最新刊期

    期 0 , 2020
    • Issue 1, (1994)
      摘要:我国木材干燥近期(到2000年)发展的设想1.常规干燥仍然是发展的重点,为取长补短,也可因地制宜发展其他干燥方法。对各种干燥方法应进行全面细致的研究、分析和比较,以利于指导应用和发展。2.对于常规干燥设备方面应继续对壳体、通风、调湿、运输、材料、防腐...  
        
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.002
      摘要:The technology of making fly-ash particleboard has been developedwith fly-ash from two different power plants.The results showed: ①The Quan-tity and kinds of additives should be different depending on the chemical com-positons and the quality of different fly-ashes.②The ratio of fly-ash and woodparticle was the most outstanding factor which affected the mechanical and phys-ical properties of fly-ash particleboard.③The density was a very notable factoraffecting the properties of fly-ash particleboard and it should not be lowerthan 0.90g/cm ̄3.④Increasing the resin content could improve the MOR of fly-ash particleboard,but the effect was not remarkable when resin content was biggerthan 9%.Brief information on the productive experiment, primary economical analysisand prospect of the market of fly-ash particleboard was also introduced in the article.  
      关键词:Fly-ash;Fly-ash.particleboard;Additive;Ratio of fly-ash andwood particle   
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      发布时间:2021-03-12
    • Qian Dawei
      Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.005
      摘要:hickness variation of particleboard plays an important role in the factors of affecting the accuracy of panel furniture. The results indicated that the accuracy of panel furniture was influnced by the thickness variation of particleboard obviously.  
        
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    • Wang Fenghu
      Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.003
      摘要:A method of alkaline pretreatment of particles was designed to produce three types of chips.The pretreatment of particles in 1%aqueous solution of NaOH for 30 minutes offered a possibility of producing PF bonded particleboards with minimal irrecoverable swell and a reduction in thickness swelling.The method used in this study could be used to produce more stable PF particleboard.  
      关键词:PF particleboard;Alkaline pretreatment;Irrecoverable swell;dimensional stability   
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.001
      摘要:面向21世纪的木材工业王恺,陈绪和(中国林科院木材工业研究所北京100091)木材工业是现代林业的重要组成部分,是林业中直接产生附加值的行业,它肩负着优化森林资源利用,满足社会对木材和木质材料产品不断增长的需求,促进建设现代绿色文明,保障林业实现持续...  
        
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.009
      摘要:The variations in fiber length, specific gravity and comp0sition content of three Italian poplars clones for pulpwood Tvere reported in this pa-per. Ir radial direction,fiber length,specific gravity and cellulose content of wood increased from pith outward, and level off after 8 to 10 years old;lignin and pentosan content decreased from pith to bark, and level off after 10 years old. The radial variation of fiber length-width ratio was similar to the patten of fiber length.Along the stem height,fiber Iength decreased gradually and specific gravity increased from base upward.Based on radial variation of fiber length and specific gravity at 1.3 m height within trees,the duration of juvenile peroid was determined about 8 years old. Its lower specific gravity is improved by tree breeding. Based on variations in the whole tree’s fiber length,specific gravity,chemi-cal composit and growth property,harvesting of Italian populars for pulp-wood at 8 to 9 years old was good.  
        
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.010
      摘要:用含水率为43%~15%的杨木木片制出的刨花,其筛分值变化不大。含水率低于15%时,制出的刨花明显变碎。木片含水率低于20%制备刨花时,可以消除由于杨木胶质纤维含量高而出现刀门堵塞的现象。  
      关键词:杨木木片含水率;刨花筛分值;刀门堵塞   
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      发布时间:2021-03-12
    • Gao jianmin
      Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.006
      摘要:On the basis of analyzing the drying feasibility and the study on drying characteristics of small diameter birch,locust and ash logs,the drying technology of small diameter logs was summed up. The practice of production indicated that it was feasible to use this technology for drying small diameter logs.  
      关键词:Small diameter logs;Logs drying;drying schedule;Drying te-chnology   
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.004
      摘要:Quality control is essential for the effective production supervi-sion as well as for the standardization of the product properties.The proper-ties of particleboard depend on a variety of influencing factors.The exampleof a Chinese particleboard plant shows which influencing factors take effect onthe individual basic operations of the board production and which productiondata have to be acquired for the production control.These data as well as theparticleboard characteristics have been determined according to a test schedulewithin a three-month period by the employees of the plant.Analysis and eva-luation of the data were carried out. The most important results are represen-ted in the following work. Furthermore,measures are proposed for the qualityimprovement of the particleboards of this plant.  
      关键词:particleboard;Quality surveillance;Data precessing   
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.008
      摘要:A new kind of glue-applying automatic control system was developed.With this system,glue applying can be carried out evenly and glue can be well-distributed on particles,resulting in reduced adhesive consumption,improved working condition and reduced labour intensity.  
      关键词:particleboard;Glue applying;Microcomputer automatic control system   
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.007
      摘要:The samples of larch(Larix gmelini) were treated with 1%:solu-tion of NaHCO3. The dimensional stability,moisture absorption,functionalgroups and ultrastructure changes of the samples before and after the treat-ments were analyzed and compared using IR,SEM and chemical analysis.Themain factors which influence the dimensional stability are found. The researchresults laid a foundation of modification and utilization of larch wood.  
      关键词:Larix gmelini;dimensional stability;Moisture absorption   
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.011
      摘要:三丁基锡(TBTO)木材防腐剂国外发展现状及在我国的展望李云,施振华(中国林科院热林所广州510520)1前言三烃基锡化合物早于1954年被建议用作木材防腐剂 ̄[1],并由此促进了在荷兰、美国、日本和英国对三烃基锡化合物的研究 ̄[2]。以后采用标准木...  
        
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    • Issue 1, (1994) DOI: 10.19455/j.mcgy.1994.01.012
      摘要:关于应用新技术、新设备提高锯材“三率”的探索范传华,王世忠,迟昭义(黑龙江省迎春林业局虎林县158403)迎春林业局贮木加工厂现有制材车间4个,年锯材能力2万立方米,主要产品有出口材、订制村、地板块和木片等系列产品。近年来广泛采用了制材新技术、新设备...  
        
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