最新刊期

    期 0 , 2020
    • Issue 1, Pages: 1-5(1991) DOI: 10.19455/j.mcgy.1991.01.001
      摘要:<正> 九十年代是我国经济和社会发展关键的十年,将进一步贯彻治理整顿和深化改革的方针,启动市场、调整结构、挖掘潜力,以提高经济效益为重点,持续、稳定、协调地发展经济。木材工业是整个国民经济的一个组成部分,受到整个国民经济的制约,在遵  
        
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    • Wang Tianyou Li Qiang Pan Raili
      Issue 1, Pages: 6-10(1991) DOI: 10.19455/j.mcgy.1991.01.002
      摘要:This article explored the technical feasibility of producing MDF from bamboos. The main technological parameters and some factors related to the quality of the board were studied. The results showed that the panel properties can be obviously affected not only by the parameters of defibering and hot-pressing, but also by the amount of adhesive and water-repellent agent. It is possible to manufacture high quality MDF from bamboos if these factors can be properly controlled.  
      关键词:Bamboos;Medium density fiberboard (MDF)   
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    • Zhang Yi
      Issue 1, Pages: 11-15(1991) DOI: 10.19455/j.mcgy.1991.01.003
      摘要:In this article, the relationship between the properties of gypsum particleboard and particle geometry, bark content as well as gypsum quality was discussed The results from the test showed that maintaining the length of wood particles is profitable to enhance the bending strength of the gypsum paticleboard; with the increase of the bark contents in wood partic]es, the bending strength of the board will be declined, but a small amount of barks mixed into wood particles as a filler can increase the strength significantly; the gypsum particleboard produced by different plants have great different properties; the evident relationship between the properties of gypsum-bonded particleboards and the quality of gypsum measured according to the industrial standard of gypsum plaster for building purpose as well as phase composition is not found  
      关键词:Gypsum particleboard;Particle geometry;bark content;Gypsum quality   
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    • Gu Lianbai
      Issue 1, Pages: 16-19(1991) DOI: 10.19455/j.mcgy.1991.01.004
      摘要:Pretreatments prior to kiln-drying,high efficient kiln-drying equipment, drying process and practical value of drying of Paulownia lumber are discussed in this paper. From industrial practice, it was shown that high efficient drying of paulownia lumber is feasible.  
      关键词:Paulownia lumber;High efficient drying;Drying kiln;Wood Processing residues   
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    • Liu Zhengtian Xing Shanxiang
      Issue 1, Pages: 20-24(1991) DOI: 10.19455/j.mcgy.1991.01.005
      摘要:This paper deals with some factors affecting on liquor phase acetylation of wood from three species (Pinus massoniana, Populus cathayana, Betuls platyphylla), and the dimension stability and decay resistance of acetylated wood. When acetic anhydride and xylene were used as treating liquorat the volume rate of 1" 1, the optimum reaction temperature was 120℃, and the reaction period was 7 to 11 hours. The antishrink efficiency of aeetylated wood could reach more than 60% when weight percent gain (WPC) was 15% or more The decay resistance of treated wood blocks with WPG of 11.75-17.98% was 3 to 34 times higher than that of the controls.  
      关键词:Liquor phase acetylation;dimension stability;Antishrink efficiency;decay resistance   
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    • Issue 1, Pages: 24(1991) DOI: 10.19455/j.mcgy.1991.01.006
      摘要:<正> 要使低值阔叶树材能有效地利用于层积材和开发多种结构产品的主要因素是胶合。对于各种次等的、低利用价值的阔叶树材,可用的各种室外型树脂及其配方的资料有限,在防腐处理材相互胶合方面的知识也存在着空白。  
        
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    • Guo Hao
      Issue 1, Pages: 25-30(1991) DOI: 10.19455/j.mcgy.1991.01.007
      摘要:Zirconia High-temperature Humidometer is a newly-developed equip ment, which is characterized by high heat efficiency and energy saving used in dryer In this paper, a great deal of test data and the principle of the equipment are a analyzed, a brief description on testing methods and solution to some technical problems during developing are also presented.  
      关键词:Zirconia;Zirconia High-temperature Humidometer;veneer dryer   
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    • Issue 1, Pages: 31-33(1991) DOI: 10.19455/j.mcgy.1991.01.008
      摘要:<正> 李鹏总理在最近的政府工作报告中指出:“无论是克服当前的经济困难还是实现国民经济的长期稳定发展,都必须高度重视和认真促进科学技术的进步”。实际上,无论是一个国家还是一个行业或某个企业,在其自身的经济发展中能否依靠科技进步来提高经济效益,在客观上已成为经济发展成败  
        
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    • Issue 1, Pages: 33-35(1991) DOI: 10.19455/j.mcgy.1991.01.009
      摘要:<正> 林产工业是国民经济的一项重要产业,发展林产工业对于解决林业“两危”问题可以发挥巨大的作用。建国以来,黑龙江省的林产工业已取得了很大成就,但因宏观调控不力,存在的问题也很突出,对此,应研究对策,采取有效措施加以解决。  
        
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    • Issue 1, Pages: 36-37(1991) DOI: 10.19455/j.mcgy.1991.01.010
      摘要:<正> 一、国内外发展概况1. 国外发展概况单板层积材(LVL)是一种以小径原木为原料,旋切成3毫米以上厚的单板顺纹拼接胶合而成的新型材料。早在1944年Luxford就揞出单板层积产品具有与实体木材相等的强度性能;1967年Koch用南方松旋切单板制造出高强度的胶合层积梁,从此开始了LVL作为结构材料的开  
        
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    • Issue 1, Pages: 38-40(1991) DOI: 10.19455/j.mcgy.1991.01.011
      摘要:<正> 一、引进的概况六十年代前后的二十多年间,木材干燥装备的建造主要沿用了苏联的设计模式,走“土木建筑”的程序,采用砖石或砖砼结构、自然循环或强制循环干燥室。从80年代初起,广东、上海、沈阳、吉林、北京.黑龙江、福建等地,一些以实木为原料的加工企业,先后从多家外国公司引进了多种类型、规模不一、数量不等的木材干燥装备。  
        
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    • Chen Xuhe Ye Kelin
      Issue 1, Pages: 41-44(1991) DOI: 10.19455/j.mcgy.1991.01.012
      摘要:After analyzing the needs of developing composite products from non-wood fibrous raw materials in China, this paper presents some research work done recently at CRIWI regarding manufacture of composite products from bamboo, flax, bagasse, cotton stalk, reed, soyabean stalk and tobacco stalk etc. It is found that these raw materials are suitable for making composite boards, which can be used for many applications as substitutes for composite boards made from wood raw materials. The future for developing non-wood fibrous composite products in China is promising.  
      关键词:Non-wood plant fiber;Particle board;Fiber board   
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    • Issue 1, Pages: 45-50(1991) DOI: 10.19455/j.mcgy.1991.01.013
      摘要:<正> 娑罗双属(Shorea)是龙脑香亚科(Dipterocarpideae)中最大的一属,系高大乔木,有16种。分布很广,东起印度、斯里兰卡,经缅甸、泰国至菲律宾。我国有2种,即云南娑罗双(S.  
        
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    • Issue 1, Pages: 51-52(1991) DOI: 10.19455/j.mcgy.1991.01.014
      摘要:<正> 海洋中使用的木材严重地遭到海生钻孔动物的破坏。据调查,仅由于船蛆的危害,我国每年损失优质木材达70万立方米,甚至危及广大渔民安全。因此,研究防治海生钻孔动物对木材的破坏,具有重要的现实意义。  
        
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    • Issue 1, Pages: 53(1991) DOI: 10.19455/j.mcgy.1991.01.015
      摘要:<正> 木材采伐量与林产品产量之间的关系和变化,是考核一个国家或地区木材利用水平的重要标志之一。下图是1987年欧洲、北美、苏联的木材采伐  
        
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    • Issue 1, Pages: 54-55(1991)
      摘要:<正> 国际林联第19届世界大会于8月5~11日在加拿大的蒙特利尔市召开。大会通过了各国林业专家提交的300多篇论文,为使广大读者及时了解这次大会的情况,现将其中有关林产品的论文题目摘录如下:  
        
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    • Issue 1, Pages: 56-59(1991)
      摘要:<正> 炉气间接加热高效干燥木材的工艺和设备由南京林业大学为主进行的炉气间接加热干燥木材的工艺和设备研究,已于1990年9月21日由林业部教育宣传司组织鉴定,与会专家给予充分肯定,认为该项技术属国内领先水平。这种新型木材干燥设备适用于我国中、小木材加工企业,可以批量生产,推广应用。  
        
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