05-15-2008, 01:51 PM
GE is selling wind turbines like hot cakes! I was told that parts of the wind turbine are thermal sprayed. Does anyone know what parts of wind turbines are sprayed and by what process and material?
05-16-2008, 10:47 AM
|RE: Wind turbines
What parts - the actual columns themselves are either sprayed for 300-500mm from the joints inside and out for land based and the whole column for off-shore. Often, brackets and ladders etc. inside the towers are also sprayed. The propeller cones and hubs are usually sprayed too. Sometimes, depending on the design/materials, the cowling over the generator connected to the propeller is coated. There are a few other mechanical parts coated too.
Most common process is arc sprayed zinc or zinc/aluminium 85/15. Due to the size, access is often an issue so systems with long supplies packs are favoured for some items. Other companies prefer higher throughput systems but it is often more efficient to spray at lower rates but with more flexibility.
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