FIELD: gas thermal technologies.
SUBSTANCE: invention relates to the field of gas thermal technologies. In the method for flame spraying of powder material to obtain a nickel-based coating, a thermal sprayer and a thermal dissociator installed coaxially inside its central channel are used. First, the activating additive - ammonia, is bubbled through the water and enriched with moisture up to 0.2-0.4 wt.% in relation to the technological consumption of ammonia. Then the flame formed during the combustion of acetylene and oxygen is activated by supplying moisture-enriched ammonia to thermal contact with the core of the main flame through the thermal dissociator, adjusting the depth of its penetration into the high-temperature core of the main flame by making the tubular thermal dissociator movable. The metal powder is fed under the thermal spray nozzle.
EFFECT: increasing the adhesion of the coating to the surface of machine parts and tools.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR GAS-FLAME SPRAYING OF POWDER MATERIALS TO OBTAIN A NICKEL-BASED COATING BY MEANS OF A THERMAL SPRAYER | 2019 |
|
RU2709312C1 |
| METHOD OF FLAME SPRAYING POWDER MATERIALS WITH PRODUCTION OF COATING ON NICKEL BASIS USING THERMAL SPRAYER | 2017 |
|
RU2667266C1 |
| METHOD OF FLAME SPRAYING OF METAL POWDERS | 1999 |
|
RU2169792C2 |
| METHOD OF THE GAS-FLAME SPRAYING OF THE METALLIC POWDER MATERIALS | 2003 |
|
RU2312165C2 |
| METHOD OF FLAME SPRAYING OF POWDERED MATERIALS | 0 |
|
SU1787171A3 |
| METHOD OF FLAME SPRAYING OF POWDER COATS AND BURNER FOR REALIZATION OF THIS METHOD | 2001 |
|
RU2211096C2 |
| GUN TIP FOR FLAME SPRAYING | 0 |
|
SU1186268A2 |
| FLAME SPRAYING TORCH | 1992 |
|
RU2031740C1 |
| METHOD OF SUPERSONIC GAS POWDER PAD WELD OF PROTECTIVE COATING | 2007 |
|
RU2346077C2 |
| METHOD AND APPARATUS FOR FLAME SPRAYING OF PULVERULENT COATINGS | 0 |
|
SU1240462A1 |
