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纵向声波测定定向刨花板定向率的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1991年04期
Page:
73-76
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
THE STUDY OF THE SOUND MEASURE METHOD ON ORIENTATION RATIO OF ORIENTED FLAKEBOARD
Article ID:
1000-2006(1991)04-0073-04
Author(s):
Qiu Jinhui
Nanjing Piano Factory
Keywords:
Orientation ratio Sound velocity Flakeboard
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1991.04.015
Document Code:
A
Abstract:
Orientation ratio is an important characteristic parameter of oriented flakeboard. Taking sound velocity ratio (SVR= V11 / V) as orientaton ratio, this paper studies the relationship between the ratio, V / V, and average alignment angle 0; as well as the strength ratio, MOE / MOE, at the same time inquiring into the validity through calculating modulus of elasticity of oriented flakeboard by sound velocity. The result shows that the formula MOE=p ?V2 amended by a coefficient can calculate modulus of elasticity of flakeboard very well, its error is < 5%.

References

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Last Update: 1900-01-01