最新刊期
      期 0 ， 2020
      • YU Wen ji 1,ZHOU Yue 1,REN Ding hua 1,WANG Tian you 1,LIANG Jing he 2
        Issue 3, Pages: 3-4(2001) DOI: 10.19455/j.mcgy.2001.03.001
        摘要：This paper is mainly focused on the study as follows: the different performance of methane diisocyanate （MDI） from abroad and domestic; influences of glue dosage and particle’s moisture on properties of wheat straw homogeneous board; effect’s appraise of the mixture of urea formaldehyde （UF） and MDI. The results showed that the use of MDI of imported or local made had no notable difference on board properties, the change of glue dosage in core layer and face layer had a remarkable influence on internal bond of board when the total glue dosage kept no change.  
        关键词：Methane diisocyanate;Wheat straw homogeneous board   
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        发布时间：2021-02-08
      • ZHU Jia qi,LUO Chao hui,HUANG Ze en
        Issue 3, Pages: 5-7(2001) DOI: 10.19455/j.mcgy.2001.03.002
        摘要：A method introduced in this paper was to insert wire net between wood veneers and then, join them together with adhesives. In this way, property of electromagnetic shield was imparted to wood based materials .The technique for manufacturing the composite was investigated through comparing the effect of different adhesives, different wire nets, different layers of wire nets on property of electromagnetic shield. Laboratory products showed good electromagnetic shield property and qualified glue bonding strength.  
        关键词：Wood based composite;Property of electromagnetic shield   
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        发布时间：2021-02-08
      • LIU Lei 1,ZHU Wei 2,ZHAO Li 2
        Issue 3, Pages: 8-11(2001) DOI: 10.19455/j.mcgy.2001.03.003
        摘要：Poplar wood / inorganic silicided composites （WIC） were made with Populus wenxianesis wood treated by silicic acid monomer solution （SAMS） and sodium silicate boron trioxide acetic acid respectively. The results showed that under the optimum conditions poplar wood / silicic acid composites had very good dimension stability and small leachability and at the complex treating enabled poplar wood / silicate composites better fire resistance and decay resistance compared with untreated wood.  
        关键词：wood modification;Poplar wood/inorganic silicided composites(WIC);SAMS;Complex treating   
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        发布时间：2021-02-08
      • Issue 3, Pages: 12-13(2001) DOI: 10.19455/j.mcgy.2001.03.004
        摘要：Based on tests in different drying conditions, shrinkage regularities of small diameter Birch logs were investigated so that a theoretical basis was provided for selecting and laying down a drying schedule of small diameter Birch log reasonably.  
        关键词：Drying shrinkage;Small diameter Birch log;Drying condition   
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        发布时间：2021-02-08
      • XU Man qiong,LU Zhen you,WANG Jie ying,LI Li,WANG Shu juan
        Issue 3, Pages: 14-16(2001) DOI: 10.19455/j.mcgy.2001.03.005
        摘要：In the 6 drying shrinkage indexes of 28 families of 10 year old Loblolly Pine wood of the radial shrinkage and volume shrinkage in oven and air dry conditions were all notable different at 0.01 remarkable level while the tangential shrinkage in oven and air dry conditions were notable different at 0.05 remarkable level. The results showed that the shrinkage of 16, 24, 27 and 32 family were lower among the 28 families. The variations of individual in a family were mostly higher than those among the families. These suggested that the effect of genetic improvement of forest tree could be better for individuals in a family. In addition, the oven and air drying shrinkage of wood from 28 families were closely correlated, e.g. tangential correlative coefficient was 0.8927, radial correlative coefficient was 0.8931, volume shrinkage was 0.8099, all of those reached a remarkable correlation at 0.01 level. The ratio between tangential and radial shrinkage （ T/R ）, the correlative coefficient in oven and air dry conditions was 0.8901 which also reached a remarkable correlation at 0.01 level.  
        关键词：Plantation wood;Loblolly Pine;Family;Drying shrinkage;Linear relation   
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        发布时间：2021-02-08
      • ZHANG Yuan qun,WANG Wen ning
        Issue 3, Pages: 17-19(2001) DOI: 10.19455/j.mcgy.2001.03.006
        摘要：Based on furniture modeling design, the moulding type in Ming style furniture was analyzed. It would be of significance to develop new furniture style with Chinese culture by applying Ming style moulding type.  
        关键词：Ming style furniture;Moulding;Furniture modeling design   
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        发布时间：2021-02-08
      • SUN You fu
        Issue 3, Pages: 20-22(2001) DOI: 10.19455/j.mcgy.2001.03.007
        摘要：In accordance with the factors of affecting sawn lumber deformation, the methods of controlling lumber deformation have been discusses systematically. Such as reducing the residual growth stresses in logs, treating the swelling and shrinkage of wood by drying technology, selecting rational sawing methods as well adopting physical and chemical modification of wood for its dimension stability. It could contribute the reference basis toward enhancing the quality of lumber and wood products.  
        关键词：Sawn lumber;Deformation;Controlling methods   
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        发布时间：2021-02-08
      • LI Xin gong 1,ZHENG Xia 2,WANG Dao long 1,CHEN Hong 1
        Issue 3, Pages: 23-24(2001) DOI: 10.19455/j.mcgy.2001.03.008
        摘要：This paper points out some problems in current designing of technology and equipment for moulded cement particleboard production line and offers concrete solutions to the problems.  
        关键词：Mould;Cement particleboard;Technology design   
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        发布时间：2021-02-08
      • HOU Zhu qiang,JIANG Xiao mei
        Issue 3, Pages: 25-26(2001) DOI: 10.19455/j.mcgy.2001.03.009
        摘要：A method was presented to condition the moisture content of wood samples in hygroscopic range and at ambient temperature. Without controlling temperature, the conditioning was just accomplished by regulating the humidity in a sealed chamber that the wood samples were placed. The method is low in the cost of apparatus and easy of manipulating.  
        关键词：Moisture content of wood;Conditioning;Adsorption   
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        发布时间：2021-02-08
      • WU Xiao jin,SHI Zhi hua
        Issue 3, Pages: 27-28(2001) DOI: 10.19455/j.mcgy.2001.03.010
        摘要：The effect of different digesting time for chips on manufacturing technology and properties of 2.5 mm thin medium density fiberboard （MDF） with Southern Type Poplar （Populus spp.） were investigated. The test result showed: by using Southern Type Poplar chips only and with 3 min digesting time, the thin MDF demonstrated good in properties and appearance; By using mixed chips of 75% Poplar and 25% Masson Pine （Pinus massoniana）, the quality of board, both their properties and surface color, was lower, but the feeding speed of hot press could be increased obviously.  
        关键词：Southern Type Poplar;Thin MDF;Digesting time   
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        发布时间：2021-02-08
      • LING Da sheng
        Issue 3, Pages: 29-30(2001) DOI: 10.19455/j.mcgy.2001.03.011
        摘要：Based on application experience of programmable logic controller （PLC） system in production line of medium density fiberboard（MDF）, the controlling effect between PLC and relay controlling system were compared and the effects of PLC system on board quality were also analyzed. Finally, some necessary attention and maintenance measures of PLC system were introduced.  
        关键词：MDF production line;PLC controlling system   
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        发布时间：2021-02-08
      • YANG Jia ju,CHENG Fang,LU Hong jun
        Issue 3, Pages: 31-32(2001) DOI: 10.19455/j.mcgy.2001.03.012
        摘要：The "Microcomputer assisted Wood Identification System WIP 89" was further deve loped into an initiation of automatic identification. A feature image analysis software was developed to automatically make divisions on identification between softwood and hardwood, abrupt and gra dual transition from earlywood to latewood for softwoods and ring porous wood, semi ring porous wood and defuse porous wood for hardwood.  
        关键词：Wood anatomy;wood identification;Microcomputer inquiry;Wood image   
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        发布时间：2021-02-08
      • HE Hong kui,LI Li,GUO Jian fang
        Issue 3, Pages: 36-37(2001) DOI: 10.19455/j.mcgy.2001.03.014
        摘要：A series introduction for several famous Italian sanding equipment manufacturing companies will be presented in this column respectively. The technical performance for different systems of sanding machine, such as Unisand 2000 and Technosand were introduced briefly in this issue.  
        关键词：Sanding machine;DMC   
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        发布时间：2021-02-08
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