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Fundamentals of OSB thickness swell

https://library.fpinnovations.ca/en/permalink/fpipub5562
Author
Dai, Chunping
Zhou, X.
Hirschberg, M.
Date
July 2001
Edition
37584
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Dai, Chunping
Zhou, X.
Hirschberg, M.
Contributor
Canada. Canadian Forest Service.
Date
July 2001
Edition
37584
Material Type
Research report
Physical Description
39 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Swelling
Strandboards
Shrinkage
Oriented strandboard
Orientation
Series Number
Canadian Forest Service No. 29;2284
W-1784
Location
Vancouver, British Columbia
Language
English
Abstract
Reducing thickness swell is the most critical and challenging problem facing oriented strand board (OSB) manufacturers. This is especially important for new end applications for OSB including sub-flooring, web stock and concrete forming. To address the thickness swell problem for OSB, the present report discusses the fundamentals of thickness swell in Part 1 describing in detail the dimensional stability of wood strands under the interactions of heat, moisture pressure and time, develops a statistical model in Part 2 and finally in Part 3, develops a new practical patented radio-frequency method to reduce thickness swell in OSB. It is recommended that the statistical models generated from the present study should be combined with some of the earlier work by Hsu (1994) and Sean (1997) to form a comprehensive computer software for OSB manufacturers.
Oriented strandboard
Swelling and shrinkage
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