| 用热压干燥法干燥的速生柳杉材的抗弯强度研究 |
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| 引用本文： | 唐君畏.用热压干燥法干燥的速生柳杉材的抗弯强度研究[J].四川农业大学学报,1997,15(2):233-235. |
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| 作者姓名： | 唐君畏 |
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| 作者单位： | 四川农业大学林学园艺学院 |
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| 摘 要： | 本文叙述了用我们研制的木材电热热压干燥装置干燥柳杉（Ｃｒｙｐｔｏｍｅｒｉａｆｏｒｔ－ｕｎｅｉ）小径材板材，当板厚为２５ｍｍ，最高温度为１７０℃，压力０．２ＭＰａ，时间７０分钟，终含水率１０％的试材同温度为６０℃，时间为１２０小时干燥的窑干材相比，抗弯强度与弹性模量分别减少了５．４％和６．５％，而厚度干缩率和密度分别增加了１．３％和１．８％，但统计上均无显著差异。宽度干缩率减小６７．９％，差异显著
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| 关 键 词： | 热压干燥 柳杉［49GG］ 抗弯强度［31DA.56A］ 干缩率［83AB］ 干燥［83AB］ |
BENDING STRENGTH OF PRESS-DRIED PLANTATION CRYPTOMERIA FORTUNEI |
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| Tang Junwei.BENDING STRENGTH OF PRESS-DRIED PLANTATION CRYPTOMERIA FORTUNEI[J].Journal of Sichuan Agricultural University,1997,15(2):233-235. |
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| Authors: | Tang Junwei |
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| Abstract: | mm-thick platation Cryptomeria fortunei press-dried at 170℃, 0.2 MPa for 70 minvtes were Compared to those of kilndried at 60℃ for 120 hours, and modulus of rupture and modulus of elasticity decreased 5.4 and 6.5 percent, repectively,thickness shrinkage and specific gravity increased 1.3 and 1.8 percent respectively;however the difference was not statistically significant, and width shrinkage decreased 67.9 percent, the difference was statistically significant. |
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| Keywords: | PRESS-DRYING CRYPTOMERIA FORTUNEI FLEXURAL STRENGTH SHRINKAGE DRYING |
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