Goal: Clean Turbine Blades for Refurbishment
Whether you’re refurbishing landbased gas or jet-engine turbines, MircoBlasting is the ideal method of cleaning turbine blades. When turbines are split in two for maintenance, hot path components and combustion components are pulled out for repair. These parts take in and distribute cooling air within a turbine through multiple small holes, which can number more than 140 per component and be as small as 0.08 mm (.003″) in diameter. The holes are often present in airfoils and shrouds of many first- and second-stage components. Because of the complex geometry of these parts, MicroBlasting is ideal for cleaning coating and contaminants from them.
Turbine blades have many small holes that easily become plugged.
Removing the Protective Layer
Want to see how the process works? Click the video above.
Spent abrasive can be sent to the landfill.
The Comco Difference
Sixty times per second, Comco’s patented modulator injects abrasive into the blaster’s air stream. The modulated mixing process is specifically designed to handle the 25 to 50-micron particles traveling through miniature nozzles. It keeps the abrasive stream uniform, cleaning air holes more effectively and avoids surges. Surging results in air passages becoming plugged rather than cleaned. Read more about our modulator here.