In 2011, our client provided us with two blades for repair development. Our weld-repair process involved the application of a solid Stellite bar-nose to the leading edge.
The plant’s internal test program deemed our blades to be suitable. So in 2014, we received a further six blades. After we had repaired the blades, our client installed them into one of its units to assess performance under operational conditions. At the same time, it tested the performance of blades worked on by the OEM and other ISPs. After 60 months in operation, our blades showed only minor erosion to the leading edge. By contrast, other blades were severely eroded.
We also received four more blades in 2016. This was to enable the plant to undertake a second performance test in another of its units. After three years, there was only very light erosion present on the leading edge of these blades.