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Nueva tecnología para la madera
contrachapada y la industria LVL
Expocorma
Concepcion, Chile
10 Noviembre 2017
Timo Reinikainen
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Wood product prices
0 100 200 300 400 500 600 700
LVL
Plywood - appearance
Plywood - construction
MDF
OSB
Sawn lumber
Particleboard
USD/m3
2
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Wood product prices
0 100 200 300 400 500 600 700
LVL
Plywood - appearance
Plywood - construction
MDF
OSB
Sawn lumber
Particleboard
USD/m3
3
Plywood and LVL
have higher value added
and better wood paying capability
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Use of tree
4
Appearance grade
plywood
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Adding value
5
Construction grade
plywoodLVL
Appearance grade
plywood
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Raute’s solutions cover the
entire production process
• Veneer peeling
• Drying and veneer grading
• Composing
• Veneer patching
• Veneer scarf-jointing
• Gluing / layup
• Pressing
• Panel handling
• Overlaying
• Automation:
• Machine automation
• Machine vision
• Measuring and grading technology
• Production and quality control data management
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Automation:
Machine automation
Machine vision
Measuring and grading technology
Production and quality control data management
LVL production technologyLVL = Laminated Veneer Lumber
Dry veneer processing
Green veneer
processing
Lay-up and
pre-pressing
Hot pressing
Billet handling
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SmartMill
9
Understanding your mill performance is the key to a profitable
production.
EFFICIENT
PRODUCTION
LINES
SCANNING
AND
MEASURING
TECHNOLOGYIn all processes
Mill Performance
DIGITAL
SERVICES
MillSights
MillMonitor
eLearning…
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Scanning and measuring technology
in all processes
Panel grading Panel repairing
Veneer lay-up
Veneer dryingVeneer peeling
Veneer
composing
Veneer patching
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HD scanning at XY centering
• Most accurate centering
and block positioning
optimizing, automatic
calibration
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Camera scanner at rotary clipper
12
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Mecano G5 Analyzers• Defect types of Radiata Pine recognized by Mecano
Visual Defect Analyzer, VDA– Hole
– Open split
– Inner split
– Fishtail edge/end
– Wane
– Bark pocket
– Resin pocket
– Dark knot
– Sound knot
– Loose knot
– Press defect
– Blue stain
– Roughness
– Waviness
– Shelling
– Overlap
– Mechanical defects
– Loose trash
• Recipes with parameters for the accepted sizes and number of defects
• Production quality reports
• Scenario analysis
13
G5 Tools
G5 Analyzers
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Defect detection with F-imaging
14
Fluoroscopy imaging
Micro cracks
Micro holes
Thin detection
Overlaps
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F-imaging examples
15
Classic color imaging Fluoroscopy imaging
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MVA
Moisture Volume Analyzer
• Benefits of accurate veneer moisture analysis and grading:– Accurate dryer control
– Less burnt sheets & less re-drying
– Regained capacity from dryer, less re-drying
– No blows in hot press
– Energy & capacity savings
– Effective production with less post-processing
– Improved yield
– Higher profit
– Savings in glue volume with lower emissions
– Better glue bond & stronger panels
– Improved bending stiffness
– Stronger veneer
16
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Moisture detection
17
• Moisture map
- Moisture map display for each sheet
- Statistics, e.g. average values
- Classification
- Individual moisture value for each
cell
• Moisture value for each area
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Stiffness (MOE)
can be included in veneer grading
Combined Data
Improve your production with
G5 grading solution
Complete Visual Analysis
Superior Moisture Control
Accurate Physical Properties
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Combined visual and moisture grading
at drying line
19
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Visual and thickness scanning
at composer
20
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VDA at automatic veneer patching
21
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VDA at automatic veneer patching
22
Automation not only
reduces manual work,
but also makes the
work better,
consistently with
higher precicion
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VDA
Panel repairing
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Digital services
MillSIGHTS
• Production data collection and reporting system
• Veneer, plywood and LVL mills
• Production data such as volumes, recovery rates and process downtimes
• Fast, accurate and reliable data transfer from production lines to database
• Available on cloud or on-premises
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Digital services
MillMONITOR
25
• Condition monitoring service
• Specially for maintenance team
• Measures the technical availability of production lines
• Assists in understanding the major reason for process downtimes and monitoring maintenance activities
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Digital services
MillMONITOR Plus
• Remote monitoring service intended to monitor real-time technical irregularities and
alarm occurrences
• Provides a comprehensive understanding of critical factors of line availability end
product quality
• Cloud based service which is monitored by Raute experts
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Digital services
eLearning
27
MillACADEMY
• Raute’s new on-line eLearning program
• On-line training accessible 24/7, from anywhere
with any device.
• Supports live training or can be a separate training
experience
• Easier training of shift workers
• Easy testing of employees’ skills and development
• Possible to manage users as a group, but also
make individual learning paths
• Easy to train and manage hundreds of people
• Raute provides and manages the service
• Raute provides statistics from training
• Raute provides the training materials
• Raute provides exams
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Green veneer composing
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Green Composing principle
Clipping
lines
RandomTrash Sheet cut Tape pieces on both
sides of the veneer
Defects in sheets are
detected by a scanner,
defected parts are cut out by
a defect clipper.
Good parts of veneer sheets
are jointed ”composed”
together with tapes.
The composed veneer mat
is clipped to sheets with
sheet clipper.
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Joints wet veneer using tape
Joints wet veneers,...
...using tape.
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Process importance:
Recovery and drying efficiency:
• Green randoms for plywood production instead of chipping to
pulp or fuel.
• Reduced manual labour due to automated handling of veneer
sheets (dryer infeed, dry veneer stacking) instead of randoms.
• Higher dryer efficiency with drying of full sheets only.
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Green Composing principleIn the green veneer composer the clean clipped and aligned veneers
are jointed together with tape (containing thermosetting melamine glue)
applied on both sides of the veneer with the aid of electrically heated
presses, 2x7=14 tape pieces per joint of 5’ veneer .
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Defect recognition at Green Composer
Mecano G5 VCO-F• Defects are detected using
combination of the color camera and thickness detectors
– Mecano G5 VCO-composing(Fluoroscope)
– Illumination underneath and above the veneer
– selected color channels are used to recognize certain defects
• Balance with quality and recovery can be adjusted
• Good defect recognition with VCO is important to avoid taping to the surface where the tape cannot bond properly
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RautePro
Peeling line
35
1 mm veneer for fruit boxes
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RauteLite
Spindleless peeling line
36
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RauteLite
Liquid extrusion gluing
37
• Even glue spreading
• Less glue
• Better quality
• Manual layup
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LVL
Laminated Veneer Lumber
• Continuous lay-up is the heart of all Raute LVL lines
– Raute’s LVL process combines continuous lay-up and cycle press
• Continuous lay-up with pre-pressing produces an endless LVL lay-up, out
of which custom length LVL billets are cut
• From semiautomatic RautePro solutions to fully automatic hands-free
RauteSmart lines.
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Lamination effect in LVL
39
One veneer
presents only
5-10 % of the
thickness of
the LVL panel.
Defects in one
veneer sheet
have only a
marginal effect to
the strength of
the whole LVL
panel
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Strength deviations
40
• Strength of LVL is higher
• LVL has much smaller
deviation in strengthStrength
LVL
Lumber
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