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25 records – page 1 of 2.

Minimizing and control of volatile organic chemicals (VOCs) from composite wood products

https://library.fpinnovations.ca/en/permalink/fpipub41788
Author
Barry, A.
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Barry, A.
Date
March 1997
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
VOC Volatile Organic Compounds
Organic matter
Series Number
CFS no.32
Project no. 1134
E-2995
Location
Sainte-Foy, Québec
Language
English
Abstract
VOC's
Control
Minimizing
Volatile Organic Chemicals
Documents
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Strand alignment factors in the production and performance of osb

https://library.fpinnovations.ca/en/permalink/fpipub41789
Author
Grant, D.R.
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Grant, D.R.
Date
March 1997
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strands
Measurement
Image analysis
Analysis
Series Number
Canadian Forest Service No. 11
E-2996
Location
Sainte-Foy, Québec
Language
English
Abstract
Strand Alignment
Image Analysis
Measurement
Documents
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Optimization of pressing parameters : particleboard

https://library.fpinnovations.ca/en/permalink/fpipub41795
Author
Hsu, W.H.E.
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Hsu, W.H.E.
Date
March 1997
Material Type
Research report
Physical Description
9 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Pressing
Particle boards
Parameters
Optimization
Series Number
Canadian Forest Service No. 31
E-3003
Location
Sainte-Foy, Québec
Language
English
Abstract
Pressing Parameters
Optimization
Particleboard
Documents
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Optimization of fiber refining and pressing parameters

https://library.fpinnovations.ca/en/permalink/fpipub41796
Author
Hsu, W.H.E.
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Hsu, W.H.E.
Date
March 1997
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Refining
Pressing
Series Number
Canadian Forest Service No. 33
E-3004
Location
Sainte-Foy, Québec
Language
English
Abstract
Fibreboard
Fibreboard Pressing
Fiber Refining
Documents
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OSB panels for lamination

https://library.fpinnovations.ca/en/permalink/fpipub41797
Author
Calvé, Louis R.
Ganev, S.
Lefebvre, M.
Date
April 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Calvé, Louis R.
Ganev, S.
Lefebvre, M.
Date
April 1997
Material Type
Research report
Physical Description
19 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Panels
Oriented strandboard
Series Number
CFS report 1137
E-3006
Location
Sainte-Foy, Québec
Language
English
Abstract
OSB Panels
Lamination
Documents
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Modelisation et simulation du procede de sciage dans le but d'une commande en temps reel

https://library.fpinnovations.ca/en/permalink/fpipub41806
Author
Léger, Francine
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Léger, Francine
Date
March 1997
Material Type
Research report
Physical Description
29 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Simulation
Sawing
Series Number
Canadian Forest Service No. 43
E-3023
Location
Sainte-Foy, Québec
Language
French
Abstract
Sawing - Computer simulation
Models
Documents
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Technical and economic evaluation of top restraint to reduce degrade losses in Eastern spruce-pine-fir

https://library.fpinnovations.ca/en/permalink/fpipub41807
Author
Garrahan, Peter A.
Date
June 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Garrahan, Peter A.
Date
June 1997
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Pinus
Spruce
Softwoods
Drying
Canada
Series Number
E-3022
Location
Sainte-Foy, Québec
Language
English
Abstract
Drying
Spruce-Pine-Fir
Softwoods - Eastern Canada
Top restraint
Documents
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Minimizing and control of volatile organic chemicals (VOCs) from composite wood products

https://library.fpinnovations.ca/en/permalink/fpipub41820
Author
Barry, A.
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Barry, A.
Date
March 1997
Material Type
Research report
Physical Description
52 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
VOC Volatile Organic Compounds
Organic matter
Series Number
CFS no. 32
E-3065
Location
Sainte-Foy, Québec
Language
English
Abstract
VOC's
Control
Minimizing
Volatile Organic Chemicals
Documents
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Modelisation des differentes techniques de sciage courbe

https://library.fpinnovations.ca/en/permalink/fpipub41821
Author
Hébert, F.
Date
October 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Hébert, F.
Date
October 1997
Material Type
Research report
Physical Description
90 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Sawing
Location
Sainte-Foy, Québec
Language
French
Abstract
Curve sawing
Sawing - Models
Documents
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Kiln drying of balsam fir

https://library.fpinnovations.ca/en/permalink/fpipub41828
Author
Savard, Marc
Date
July 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Savard, Marc
Contributor
Canada. Canadian Forest Service
Date
July 1997
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Drying
Kilns
Balsam
Series Number
CFS Simple Progress Report 1110
E-3079
Location
Sainte-Foy, Québec
Language
English
Abstract
Kiln drying
Balsam Fir
Sapin baumier
Documents
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Evaluation techno-economique des effets de l'application de charges au-dessus des piles de bois pour reduire le declassement du melange epinette-pin-sapin

https://library.fpinnovations.ca/en/permalink/fpipub41831
Author
Garrahan, Peter A.
Date
June 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Garrahan, Peter A.
Date
June 1997
Material Type
Research report
Physical Description
33 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Pinus
Spruce
Spruce Pine Fir
SPF
Seasoning degrade
Seasoning
Drying
Series Number
E-3083
Location
Sainte-Foy, Québec
Language
French
Abstract
Seasoning - Degrade
Spruce-Pine-Fir (SPF) - Drying
Documents
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Conversion factors for the forest products industry in Eastern Canada

https://library.fpinnovations.ca/en/permalink/fpipub41793
Author
Kostiuk, Alan P.
Pfaff, Frank
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kostiuk, Alan P.
Pfaff, Frank
Date
March 1997
Material Type
Research report
Physical Description
98 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Power supply
Energy
Canada
Series Number
Special Publication; SP-523E
Location
Sainte-Foy, Québec
Language
English
ISBN
864885231
ISSN
8242119
Abstract
Conversion factors in comparative and standardized units are proposed for Eastern Canada forest products industry data. Information on wood measurement, wood properties and wood products are the most common "missing links" in the calculation of wood consumption and wood product yield. In this research, Forintek was commissioned to improve the accuracy and usefulness of OMNR'S Forest Industry Mill Information System (FIMIS) database. This publication contains information specific to the resource sizes, species, technologies and units used by the lumber and composite board industries in Ontario, Quebec, New Brunswick, Nova Scotia and Newfoundland. The resulting forest products industry statistics respond to industry, research and government who need to convert performance data into units and ratios.
Forest products industry
Forintek Canada Corp. - Publications
Conversion factors
Calorific power
Documents
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Facteurs de conversion à l'usage de l'industrie des produits forestiers de l'Est du Canada

https://library.fpinnovations.ca/en/permalink/fpipub41794
Author
Kostiuk, Alan P.
Pfaff, Frank
Date
March 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kostiuk, Alan P.
Pfaff, Frank
Date
March 1997
Material Type
Research report
Physical Description
102 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Power supply
Energy
Canada
Series Number
Publication Speciale SP-523F
E-3001
Location
Sainte-Foy, Québec
Language
French
ISBN
864885231
ISSN
8242119
Abstract
Des facteurs de conversion en unités comparables et normalisées sont proposés pour des données d'usines de produits forestiers de l'Est du Canada. Les informations sur le mesurage du bois, les propriétés du bois et les produits du bois permettent de combler les lacunes dans le calcul et l'évaluation statistique de la consommation de bois et du rendement en produits du bois. Un des mandats de cette recherche consistait à améliorer la précision et l'utilité de la base de données Forestry Industry Mill Information system (FIMIS) du MRNO. Cette publication contient les dimensions, les espèces, les technologies et les unités de mesure spécifiques à la ressource exploitée dans les industries de bois de sciage et de panneaux composites de l'Ontario, du Québec, du Nouveau-Brunswick, de la Nouvelle-Ecosse et de Terre-Neuve. Cette contribution sur les statistiques forestières s'adresse aux industriels, aux institutions de recherche et aux organismes gouvernementaux qui désirent convertir des données d'usines en unités de mesure et en proportions. Publication Speciale SP523F
Documents
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Computer models for lumber dry kiln control : progress report

https://library.fpinnovations.ca/en/permalink/fpipub5932
Author
Léger, Francine
Tarasiewicz, S.
Date
March 1997
Edition
41791
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Léger, Francine
Tarasiewicz, S.
Date
March 1997
Edition
41791
Material Type
Research report
Physical Description
89 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood drying
Wood
Drying
Location
Sainte-Foy, Québec
Language
English
Abstract
Wood - Drying - Computer Models
Documents
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Automatic plywood wood failure evaluation based on image analysis/image processing

https://library.fpinnovations.ca/en/permalink/fpipub5529
Author
Andersen, Axel W.
Shi, X.
Salahuddin, U.
Zhong, Y.
Date
March 1997
Edition
37443
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Andersen, Axel W.
Shi, X.
Salahuddin, U.
Zhong, Y.
Contributor
Canada. Canadian Forest Service.
Date
March 1997
Edition
37443
Material Type
Research report
Physical Description
32 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Testing
Plywood
Instrumentation
Gluing
Series Number
Canadian Forest Service No. 13;1053
W-1391
Location
Vancouver, British Columbia
Language
English
Abstract
Wood failure evaluation is the key criterion for predicting the long-term durability of plywood. At present, the conventional visual method for plywood wood failure evaluation is slow and subjective. Even experienced evaluators can show significant differences in their evaluations on the same plywood specimen and an individual evaluator can make different wood failure estimates on the same specimen at different times. Differences among evaluators can be as high as 50% for some samples. Evaluations can be influenced by room lighting, the wood species, sample treatment, and readings from prior samples. An automatic wood failure evaluation system using image analysis techniques could potentially be programmed to consider all the variables and respond with consistent wood failure values regardless of the experience level of the machine operator. This report describes the results of a one-year project in which a system for automatic plywood wood failure determination was investigated. A color optical imaging system was assembled and the preliminary work of compiling suitable algorithms was completed with promising results. The imaging system was 100% effective in reproducing individual sample values. Samples were sorted according to plywood type and test method to develop appropriate program algorithms for each category. The wood failure program was then further developed to automatically detect wood species and test method, thus avoiding the need for specimen separation prior to evaluation. Based on nearly 1200 samples in four categories, the differences in average values of wood failure between human evaluation and machine vision were found to be less than plus or minus 5%. In addition, a minimum of 85% of individual machine readings fell in the plus or minus 15% range of deviation expected of human wood failure readers. The imaging system was more accurate for light-colored specimens (i.e., Canadian Softwood Plywood) than darker-colored specimens (i.e., Douglas fir ) and for specimens where resin had been applied by spray. In order to make the imaging system more reliable and robust, the algorithm parameters now need to be fine-tuned based on a larger sample database.
Plywood - Gluing - Tests
Plywood - Tests - Control instruments
Instruments, Testing
Digital imaging
Defects - Detection
Documents
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The effect of different amounts of roll-tensioning on the cutting accuracy of bandsaws

https://library.fpinnovations.ca/en/permalink/fpipub5536
Author
Taylor, J.
White, J.
Bouchard, A.
Date
September 1997
Edition
37463
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Taylor, J.
White, J.
Bouchard, A.
Date
September 1997
Edition
37463
Material Type
Research report
Physical Description
11 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Band saws
Saw bands
Saws
Bands
Blades
Sawing
Series Number
W-1468
Location
Vancouver, British Columbia
Language
English
Abstract
Across North America the amount of tensioning used in bandsaws varies drastically. Sawblades tensioned to fit circle gauges from 28 feet to 80 feet in diameter are in regular use and performing very well. This raises the questions as to what is the right amount of tension and what effect does it have on cutting accuracy. In this study, the cutting accuracy of five sawblades, with varying levels of tension, have been measured and compared. The results show that little change occurs in cutting accuracy once enough tension has been put into the blade for it to fit an 80-ft circle gauge.
Saws - Band
Saws - Maintenance
Sawing - Blades
Documents
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Machining and related mechanical properties of 15 B.C. wood species

https://library.fpinnovations.ca/en/permalink/fpipub5537
Author
Williams, D.
Morris, R.
Date
October 1997
Edition
37464
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Williams, D.
Morris, R.
Contributor
Forest Renewal BC
Date
October 1997
Edition
37464
Material Type
Research report
Physical Description
41 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Mechanical properties
Series Number
W-1469
Location
Vancouver, British Columbia
Language
English
Abstract
This study compares the machining properties of 15 individual species within B.C.'s SPF and hem-fir groups demonstrating the benefits of sorting by individual species. In addition, the machining properties of B.C.'s under-utilized species (e.g., trembling aspen, black cottonwood) are compared to those of well-established softwood species (e.g., Douglas-fir, western hemlock). Finally, the study determined the average force necessary to withdraw two types of fasteners (nail and screw) from each of the wood species.
Mechanical properties - Machining
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A survey to determine potential projects to improve lumber recovery

https://library.fpinnovations.ca/en/permalink/fpipub37441
Author
Orbay, L.
Date
February 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Orbay, L.
Date
February 1997
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Recovery
Series Number
W-1384
Location
Vancouver, British Columbia
Language
English
Abstract
To develop new projects in the field of sawmill optimization, 21 sawmills were surveyed in British Columbia and Alberta. The project ideas were intended to help the sawmill industry to improve lumber recovery. This report describes the survey methods used, the type of sawmills included in the study, the specific research projects proposed, and the method by which priorities were assigned to projects.
Recovery
Documents
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Optimization of steam injection pressing for veneer panel products

https://library.fpinnovations.ca/en/permalink/fpipub37445
Author
Andersen, Axel W.
Troughton, G.E.
Date
April 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Andersen, Axel W.
Troughton, G.E.
Date
April 1997
Material Type
Research report
Physical Description
15 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Veneer manufacturing
Veneer
Pressing
Plywood manufacture
Plywood
Panels
Laminate product
Series Number
Project No. 1070
W-1404
Location
Vancouver, British Columbia
Language
English
Abstract
Experiments were conducted to evaluate steam-injection pressing of plywood and LVL using saturated and superheated steam conditions. Three steam-injection times of one, two and three minutes were used to prepare 7-ply plywood and steam-injection times of three, five, seven, and nine minutes were used to prepare LVL. The results showed optimum pressing times were achieved with the steam-injection times of one and two minutes for the 7-ply plywood and seven minutes was found to be an optimum steam-injection time for LVL. All the panels prepared under a variety of steam conditions exhibited excellent bond quality and the average % wood failure was greater than 80% in all cases. For the preparation of the 7-ply plywood and LVL, using the optimum steam-injection times for both superheated and saturated steam conditions, the pressing time was reduced by over 30% compared to conventional platen heating. An economic analysis of return on investment for thick plywood products and LVL shows the pay-back period for retrofitting an existing plywood or LVL press for steam injection is less than three months.
Lumber, Laminated veneer - Pressing
Lumber, Laminated veneer - Manufacture
Veneers - Pressing
Veneers - Manufacture
Plywood - Panels - Pressing
Plywood - Manufacture
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Drying sub-alpine fir with wet pockets

https://library.fpinnovations.ca/en/permalink/fpipub37455
Author
Hartley, I.D.
Date
July 1997
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Hartley, I.D.
Contributor
Canada. Canadian Forest Service.
Date
July 1997
Material Type
Research report
Physical Description
104 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Seasoning
Balsam
Fir
Series Number
Canadian Forest Service No. 36
W-1421
Location
Vancouver, British Columbia
Language
English
Abstract
In Western Canada, major problems in drying sub-alpine fir (Abies lasiocarpa (Hook)), either alone or as part of the spruce-pine-fir species mix, have been largely attributed to the occurrence of wet-pocket wood in this species. The species is notorious for containing wet pockets that significantly extend the drying time and make it difficult to create a uniformly dried end product. Some of the problems are usually caused by the initial high and variable moisture contents, which causes the lumber charge to have wide variations in final moisture contents after drying. Since there has been an increase in harvesting of sub-alpine fir in recent years, the industry is faced with drying larger amounts of this species. Therefore, there is a need to develop suitable schedules for sub-alpine fir. The objective of this study was to develop or improve current drying schedules for sub-alpine fir containing wet-pockets based on wood properties and drying behaviour by manipulating drying conditions. Twenty-three kiln drying runs, using Forintek's experimental 3-foot kiln, were performed using different combinations of air-drying, pre-steaming and conditioning in the drying schedules. Air-drying phase of the schedule was 0-, 4- or 8-weeks; pre-steaming phase was 0-, 4- or 8-hours; and, conditioning phase was 0-, 2- or 4-hours. Basic density, initial and final moisture content distributions, were determined for each lumber load as well as an estimation of the amount of wet-pockets were recorded. Moisture diffusion was examined for wet-pocket wood with different pre-steaming periods. Use of hand-held moisture meters to determine the final moisture content of the wood was examined. In general, air-drying can significantly reduce lumber kiln drying time. The air-drying period for this study was during the summer months. The effect of 4-weeks air-drying and 8-weeks air-drying are similar. Air-drying can improve final moisture content distribution within each run. There is a reduction of over-dried and under-dried percentage with air-dried lumber when followed by kiln drying. Pre-steaming slightly increased the drying rate when average MC of the load was below about 40%. Pre-steaming has no significant effect on final moisture content distribution with in each run. The diffusion of moisture in the wet-pocket wood appeared to increase when the wood was pre-steamed. Based on the results in this study, the best strategy for drying sub-alpine fir is using air-drying in combination with the mill's conventional schedule. This report provides details of the different combinations which mill personnel can use to develop their own drying strategy to improve the quality and uniformity of sub-alpine fir lumber.
Abies lasiocarpa - Seasoning
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25 records – page 1 of 2.