最新刊期
      期 0 ， 2020
      • Lu Bin Tang Zhaoqun
        Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.008
        摘要：Quality of PB made in China is briefly reviewed and analyzed for drawing attention of rele vant authorities and enterprises so that the PB industry in China could be developed in a healthy way and in good order. The data were provided by National Center for Supervision and Testing of Quality of Woodbased Panels.  
        关键词：Particleboard (PB);quality;national standard   
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        发布时间：2021-03-12
      • Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.009
        摘要：２４０及３２０目二道砂纸带；开料、四边铣榫时要求边线与端线相互垂直，凸凹榫在板坯厚度方向上要求高度统一，二者配合时，地板下面两边的高低差值不得大于０．１ｍｍ。③胶合阶段：各胶层胶合均采用我公司自行研制的防水胶，并要求涂布均匀，胶合强度应达到或超过ＧＢ９８４６．４中Ⅰ类胶合板的规定要求。采用以上结构和生产工艺生产的复合地板比普通实木地板有如下优点：①由于采用五层对称结构，芯层与其它各层纹理相互交错，使其因大气湿度变化而产生的变形极小，尤其是最厚的芯层是由小木条纵拼而成，能自动制约和弥补各小木条的微小干缩或湿胀，这就使整张产品在尺寸稳定性上是其它任何实木地板不可比拟的。②此种结构方式和工艺可以使成品在花色、品种上有更多的延伸。如：ａ．通过改变装饰层的树种和拼花形式，即可获得不同的产品品种；ｂ．热压后的板坯开料尺寸不同，即可获得不同幅面产品。我公司现在产品的幅面就有４００ｍｍ×４００ｍｍ、４００ｍｍ×１２００ｍｍ、３００ｍｍ×１２００ｍｍ等多种不同规格，以满足不同用途的需要；ｃ．还可以按客户的需要进行油漆、阻燃处理、厚度调整等。③装饰层的切片经过剪切挑选工序，可以避免诸多木材的天然缺陷，如初腐、变色、虫孔、节疤等?  
          
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        发布时间：2021-03-12
      • Sun Guangrui
        Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.002
        摘要：The relation among six factors (particle size and particle geometry, board density, resin consumption, prepressing temperature, closing time and compressing thickness) and particleboard mat spring back after prepressing was studied. The results showed that wood properties and particle’s rigidity decrease were the main reasons of the spring back; and that all of reconstituting factors (particle size and particle geometry, board density, resin consumption and prepressing factors) affected the spring back. It concluded that proper technological counter measure could be adopted to reduce the spring back.  
        关键词：prepressing;Particleboard mat;Spring back   
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        发布时间：2021-03-12
      • Zhao Guangjie
        Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.006
        摘要：General explanations concerning about fluctuation phenomena which widely exist in nature, classification of the fluctuation and characteristics of all kinds of fluctuation spectra were given in this article on the basis of achievement in modern wooden material environmental science. This article focused on characteristics of the fluctuation spectra of wood structure and creature physical rhythm. According to their common point, which is the relativity between the two fluctuation spectra, the author represented some superficial illustrations and pointed out the reason why people are so fond of biological material——wood and woods grain structure from ancient time.  
        关键词：Wood grain;Rhythm;Fluctuation   
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        发布时间：2021-03-12
      • Li Xiaoling Teng Tonglian
        Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.004
        摘要：Air drying features of 8 short rotation plantation species in China were studied. The results could be used for providing guidelines of how to economically and scientifically organize air kiln drying short rotation plantation lumber.  
        关键词：Air drying;Predrying;Short rotation plantation lumber   
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        发布时间：2021-03-12
      • Pu Anbin Lu Wenxin
        Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.003
        摘要：In ordinary particleboard reinforcing procedure with woven glass fabric, the fiberglass is pressed by particles and appeared waved. The situation decreases reinforcing function of the fiberglass. In order to avoid this event, a twice forming and pressing technology was developed. Experiment results showed that modules of rupture( MOR ) and modules of elasticity( MOE ) of the board increased by 10%, respectively compared with ordinarily reinforced particleboard with fiberglass. In this study, various coupling agents were also used to improve strength of particleboard.  
        关键词：Woven glass fabric;Reinforcing particleboard;Coupling agent   
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        发布时间：2021-03-12
      • Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.007
        摘要：木材的数控加工与数控机床（一）李黎计算机数字控制（ＣｏｍｐｕｔｅｒＮｕｍｅｒｉｃａｌＣｏｎｔｒｏｌ）简称ＣＮＣ是指“用数字化信号对机床运动及其加工过程进行控制的一种方法”。数控机床（ＮｕｍｅｒｉｃａｌＣｏｎｔｒｏｌＭａｃｈｉｎｅＴｏｏｌｓ）是技术密集...  
          
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        发布时间：2021-03-12
      • Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.012
        摘要：微波干燥技术在竹制品生产中的应用刘昌铎微波可以对木材及胶合板等木质材料进行快速、高效的干燥处理，同样也能对竹制品进行干燥、杀虫、防霉处理。南京七七二厂微波研究所通过反复的试验，已成功地设计和制造了相应的微波干燥设备。本文介绍新研制的用于竹席干燥的特大...  
          
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        发布时间：2021-03-12
      • Issue 6, (1997)
        摘要：综合信息简讯第三届中国国际家具展览会圆满结束今年９月在上海国际展览中心和上海世贸商城举办的第三届中国国际家具展览会创下中国家具史的三项记录：规模最大，占地３万ｍ２；海外参展商最多，有１７个国家和地区的代表团参展，占地面积及参展企业数均占整个展会参展企...  
          
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        发布时间：2021-03-12
      • Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.001
        摘要：This paper studied physical mechanical properties and molding performance of polypropylene (PP) fiber/wood fiber composite. Property changes caused by mixing both virgin PP fiber and pretreated PP fiber with wood fiber was analyzed. The test results showed that adding virgin PP fiber could improve molding performance of the composite, but made the physical mechanical properties reduced. Pretreating PP fiber proved to be a good way of increasing the physical mechanical properties of the composite.  
        关键词：Wood/plastic fiber composites;polypropylene fiber;pretreatment;Molding performance   
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        发布时间：2021-03-12
      • Zuo Jianhua
        Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.005
        摘要：An autocontrol scheme for MCS 51 microcontroller was designed for fiberboard hot press control. By using the system, pressing time could be automatically changed with the temperature of hot press platen.  
        关键词：Hot compressing;Microcomputer control;microcontroller   
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        发布时间：2021-03-12
      • Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.011
        摘要：立足国内、面向世界，森林是未来的关键访芬见闻之一：芬兰的森林工业姜征ＯｖｅｒｖｉｅｗｏｎＦｉｎｎｉｓｈＦｏｒｅｓｔｒｙＩｎｄｕｓｔｒｙＪｉａｎｇＺｈｅｎｇ金秋九月，应芬兰外贸协会的邀请，笔者随中国记者代表团前往芬兰进行采访。十余天的访问时间里，走访了...  
          
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        发布时间：2021-03-12
      • Issue 6, (1997) DOI: 10.19455/j.mcgy.1997.06.010
        摘要：连续平压热压机（之五）欧阳琳３．３热压板连续平压热压机的热压板与间歇式热压机热压板的功能虽然相同，但由于这两种热压机工作原理有所不同，加之连续平压热压机的幅面较大，因此对热压板的结构、供热、材质和制造等都有许多特殊的要求。３．３．１热压板表面要有良好...  
          
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        发布时间：2021-03-12
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