FIELD: spraying devices, particularly designed for spraying particulate materials.
SUBSTANCE: device for applying metal alloy coatings on article by cold spraying method has nozzle. Nozzle comprises channel for powder spraying having convergent and divergent parts. At least divergent channel part is formed of polybenzimidazole. In accordance with the first embodiment convergent channel part is also made of polybenzimidazole.
EFFECT: prevention of spraying material accumulation on nozzle surface, increased ability of coating spraying.
5 cl, 4 dwg
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