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105 records – page 1 of 11.

Accuracy of check modeling and its effect on lumber value recovery

https://library.fpinnovations.ca/en/permalink/fpipub1357
Author
Orbay, L.
Date
March 2007
Edition
37841
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Accuracy of Check Modeling and Its Effect on Lumber Value Recovery by Laszlo Orbay
Author
Orbay, L.
Contributor
Forestry Innovation Investment
Date
March 2007
Edition
37841
Material Type
Research report
Physical Description
42 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Seasoning degrade
Seasoning
Recovery
Process control
Prevention
Series Number
Recipient Agreement No.: FII-MDP-07-0016
Contract No.: 2007-5155
W-2441
Location
Vancouver, British Columbia
Language
English
Abstract
Recovery - Process control
Seasoning - Degrade - Prevention
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Achieving maximum performance from computer optimized log bucking

https://library.fpinnovations.ca/en/permalink/fpipub865
Author
Wang, S.J.
Giles, D.R.
Date
January 1988
Edition
37211
Material Type
Research report
Field
Wood Manufacturing & Digitalization
optimized bucking i n terms of t o t a l product value recovery. The eight percent value loss was due
Author
Wang, S.J.
Giles, D.R.
Date
January 1988
Edition
37211
Material Type
Research report
Physical Description
30 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Simulation
Saw mills
Efficiency
Recovery
Logs
Automatic control
Series Number
W-533
Location
Vancouver, British Columbia
Language
English
Abstract
Logging - Bucking
Sawmilling - Computer simulation
Sawmilling - Efficiency
Recovery
Sawmilling - Automation
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Amélioration du rendement en valeur des opérations de récolte de feuillus tolérants

https://library.fpinnovations.ca/en/permalink/fpipub3286
Author
Hamilton, Peter
Date
September 2012
Edition
39949
Material Type
Research report
Field
Fibre Supply
Author
Hamilton, Peter
Date
September 2012
Edition
39949
Material Type
Research report
Physical Description
8 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Veneer
Value added
Sorting
Recovery
Logs
Hardwoods
Hardwood iniative
Iniative feuillis
Advantage
Series Number
Avantage ; Vol. 13, No. 5
Language
French
Abstract
Les forêts de feuillus tolérants fournissent une vaste gamme de produits, notamment des billes dont la valeur varie de 45 à 1700 $/m3. L'utilisaton de modèles de production convenant aux produits de commodité ne maximise pas la valeur qu'on peut tirer de ce type de forêt.
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Benefits of including surface defect information in edger and trimmer optimization

https://library.fpinnovations.ca/en/permalink/fpipub1292
Author
Orbay, L.
Date
March 2006
Edition
37768
Material Type
Research report
Field
Wood Manufacturing & Digitalization
The objective of this project was to quantify the lumber value recovery up-lift that is achievable by adding
Author
Orbay, L.
Date
March 2006
Edition
37768
Material Type
Research report
Physical Description
23 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Value added
Trimming
Surface properties
Recovery
Quality control
Qualitative analysis
Optimization
Series Number
W-2223
Location
Vancouver, British Columbia
Language
English
Abstract
The objective of this project was to quantify the lumber value recovery up-lift that is achievable by adding surface defect detection to board profile scanning in sawmill edger optimization. Optimized profile edging solutions of 194 spruce-pine-fir sample boards were compared to optimized edging solutions that took into account surface defects as well as the geometric shape of the board. The edger optimization improvement was found to be marginal. Data analysis showed a benefit of only $0.13 per m3 of processed logs, an equivalent of $237.11 per shift. The findings of this report are mill specific. The value recovery figures were collected in a mill with given log supply, machinery and market orientation. A more significant up-lift in value recovery would likely be obtained for higher valued products produced from larger logs typically processed in coastal sawmills.
Edging Optimization
Trimming Optimization
Surface quality
Value recovery
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Bondability of beetle-killed lodgepole pine for the manufacture of wood composite products

https://library.fpinnovations.ca/en/permalink/fpipub5605
Author
Feng, Martin W.
He, G.
Date
January 2006
Edition
37778
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Summary To maximize value recovery from post mountain pine beetle - wood (MPB wood) for the manufacture
Author
Feng, Martin W.
He, G.
Contributor
Forestry Innovation Investment
Date
January 2006
Edition
37778
Material Type
Research report
Physical Description
16 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Utilization
Recovery
Pinus contorta
Pinus
Insect killed
Series Number
5156
W-2253
Location
Vancouver, British Columbia
Language
English
Abstract
To maximize value recovery from post mountain pine beetle - wood (MPB wood) for the manufacture of wood composite products, it is desirable to use completely MPB wood as OSB, MDF or particleboard furnish. The objective of this study in the first fiscal year was to determine and quantify the chemical properties, bondability and wettability of grey stage MPB wood in order to minimize or reduce the impact of beetle-killed wood on composite panel manufacturing. Investigation of the chemical and physical properties of grey stage MPB wood, such as wood pH and buffer capacity, wettability and bondability was conducted. Green lodgepole pine and aspen were used to compare the test results. Various wood furnish derived from MPB wood and green lodgepole pine have been prepared for the manufacturing testing of OSB, MDF and particleboard panels in the next fiscal year. The test results indicated that some basic chemical and physical properties of lodgepole pine, particularly in the sapwood area, had undergone changes associated with MPB infestation. Based on the test results so far, the following conclusions are made: 1. The pH values of both the MPB heartwood and sapwood were lower and their acid and base buffer capacities were higher than those of the green lodgepole pine. As a result, the curing rate of pH sensitive adhesives such as UF and MUF may be affected. 2. MPB sapwood showed extremely fast and high water absorption but its thickness swell was lower than those of the MPB heartwood, green pine sapwood and heartwood regardless of water temperatures. 3. Thickness swell of the MPB sapwood almost reached to the maximum in the first two hours of water soaking at 20°C. 4. The water absorption of sapwood was higher but the thickness swell was lower than that of heartwood in both MPB wood and green lodgepole pine. The rates of water absorption and thickness swell of these woods were fast in the first several hours and slowed down thereafter. 5. Both the MPB heartwood and the green pine heartwood behaved very similarly in terms of water absorption rate and percentages. It appeared that the beetle infestation did not significantly affect the water absorption property of the MPB heartwood. 6. Edge thickness swell and center thickness swell of the MPB sapwood behaved very similarly in terms of the rates and percentages, which were quite different from those of the other woods and suggest that the blue stained MPB sapwood had probably undergone profound changes. 7. Higher temperatures led to faster and more water absorption. The water temperature affected the MPB sapwood more than the MPB heartwood. 8. Thickness swell reached to the equilibrium faster at higher temperatures. 9. Water pH had little influence on water absorption but affected thickness swell. The thickness swell of both MPB wood and lodgepole pine decreased under both acidic and alkaline conditions. 10. The bonding strength of MPB and green lodgepole pine with liquid PF, powdered PF and liquid UF were generally comparable to that of aspen at high press temperatures. Both the MPB wood and green pine showed lower bonding strength than aspen at low press temperatures. This may have significant implications on the bonding quality of the core layer of panels. 11. At high temperature (200°C), green pine produced substantially higher MDI bonding strength while MPB wood and aspen gave lower and similar bonding strength. This was also the case at low press temperature (140ºC), particularly in longer press time. The MDI bonding strength of MPB wood was close to that of aspen under all these press time and temperature conditions. However, aspen appeared to be less sensitive to low press temperature in terms of bonding with MDI. Therefore, green lodgepole pine may be more suitable as a core furnish material than the MPB wood in the manufacture of OSB, where MDI resin is widely used as a core layer adhesive. Grey stage MPB wood may be more suitable as an OSB face furnish material. This hypothesis will be carefully tested in the 2nd fiscal year of this project.
Insect killed wood - Utilization
Insect-killed wood - Recovery
Pinus contorta Dougl. var. latifolia - North America
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Bucking optimization : photocells vs 3D scanning

https://library.fpinnovations.ca/en/permalink/fpipub1346
Author
Orbay, L.
Date
March 2007
Edition
37830
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Orbay, L.
Date
March 2007
Edition
37830
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Simulation
Recovery
Optitek
Optimization
Series Number
4525
W-2419
Location
Vancouver, British Columbia
Language
English
Abstract
This project presents the results of a computer simulation of the recovery obtained from six bucking optimization systems equipped with different scanner and conveyor combinations. Forty sample stems were scanned and stem models developed to provide input for Forintek’s sawing simulation program, OPTITEK®. Input files of both sawmill machinery and their products were developed based upon the operation of a typical sawmill in the Interior of B.C. Optimized bucking solutions were generated, and sample stems were sawn accordingly. Lumber value and volume recovery data were obtained and enabled a performance evaluation of the six bucking optimization systems. In this project the affect of both the log conveying system and the type of scanner was considered. Both lineal and transverse conveyor systems were studied and the effects of true shape, partial true shape and XY scanners were modelled. Various combinations of parameters were studied and the annual dollar production for such combinations were computed. Recommendations are made relating to the different systems studied and how the results may be of benefit to mill optimization.
Bucking - Optimization
Optitek
Optics - Computer simulation
Recovery
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Chip production at four size categories of Alberta sawmills : an assessment of production volumes and cost

https://library.fpinnovations.ca/en/permalink/fpipub745
Author
Mayer, D.A.
Date
August 1984
Edition
37058
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mayer, D.A.
Date
August 1984
Edition
37058
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waste utilization
Utilization
Studs
Saw mills
Recovery
Costs
Alberta
Series Number
W-268
Location
Vancouver, British Columbia
Language
English
Abstract
Chips - Recovery - Alberta
Chipping - Cost - Alberta
Waste - Utilization for pulp - Alberta
Sawmilling studies - Alberta
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Chip recovery and productivity of frozen and unfrozen hardwood and softwood at a Saskatchewan pulp mill

https://library.fpinnovations.ca/en/permalink/fpipub3896
Author
Araki, Dennis
Date
March 2003
Edition
40619
Material Type
Research report
Field
Fibre Supply
Author
Araki, Dennis
Date
March 2003
Edition
40619
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Woodrooms
Saskatchewan
Recovery
Quality control
Qualitative analysis
Productivity
Chippers
Advantage
Series Number
Advantage ; Vol. 4, No. 5
Language
English
Abstract
The Forest Engineering Research Institute of Canada (FERIC) evaluated wood chip recovery and productivity at Weyerhaeuser Company Limited's pulp mill in Prince Albert, Saskatchewan. Frozen and unfrozen hardwood and softwood logs were debarked and shipped over a range of butt diameters and lengths. This report summarizes the chip recovery, quality, and productivity, and provides recommendations on how the operation and chip recovery can be improved.
Chips
Chipping
Woodrooms
Debarking
Chip quality
Chip recovery
Chipping productivity
Drum debarkers
Disc chippers
Saskatchewan
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Chip recovery, quality, and productivity at a northern Alberta pulp mill

https://library.fpinnovations.ca/en/permalink/fpipub3889
Author
Araki, Dennis
Date
2002
Edition
40610
Material Type
Research report
Field
Fibre Supply
Author
Araki, Dennis
Date
2002
Edition
40610
Material Type
Research report
Physical Description
10 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Woodrooms
Rings
Ring debarkers
Recovery
Quality control
Qualitative analysis
Productivity
Costs
Alberta
Advantage
Series Number
Advantage ; Vol. 3, No. 51
Language
English
Abstract
The Forest Engineering Research Institute of Canada (FERIC) evaluated wood chip recovery, quality, and productivity when ring-debarking and chipping deciduous stems over a range of butt diameters in both unfrozen and frozen conditions in northern Alberta.
Chips
Chipping
Woodrooms
Debarking
Ring debarkers
Chip quality
Chip recovery
Chipping productivity
Chipping costs
Alberta
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Combined effects of processing and product recovery on mill profit

https://library.fpinnovations.ca/en/permalink/fpipub758
Author
Wang, S.J.
Date
July 1983
Edition
37074
Material Type
Research report
Field
Wood Manufacturing & Digitalization
THE COMBINED EFFECTS OF PROCESSING RATE AND PRODUCT RECOVERY ON MILL PROFIT by STEVE J . WANG
Author
Wang, S.J.
Date
July 1983
Edition
37074
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saw mills
Efficiency
Recovery
Series Number
W-286
Location
Vancouver, British Columbia
Language
English
Abstract
Recovery
Sawmilling - Efficiency - Computer programming
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105 records – page 1 of 11.