METHOD FOR PRODUCING AN ABRADABLE COATING ON A TURBOMACHINE

• Main Authors: HERTTER, MANUEL, WACHTER, WOLFGANG
• Format: Patent
• Language: English; French; German
• Published: 05.09.2012
• Subjects: BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINE PLANTS IN GENERAL; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; WEAPONS

In a method for producing an inlet coating (21) on a surface of a turbomachine (10), an electric arc (37) is produced between a first electrode (31) having a first material and a second electrode (32) having a second material. A gas stream (42) is produced through the electric arc (37) onto the surface, which entrains the first material and the second material from the electric arc (37) and deposits them on the surface to form the inlet coating (21) or a precursor layer (22) of the inlet coating (21).