FIELD: metallurgy.
SUBSTANCE: invention relates to a technology of gas-thermal spraying, namely to plasma methods of spraying of wear-resistant coatings on parts operating under the simultaneous effect of wear and corrosive environments, and can be used in machine industry, metallurgy, power engineering and other areas of production. According to the method the dispersed ceramic powder is entered through the annular gap in air-plasma jet and its subsequent sputtering on the pretreated surface of the part. At the same time the dispersed particles of aluminium oxide Al2O3 are used, with the following ratio of fractional composition: 20-40 microns in an amount of 75-85% and less than 20 microns - the rest. Spraying is carried out at the plasmatron power within the 44-54 kW and air flow rate of 1-2 g/s.
EFFECT: increased microhardness and wear resistance of coating.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE OF WEAR-RESISTANT COATING APPLICATION ON STEEL PARTS | 2014 |
|
RU2594998C2 |
| METHOD OF WEAR-RESISTANT COATING APPLICATION | 2014 |
|
RU2578872C1 |
| METHOD FOR PLASMA SPRAYING COATINGS ON WORKING SURFACES OF AUGER | 2022 |
|
RU2782903C1 |
| METHOD FOR PRODUCING HOLLOW MICROSPHERES OF METAL OXIDES | 2017 |
|
RU2663886C2 |
| METHOD OF PRODUCING WEAR-RESISTANT COATING BASED ON TITANIUM-TITANIUM DIOXIDE SYSTEM | 2023 |
|
RU2823208C1 |
| HIGH-POWER PLASMA EVAPORATION OF HEAT-INSULATING COATING ON GAS TURBINE BLADES AND DEVICE TO THIS END | 2013 |
|
RU2567764C2 |
| PLASMA SPRAYING METHOD | 2022 |
|
RU2803172C1 |
| METHOD OF PRODUCING STRUCTURAL DENTAL CERAMICS BASED ON ALUMINIUM OXIDE | 2015 |
|
RU2585238C1 |
| METHOD OF APPLICATION OF PLASMA COAT | 2001 |
|
RU2200208C2 |
| PLASMA SPRAYING METHOD OF WEAR-RESISTANT COATING WITH THICKNESS MORE THAN 2 mm | 2017 |
|
RU2665647C2 |
