Components of CRC-Evans’ Vision System include the V Weld, an external welding machine with adaptive weld technology; the V Bevel for bevel inspection at the beveling station; the V Root for root inspection at the welding station; and, the V Purge – a fully automatic purge control system to control and monitor the purge chamber parameters. All the equipment utilises laser vision technology.
New Product Development Vice President Shankar Rajagopalan said “We engineered laser vision technology into our welding technology to enhance productivity in narrow groove pipe joints and increase weld quality through pre-weld and post-weld in-line inspection. It raises the bar for the whole industry.”
The advantages of laser vision
The incorporation of new laser technology enables:
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- Real-time tracking at higher speeds;
- Real-time closed loop control;
- Adjustment to travel speed, wire feed speed, and oscillation width to achieve adaptive fill around the pipe; and,
- Inspection and reporting of the bevel and root bead in the critical path for immediate correction.
In addition, a computer report of all welds and inspections is available as a permanent record for operators and owners.
The Vision System will be used for the first time in the field as part of an Incoloy-clad project in Norway.
CRC-Evans provides pipeline construction equipment, automatic welding systems, managed subsea services, field joint coating and heat treatment, and non-destructive testing. Based in Houston, Texas, CRC-Evans has offices in North America, Europe, South Africa and the Middle East.
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