The Universal Metals Identifier for
NDT
Trevor Smith, Technical Director
Arun Technology Ltd., U.K.
Presentation for the 2nd African Convention for NDT
Defining the Universal Metals
Identifier
Identify or Confirm Grade
Single Test lasting just few seconds
On-site using hand held probe
Low size and weight
Minimum of Maintenance
No calibration, drift correction, etc.
Comprehensive coverage: Al, Cu, Zn, Fe, Ni, Ti, Co, Mg, Pb, Sn and Zr base
Applications
PMI
Goods inwards check at construction
On site survey on the plant
Mix-Up Checking
Identify which is not the correct grade
Sorting
Scrap sorting to enhance value
Technology Options
X-ray Fluorescence
Risks and costs associated with source
Poor results for some elements e.g. Al, Mg and Si
Optical Emssion
Bulkier and Heavier
Principles of Miniature Spectrometer
Metalscan 1650
Metalscan 1650
Case Study 1
Oil Refinery
New Crack Gas Plant
PMI on every component at goods inwards in
stock area
PMI on every pipe flange after construction (On-site Hot-Work Permit)
Audit of Old Stock in Yard
(some as old as 20 years)
Case Study 1
Oil Refinery
Goods Inward Policy
100% goods inwards inspection of alloy and
stainless components
10% sample inspection of carbon steels
Case Study 1
Oil Refinery
Practicalities of On-Site Working
110V a.c. generator on site (waveform and
frequency unknown!)
Unit fits the 21" or 24" diameter access holes to tanks and boilers
Keep the Electrode Clean
Case Study 1
Oil Refinery
"
The
surface of each component was prepared using only a file and tests conducted
even when there was grease or water on the surface of the metal. The results
obtained were sufficiently precise to allow verification of all the
material."
Case Study 1
Oil Refinery
Case Study 2
Robot Mounted Grade Checking
- Japanese Metals Stock Holder
- Steel Alloy Bar, Rod and Log
- Robot Mounted Sensor as part of an Automated Warehouse
- Minimum of samples preparation - burn through varnish
Case Study 2
Robot Mounted Grade Checking
Case
Study 2
Results of Initial Trials
Case Study 2
Final Results
Conclusions
Robust, practical NDT for grade
identification or checking
Satisfactory results even on poorly prepared surfaces
Coming close to the "Ideal" universal metals identifier.
The End
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