最新刊期
      期 0 ， 2020
      • JIA Qian
        Issue 5, Pages: 3-5(2002) DOI: 10.19455/j.mcgy.2002.05.001
        摘要：This paper reviews the current status of wood product supply and demand in China. It then discusses countermeasures to solve the various problems.  
        关键词：Wood product;Supply and demand;Countermeasures   
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        发布时间：2021-02-08
      • FEI Ben hua,WANG Ge,REN Hai qing,YU Yan
        Issue 5, Pages: 6-9(2002) DOI: 10.19455/j.mcgy.2002.05.002
        摘要：This paper briefly discusses the current trend of wood frame housing in China and abroad. It also addresses and analyses the advantages and disadvantages of this type of housing construction. Through their research, the authors conclude that structural wood frame housing has great potential in China, although there are many problems that need to be solved.  
        关键词：Wood structural house;Architecture;Dwelling   
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        发布时间：2021-02-08
      • Issue 5, Pages: 10-13(2002) DOI: 10.19455/j.mcgy.2002.05.003
        摘要：Woodceramics, a new kind of material being developed in recent years, is made from wood/woody material impregnated with phenolic resin. When correctly processed, Woodceramics exhibits extremely high properties making it suitable as a structural material. It is also a very functional material due to its excellent thermal, electrical, magnetic and frictional characteristics. Furthermore, it is considered an eco friendly material because, when recycled, it can be crushed and applied as an inert soil conditioner.  
        关键词：Woodceramics;Functional material;Structural material;Ecomaterial   
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        发布时间：2021-02-08
      • DUAN Xin fang,LI Yu dong,WANG Ping
        Issue 5, Pages: 14-16(2002) DOI: 10.19455/j.mcgy.2002.05.004
        摘要：Preserving old trees and ancient wood structures are important areas of wood preservation. Non destructive evaluation （NDE） is a new technology being applied to this field. This paper investigates the application of NDE technology into the evaluation of the safety of ancient wood structures as well as the determination of the health of old trees in China. This paper discusses the major uses, common techniques and types of equipment used when using NDE technology in wood preservation applications.  
        关键词：Non destructive evaluation;Wood preservation   
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        发布时间：2021-02-08
      • QIN Te fu
        Issue 5, Pages: 17-20(2002) DOI: 10.19455/j.mcgy.2002.05.005
        摘要：This article deals with the mechanical properties of wood powder polypropylene composite panels and the morphology of the esterification of the wood surface while varying the level of wood content. Compared with 100% PP boards, the mechanical property results for the composite boards, except for impact strength, were observably improved with all wood powder contents. On the other hand, the morphology characteristics of the composites showed that the esterification treatment of the wood surface could improve the interfacial adhesion and dispersion between the polypropylene and wood powder. The SEM observation revealed that there were inlay structures in the composites, which meant that there also had been a physical combination between the polypropylene and wood powder.  
        关键词：Wood powder polypropylene composites;mechanical properties;Morphology characteristic;Esterification treatment of wood surface   
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        发布时间：2021-02-08
      • YI Song lin,ZHANG Bi guang,CHANG Jian min
        Issue 5, Pages: 21-23(2002) DOI: 10.19455/j.mcgy.2002.05.006
        摘要：Wood drying experiments were made under vacuum conditions using a pre heating stage of either superheated steam or air as a drying medium. The results indicated that the wood vacuum superheat steam drying preheating stage dried the wood more quickly;meanwhile, the quantity of condensed water on lumber surfaces was also more than that in vacuum air drying.  
        关键词：Drying of vacuum;Superheat steam;Pre heating stage   
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        发布时间：2021-02-08
      • GAO Yan qiu,WANG Zhao wu,ZHANG Qi sheng
        Issue 5, Pages: 24-26(2002) DOI: 10.19455/j.mcgy.2002.05.007
        摘要：In order to ensure the quality of structural boards,it is important to apply nondestructive testing equipment for on line examination of their mechanical properties. Function and principle of TMJ A on line nondestructive testing equipment, which was developed by the authors, are introduced in this article. Furthermore, factors affecting measurement error from testing methods and equipment mechanical and control systems, necessary for improving equipment accuracy and reliability, are also analyzed.  
        关键词：MOE;nondestructive testing;Measures error;Structural board   
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        发布时间：2021-02-08
      • REN Shi xue,FANG Gui zhen
        Issue 5, Pages: 27-29(2002) DOI: 10.19455/j.mcgy.2002.05.008
        摘要：During the application of 3 kinds of quaternary ammonium salts such as didecyl dimethyl ammonium chloride, didecyl dimethyl ammonium acetate and didecyl dimethyl ammonium propionate composed with copper to Poplar （ Populus ussuriensis ） wood, it was found that the above all had good anti leachability under low temperature conditions. According to leaching rate valuation, the results showed that the fixation of FFJ 2 was the highest among that of the three preservatives when chemical concentration was 0.5% and temperature was 15 ℃. However, the preservatives also had a negative effect on the wood surface causing the treated wood to have a blue color.  
        关键词：Quaternary ammonium salt;Anti leachability;Wood surface colour   
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        发布时间：2021-02-08
      • DENG Bei jie,ZHANG Ping,ZHONG Ling
        Issue 5, Pages: 30-32(2002) DOI: 10.19455/j.mcgy.2002.05.009
        摘要：In order to promote design regulation of overlay hollow core board components, the concept is presented in this paper. Furthermore, the concept is further expanded to the arrangement principles of inner sheathing for wood frames and the basic dimension requirements for fittings. Illustrations showing the function and methods of edge treatment are also presented. In conclusion, the ideal functions and perspectives are pointed out.  
        关键词：furniture;Overlay hollow core board components;Overlay material;Core stock;Inner sheathing   
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        发布时间：2021-02-08
      • XIE Yong qun 1,ZHANG Bi guang 2
        Issue 5, Pages: 33-36(2002) DOI: 10.19455/j.mcgy.2002.05.010
        摘要：Pneumatic drying is widely used in the production of medium density fiberboard （MDF） in China. And the simulation computation is one of the methods for managing and designing the tube type pneumatic drying system. Basic on international achievements in the subject, a mathematic model to make simulation computation on the drying system was set up. Test results showed the simulated system agreed with the actual system.  
        关键词：wood fiber;Pneumatic drying;Mathematic model;Simulation computation   
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        发布时间：2021-02-08
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