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Advancement in osb manufacturing technology

https://library.fpinnovations.ca/en/permalink/fpipub5677
Author
Hsu, W.H.E.
Kirincic, S.
Date
January 1996
Edition
38830
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Hsu, W.H.E.
Kirincic, S.
Date
January 1996
Edition
38830
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Thickness
Strands
Resin
Oriented strandboard
Location
Ottawa, Ontario
Language
English
Abstract
Oriented strandboard (OSB) manufacturing technology has been advancing steadily during the past few years. Today, the industry can produce higher quality OSB at lower costs than ever before in the product's history. Research results have shown that drying costs can be reduced and strand quality can be improved through proper wood yard management, and that the production efficiency can be improved through various ways of optimizing the pressing and processing operations. OSB quality has been improved and board density has been reduced by using long and thin strands in panel face layers and relatively short and thick strands in the panel core. The press times have been reduced by using higher press temperatures and higher mat face-layer moisture contents. The degree of strand alignment has been improved by controlling the falling distance from the alignment heads to the top of mat being formed. Strands alignment has been further enhanced by arranging the alignment disc gaps in such a way so that narrower strands can be aligned through narrower gaps and directed towards core while wider strands can be aligned through wider gaps and directed towards the panel surfaces. Based on these technical advancements, OSB can be produced faster and at a lower density without sacrificing quality. Consequently, the OSB industry is in the position to improve panel quality without resorting to costly options such as increasing resin content and press time.
OSB
Advancement
Strand Thickness
Strand Width
Strand Length
Resin Content
Press Temperature
Moisture
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Alternatives to slack wax

https://library.fpinnovations.ca/en/permalink/fpipub2802
Author
Wan, Hui
Date
March 2012
Edition
39428
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wan, Hui
Date
March 2012
Edition
39428
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waxes
Strands
OSB
Oriented strandboard
Orientation
Series Number
General Revenue Report Project No. 201004857
E-4780
Location
Québec, Québec
Language
English
Abstract
In this project, a comprehensive experiment studied the impact of wax type, wax content, wax heating temperature and wax molecular weight on OSB panel performance. It shows that to allow tall oil, hydrogenated soybean wax, linseed oil, and low density polyethylene (LDPE) to be used for OSB, further work is needed. We need to add wax in the OSB process; otherwise panel dimensional stability will be ruined. There is an optimal wax content of around 1% in OSB production. The wax content in OSB panel did not need to be higher than 1%. With the waxes tested, wax heating temperature should be higher than 90°C. At a fixed wax heating temperature, optimal wax molecular weight is 520 Daltons for OSB application. Applying high molecular weight wax (600 Daltons) on panel surface may help to improve panel bending strength. The experiment shows that partial substitution of slack wax with LDPE at the OSB panel surface layer may be feasible. Experimental results also show that using contact angle and surface tension tests may help us to screen waxes for OSB panel application. Based on the experimental data, one should handle different waxes in different ways. By engineering wax application parameters one can develop a cost effective way to produce composite panels to meet dimensional stability requirement. Further testing on the feasibility of using contact angle and surface tension to differentiate wax should be conducted. Emulsifying low density polyethylene should be further investigated. Further research is also needed to verify how wax operational parameters affect panel strength.
WAX
Oriented Strand Board (OSB)
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Analysis of forming equipment used in the production of oriented strand board

https://library.fpinnovations.ca/en/permalink/fpipub4836
Author
Grant, D.R.
Date
March 1995
Edition
41651
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Grant, D.R.
Date
March 1995
Edition
41651
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strands
Oriented strandboard
Orientation
Analysis
Series Number
Canadian Forest Service No. 12
E-2172
Location
Sainte-Foy, Québec
Language
English
Abstract
Oriented strand board
Forming Equipment
Analysis
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Assessment of new glue application technology for OSB

https://library.fpinnovations.ca/en/permalink/fpipub1051
Author
Groves, C. Kevin
Troughton, G.E.
Date
June 1997
Edition
37444
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Groves, C. Kevin
Troughton, G.E.
Date
June 1997
Edition
37444
Material Type
Research report
Physical Description
16 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strandboards
Spraying
Penetration
Oriented strandboard
Orientation
Gluing
Glue
Series Number
Project No. 1074
W-1401
Location
Vancouver, British Columbia
Language
English
Abstract
A pilot plant apparatus was built to electrostatically spray phenolic resin on strands. To evaluate the resin distribution on these strands, an image analysis method was developed. The experimental conditions in this study made it difficult to compare electrostatic treatments to control (non- electrostatic) treatments. Although not statistically significant, there were notable differences between these treatments which indicate that electrostatic resin application may improve panel properties and is therefore worth further investigation. First of all, the electrostatic treatment produced panels with a 10% higher internal bond than the control. Secondly, the resin distribution results show that the electrostatic spray, on average, covered a 30% greater area of the strands than the control even though both treatments applied resin at the 2% resin solids level. Further experiments using alternative test procedures are planned to compare electrostatic treatments to control treatments that simulate industrial conditions.
Glue - Penetration
Oriented strandboard - Gluing - Tests
Gluing - Processes
Spraying
Documents
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Automated log pocket monitoring system for OSB mills

https://library.fpinnovations.ca/en/permalink/fpipub3063
Author
Groves, C. Kevin
Date
April 2013
Edition
39712
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Groves, C. Kevin
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
April 2013
Edition
39712
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Test methods
Strandboards
Oriented strandboard
Orientation
Series Number
W-3008
Location
Vancouver, British Columbia
Language
English
Abstract
A prototype scanning system successfully demonstrated the capability of real-time, log pocket monitoring that can be used to alert operators of improper pocket filling practice. Several previous FPInnovations studies have shown that the log pocket filling is often poorly controlled resulting in poor log alignment and/or incomplete filling that adversely affects both flake quality and strander productivity. Until now there have been no systems available to automatically measure the alignment of logs being fed into the strander or measurement of the actual filling of the strander pockets. An automated monitoring system is needed to signal operators when the log pocket is improperly loaded. This feedback can allow operators to maintain proper log filling procedure to maximize flaking quality. In March 2013 a machine vision scanning system comprised of a camera, 2 line lasers and computer with image analysis software, was tested for two days at the Peace Valley OSB mill (PVOSB) in Fort Saint John, BC. The scanner’s camera and lasers were mounted 13 feet above the center of the log pocket base. Images of pocket filling were acquired and analyzed for pass/fail conditions. Two image groups were selected for analysis, one of full pocket, aligned logs (pass) and the other containing misaligned logs and/or insufficient pocket fill (fail). For all pocket scans, scanner measurements were compared to manual visual classification. Approximately 50 different pockets were scanned with results and images saved for analysis. For fill height and vertical log alignment measurement, the scanner correctly identified >95% of all the pockets examined. However, log alignment measurement in the horizontal x-y plane did not function as intended due to poor image contrast that could not be resolved during the mill trial. This technique has been shown to work well in previous pilot plant tests (Groves, 2012) which confirms that the underlying measurement fundamentals are sound. It is recommended that only minor lighting adjustments are required for the scanning system to work well in a mill setting. Implementing this technology in OSB mills should help to reduce the occurrence of poor pocket filling that can adversely affect strand quality. It should be noted that even small improvements to strand quality and productivity can yield significant cost benefits. It is estimated that reducing fines by a modest 1% and improving productivity by 1% can return in excess of $1 million/year based on an average size Canadian OSB mill.
Oriented strandboard - Manufacture
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Balsam poplar as a furnish material for the manufacture of oriented strandboard

https://library.fpinnovations.ca/en/permalink/fpipub2187
Contributor
British Columbia Ministry of Forests
Forintek Canada Corp.
Date
July 1993
Edition
38731
Material Type
Research report
Field
Wood Manufacturing & Digitalization
BALSAM POPLAR AS A FURNISH MATERIAL FOR THE MANUFACTURE OF ORIENTED STRANDBOARD Prepared
Contributor
British Columbia Ministry of Forests
Forintek Canada Corp.
Date
July 1993
Edition
38731
Material Type
Research report
Physical Description
82 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strandboards
Populus
Oriented strandboard
Orientation
Balsam
Series Number
3843M417
E-2300
Location
Ottawa, Ontario
Language
English
Abstract
Oriented strandboard
Balsam Poplar
Furnish Material
Documents
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Balsam poplar/cottonwood as a furnish material for the manufacture of oriented strandboard

https://library.fpinnovations.ca/en/permalink/fpipub2138
Author
Aston, R.
Date
July 1993
Edition
38676
Material Type
Research report
Field
Wood Manufacturing & Digitalization
FOR THE MANUFACTURE OF ORIENTED STRANDBOARD by Roger Aston July, 1993 Project No: 03-38-43-M-417 Roger Aston
Author
Aston, R.
Date
July 1993
Edition
38676
Material Type
Research report
Physical Description
82 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waferboards
Strandboards
Research
Populus
OSB
Oriented strandboard
Orientation
Bibliographies
Balsam
Series Number
3843M417
E-1923
Location
Ottawa, Ontario
Language
English
Abstract
There are six species of poplar native to Canada's forests. One of the most abundant and widely used of the species is the aspen poplar (populus Tremuloides). Aspen has become the most desirable species for the production of oriented strandboard (OSB). Certain sections of Alberta and British Columbia have considerable stands of aspen. The aspen stands also contain varying amounts of balsam poplar (populus balsamifera) and black cottonwood (populus trichocarpa) and various hybrids of the three species. Forintek Canada Corp's Technical Advisory Committee (TAC) was asked by the B.C.Ministry of Forests to establish whether cottonwood could be a suitable furnish for the production of OSB, since it represented a sizeable potential resource in British Columbia. The poplar species are loosely identified by several names and to confirm the actual species we were referred to Mr.Bob Brash, District Manager, Dawson Creek Forest District. Mr.Brash confirmed that the species in question was in fact balsam poplar (populus balsamifera). Balsam poplar is also known as black poplar and balm poplar. An extensive literature search was conducted on the use of balsam poplar/cottonwood in the production of OSB. The literature review and a summary are reported here.
Balsam Poplar - Research - Bibliography
Cottonwood
Oriented strandboard - Manufacturing
OSB - Research
Waferboard
Documents
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Codes & standards of composite wood panels in the world trade

https://library.fpinnovations.ca/en/permalink/fpipub4962
Author
Hsu, J.
Date
December 1996
Edition
41792
Material Type
Research report
Field
Wood Manufacturing & Digitalization
the surface with soapy water. 4.0 ORIENTED STRANDBOARDS AND WAFERBOARDS Oriented strandboard (OSB
Author
Hsu, J.
Date
December 1996
Edition
41792
Material Type
Research report
Physical Description
15 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waferboards
Standards
Particle boards
Oriented strandboard
MDF
Location
Sainte-Foy, Québec
Language
English
Abstract
This report compares international standards for particleboard, waferboard, OSB, MDF, hardboard as well as cement bonded wood composite panels. Property requirements are discussed and comparisons are made between countries. Formaldehyde emission regulations were surveyed in eighteen countries.
Particleboard - Waferboard - OSB - MDF - Hardboard - Cement Bonded
Codes & Standards
World Trade
Documents
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Commercialization of SSL-PF resin

https://library.fpinnovations.ca/en/permalink/fpipub38380
Author
Calvé, Louis R.
Date
December 1989
Material Type
Research report
Field
Wood Manufacturing & Digitalization
adhesives for waferboard and oriented strandboard (OSB). In view of these promising results, Forintek
Author
Calvé, Louis R.
Date
December 1989
Material Type
Research report
Physical Description
32 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waferboards
Resin
Phenols
Oriented strandboard
Lignin
Series Number
3843M404
E-1159
Location
Ottawa, Ontario
Language
English
Abstract
OSB/Waferboard
Resin
Lignin-phenol-formaldehyde
Documents
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Comparative swelling tests on waferboard and oriented strandboard

https://library.fpinnovations.ca/en/permalink/fpipub38214
Author
Alexopoulos, J.
Pfaff, Frank
Date
March 1988
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Alexopoulos, J.
Pfaff, Frank
Date
March 1988
Material Type
Research report
Physical Description
78 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Waferboards
Swelling
Strands
Shrinkage
Panels
Oriented strandboard
Orientation
Series Number
CFS project no.3
E-744
Location
Ottawa, Ontario
Language
English
Abstract
Waferboard - Swelling
Oriented Strand Board - Swelling
Wood Based Panels - Swelling
Swelling and shrinkage
Documents
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115 records – page 1 of 12.