最新刊期
      期 2 ， 2014
      • WANG Bao-jin,HAO Jing-dong,CAO Ping-xiang,DING Jian-wen,GUO Xiao-lei
        Vol. 28, Issue 2, Pages: 5-9(2014) DOI: 10.19455/j.mcgy.2014.02.001
        摘要：Small six-sided cylinder precision molding machine,as one of the key machines in hexagon large section glulam production,is used to cut a rough six-sided cylinder into small sixsided cylinder with accurate dimension and good surface quality.In this paper,the authors described the 3DDesign and Simulation of small six-sided cylinder precision molding machine based on SolidWorks,which provided a basis for developing physical prototype.  
        关键词：small diameter logs;SolidWorks;small six-sided cylinder;precision molding machine;3Ddesign;simulation   
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      • Vol. 28, Issue 2, Pages: 56-57(2014)
        摘要：<正>2013年我国木地板产品销量增长据中国林产工业协会地板专业委员的不完全统计,2013年,我国木地板销量约4亿m2,同比增长约6.0%。主要木地板产品的销量如下:1)强化木地板:22 400万m2,同比增幅6.2%;2)实木复合地板:9 460万m2,同比增幅10.0%;3)实木地板:4 250万m2,同比增幅1.9%;4)竹地板:3 500万m2,其中:全竹地板产量为2 500万m2;5)其他地板:365万m2。中国林产工业协会地板专业委员会  
          
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      • Vol. 28, Issue 2, Pages: 57-59(2014)
        摘要：<正>2014年1月FPI30和FPI地板指数报告2014年1月FPI30指数和FPI地板指数的采集、分析和测算工作已经完成。FPI30综合指数45.7%,与2013年12月环比下降13.8%;FPI地板综合指数45.0%,环比下降12.7%,显示该两个指数所代表的优势企业,在1月的生产呈现收缩态势,如下图所示。2014年1月,构成FPI30指数的5个分类指数有2升3降;构成FPI地板指数的5个分类指数亦是2升3降,见表1。FPI30指数显示,受春节假期的影响,FPI30指数  
          
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        Research & Development

      • CHANG Liang,WANG Zheng,GUO Wen-jing,CHEN Yong-ping,FANG Lu
        Vol. 28, Issue 2, Pages: 10-13(2014) DOI: 10.19455/j.mcgy.2014.02.003
        摘要：A kind of eco-friendly wood/plastic composite plywood was made from poplar veneer pretreated with SiO2solution and low-density polyethylene（LDPE）film.An orthogonal experiment was conducted to evaluate the influence of veneer weight,hot-pressing temperature,hot-pressing time,coupling-agent types and the amount of LDPE on the properties of the plywood.The results showed the amount of LDPE,hot-pressing temperature and types of coupling-agent had significant effects on bonding strength of the plywood.Under optimum manufacturing conditions,the bonding strength of the plywood could meet the requirement for type II plywood according to the national standard GB/T 9846.3-2004.Compared with untreated plywood under same manufacturing conditions,the plywood pretreated with SiO2and coupling agent KH-590showed higher surface hardness and lower formaldehyde emissions.  
        关键词：wood/plastic composite plywood;Poplar veneer;low density polyethylene（LDPE）;SiO2solution;immerse treatment;hot-pressing process   
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        发布时间：2021-02-08
      • LIU Shu-jun,CHU Fu-xiang,YU Wen-ji
        Vol. 28, Issue 2, Pages: 14-17(2014) DOI: 10.19455/j.mcgy.2014.02.004
        摘要：Combustion characteristics of crushed bamboo-mat composite treated with ammonium polyphosphate（APP）were analyzed by thermal gravimetric analysis and cone calorimeter.The results showed that pyrolysis process of crushed bamboo-mat composite could be divided into four stages with the main stage from 200 ℃ to 350 ℃.Compared to untreated materials,the treated composite showed better fire resistance performance,such as lower heat release rate（HRR）,total heat release（THR）,mass loss rate（MLR）and total smoke production（TSP）.  
        关键词：crushed bamboo-mat composite;APP;pyrogenation;combustion behavior kinetics;thermal gravimetric analysis;cone calorimeter   
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      • Vol. 28, Issue 2, Pages: 18-21(2014) DOI: 10.19455/j.mcgy.2014.02.005
        摘要：The authors developed a fuzzy adaptive Proportion-Integration-Differentiation（PID） temperature control system for wood-plastic extruder. According to measured temperature distribution curves,a temperature model for the barrel was established by parameter identification. An application test showed that this system could improve heating speed and temperature control accuracy,reduce overshoot and have a good adaptability to the external disturbance,compared with a conventional PID control system.  
        关键词：wood-plastic composite;extruder;barrel temperature;PID control;fuzzy adaptive control   
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        发布时间：2021-02-08
      • ZHAI Wei,HE Shen-yuan,CUI Ai-ling,CHENG Kang-hua
        Vol. 28, Issue 2, Pages: 22-25(2014) DOI: 10.19455/j.mcgy.2014.02.006
        摘要：Iodopropargyl butyl carbamate（IPBC）has demonstrated a great potential in wood preservation.In order to improve the bacteriostasis of IPBC,IPBC was modified by substituting its R group with 4–chlorophenyl,3,4-dichlorophenyl,4-p-tolyl and 4-methoxybenzene substituent and as a result obtained four kinds of IPBC derivative.The results showed that the bacteriostasis of 3-Iodo-2-propynyl 3,4-dichlorobenzene carbamate was better than that of IPBC and that of 3-Iodo-2-propynylp-chlorophenyl carbamate was comparable to IPBC.The mold resistance of 3-Iodo-2-propynyl 3,4-dichlorobenzene carbamate was better than IPBC and pentachlorophenol sodium, while the mold resistance of 3-Iodo-2-propynylp-chlorophenyl carbamate was slightly worse than pentachlorophenol but better than IPBC.The results of laboratory decay resistance of two derivatives were better than IPBC,but worse than that of tebuconazole.  
        关键词：iodopropargyl butyl carbamate（IPBC）;decay resistance;mold resistance   
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        发布时间：2021-02-08

        Review

      • ZHAI Dong-qun,JIANG Xiao-mei,YIN Ya-fang
        Vol. 28, Issue 2, Pages: 26-30(2014) DOI: 10.19455/j.mcgy.2014.02.008
        摘要：Hongmu and its products are considered to be a unique and scarce wood resource and are always cherished as cultural treasures.However,increasing demand for Hongmu may make the resource unsustainable due to its slow growth.Since protection policies for Hongmu resources will be inevitable,the authors suggest that the Hongmu industry apply fine and high technologies to make full use of the limited Hongmu resources.  
        关键词：Hongmu resource;policies;consumption   
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        发布时间：2021-02-08

        Discussion & Suggestion

      • GUI Cheng-sheng,LIU Xiao-qing,WU Di,WANG Gu-yue,ZHU Jin
        Vol. 28, Issue 2, Pages: 31-35(2014) DOI: 10.19455/j.mcgy.2014.02.009
        摘要：Formaldehyde-based resins are the predominant adhesives applied in the wood products industry.However,wood products bonded with formaldehyde-based adhesives have the drawback of formaldehyde emission.Many strict regulations have been carried out to limit or reduce the emission of formaldehyde.Furthermore,formaldehyde-based adhesives are derived from fossil resources whose reserves are limited.In order to solve these problems,soy-based wood adhesive without formaldehyde is being explored.The authors review in this paper the following areas that are being explored in soy-based adhesives including the development history,bonding mechanism, modification methods,physical properties and processing parameters.The results showed that modified soy-based adhesive can be used for plywood,flooring production and many other fields.  
        关键词：soy-based adhesive;bonding performance;modified;process parameter;plywood;laminated wood flooring   
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        发布时间：2021-02-08
      • CHEN Shuo,HU Ji-mei,SHEN Nai-qiang,TIAN Wei-guo,CHEN Yong-zhong,YAN Cheng-jie,ZHU Chan-ying
        Vol. 28, Issue 2, Pages: 36-38(2014) DOI: 10.19455/j.mcgy.2014.02.011
        摘要：With growing concern about carbon emissions worldwide,"carbon footprint"of the whole life cycle for forest products is of great significance.Taking laminate flooring as an example, the authors studied carbon emissions from laminate flooring.The results showed that 50% of greenhouse gas emissions came from materials themselves and 25% from flooring manufacturing processing.  
        关键词：laminate flooring;carbon footprint;life cycle;greenhouse gas   
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      • WANG Qi,ZHOU Zhi-fang,HE Jin-cun,WANG Hong-di
        Vol. 28, Issue 2, Pages: 39-41(2014) DOI: 10.19455/j.mcgy.2014.02.012
        摘要：以3种结构的体育馆用木地板为对象,检测其在3种温湿度环境条件下,宽度和厚度方向上的尺寸变化。结果表明,在3种环境中,随着时间的延长,试板宽度和厚度均出现不同程度的增加,厚度方向相对线性胀缩率大于宽度方向;龙骨结构地板的厚度方向尺寸稳定性较优,适宜用做体育馆木地板。  
        关键词：体育馆;木地板;环境;温度;湿度;平衡含水率;尺寸稳定性   
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      • ZHANG Zhi-hui,LIU Zhuo-qin,LIANG Jin-ling,GUO Ren-hong,LIANG Ying
        Vol. 28, Issue 2, Pages: 42-46(2014) DOI: 10.19455/j.mcgy.2014.02.013
        摘要：This article compared wood-based panels standards between the mainland and Taiwan in China and analyzed the similarities and differences for plywood,medium density fiberboard, particleboard,wood flooring,laminated veneer lumber and laminated lumber.The authors suggested the mainland wood products standard system should be improved so as to promote technical exchange and trade between the two regions.  
        关键词：Mainland China;Taiwan;wood-based panel;standards   
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      • FANG Di,CHENG Wan-li,WANG Yong-jing,HAN Guang-ping,Pierre Eloy
        Vol. 28, Issue 2, Pages: 47-50(2014) DOI: 10.19455/j.mcgy.2014.02.014
        摘要：介绍行业标准LY/T 2141-2013《定向结构麦秸板》编制的背景、原则与依据,及其目的与意义,并对标准LY/T 2141-2013中的分类、通用要求和检验方法、产品的物理力学性能、测量和试验方法、计算结果判断方法、检验规则等相关规定进行了说明,旨在帮助使用者正确理解和执行该标准。  
        关键词：定向结构麦秸板;行业标准;编制   
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        Piactical Techniques

      • SUN Wei-sheng,WANG Yan-wei,XU Li,YANG Zhi-hui,ZHANG Qiu-juan,CHAO Jiu,WU Zhong-qi
        Vol. 28, Issue 2, Pages: 51-53(2014) DOI: 10.19455/j.mcgy.2014.02.015
        摘要：为优化番龙眼实木地板基材的紫外光固化油漆涂布工艺,研究了由3种油漆构成的6种涂层结构对漆膜柔韧性、附着力、硬度及耐磨性等的影响。结果表明:涂层结构对漆膜的柔韧性、附着力、硬度和耐磨性均有明显影响,底层漆对附着力有较大影响,面层漆明显影响漆膜的硬度和耐磨性。在生产中可采用弹性漆靠近基材、加硬漆处于中间、耐磨漆靠近面层的优化涂层结构。  
        关键词：紫外光固化油漆;涂层结构;漆膜;性能   
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      • PENG Peng-xiang,TU Deng-yun,DU Chao,YANG Sha-sha,LAO Yi-min,DONG Hao,ZHENG Feng-feng
        Vol. 28, Issue 2, Pages: 54-55(2014) DOI: 10.19455/j.mcgy.2014.02.016
        摘要：为拓展杨木高附加值利用途径,对皱缩严重的杨木地板坯料进行汽蒸处理。结果表明:随着处理时间的延长,皱缩杨木地板坯料的含水率增加,皱缩深度减小。经汽蒸5h处理和干燥后,试样的皱缩深度明显减小。  
        关键词：杨木;汽蒸处理;皱缩;深度   
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