FIELD: metallurgy.
SUBSTANCE: method involves arrangement of parts on the device in vacuum chamber, application of negative electrical potential to parts, ionic cleaning of parts surface and application of coating to them by means of electric arc evaporation of materials. Arc is excited and kept between anode and at least one flat long cooled cathode L long by alternating connection of its opposite edges to electric power supplies. Frequency f of alternating connection of opposite edges of cathode is chosen during coating application depending on longitudinal size of evaporation zone from the condition: /f= ν/1, where ν - movement speed of cathode spot area under influence of electromagnetic arc current field.
EFFECT: high quality of applied coating on parts of composite shape.
27 cl, 1 ex, 2 tbl
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RU2440877C2 |
| PROCEDURE FOR PRODUCTION OF BUILT-UP COATING ON BLADE BODY OF TURBO-MACHINE | 2009 |
|
RU2434973C2 |
| METHOD OF REPAIRING VANES MADE FROM TITANIUM ALLOYS | 2009 |
|
RU2420382C2 |
| METHOD OF RECONDITIONING ALLOYED STEEL BLADES | 2007 |
|
RU2354521C2 |
