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topic 9525

Ceramic coating on welded steel elbows


I want to apply ceramic coating on welded steel elbows used for supply of coal to thermal power plants. Which is the right method?

J Daniel Donald
- Trichy, Tamilnadu, INDIA


What is the goal of coating the steel with ceramic? Wear resistance, corrosion resistance, thermal insulation? Are you looking to coat the inside or outside of the elbow? The answer to these questions will help people give you a more appropriate answer.

John Davis
John Davis
- Berthoud, Colorado, USA


A high energy thermal spray would probably do the best as you can apply a fair thickness. There are lots of "mixtures" that can be applied. Wear, resistance to shock, chipping, adhesion vary wildly with the different materials. If "plasma" is used, make sure that it is one with high energy capability.

James Watts
- Navarre, Florida

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