最新刊期

    期 0 , 2020
    • Xu Changyan Hua Yukun Lian Yousheng
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.002
      摘要:The water soluble phenol formaldehyde resin(PF) penetration into poplar flakes was investigated microscopically. The results of microscopic observation on the glue line and internal bond testing of the board showed that the condensed water would dilute PF and thus increase its flow and penetration into flakes. The results also indicated that the penetration into flakes decreased with increasing average molecular weight of the resin. It concludes that the resin with higher average molecular weight could be used in steaming vacuum pressing than the resin used in conventional pressing.  
      关键词:Steaming vacuum pressing;Reflected fluorescence microscopy;Injection   
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      发布时间:2021-03-12
    • Lu Bin Tang Zhaoqun Zhou MeiJian
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.009
      摘要:Quality of plywood made in China is briefly reviewed and analyzed in order to draw attention of relevant authorities and enterprises so that the plywood industry in China could be developed in a healthy way. The data were based on testing results provided by National Center for Supervision and Testing Quality of Wood based Panels.  
      关键词:plywood;quality   
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      发布时间:2021-03-12
    • Luo Tushou Shi Zhenhua
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.006
      摘要:The efficiency of anti mould and anti stain of rubberwood plywood treated with WFR 1 2 a was investigated. The results showed that the samples had superior effect on blue stain fungi and positive effect on other fungus.  
      关键词:flame retardant;Anti mould and anti stain;rubberwood;plywood   
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      发布时间:2021-03-12
    • Issue 2, (1999)
      摘要:木材工业国家工程研究中心通过验收1月22日,木材工业国家工程研究中心顺利通过了由国家计委、国家林业局组织的专家现场验收。国家林业局党组成员、中国林科院院长江泽慧,国家计委高新技术产业发展司司长马德秀等领导参加验收,并发表重要讲话。江泽慧院长说,科技人...  
        
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      发布时间:2021-03-12
    • Teng Tonglian Zhou Yongdong Meng Jinming Chen Shenglan Piao Chenghan
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.005
      摘要:The development of both elastic and plastic strains of timber surface and internal layers from fast growing plantation wood Populus tomentosa, Pinus massoniana etc. was studied. Results showed that the hardness level of drying schedules had much influence on both the drying strain developed and the time when it reached its maximum value. At the primary stage of drying, the maximum value of elastic tension strain of the timber surface increased with drying temperature rising, and decreased with increment of equilibrium moisture content ( EMC ). If the EMC could be correctly set at the primary stage of drying, the maximum value of the tension strain could be controlled and then good drying quality could be gained.  
      关键词:Fast growing plantation wood;wood drying;Elastic strain;Plastic strain;Shrinkage   
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      发布时间:2021-03-12
    • Li Kangqiu
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.011
      摘要:The reason of surface checks developed during post forming process of thermosetting resin impregnated decorative laminated sheet was discussed. And the prevention measures about the check was suggested, such as improving elasticity of impregnating resin, controlling moisture content of decorative laminated sheet, controlling pressing speed, and controlling bending radius etc.  
      关键词:Surface check;Post forming   
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      发布时间:2021-03-12
    • Chen Yuhe
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.008
      摘要:Components of dyeing solution of water soluble dyestuff and dyeing process are introduced in this paper. Parameters of wood dyeing including surface dyeing and inner dyeing were given in detail. Several important factors affecting wood dyeing were discussed. Suggestions on developing wood dyeing industry in China were expressed.  
      关键词:wood;Water soluble dyestuff;Dyeing technology   
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      发布时间:2021-03-12
    • Du Guanben Ma Hongyong Yin Jianxiong Zhang Jinhui
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.004
      摘要:Based on character of structure formation of urea formaldehyde (UF)resin, a new synthesizing technology was designed for making low formaldehyde emission UF resin for bagasse medium density fiberboard(MDF). Commercial bagasse MDF made with UF resins synthesized with the technology showed reduced formaldehyde emission (approximate 20 mg/100g) with satisfied strength property.  
      关键词:Bagasse MDF;UF resin;Low formaldehyde emission   
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      发布时间:2021-03-12
    • Chen Shiying
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.001
      摘要:Pallet is a kind of tool for storing and transporting goods.Molded particle pallet is produced with branch and small diameter wood so that utilization ratio of wood is raised.This paper studied key process in manufacturing molded particle pallet.Wood species used were poplar and pine.Testing results showed that the performance of molded particle pallet was as same as that of pallet made of lumber.  
      关键词:Molded particle pallet;Forming technology;mechanical properties   
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      发布时间:2021-03-12
    • Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.013
      摘要:磨削加工是木材切削加工中广泛应用的一种工艺加工方式,磨削加工可用来消除前道工序在木材制品表面留下的加工痕迹和缺陷,使木制品零件获得一定的尺寸、形状和表面光洁度,为后继的装饰工序打下良好的基础。按磨具形状的不同,可以将磨削加工分为盘式、带式、轮式、辊式...  
        
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      发布时间:2021-03-12
    • Fang Guizhen Li Jian Su Runzhou
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.007
      摘要:Chemical construction changes of components in esterification between wood and polycarboxylic were analyzed by electron spectroscopy for chemical analysis(ESCA) in this paper.ESCA spectra showed with increment in BTCA concentration,the ratios of C 1(alkyl carbon) and C 4(carbon of carboxyl and ester)were increased and C 2(hydroxyl carbon)in C 1s decreased;the ratios of O 1(oxygen of carboxyl and ester) were increased and O 3(hydroxyl oxygen)in O 1s decreased.This proved that esterification between polycarboxylic acid—1,2,3,4 butanetetracarboxylic acid (BTCA) and wood components occurred at elevated temperature with catalyst.This conclusion was in correspondence with analysis of FTIR and CP/MAS 13 C NMR spectra.  
      关键词:Polycarboxylic acids;Esterification;Crosslinking reaction;ESCA   
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      发布时间:2021-03-12
    • Zhang Fuxing Zheng Zhifeng Yuan Yongsheng Zhang Hongjian
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.003
      摘要:Since quality of wafer is one of the most critical factors to affect final quality of bamboo based waferboard, it is necessary to investigate main wafering factors affecting wafer quality, such as knife gap, cutting angle and cutting speed. Experimental testing results on bamboo species Dendrocalamus giganteus and Pleioblastus amarus with flatness and thickness deviation as quality indicators determined the best quality of the wafer, as well as the optimum wafering conditions through a series of single factor experiments and multi factor orthogonal experiments.  
      关键词:bamboo;Waferboard;Wafer   
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      发布时间:2021-03-12
    • Ruan Weizhi Shi Zhiping Pan Bin
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.010
      摘要:This article analyzed the potential of saving energy and its possibilities in wood based panel factories by optimizing technological designing and adopting new techniques.  
      关键词:Wood based panel;Saving energy   
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      发布时间:2021-03-12
    • Issue 2, (1999)
      摘要:本色竹木家具流行江苏为净化生活环境,提高生活质量,近来一些新型环保家具正日益成为江苏家具市场上的热点,首当其冲的是本色木制家具。由于不经过任何油漆和人工装饰材料覆面和封边,仅用天然腊抛光,可使室内空气免受污染,同时家具风格清新自然,朴素优雅,轻松明快...  
        
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      发布时间:2021-03-12
    • Fu Shengyuan Yu Hongwei He Yajuan Zhang Xinqing
      Issue 2, (1999) DOI: 10.19455/j.mcgy.1999.02.012
      摘要:Prunus wood floor surface was chemical treated. The results showed that: 1) 70%~80% of the tested specimen could be upgraded according to National Standard GB/T 15036-94; 2) anti mould property was improved; 3) finishing safety was satisfied.  
      关键词:Prunus wood floor;Chemical treatment;Anti mould   
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      发布时间:2021-03-12
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