最新刊期
      期 0 ， 2020
      • Han Jian
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.003
        摘要：The relationship between hot pressing technology of manufacturing woven mat and curtain plybamboo and product quality was studied by orthogonal experiments.Based on experimental results,different hot pressing technology were compared with each other.The results demonstrated the optimum hot pressing technology was as follows:hot pressing temperature of 130 ℃～140 ℃,pressure time of 80 s per millimeter in board thickness,the highest hot pressing pressure of 3 5 MPa.The technology proved applicable by further experiments.  
        关键词：Woven mat and curtain plybamboo;Hot pressing technology;Product quality   
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        发布时间：2021-03-12
      • Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.011
        摘要：５生产批量、产品品种和柔性的关系单机或机组工艺线的工艺可能性的大小，在一定程度上反映了其柔性的大小，因为它们都是指工艺线适应不同生产要求的能力。其中包括技术和经济两个方面的内容，诸如，可完成工序的种类，加工零件的类型，适用的生产规模和单位加工成本等。...  
          
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        发布时间：2021-03-12
      • Lu Bin Wang Weixin
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.009
        摘要：By testing and analyzing on density of particleboard from 50 manufacturers,the authors concluded that the average qualification rate of manufacturers for internal density deviation of the board was 30%;the qualification rate for enterprises with imported equipment were 50%,and the qualification rate for enterprises with domestic equipment 20%.  
        关键词：particleboard;Internal deviation of board density   
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        发布时间：2021-03-12
      • Ai Muye
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.010
        摘要：Energy consumption in conventional wood drying has directly influence on economic benefits and environment impact.Combining with the current situation of conventional wood drying in China,counterparts of saving energy were put forward and discussed.  
        关键词：wood drying;Saving energy   
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        发布时间：2021-03-12
      • Issue 1, (1999)
        摘要：１９９８年１１月间，代表美国林产品业的美国林业及纸张协会ＡＦ＆ＰＡ的高级代表团对中国进行了为期２天的访问，以加强与中国政府和木材行业协会的联系与合作，进一步开发实木制品市场。代表团团长、美国阔叶木外销委员会（ＡＨＥＣ）新任主席ＲｉｃｈａｒｄＣｏｎｔｉ...  
          
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        发布时间：2021-03-12
      • Issue 1, (1999)
        摘要：不久前，一些市场观察家曾断言“木窗被淘汰了”。然而与此相反，木窗不仅幸存下来而且还将再一次开始流行，甚至已准备好夺回失去的市场。旧材料成为建筑业新宠木材作为一种天然材料在整个建筑和室内装修中十分得体，人们常把温暖、舒适、耐用和美观等概念同木材联系在一...  
          
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        发布时间：2021-03-12
      • Issue 1, (1999)
        摘要：中国林学会木材工业分会暨华东地区委员会“面向２１世纪，中国木材工业发展问题”研讨会于１９９８年１１月９日至１１日在福建省召开。来自全国１６个省市木材工业的科研、设计、生产、制造、使用、管理等９５个单位的代表１４１人参加了研讨会。中国林学会木材工业分会...  
          
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        发布时间：2021-03-12
      • Lu Xiaoning Yi Xianghua Zhang Zengbiao Wang Quanzhong
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.002
        摘要：In this paper deflection and creepage of oriented strand board (OSB) with new theoretic method analyzed. The board center deflection could be calculated with orthotropic plate models with modification of testing results so that it could be applied to OSB production.Meanwhile,creepage testing of the OSB with thickness of 6 mm and 10 mm was carried out and the relationship between the deflection and creepage was developed.The ratios of end deflection to initial one,the loss of MOR ,and the loss of MOE were further analyzed.  
        关键词：oriented strand board(OSB);deflection;Creepage   
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        发布时间：2021-03-12
      • Issue 1, (1999)
        摘要：“短周期工业材制造胶合板技术的研究”通过鉴定由中国林科院木材工业研究所王金林研究员主持的国家“八五”科技攻关专题“短周期工业材制造胶合板技术的研究”于１９９８年１２月通过成果鉴定。该项目在杨木材性与胶合板制造工艺以及单板、胶合板质量关系的研究、杨木单...  
          
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        发布时间：2021-03-12
      • Zhao Guangjie Liu Shaohua Cao Jinzhen
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.006
        摘要：In order to improve optical and dynamic properties of China fir ( Cunninghamia lanceolata ),such as superficial softness,low strength and inferior wearability,etc.,three experiments were proceeded in this study as follows:determination of dye solution permeability through the surface of the wood with various moisture contents under various temperature conditions,determination of stress strain curves of the wood tested,observation on cell deformation by microscopy.Based on the above experiments,the authors worked out the most suitable condition of dye solution permeability in the surface softening process of the wood tested,and further discussed the properties while compressing the surface of the wood tested along the radial direction under different moisture content conditions.The results showed:1)the most suitable condition for dye solution permeability was treatment temperature of 90 ℃,atmosphere vacuum alternately carried out and moisture content between air dried and fiber saturation point,2)the region Ⅱ with a big deformation in compressing along the radial direction was resulted from accumulation of earlywood defromation of the wood tested,3)instantaneous restoration in unloading did not appear in air dried specimens,while it did occur in specimens under 20 ℃ and 90 ℃ water saturated conditions.  
        关键词：China fir;Surface densification;Deforming fixation   
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        发布时间：2021-03-12
      • Zhu Jiaqi Liu Yanji Gao Chaoying
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.005
        摘要：The paper describes the results of applying flame retardant WFR 1 on treatment of rubber wood plywood.Based on laboratory experiment and pilot scale test,it was found that the plywood treated with WFR 1-2-a developed from WFR 1 was good in fire retardancy.The difficult flammability of the pilot test products reached grade B 1,GB/T 8625 88.And the glue shear strength of the products was slightly higher than that of the control.  
        关键词：Rubber wood plywood;Flame retardant treatment   
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        发布时间：2021-03-12
      • Li Yudong
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.008
        摘要：The necessity of using fire retardant treated wood,the main differences between first generation and second (new) generation of fire retardant,and the performance (especially the combustibility,hygroscopicity,strength,and warranty of product life) of fire retardant treated wood were discussed in this paper.  
        关键词：Fire retardant treated wood;Combustibility;Hygroscopicity;strength;Service life   
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        发布时间：2021-03-12
      • Wang Kai
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.001
        摘要：In this article,raw material construction,industrial distribution,products and quality,production techniques and management have been analyzed for China’s wood industry in the coming 21 st century.It shows that a sustainable green wood industry road should be firmly developed.  
        关键词：wood industry;Sustainable development;Green industry   
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        发布时间：2021-03-12
      • Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.012
        摘要：复合地板７０年代已在欧美国家兴起，中国在９０年代初开始生产。早期的复合地板，均以实木表板、芯板、底板复合而成，后来有以中密度纤维板（ＭＤＦ）或高密度纤维板（ＨＤＦ）等为芯层，表面覆贴单板的结构形式。本文所述特指实木复合地板，它保持了实木的特点，克服了...  
          
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        发布时间：2021-03-12
      • Zhou Qin Lu Xixian Huang Luohua
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.007
        摘要：Extractives from 7 plantation softwood species( Pinus massoniana,P.elliottii,P.taeda,P.yunnanensis,Larix olgensis,L.kaempferi,Cunninghamia lanceolata )were investigated.The results indicated that:1)hot water extractives from the 7 species ranged between 2 24% and 9 39% with L.kaempferi the highest;2)content of 1% NaOH extractives from the 7 species ranged between 11 8% and 18 00% with L.olgensis the highest;3)content in bezene alcohol extractives from the 7 species ranged between 1 67% and 2 90% with Cunninghamia lanceolata the highest;4)extractives from jurenile wood were higher than those from mature wood in all these 7 species;5)there was an inverse relationship between bezene alcohol extractives and permeability in all these 7 species.  
        关键词：Plantation softwood;Extractive   
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        发布时间：2021-03-12
      • Han Yujie Jin Weizhu Wang Achuan Cai Lixin Meng Qingjun
        Issue 1, (1999) DOI: 10.19455/j.mcgy.1999.01.004
        摘要：In peeling process,it is important to fix the turning center of bolts by measuring outlines and sizes of each bolt so that the veneer yield could be optimized.Measuring system of computerized laser scanners proved capable to make dynamic measuring,data processing and geometric pattern available.The system discussed in this paper was to set 5～7 laser scanners along lengthwise direction of a bolt.When the bolt was turning driven by power unit,the laser scanners made data measured.In each cross section,24 data were measured,which means one data for turning 15° could be collected.Then the data were processed by a computer and the distances from the turning axis to each measuring point of the bolt surface were calculated.At last,the data were transformed and an outline of the cross section of the bolt were developed on computer screen accordingly.The test results showed that the measurement accuracy of the system could reach ±1 mm.  
        关键词：Computer;Laser scanner measuring;Cross section of bolts   
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        发布时间：2021-03-12
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