| abstract |
Process for depositing coatings (4; 104) on pieces (3;103), comprising the steps of providing at least one piece (3; 103) on which the surface coating (4; 104) is to be deposited, providing at least one plasma torch (2;102), switching ON said plasma torch (2;102), supplying, in said plasma torch (2;102), a coating material comprising at least two different powders (111, 120/111; 120, 124) separately injected into the plasma through two or more distinct respective pipes (110, 118,110,118, 123). The system comprises a plasma torch (102) suitable to deposit said coating (104) on said piece (103), and it is characterized in that it comprises at least two distinct pipes (110,118;110,118,123) for supplying at least two different coating powders (111,120;111;120,124) to said plasma torch (102). |