Nozzle arrangement and method for cold gas spraying
AssigneeSiemens Aktiengesellschaft
InventorsRene Jabado, Jens Dahl Jensen, Ursus Krüger, Daniel Körtvelyessy, Volkmar Lüthen, Ralph Reiche, Michael Rindler, Raymond Ullrich
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Abstract
The invention relates to a method of, and a nozzle arrangement for, spraying cold gas. The nozzle arrangement has a first nozzle and a second nozzle, which is arranged within the first nozzle. The first nozzle is fed a gas which optionally contains particles. The second nozzle is fed a particle-containing gas. The particles are applied to a surface of the substrate by means of the gases.
Claims18
A nozzle arrangement for coating a substrate with cold gas spraying, said nozzle arrangement comprising:
- a first nozzle for delivering gas containing a first set of particles to be applied on a surface of the substrate;
- and
- a second nozzle for delivering gas containing a second set of particles to be applied on the surface of the substrate, said second nozzle being arranged inside the first nozzle wherein the second nozzle comprises a converging section and a diverging section;
- wherein a size of said first set of particles is greater than a threshold size, and a size of said second set of particles is less than the threshold size.
A method for coating a substrate via cold gas spraying, comprising:
- delivering a gas containing a first set of particles to a first nozzle;
- delivering gas containing a second set of particles to a second nozzle wherein the second nozzle is arranged in the first nozzle;
- and
- applying the first and second set of particles onto a surface of the substrate via the gases;
- wherein a size of said first set of particles is greater than a threshold size, and a size of said second set of particles is less than the threshold size.
Dependencies are inferred from the claim text.