spare part stockcalibration room headquarters goteborg, sweden, founded 1979 sensor development...
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Spare part stock Calibration room
Headquarters Goteborg, Sweden,
founded 1979
Sensor development
Manufacture & assembly
Marketing and Sales
Service
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Global organisationHeadquarters in Gothenburg.
-Management
-Development
-Production
-Service
NA office in Charlotte, NC
-Sales
-Service
Offices in the UK, Germany and Finland.
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On line profile measurement in tube mills
Tube Profiler™
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Tube Profiler™
Design Criteria
• Able to measure true cross section profile and not miss concave surface features
• Require very low maintenance & have low running costs
• Provide fast measurement rate
• Advantages over existing systems in the market
• Suitable for measuring large bar and tube sizes
• High accuracy
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• Shadow measurement using camera and background light• Shadow measurement using laser scan micrometers• Laser lines and matrix cameras
Existing methods
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LIMAB Method
Rotating or Static optical triangulation
Static optical triangulation – round bars or tubes
Rotating optical triangulation – for non round bars or tubes
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Static Optical Triangulation
8 - 18 laser sensors measure distance to bar or tube
Each sensor measures at 2000 Hz
All sensors synchronised
Fastest profile mill gauge available today
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Rotating Optical Triangulation
18 sensors measure distance to bar or tube
Sensors mounted on ring which oscillates +/-300 degrees
Full cross section profile measured every 200 ms
1 cycle every 3.6 seconds (17 CPS)
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Shadow sensor limitation
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Existing Methods
In summary the shadow techniques does not measure the full profile when there are concave features
- To calculate the profile they have to ‘assume’ certain conditions to generated the cross section
Arrows show where there is missing data
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Optics
CCD Detector
Laser X-min X-max
Optical Triangulation: Principle
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The PreciCura™ laser sensor
Standard ‘off the shelf’ product
Accurately measures distance
High performance
Fast measurement 2000 Hz
Rugged Industrial sensor
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Profile measurement
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Movement compensation
Patented movementcompensation algorithm
CAN-bus communicationwith measurement server.
All sensors synchronised
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The Tube Profiler™ system
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Factory NetworkTCP/IP
Operator WS
Measurement Server
WSProductionMgm System
System Scope
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Frequent calibration not required andcan be completed in 5-10 minutes
Tube Profiler Calibration
Method - Static Gauge
Calibration tool has 3 reference diameters and rotates in measuring region
Method - Oscillating Gauge
Calibration tool has round and rectangle reference masters.Gauge rotates calibration masters fixed.
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Connection panel
With quick change connector, controls and air purge inlet.
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8-18 PreciCura sensors
CAN-bus communicationwith measurement server.
All sensors synchronised
Measurement wheel
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8 PreciCura sensors
CAN-bus communicationwith measurement server.
All sensors synchronised
TubeProfiler 8 Static lasers
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Frame controls side
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Pyrometer
Measures the temperatureof the bar as it passesthrough the frame.
Used for cold conversioncalculation of profile data.
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Encoder
4096 pulses per revolution.Angular resolution: 0.1°.CAN-bus communication.
(oscillating version only)
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Servo motor and gearbox
Oscillates the wheel ± 300°Rotation speed is approximately 17 rpm.Keeps track of wheelposition, rotation directionacceleration and deceleration.
(oscillating version only)
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Lifting table
Automatic positioning ofthe measuring object inthe center of the gauge ± 50mm in height.
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Operator Screen, Round material
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Operator Screen, Diameter & Ovality
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TubeProfiler Statistics
.slb files
•Records all the data measures for each tube or bar and saves as an .slb file
•Contains all the data that is used to compile the 2D & 3D graphs on the operator screen.
•Archived files can be ‘replayed’ on the Tube Profiler software
.txt summary files
•Records 26 separate key values for every tube. Files can be read by MS Excel or other software.
•Includes header information, tube ID, tube no., date, time and target size.
•For each tube the following data will be calculated: min, max, avg., max ovality, avg., ovality, tube temp, length (option) Cp & Cpk.
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Operator Screen, Flat material
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Operator Screen, Trend graphs
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Operator Screen, Diameter & Ovality
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• Measurement Range 20 < < 700mm
• Measurement Range (square, hex,..) 20 .. 400 x 20 .. 400 mm
• Measurement Range (flat, T x W) 5..50 x 5..400 mm
• Measurement cycle 50..200 ms
• Measurement system uncertainty 0.05 mm @ 2 (round bars < 300mm))
• Bar temperature < 1200 C
• Environmental temperature 15 – 25 C (temperature where cooling air is taken)
Specification
Note: HotProfiler can be supplied for measuring larger bar sizes
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HotProfiler at bar rolling mill
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HotProfiler at bar rolling mill
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HotProfiler at bar rolling mill
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HotProfiler at bar rolling mill
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HotProfiler at bar rolling mill
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HotProfiler
Video courtesey of Ovako Hofors, Sweden
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Easier to make setup of the mill and the possibility to record
results in a database for further analysis.
Comments from our HotProfiler customers
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Comments from our HotProfiler customers
The downtime in the mill is reduced because it is
easier to take decisions whether the rolled product is
within tolerances which means reduced the start-up time.
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This product is very reliable and easy to use with a minimum of
maintenance. It is an exceptional tool for the operational people
in the mill as well as for the process engineers and the marketing
department which can follow up the result from the rolling of the
products.
Comments from our HotProfiler customers
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Summary
Probably the fastest profile measurement systems available
True profiles
– Laser based optical triangulation measurement ensures
accurate and reliable measurement data, not calculated
profiles.
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Summary
Full monitoring of the process
– Immediate product and process feedback
– Allows for quick recognition and response to
out-of tolerance features
– Reduces waste caused by non-conforming production
– Reduces time and waste at product changes
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Summary
Compact design
– Easy to install and move in an existing line
– Easy to maintain
Network capabilities
– Easy to download parameters
– Easy to get reports
Designed for hot rolling mill environment
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HotProfiler™ some referencesCustomer Country Gauge Product sizes Date Ovako-Smedjebacken Sweden HotProfiler 390 ● 40-95 mm
▬ 6-60 x 80-255 mm 2001
Sandvik Steel Sweden HotProfiler 420 ● 72- 240 mm ▬ 70-175 x 75-175 mm
2003
Metal Ravne Slovenia HotProfiler 390 ● 26-105 mm ▄ 25-75 mm ▬ 6-60 x 40-260 mm
2004
Store Steel Slovenia HotProfiler 390 ● 21-140 ▄ 35-65 ▬ 6-62 x 50-200 mm
2004
Ovako-Hofors Sweden TubeProfiler ● 80-270 mm 2005 Ovako-Hällefors Sweden HotProfiler ● 11-85 mm 2006 ArcelorMittal Czech Republic HotProfiler ● 160-210 mm
▄ 180 mm 2007
Asco Metal-Allevard France HotProfiler ● 22-72 mm ▄ up to 210 ▬ 6-60 x 50-120 Hex 25-53 mm
2007
Asco Metal-Allevard France HotProfiler ● 11-75 mm 2008 Ovako-Hofors Sweden TubeProfiler ● 80-255 mm 2008 Benteler Germany TubeProfiler ● 110-125 mm 2008 Ovako Imatra Finland HotProfiler ● 20-95 mm
▄ 25x25 – 76x76 2008
IMS Germany HotProfiler ● 167-408 mm 2008 Ovako-Hofors Sweden TubeProfiler ● 138-360 mm 2009 Sunflag India HotProfiler ● 13-45 mm
▬ 6-90 x 25-125 Hex 13,3-38 mm
2009
Sunflag India WireProfiler ● 5,5-12 mm 2009
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Thank you