The present invention is directed to a process for coating the interior surfaces of an orifice in a substrate that forms a slurry fuel injection nozzle. In a specific embodiment, the nozzle is part of a fuel injection system for metering a coal-water slurry into a large, medium-speed, multi-cylinder...http://www.google.es/patents/US5061513?utm_source=gb-gplus-sharePatente US5061513 - Process for depositing hard coating in a nozzle orifice
Process for depositing hard coating in a nozzle orifice
