不同树龄米老排木材机械加工性能研究
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摘要
以广西凭祥立地条件一致树龄为7、14、21、28 a的米老排为研究对象,采用加权积分对其解析木单项加工性能进行评价,比较不同树龄、树高对木材综合加工性能的影响。结果表明:随着树龄的增长,米老排木材的机械加工性能有所改善,刨切、铣削、开榫性能1级比例逐渐改善,砂光性能1级比例呈现先上升后回落的趋势,钻孔性能基本无差异基本无差异;同一株木材,上端的刨切性能优于下端,砂光性能、铣削性能差于下端;根据机械加工性能综合评分,米老排木材生长至21～28a时各项机械加工性能最优。
In this paper, the machining properties of Mytilaria laosensis with same stand condition and different tree age of 7, 14, 21 and 28 years in Pingxiang, Guangxi, were tested with weighted integral. The effects of tree age and height on wood machining properties were compared.The results showed that with the increase of tree age, the mechanical processing performance of M. laosensis wood improved, the proportion of planning,shaping and mortising were gradually improved as well. The proportion of sanding level 1 rose first and then fell back. There was no difference in boring performance. At the same age of wood, planning performance at the upper end was better than that at the lower end. Sanding and shaping performance were just the opposite. According to the comprehensive score of mechanical processing performance, the processing performance of M. laosensis was optimal when it grew to 21-28 years.
In this paper, the machining properties of Mytilaria laosensis with same stand condition and different tree age of 7, 14, 21 and 28 years in Pingxiang, Guangxi, were tested with weighted integral. The effects of tree age and height on wood machining properties were compared.The results showed that with the increase of tree age, the mechanical processing performance of M. laosensis wood improved, the proportion of planning,shaping and mortising were gradually improved as well. The proportion of sanding level 1 rose first and then fell back. There was no difference in boring performance. At the same age of wood, planning performance at the upper end was better than that at the lower end. Sanding and shaping performance were just the opposite. According to the comprehensive score of mechanical processing performance, the processing performance of M. laosensis was optimal when it grew to 21-28 years.
引文
[1]成俊卿.中国木材志[M].北京:中国林业出版社,1992.
[2]刘福妹,韦菊玲,庞圣江.不同氮素水平对米老排苗期生长节律的影响[J].西部林业科学,2018,47(6):90-94.
[3]王雪峰,陆元昌,李婷婷,等.泛储木场理念下的米老排用材林营销[J].西南林业大学学报,2013,33(6):46-50.
[4]袁洁.8个米老排天然群体的遗传多样性研究[D].北京:中国林业科学研究院,2014.
[5]李夷荔,林文莲.杉木米老排混交林水源涵养功能的研究[J].亚热带水土保持,2001,13(4):43-46.
[6]林德喜,韩金发,肖正秋,等.米老排对土壤理化性质的改良[J].森林与环境学报,2000,20(1):62-65.
[7]徐良.南方优良速生树种:米老排[J].热带林业科技,1984(2):53-60.
[8]Hernandez R E,Fortin Y,Bustos C,et al.Wood machining properties of White Spruce from plantation forests[J].Forest products society,2001(:6):51-88.
[9]侯新毅,姜笑梅,高建民,等.木材的机械加工性能研究现状与进展[J].木材工业,2003,17(6):3-5.
[10]苏初旺,袁全平,熊经波,等.米老排人工林木材机械加工性能研究[J].安徽农业科学,2011,39(31):19206-19208.
[11]钟楷.不同树龄米老排木材干燥工艺及材性研究[D].广州:华南农业大学,2018.
[2]刘福妹,韦菊玲,庞圣江.不同氮素水平对米老排苗期生长节律的影响[J].西部林业科学,2018,47(6):90-94.
[3]王雪峰,陆元昌,李婷婷,等.泛储木场理念下的米老排用材林营销[J].西南林业大学学报,2013,33(6):46-50.
[4]袁洁.8个米老排天然群体的遗传多样性研究[D].北京:中国林业科学研究院,2014.
[5]李夷荔,林文莲.杉木米老排混交林水源涵养功能的研究[J].亚热带水土保持,2001,13(4):43-46.
[6]林德喜,韩金发,肖正秋,等.米老排对土壤理化性质的改良[J].森林与环境学报,2000,20(1):62-65.
[7]徐良.南方优良速生树种:米老排[J].热带林业科技,1984(2):53-60.
[8]Hernandez R E,Fortin Y,Bustos C,et al.Wood machining properties of White Spruce from plantation forests[J].Forest products society,2001(:6):51-88.
[9]侯新毅,姜笑梅,高建民,等.木材的机械加工性能研究现状与进展[J].木材工业,2003,17(6):3-5.
[10]苏初旺,袁全平,熊经波,等.米老排人工林木材机械加工性能研究[J].安徽农业科学,2011,39(31):19206-19208.
[11]钟楷.不同树龄米老排木材干燥工艺及材性研究[D].广州:华南农业大学,2018.