NDT & QA in Pipe Manufacturing · PIPE MANUFACTURING •Excluding seamless pipe, the process starts...
Transcript of NDT & QA in Pipe Manufacturing · PIPE MANUFACTURING •Excluding seamless pipe, the process starts...
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NDT & QA IN PIPE MANUFACTURING
Mirek Macecek Techno Scientific Inc.
Concord, ON
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ABSTRACT
• In every CANDU power station piping is an important part of the installation. In this presentation the welding and NDT methods to produce steel pipes will be reviewed.
• It will include ERW, spiral welded and LSAW welded manufacturing processes.
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• The NDT using mostly ultrasonic methods start with plate inspection for laminations and defects, and then customized system applications for each of the above processes.
• These are multi-channel systems typically 160 to 400 channels for the plate UT and typically 8-20 channels for the ERW to spiral weld inspection.
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• Sometimes the systems are combined to include a full body inspection of the manufactured pipe.
• In some cases X rays augment the UT testing.
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PIPE MANUFACTURING
• Excluding seamless pipe, the process starts with plate or coil. Then, we have:
1. ERW ( Electro Resistance Weld) Pipes;
2. Spiral Welded Pipes;
3. LSAW Pipes.5
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APPLICABLE STANDARDS• ANSI/AWWA
• API 5L
• ASTM A 53
• DIN 2440
• BS 1387
• SEP 1916/1917/1925
• Company Specifications such as: -Shell -Aramco (Saudi)
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160 CHANNEL PLATE UT SYSTEM
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DETAIL OF EDGE FOLLOWING PROBES
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ERW WELD AND FULL BODY TESTING
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PROBE ARRANGEMENT
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SAW PIPE UT SYSTEM
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SPIRAL WELD UTBLOCK DIAGRAM OF THE SYSTEM
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CALIBRATION DEFECT GEOMETRY
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TRANSDUCER CONFIGURATION
• 1 – Longitudinal Defect Detection
• 2 – Transverse Defect Detection
• 3 – Defect Detection in the HAZ
• 4 – Full Body Inspection (20% Coverage)
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SPIRAL WELD UT SYSTEM
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CLOSE UP OF PROBE HOLDERS
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CABIN VIEW OF PROBE CLUSTER
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LASER SEAM TRACKER CAMERA
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SEAM TRACKER DISPLAY
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REPORTING
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CONCLUSION
• The automated UT systems are capital intense, but they perform reliable ultrasonic inspection for improved quality, reliability and environmental safety of pipelines.