Patent ID: 8257146

Claim:
A process for surface preparation of mechanical parts to be coated with thermal spray technologies, comprising: a. treating the surface of the part with an iron-based abrasive material, b. washing said part with an acid solution to disaggregate and/or remove any remaining abrasive material, c. applying a basic solution comprising caustic soda to neutralize any remaining acid solution on the treated surface of the part, d. rinsing the part with distilled water to remove the caustic soda, thereby clearing the treated surface of any foreign material, and e. removing any liquid remaining on the surface by blowing pressurized air thereon or by utilizing a centrifugal effect of a rotary carousel, wherein, said iron-based abrasive material has a spherical morphology and is applied by a pressurized flow impinging on the surface of the part with a varying angle of incidence and a varying blowing pressure, and said treated surface of the part is coated by a coating technology.