2020
      • WANG Kai,FU Feng,DING Mei rong
        Issue 1, Pages: 3-5(2001) DOI: 10.19455/j.mcgy.2001.01.001
        摘要：The supply and demand of wood in Northwest China is essential for the develop the west campaign. Based on available references, the feasibility was estimated and analyzed at two aspects of sand growth bushes and agriculture residues, and some preliminary suggestions were put forward for the supply and demand of wood in underdeveloped Northwest China.  
        关键词：wood;Supply and demand;Sand growth bushes;Agriculture residues;Northwest Chi?   
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        发布时间：2021-02-08
      • YE Ke lin 1,TAO Wei gen 2
        Issue 1, Pages: 6-9(2001) DOI: 10.19455/j.mcgy.2001.01.002
        摘要：A global integration of economy,science and technology along with national economic reforming and re structuring of government research institutions in China has created a great deal of impact on the development of wood science and technology, which must further strengthen the knowledge innovation and technology innovation in the new century in the country. Wood knowledge innovation will focus on wood resources structure in China. The relationship among properties, quality and bio formation as well as processing and utilization of plant materials such as wood from plantation forest will be further understood. Technology innovation will be carried out mainly by enterprises and technology breakouts could be expected in processing and utilization of plant materials like wood, value added manufacturing, better performance of wood based materials and better environment protection etc. The development of wood science and technology in China will be characterized in intersection and frontier with other sciences in the direction of plant material science, wood based composite material science, wood based reconstituted material science, wood based Eco material science, science of environment engineering of wood structure, as well as science of wood chemical processing  
        关键词：wood;Science and technology;Prospects;China   
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        发布时间：2021-02-08
      • CHEN Chang kun
        Issue 1, Pages: 10-12(2001) DOI: 10.19455/j.mcgy.2001.01.003
        摘要：In this paper,the author discusses the situation and problems of wood preservation industry in Chinese railway. The countermeasures in the new century were presented as the following: put into effect of wood preservation project; strengthen technical innovation; develop more exchange and cooperation among wood preservation organizations in both domestic and abroad.  
        关键词：Wood preservation;Problem;Countermeasu?   
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        发布时间：2021-02-08
      • REN Hai qing 1,JIANG Ze hui 2,SHAO Zhuo ping 3
        Issue 1, Pages: 13-14(2001) DOI: 10.19455/j.mcgy.2001.01.004
        摘要：Chinese Fir （Cunninghamia lanceolata） and Masson Pine （Pinus massoniana） were selected for study on fracture toughness. The test followed the standard of ASTM （E399） and GB 4161 84“Method for plane strain fracture toughness of metallic materials”. The testing results showed that K IC in TL direction of Chinese Fir was 4.812 MPa·mm 1/2 while Masson Pine was 9.667 MPa·mm 1/2 .Geometry and size of cracked specimen had no significant effect on fracture toughness. In order to satisfy the state of plane stress and stability of testing, thickness of specimen was recommended 2030 mm（decided by width of growth ring）.  
        关键词：plantation;Chinese Fir;Masson Pine;Fracture toughnessX   
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        发布时间：2021-02-08
      • YE Cui xian
        Issue 1, Pages: 15-17(2001) DOI: 10.19455/j.mcgy.2001.01.005
        摘要：In this paper, the platen drying technology for board from two species of deciduous small diameter logs （Schima superba and Castanopsis carlesii） was studied. The effects of platen drying parameters on drying quality of the tested specimen （include density, thickness losses, dimensional stability as well mechanical properties） were discussed. The results of the experiment showed that the properties of board from deciduous small diameter logs could be improved greatly by using platen drying technology.  
        关键词：Small diameter log;Deciduous tree;Board;Platen drying;drying quality   
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        发布时间：2021-02-08
      • ZHU Rui hua
        Issue 1, Pages: 18-20(2001) DOI: 10.19455/j.mcgy.2001.01.006
        摘要：Based on the testing of the curves for pressure displacement of particleboard hot press during pressure raising time, an approximate formula has been established . This formula could be used to guide the design of the hydraulic system of multiple opening and single opening particleboard hot press.  
        关键词：particleboard;Pressure raising time;Hydraulic system   
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        发布时间：2021-02-08
      • Issue 1, Pages: 21-22(2001) DOI: 10.19455/j.mcgy.2001.01.007
        摘要：我国森林资源匮乏 ,充分利用农业秸秆生产人造板对节约森林资源 ,保护环境有着重要意义。本文介绍了麦秸均质板的生产技术、板的物理力学性能以及麦秸均质板的双原料工艺 ,并论述了麦秸均质板的经济效益和社会效益  
        关键词：麦秸;异氰酸酯;生产技术   
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        发布时间：2021-02-08
      • Issue 1, Pages: 23-25(2001) DOI: 10.19455/j.mcgy.2001.01.008
        摘要：The effect of two kinds of paints on 2 ply wood composite floor dimensional stability was studied. The results showed that the floor treated with alkyd paint was better as far as the stability and cost concerned . The result also showed that the appropriate adoption of the paint type and composition would certainly improve the stability and beauty of the product.  
        关键词：Wood composite floor;dimensional stability;Paint formula   
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        发布时间：2021-02-08
      • ZHANG Qiu hui,WU Rui xuan,WEI Zheng ZHANG De rong
        Issue 1, Pages: 26-27(2001) DOI: 10.19455/j.mcgy.2001.01.009
        摘要：This paper discusses the modification of polyvinyl acetate （PVAc） emulsion based on the results of experiment and chose the optimun formula of the PVAc composition after the performance evaluation test of the PVAc emulsion.It was found that the modified PVAc showed excellent water resistance and good properties of adhesive strength.  
        关键词：PVAc emulsion;Modifier;Water resista?   
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        发布时间：2021-02-08
      • KUANG Kong tang
        Issue 1, Pages: 28-30(2001) DOI: 10.19455/j.mcgy.2001.01.010
        摘要：This paper presents a situation before transformation of 15 000 m 3/a medium density fiberboard （MDF） production line.The key equipment and technology of 30 000 m 3/a MDF production line were discussed. The transformation result showed that this expansion transformation reached the expect target.  
        关键词：MDF production line;Expansion transformation;Key equipment;Technology trX   
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        发布时间：2021-02-08
      • ZHANG Feng luan,LIU Tong chun
        Issue 1, Pages: 31-32(2001) DOI: 10.19455/j.mcgy.2001.01.011
        摘要：The SL N formaldehyde scavenger is a multipurpose and high efficient additive.As the molar ratio of UF resin at U∶F =1∶1.4, by adding 1.0 %1.5 % of SL N as formaldehyde scavenger, the free formaldehyde content in UF resin would be reduced about 80% and the formaldehyde emission of board could reached 25 mg/100g. It also could improve the physical and mechanical properties of board.  
        关键词：free formaldehyde;formaldehyde emission;SL N formaldehyde scavenger   
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        发布时间：2021-02-08
      • Issue 1, Pages: 33-34(2001) DOI: 10.19455/j.mcgy.2001.01.012
        摘要：A series introduction for several famous Italian sanding equipment manufacturing companies will be presented in this column respectively. In this issue, the general situation of DMC （Divisione Meccanica Castelli） and its main types of sanding machine as well as its processing technology were introduced.  
        关键词：Sanding machine;D?   
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        发布时间：2021-02-08
      • XU Mei qi
        Issue 1, Pages: 35-36(2001) DOI: 10.19455/j.mcgy.2001.01.013
        摘要：In this report, the physical properties and characters of high moisture resistance MDF made in New Zealand were introduced. The general application technology and its application in furniture manufacturing and interior decoration were also introduced.  
        关键词：High moisture resistance（HMR）;MDF;application   
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        发布时间：2021-02-08
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