NDT - Corroscan - Corrosion Mapping
The Objective
As a Non-Destructive Testing method, conventional manual ultrasonic inspection is the most reliable technique for measuring wall thickness. The measured wall thickness is read from the ultrasonic device and reported. However, the exact location where the measurement was taken as well as the projected coverage of the measurements is difficult to report, which makes the reproducibility of these measurements very poor. Corroscan inspection is applied in situations where both exact wall thickness measurements and monitoring is required to ensure safe operation of the part under inspection.
The Solution
With the Corroscan system both wall thickness and measurement location data are digitally stored. This not only enables us to give a clear and comprehensive overview of wall thickness patterns of pre-defined areas, it also offers a good possibility to monitor these patterns in time with very accurate and reproducible follow up inspections.
Corroscan as one of the applied advanced NDT method by SGS is an automated pulse-echo inspection which stores wall thickness measurement data together with their positions by means of a computer. Using Corroscan to measure and monitor wall thickness has several advantages compared to using manual pulse-echo, such as:
- Digital storage of measurement and location
- Digital storage of all system settings
- Extremely good reproducibility
- Guaranteed 100% coverage of the inspected area
- Visualization of wall thickness patterns using B-, C- and D-scan presentation in Corroscan reports
The Corroscan system can be operated on a 12 Volts battery as well as on 110 to 240 Volts AC and is very compact, making it suitable for inspections at almost every location.
Why SGS?
SGS continuously develops its services and applications. Our worldwide NDT services are not only integrated with our Asset Integrity Solutions, but also with our Material Testing Laboratories and seamlessly fit into our Supply Chain Services. Our Non-Destructive Testing Services are packaged around your assets and production processes to be utilized whenever required and efficient.
Our Services for NDT Corrosion Mapping
Corroscan inspection is mainly applied in situations where both exact wall thickness measurements and monitoring is required to ensure safe operation of the part under inspection.
Typical applications are:
- Pressure vessels as an alternative for radiography
- Tank bottoms
- Non-intrusive inspections for extending the time interval between intrusive inspections
The outcome of a Corroscan inspection is a clear and comprehensive report. To give a good overview of all the measurements taken they are presented in C-scan (top view) by using a color scale to symbolize wall thickness.
On places of interest cross sectional views (B- and D-scans) can be added to give a distinct insight on wall thickness reductions. The report can be presented on paper, as well as on CD-ROM.
SGS Industrial Services offers Corrosion Mapping Service also combined with other methods of Non-Destructive Testing.
Send us your inquiry on Corroscan now.
NDT Training
SGS trains and certifies people to the highest inspection standards in all parts of the world. Wherever you are based when you procure equipment you deserve the highest standards of personnel and certification as a basis for Quality Assured Inspection. SGS will train and invest continuously in its assets - its Inspection Workforce.
Visit the SGS-NDT Training and Examination Center in China.
Have a look at all Non-Destructive Testing Services methods.
|
