最新刊期
      期 0 ， 2020
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.007
        摘要：刨花板耐老化性能研究的进展龙玲，陈士英（中国林科院木材工业研究所北京１０００９１）刨花板耐老化性能是指板材抵抗外界自然条件如干湿、冷热、霜雾、雨雪和紫外线镭射等的能力，因此要求建筑用刨花板应具有良好的耐老化性能。评定耐老化性能主要有两种方法：自然老化...  
          
        8
        |
        80
        |
        15
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352322 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.003
        摘要：A series of four fire retarders denoted by WFR was developed and the processesfor producing fire-retardant wood,plywood,particleboard and MDF were investigates,Thefire retarders were low toxic,decay-resistant and less leachable. The treated wood and panelshad excellent fire-resistant properties and good physi-mechanical properties. Besides,the re-lease of formaldehyde from panels was very low.  
        关键词：Fire retardant;Fire retarders;wood;plywood;particleboard;MDF   
        6
        |
        177
        |
        31
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352329 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.002
        摘要：This paper analyses the difficulty in using corn stalk alone to make particleboard. The feasibility of composite of corn stalk and flax shives to manufacture UF particleboardwas studied.The result showed that when the composite ratio of corn stalk to flax shives was50 to 50,the physical and mechanical properties of the particleboard could meet the particle-board standard,China(GB/T 4897 92).  
        关键词：Corn stalk-flax shives;particleboard;Manufacturing technique   
        3
        |
        47
        |
        2
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352088 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.004
        摘要：In this paper,effects of various pretreatment on reactivity of wood flour,thermo-flowability and solubility of chemically modificated wood flour were studied.Results shownthat three- dimensional network structure of lignin molecule in wood flour was changed afterpretreatment of heating and saturated chlorine solution,resulting in thermo-flowability ofhydroxyethyethylated and in decrease of thermal flow temperature of benzylated wood flourtested.Moreover,the solvent-s lubility of chemically modificated wood flour was improvedby various pretreatment.  
        关键词：wood flour;Pretreatment;chemical modification;Thermoflowability;solubility   
        4
        |
        148
        |
        11
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352351 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.010
        摘要：空心纤维板门的工艺试验与结构设计王维信（徐州人造板厂徐州２２１１１２）１前言空心纤维板门是广泛用于建筑物内部的片状门板，该产品结合强度高，外观、整体性能好，隔音绝热，造价低廉。随着国内建筑业的发展，对门的需求量激增，据调查，徐州市、县民用建筑及办公楼...  
          
        5
        |
        25
        |
        0
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352373 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.005
        摘要：Studies on exact measuring methods of stress wave velocity with modern electron-ic technology;the relationship among modules of elasticity with density and stress wave ve-locity of materials tested;the correlativity between stress wave and destructive testing ac-cording to relevant Chinese National Standard in force were conducted.The research resultsindicated that the bending modules of elasticity measured by non-destructive testing of stresswave was precise enough and it was possible to develop online quality control system of MDFaccording to mechanical properties and automatic control system of production line.  
          
        3
        |
        101
        |
        26
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352388 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.008
        摘要：木塑复合材的研究、生产及发展概述任玉坤（广州市木材工业公司研究所广州５１０１６０）木材塑料（或聚合物）复合材料简称塑合木或木塑复合材。它是由英语Ｗｏｏｄ－ｐｌａｓｔｉｃ（或Ｗｏｏｄ－ｐｏｌｙ－ｍｅｒ），Ｃｏｍｐｏｓｉｔｅｓ（或Ｃｏｍｂｉｎａｔｉｏｎ）...  
          
        5
        |
        310
        |
        23
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352158 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.009
        摘要：岩棉板用酚醛树脂的研制牛丽平，李华（中国林科院木材工业研究所北京１０００９１）１前言岩棉是以精选的玄武岩或辉绿岩为主要原料，经高温熔融制成的人造无机纤维。其主要化学成分为：ＳｉＯ＿２（４６％）、Ａｌ＿２Ｏ＿３（１５．６％）、ＭｇＯ（５．１％）、ＣａＯ...  
          
        6
        |
        266
        |
        1
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352166 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.006
        摘要：意大利木工机械进入中国的回顾（续五）刘苗，李黎意大利的木工机械中，圆锯机种类繁多，其结构型式变化也较大，这主要体现在进给方式的多样性上，按照圆锯机切削加工特征可以为为纵剖、横截和纵剖横截通用型三类，其主要的功能是家具和木制品生产工艺中对木材原料进行纵...  
          
        3
        |
        24
        |
        0
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352185 false
        发布时间：2021-03-12
      • Issue 6, (1995) DOI: 10.19455/j.mcgy.1995.06.001
        摘要：On the basis of theoretical calculation,the volumetric ratio of wood substances towater and air for the wood in basic density 0.36g/cm￣3 at 120% moisture content is about 1 :1:1.Therefore,the free water in wood will all be squeezed out as the volumetric squeezingratio of the wood reached 66%. Based upon this consideration,squeezing tests were made forgreenwood veneer of fast grown loblolly pine(pinus taeda)and poplar I-69(Populus del-toides Bartr cv." Lux " I-69/55)in various squeezing ratios by using various types specialgrooved plates. The moisture content of 2.02mm thick greenwood veneer of poplar I-69 wasdecreased remarkably after squeezing in 70%squeezing ratio and the distribution of moisturecontent of the veneer got more uniform. The differences among moisture contents of the sam-ples taken from different parts of the veneer from the same bolt got smaller remarkably alsoafter squeezing.More water were squeezed out of 2.38mm and 3.33mm thick greenwood ve- neers of loblolly pine in 60%squeezing ratio than in 40%squeezing ratio,and greater uni-form distribution of moisture content of the veneers were obtained in the former case. It wasevident that squeezing with grooved plates could effectively make the moisture content ofgreenwood veneer lower and more uniform distribution. It was also found that squeezing withvarious type of grooved plates showed different results.  
        关键词：Greenwood veneer;Squeezing;Grooved plates;Volumetric squeezing ratio   
        3
        |
        36
        |
        3
        <HTML>
        <L-PDF>
        <引用本文> <批量引用> 7352308 false
        发布时间：2021-03-12
      0