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North American industrial markets for wood products

https://library.fpinnovations.ca/en/permalink/fpipub39393
Author
Lavoie, P.
Date
2014
Material Type
Research report
Field
Sustainable Construction
Author
Lavoie, P.
Date
2014
Material Type
Research report
Physical Description
48 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Market Analysis
Subject
United States (USA)
Wood
Canada
Markets
Series Number
Canadian Forest Service No. FRII 3.24
201004703
Location
Québec, Québec
Language
English
Abstract
Industrial markets were investigated due to their relatively high importance for the wood products sectors. In 2009, it was estimated that about a third (33%) of all lumber use went to markets other than construction. The information collected in this project allowed estimating consumption volumes for the five (5) sectors studied: bedframe, engineered flooring substrates, formwork, pallets and crates, and household furniture.
In addition to gaining a better understanding of volumes and products used, the project focused on trying to identify unmet user needs or product issues influencing satisfaction with wood products. This kind of information could result in opportunities to substitute products currently used or develop new markets for wood products currently used. Clear cut opportunities specific to each sectors were difficult to identify. It is apparent that wood product users are yearning for straighter products and products displaying fewer defects like wane, knots, etc. This could point towards potential markets for finger jointed and engineered products. The demands for more products that are more visually appealing is somewhat surprising since these are not typically associated with industrial applications. The information comprised within this report will serve as the basis to explore future business opportunities for wood products in specific business cases.
Wood Products
Markets - North America
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Short-term evaluation of the Kobelco BladeRunner ED150 for road rehabilitation

https://library.fpinnovations.ca/en/permalink/fpipub39815
Author
Partington, Mark
Date
May 2014
Material Type
Research report
Field
Fibre Supply
Author
Partington, Mark
Date
May 2014
Material Type
Research report
Physical Description
11 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Transportation & Infrastructure
Subject
Biomass
Moisture content
Drying
Storing
Logs
Advantage
Series Number
Advantage ; Vol. 15, No. 1
Language
English
ISSN
14933381
Abstract
FPInnovations performed short-term productivity studies on a road rehabilitation operation that utilized a Kobelco ED150 BladeRunner. The BladeRunner is a multi-purpose machine that can function as an excavator and a bulldozer, due to its front blade attachment. Productivity studies were also performed on an excavator (John Deere 200C) and bulldozer (Caterpillar D6M) team that performed the same work as the BladeRunner.
ROADS
MACHINERY
HARVESTERS
Abstract
FPInnovations a effectué des études de productivité à court terme dans le cadre d’une opération de remise en état de routes effectuée à l’aide d’un BladeRunner, modèle Kobelco ED150, une machine multifonctions qui peut être utilisée comme excavatrice ou bulldozer en raison de sa fixation frontale pour lames. Des études de productivité ont aussi été réalisées sur une combinaison excavatrice (John Deere 200C) et bulldozer (Caterpillar D6M) qui effectuent les même tâches que le BladeRunner.
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Glulam and CLT innovative manufacturing process and product development : industrial assessment of short joint profile for CLT and glulam products

https://library.fpinnovations.ca/en/permalink/fpipub39820
Author
Grandmont, Jean-Francois
Date
April 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
PDF
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Author
Grandmont, Jean-Francois
Contributor
Canadian Forest Service
Date
April 2014
Material Type
Research report
Physical Description
11 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Joints
Glulam
Cross-laminated timber (CLT)
Fastenings
Series Number
Transformative Technologies Program
Project no.301007960
E-4873
Location
Québec, Québec
Language
English
Abstract
The main objective of this study is to evaluate the potential of a short horizontal joint profile for glulam and CLT producers through an industrial assessment.
PDF
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New concepts in wood I-joist manufacturing and utilization : fire resistant wood I-joist

https://library.fpinnovations.ca/en/permalink/fpipub39821
Author
Osborne, Lindsay
Date
May 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
PDF
Ajoutez cet article à votre liste de sélections pour demander le PDF - Add this item to your selection list to request the PDF
Author
Osborne, Lindsay
Contributor
Canadian Forest Service
Date
May 2014
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Joists
Fire
Resistance
Series Number
Transformative Technologies
Project no.301007961
E-4876
Location
Québec, Québec
Language
English
Abstract
The objective of the study is to identify current and available solutions for improving the fire resistance of wood I-joists. After an analysis and comparison of these technologies, the most promising solutions will be presented which will be suggested to wood I-joist manufacturers for potential further investigation.
Wood I-joists
Fire Resistant - Joints
PDF
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Innovative applications of RF pre-heating and heating for engineered wood product manufacturing

https://library.fpinnovations.ca/en/permalink/fpipub39822
Author
Wang, Brad J.
Dai, Chunping
Date
April 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Brad J.
Dai, Chunping
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
April 2014
Material Type
Research report
Physical Description
34 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Heating
Laminate product
Lumber
Series Number
Transformative Technologies
W-3095
Language
English
Abstract
Several RF pressing trials were successfully conducted in the pilot plant at the Vancouver lab of FPInnovations, which aimed at thick LVL manufacturing, use of lignin-based PF resin as a binder and new plywood pressing method. A number of 3.5-in thick LVL billets were first RF-pressed for heavy-duty packaging applications with a pressing time of being shortened to about 25 min but with satisfactory bending MOE and MOR properties. Lignin PF resin (with 20wt% phenol replacement ratio) was prepared and used to make 13-ply spruce LVL. Compared to the control, there was no significant difference in both panel flatwise and edgewise bending MOE and MOR, as well as panel delamination resistance, when the lignin-based PF resin was applied. Further plywood RF heating trials with aluminum plate separation of panels demonstrated that the inclusion of the plates can help increase the thickness uniformity of plywood panels pressed with RF heating. Economic analyses were conducted to determine the benefits of RF pressing for manufacturing LVL and plywood, and RF preheating of plywood. For RF pressing of LVL preliminary calculations demonstrated that RF pressing would generate aoubt $3.0 million CAD operating profit per year. It would also have 3.3% higher internal rate of return (IRR) and 1.25 years shorter payback period. For RF pressing of plywood, preliminary calculations indicated about $1.0 million CAD increase in operating profit annually for the RF pressing option, yielding a payback period of 3.95 years for purchasing and installing the new RF equipment. For RF pre-heating of plywood, the analysis showed that an increase of $4.7 million CAD in operating profit can be achieved annually and payback period is only 0.4 year. However, some further pilot plant work is required to establish the maximum closed assembly time of pre-heated plywood panels for industrial applications. PF adhesive formulations may also need to be changed in order to prevent glue dry-out after preheating.
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Study to examine the effects of log moisture sorting on OSB manufacturing

https://library.fpinnovations.ca/en/permalink/fpipub39823
Author
Groves, C. Kevin
Date
May 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Groves, C. Kevin
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
May 2014
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Logs
Moisture content
OSB
Sorting
Series Number
W-3096
Language
English
Abstract
In the Canadian OSB industry raw log moistures are generally thought to be a significant factor effecting mill operation. In 2012/13 an FPInnovations study was carried out to better understand the effects of log moisture content on the manufacturing operations at a western Canadian OSB mill. The information collected was intended to assist the mill to make informed decisions on log yard management and harvesting and also to understand the best possible scenarios for producing a quality product as cost effectively as possible. Of particular interest was whether benefits could be made by processing dryer wood as a means of increasing dryer capacity but without incurring significant costs resulting from lower strand quality, especially fines and the associated costs of increased resin usage and panel density.
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New attributes and economic analyses of composite CLT and value-added appearance-based CLT

https://library.fpinnovations.ca/en/permalink/fpipub39833
Author
Grandmont, Jean-Francois
Wang, Brad J.
Date
March 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Grandmont, Jean-Francois
Wang, Brad J.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2014
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Composites
Laminate product
Timber
Value added
Series Number
Transformative Technologies Program
W-3097
Language
English
Abstract
The objective of this study was to examine new attributes and conduct economic analyses for composite CLT (CCLT) and value-added appearance-based CLT products manufactured with varying substitution of softwood lumber with structural composite lumber (SCL) and hardwood lumber. Incentives for including such materials could be aesthetic, structural and economic. Structural and aesthetic property assessments were carried out on prototype CLT panels. Multiple CLT panel configurations (17) were evaluated to assess the effects of including hardwood and SCL materials in the layups. Presence of hardwood in the panels’ configuration generally led to higher checking and density. Because of the higher shrinkage of hardwood, the bondline suffered from more delamination. A lower density hardwood (aspen) was included in some configurations and exhibited a greater direct compatibility with current Canadian manufacturing process. Changes to this process, such as selecting a hardwood specific adhesive may lead to improvements. SCL’s inclusion in the panels’ layup revealed to be fairly compatible with the current CLT manufacturing process. Both LVL and LSL products performed equally well or better than the reference lumber-made CLT panel for the bondline quality, dimensional stability and visual defects development. The efficiency of the manufacturing process of the prototype CLT panels was improved when EWP was included in the layup. The lesser amount of components and the readily flat surface of SCL may have a positive impact on the economics of CLT manufacturing due to an improved efficiency. Substitution products evaluated are characterized by a higher market price than lumber. CLT made from a combination of LSL or LVL and softwood lumber would cost about $100/m3 more to get the same return if there were no changes in the manufacturing. The burden of this cost increase would have to be offset by unique series of attributes that would add value for the customer and/or by a greater manufacturing efficiency.
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Fire stops and sealing joints in cross-laminated timber construction

https://library.fpinnovations.ca/en/permalink/fpipub39835
Author
Dagenais, Christian
Date
March 2014
Material Type
Research report
Field
Sustainable Construction
Author
Dagenais, Christian
Contributor
Canadian Forest Service.
Date
March 2014
Material Type
Research report
Physical Description
20 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Joints
Fire
Resistance
Laminate product
Wood frame
Series Number
301006715
E-4881
Location
Québec, Québec
Language
English
Abstract
The main objective of this study is to evaluate the fire-protection F- and T-ratings of selected fire stops and sealing joints in cross-laminated timber assemblies, in accordance with CAN/ULC S115 test method, “Standard Method of Fire-Tests of Firestop System”. Recommendations are given in this report with respect to proper detailing to ensure that the tested closure devices, when used in mass timber plate construction, will perform as expected. It is noted that test data is to date limited, and further testing may result in revision of these recommendations.
Cross-laminated timber
Laminated products - Fire resistance
Laminated products - Joints
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Evaluation of two loader-forwarder configurations on steep slopes

https://library.fpinnovations.ca/en/permalink/fpipub39849
Author
Strimbu, Vladimir
MacDonald, A.J.
Date
June 2014
Material Type
Research report
Field
Fibre Supply
Author
Strimbu, Vladimir
MacDonald, A.J.
Date
June 2014
Material Type
Research report
Physical Description
14 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Steep slopes
Harvesting
Equipment
Loaders
Forwarders
Productivity
Costs
Advantage
Series Number
Advantage ; Vol. 15, No. 2
Language
English
ISSN
14933381
Abstract
Ground-based harvesting systems typically provide lower operating costs than cable systems on steep terrain. Expanding the operating range of ground-based equipment on steeper slopes is critical to the sustained economic health of the forest industry. FPInnovations monitored the productivities of two loader-forwarders, a levelling-cab Tigercat LS855C and non-levelling cab Tigercat 880, operating on an old-growth coastal cutblock. The study indicated that both machines were capable of negotiating all the slopes in the operating area which averaged 34%. Productivity was primarily influenced by forwarding distance. The effect of forwarding distance on productivity remained almost the same with varying slope. Felling method and forwarding direction had the next largest effects on loader-forwarder productivity. Mechanical falling improved productivity most when used on short forwarding distances. The average measured reach of the LS855C was about 89% that of the 880, compared to the nominal ratio of 73% based on machine specifications. The smaller, levelling-cab machine was less productive than the larger machine in all situations, although the differences in machine productivities decreased as slope increased and was minor on the steepest slopes.
Abstract
Les systèmes de récolte au sol offrent habituellement des coûts d’utilisation inférieurs à ceux des systèmes par câbles en terrain accidenté. L’augmentation de la portée de l’équipement au sol sur les pentes abruptes est capitale pour assurer la santé économique de l’industrie forestière. FPInnovations a suivi la productivité de deux porteurs autochargeurs, soit un Tigercat LS855C à cabine à correcteur de niveau et un Tigercat 880 sans correcteur de niveau, travaillant dans un vieux peuplement sur un bloc de coupe côtier. Cette étude a montré que les deux porteurs ont été en mesure de négocier toutes les pentes du bloc de coupe, dont la moyenne était de 34 %. La distance d’acheminement a joué le plus grand rôle sur la productivité. L’effet de la distance d’acheminement sur la productivité est demeuré pratiquement le même, peu importe la pente. La méthode d’abattage et la direction de l’acheminement figurent ensuite sur la liste des facteurs ayant le plus influencé la productivité des chargeurs autoporteurs. L’abattage mécanique a permis d’augmenter la productivité dans la plus forte mesure lorsque les distances d’acheminement étaient courtes. La portée moyenne mesurée pour le porteur LS855C était d’environ 89 % de la portée du porteur 880, comparativement au ratio nominal de 73 % du fabricant. Le porteur autochargeur à cabine à correcteur de niveau, plus petit, s’est avéré moins productif que l’autre machine dans toutes les situations. Cependant, la différence de productivité s’est avérée de plus en plus petite à mesure que la pente augmentait, pour devenir mineure sur les pentes les plus abruptes.
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Glulam and CLT innovative manufacturing process and products development : effects of manufacturing parameters on the fire-resistance of CLT assemblies

https://library.fpinnovations.ca/en/permalink/fpipub39850
Author
Grandmont, Jean-Francois
Dagenais, Christian
Osborne, Lindsay
Date
June 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Grandmont, Jean-Francois
Dagenais, Christian
Osborne, Lindsay
Contributor
Canadian Forest Service
Date
June 2014
Material Type
Research report
Physical Description
35 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Laminate product
Fire
Resistance
Series Number
301007960
E-4888
Location
Québec, Québec
Language
English
Abstract
This study was part of a broader project entitled Glulam and CLT Innovative Manufacturing Process and Product Development. The main objective of the current study is to evaluate the effect of CLT panels manufacturing parameters on its fire resistance. More specifically: § To evaluate the effect of CLT manufacturing (gluing) parameters on the heat delamination resistance under standard fire conditions; § To improve the fire-resistance of the CLT panels.
Glulam
Laminated products - Fire resistance
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Performance et rentabilité d'un système de vision pour la détection de zones propices aux microfissures en surface du bois

https://library.fpinnovations.ca/en/permalink/fpipub39851
Author
Tremblay, Carl
Gignac, Manon
Date
April 2014
Material Type
Research report
Field
Sustainable Construction
Author
Tremblay, Carl
Gignac, Manon
Date
April 2014
Material Type
Research report
Physical Description
12 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Surfaces
Quality control
Lumber defects
Scanners
Series Number
301007997
E-4889
Location
Québec, Québec
Language
English
Abstract
Defects - Detection
CRACKS
SURFACES
Abstract
L’objectif général du projet consistait en l’évaluation de la performance d’un système de détection des zones propices aux microfissures dans un contexte industriel et en l’estimation de sa rentabilité économique.
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Système de protection pour le bois avec matériaux en couches minces

https://library.fpinnovations.ca/en/permalink/fpipub39852
Author
Vlad, Mirela
Date
March 2014
Material Type
Research report
Field
Sustainable Construction
Author
Vlad, Mirela
Contributor
Canadian Forest Service
Date
March 2014
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Finishing
Thin films
Plasma
Polymerization
Secondary manufacturing
Series Number
Technologies transformatives
Project no.301007966
E-4892
Location
Québec, Québec
Language
English
Abstract
PLASMA
COATING
POLYMERIZATION
Abstract
Le présent projet avait pour objectif principal l’étude de la faisabilité de déposer des systèmes multicouches pour le bois (érable à sucre - Acer saccharum) par plasma. Les objectifs spécifiques étaient les suivants: 1. Déposition par pulvérisation magnétron de couches minces d’oxydes métalliques pour améliorer la résistance aux UV et les propriétés mécaniques du bois; 2. Déposition chimique en phase vapeur de couches minces pour améliorer l’hydrophobicité; 3. Bâtir et caractériser des systèmes multicouches pour la protection du bois.
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Product category rules. For preparing an environmental product declaration (EPD) for product category North American structural and architectural wood products. Pilot version

https://library.fpinnovations.ca/en/permalink/fpipub39864
Author
FPInnovations
Date
April 2014
Material Type
Research report
Field
Sustainable Construction
Author
FPInnovations
Date
April 2014
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Environment
Manufacturing
Language
English
Abstract
This Product Category Rules (PCR) document is intended for companies preparing an Environmental Product Declaration (EPD) for North American structural and architectural wood products (see Chapter 5.3 for definition of product category). The users of this PCR will be manufacturers of North American structural and architectural wood products and other interested parties. This PCR has been developed under the General Program Instructions for the FPInnovations’ EPD Program on Wood Building Products, prepared by FPInnovations, December 1, 2010. The PCR presents a structure that is intended to ensure a harmonious approach is taken to derive, verify and present EPDs for solid wood products.
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Développement d'une technologie de séchage par haute fréquence en continu pour améliorer la fabrication de produits à valeur ajoutée

https://library.fpinnovations.ca/en/permalink/fpipub39873
Author
Lavoie, Vincent
Date
2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Lavoie, Vincent
Date
2014
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Drying
Kilns
Seasoning high frequency
Series Number
301007951
E-4896
Location
Québec, Québec
Language
French
Abstract
CONTINUOUS PROCESS
HIGH FREQUENCIES
KILNS
DRYING
Abstract
Ce projet consiste à faire la démonstration à l’échelle semi-industrielle d’un procédé de séchage de précision par haute fréquence en continu développé pour améliorer la qualité des produits séchés à la fin de la première ou au début de la deuxième transformation du bois. Plus spécifiquement, les objectifs du projet sont de : Ø Concevoir, fabriquer et démontrer le fonctionnement d’un séchoir par haute fréquence en continu à l’échelle préindustrielle qui peut être intégré dans les usines de rabotage ou à l’entrée des usines de deuxième transformation; Ø Transférer la technologie à un intégrateur devenant le fournisseur de l’équipement pour l’industrie canadienne de la transformation du bois.
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OASIS : outil d'analyse du séchage et de stratégies de prétriage - Mise à jour

https://library.fpinnovations.ca/en/permalink/fpipub39874
Author
Lavoie, Vincent
Date
2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Lavoie, Vincent
Date
2014
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Drying
Kilns
Sorting
Computer software
Energy
Costs
Series Number
301008028
E-4897
Location
Québec, Québec
Language
French
Abstract
Seasoning - Kiln drying - Computer simulation
Seasoning - Kiln drying - Cost
SORTING
ENERGY CONSUMPTION
Abstract
Les objectifs de ce projet consistent à : Ø Intégrer un module énergétique pouvant servir à démontrer la consommation énergétique thermique et ses coûts et également démontrer les gains énergétiques reliés à différentes stratégies de triage; Ø Intégrer une base de données générique pour les essences de l’Ouest canadien. Tel que présenté dans l’introduction, les objectifs initiaux relativement à l’intégration d’un module de reséchage et à la revue des pratiques de triage à travers le Canada ont été remplacées par la mise à jour du logiciel nécessaire et passant par une recodification du logiciel d’un langage Visual Basic à C#.
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Étude sur la prévention des microfissures en surface des lames de plancher

https://library.fpinnovations.ca/en/permalink/fpipub39876
Author
Tremblay, Carl
Date
March 2014
Material Type
Research report
Field
Sustainable Construction
Author
Tremblay, Carl
Contributor
Canadian Forest Services
Date
March 2014
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood flooring
Finishing
Series Number
Technologies transformatives
Project no. 301007995
E-4900
Location
Québec, Québec
Language
French
Abstract
Engineered wood floors
FINISHING
Crack formations
Abstract
Des manufacturiers de lames de plancher font souvent face à un problème de microfissures en surface du bois. Ces microfissures sont généralement détectées suite à l’application du produit de finition en usine et même, plus souvent, suite à la livraison et à l’installation des lames de plancher chez le client. Un essai de finition de lames de plancher en bois d’érable, réalisé en 2012, avait démontré l’effet bénéfique d’un délai de refroidissement à l’air libre des lames avant emballage sur l’apparition de nouvelles gerces en surface. Dans le présent projet, un essai de finition de lames de plancher en usine a été réalisé selon différents scénarios impliquant à nouveau un refroidissement des lames avant leur mise en boîte. La répétition de cet essai ne s’est pas avérée aussi concluante, car un nombre limité de nouvelles gerces ont été observées lors du procédé conventionnel de finition. Toutefois, certains facteurs peuvent expliquer en partie les résultats obtenus ici dont un camouflage accru des gerces en surface lors de la finition des lames et aussi, une humidité relative (HR) supérieure de l’air à l’intérieur des boîtes en cours d’entreposage des lames. Néanmoins, l’essai de finition réalisé dans le présent projet a démontré à nouveau l’absence de nouvelles gerces en surface observées suite aux étapes de finition et d’entreposage en impliquant une période de refroidissement à l’air du matériel avant la mise en boîtes des lames. Ce même résultat fut observé lors de l’essai précédent de 2012. L’essai de finition de lames de plancher réalisé dans le cadre de ce projet a démontré que des gerces camouflées à l’étape de la finition peuvent réapparaître plus tard. En effet, des proportions de gerces camouflées variant de 18 à 26% selon les scénarios de l’essai sont réapparues suite à des cycles en chambres de conditionnement. Le refroidissement des lames avant la mise en boîte n’a pas eu d’effet favorable sur ce phénomène. Des systèmes de cuisson à moindre chaleur ont été développés comme, par exemple, les systèmes UV DEL et UV pulsé. Les informations recueillies sur Internet et auprès des manufacturiers de ces systèmes témoignent d’un plus faible transfert de chaleur vers le substrat en cours de finition. Toutefois, nos recherches ont démontré la faible disponibilité actuelle de ces systèmes pour la finition du bois. Des manufacturiers de ligne de finition comme Cefla North America ont reconnu la problématique possible des hautes températures atteintes en surface de différents substrats en cours de finition. Ce manufacturier offre aujourd’hui des options telles que les lentilles au quartz pouvant être ajoutées aux lampes UV conventionnelles afin de réduire le transfert de chaleur. L’utilisation des finitions actuelles avec l’utilisation de ces options, sans modifications requises, demeure toutefois à être validée.
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Further development and commercialization of ultra-low density composites : investigation of the formulations impact on drying (I)

https://library.fpinnovations.ca/en/permalink/fpipub39877
Author
Zhang, Yaolin
Deng, James
Cai, X.
Date
June 2014
Material Type
Research report
Field
Bioproducts
PDF
Ajoutez cet article à votre liste de sélections pour demander le PDF - Add this item to your selection list to request the PDF
Author
Zhang, Yaolin
Deng, James
Cai, X.
Contributor
Canadian Forest Services
Date
June 2014
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomaterials
Subject
Composites
Drying
Density
Packaging
Series Number
Transformative Technologies Program
Project no.301007944
E-4901
Location
Québec, Québec
Language
English
Abstract
This study is a subtask under the “lab experiment on drying” project. This investigation consists to: 1) screen the main factors of the formulations impact on the drying process of the ultra-low density fiber composites (ULDC); 2) evaluate the effects of these main factors and try to optimize the formulations to shorten the drying process of ULDC; 3) have parameters for setting-up the new dryer.
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Optimal log diameter sorting for veneer processing

https://library.fpinnovations.ca/en/permalink/fpipub39888
Author
Wang, Brad J.
Dai, Chunping
Date
May /2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Brad J.
Dai, Chunping
Date
May /2014
Material Type
Research report
Physical Description
17 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Sortyards
Logs
Plywood
Sorting
Temperature
Series Number
W-3124
Language
English
Abstract
Log yard management has a significant effect on plywood/LVL manufacturing, particularly in the aspects of log conditioning, veneer processing and product quality. At present, log conditioning is seldom optimized due mainly to the variation of species and log diameter, log storage time and seasonal climate changes. The key objectives of this work were to: 1) develop a new computer program to simulate how log temperature and conditioning time change with regard to log diameter sorting and conditioning parameters; and 2) determine the optimal log diameter sorting points in order to achieve the best log conditioning for peeling. A new computer simulation program FPLogcon™ was successfully developed to simulate how log temperature and conditioning time change with regard to log diameter sorting and conditioning parameters in the plywood and LVL mills. Through computer simulation and two case studies, the benefits of log diameter sorting were successfully demonstrated and the log diameter sorting breakpoint was further optimized. For spruce in mill A, compared to no diameter sorting (control), the optimum diameter sorting could result in about 28.8% reduction in heating time, and about 17.5% increase in equivalent log volume within the target temperature range. For lodgepole pine in mill B, in the summer, compared to no diameter sorting (control), the optimum log diameter sorting breakpoint was 9-in, resulting in about 15% reduction in equivalent heating time (no change in equivalent log volume). In the winter, the optimum log diameter sorting point was 8-in, leading to about 4.5% increase in equivalent heating time along with an 11.6% increase in equivalent log volume within the target temperature range. For plywood/LVL mills, specific benefits of log diameter sorting will include increasing the uniformity of log temperature distribution and thus veneer quality, and reducing heating time and thus energy consumption, increasing lathe efficiency, and reducing downtime and spin-out rate during peeling. Mill results will be collected to validate the benefits of optimum log diameter sorting in the new fiscal year.
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Round robin test of structural wood adhesive according to CSA O112.9 standard

https://library.fpinnovations.ca/en/permalink/fpipub39909
Author
Wang, Xiang-Ming
Date
July 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Xiang-Ming
Date
July 2014
Material Type
Research report
Physical Description
11 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Standards
Adhesives
Test methods
Series Number
Transformative Technology
E-4903
Location
Québec, Québec
Language
English
Abstract
A round robin study using the CSA O112.9-10 standard was conducted with three (3) participating test laboratories in Canada as recommended by the Standards Council of Canada (SCC). The study included only the block shear test under three test conditions (dry, vacuum-pressure, and 9-cycle boil-dry-freeze). Test specimens were prepared using black spruce as substrate and phenol-resorcinol formaldehyde adhesive as the bonding agent. All participating test laboratories passed the shear test of the CSA O112.9-10 standard in which the requirements are based on quantile parameters (median shear strength, median and lower quartile wood failure). This finding showed that the block shear test method of this adhesive standard was reproducible among three well-known test laboratories in Canada, all of which have been qualified by the SCC for the ISO 17025 accreditation program. The test laboratories, however, exhibited some differences in terms of average shear strength and wood failure in the three test conditions. Some possible reasons were suggested for these differences.
Glue - Tests
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Élément 4 : Initiative de recherche sur les bois feuillus - Développement de nouveaux procédés et de nouvelles technologies pour le secteur des bois feuillus ; Meilleures pratiques pour éviter la formation de gerces et de fentes sur les produits de bois feuillus. Première partie - Gerces et fentes : causes et prévention

https://library.fpinnovations.ca/en/permalink/fpipub39912
Author
Yang, D.-Q.
Normand, D.
Date
April 2014
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Yang, D.-Q.
Normand, D.
Date
April 2014
Material Type
Research report
Physical Description
23 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Hardwoods
Lumber defects
Series Number
Programme des technologies transformatrices
Projet no TT4.3.03
Project no.201005167
E-4906
Location
Québec, Québec
Language
French
Abstract
Hardwoods - Defects
Control
Abstract
La formation de gerces et de fentes sur les produits du bois est un problème majeur pour les fabricants de produits de bois feuillus et les consommateurs. En effet, des gerces et des fentes peuvent se former sur les billes, les sciages verts et séchés et sur les produits finaux et ce, en cours de fabrication, de séchage, de transformation, d’entreposage et d’utilisation finale des produits du bois. De nombreux facteurs internes et externes influent sur la formation de gerces et de fentes. Signalons notamment l’essence, la teneur en humidité du bois, la méthode d’entreposage, les procédés de séchage, la température, l’humidité relative, la vitesse de l’écoulement de l’air et les rayons solaires. Bien qu’il soit impossible d’empêcher complètement la formation de gerces et de fentes, il est toutefois possible d’en limiter le nombre à un niveau acceptable par l’application de mesures appropriées. Parmi ces mesures, on compte non seulement les meilleures pratiques relatives à la récolte, à l’entreposage, au débitage et au séchage du bois, mais aussi l’utilisation de dispositifs mécaniques et le contrôle des conditions ambiantes de l’utilisation des produits finaux. Le présent rapport fait état de connaissances scientifiques sur la nature de différents types de gerces susceptibles de se manifester sur divers produits du bois, les conditions qui en favorisent la formation et les mesures de contrôle connexes.
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