Research on density gradient of parallel strand lumber

WANG Shijian,NA Bin,GAO Jing,LU Xiaoning

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (04) : 115-118.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (04) : 115-118. DOI: 10.3969/j.jssn.1000-2006.2012.04.024

Research on density gradient of parallel strand lumber

  • WANG Shijian,NA Bin,GAO Jing,LU Xiaoning*
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Abstract

Statistical analysis on the density distribution of each layer was made based on the PSL(parallel strand lumber)pressed without glue. The result indicated that the density of each veneer strip after pressed met the normal distribution. The predicted value calculated by the model would be compared with statistical distribution range. When the pressure is lower than 5 MPa, the calculated value meets well with statistical distribution range. But when the pressure is 5 MPa, there is a great difference between them. And finally the density gradient model was confirmed. The result of face density scanning indicated that the density gradient model of PSL is accurate.

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WANG Shijian,NA Bin,GAO Jing,LU Xiaoning. Research on density gradient of parallel strand lumber[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2012, 36(04): 115-118 https://doi.org/10.3969/j.jssn.1000-2006.2012.04.024

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