The present invention relates to a system (1) and a method for coating a surface (3a) of an object (3) with a spray coating tool (2) spraying atomised coating particles (10) onto. A conditioning hood (20) is applied defining a spray chamber. In operation the spray coating tool (2) is mounted at a coating tool mounting end (21), and an output end (22) is positioned in proximity of the surface (3a) of the object (3) to be coated. The spray coating tool (2) is operated to spray atomised coating particles (10) which travel from the coating tool (2), through the spray chamber and the output end (22) to the surface (3a) of the object (3). A carrier gas is injected that in operation carries the atomised coating particles (10) to the surface (3a) of the object (3).

The method includes the introduction of foam into a shower cubicle, a vapor bath, or another sanitary facility. The foam is introduced at a temperature of −15° C. to 20° C., preferably of 0° C. to 18° C., particularly preferred of 5° C. to 15° C., from a foam generator into the shower cubicle, the vapor bath, or the other sanitary facility. The foam preferably has the temperature at an outlet of the foam generator. Apart from that, the disclosure also relates to a device for such a method according to the disclosure and a shower cubicle or a vapor bath having such a device.

A spraying apparatus includes a spraying apparatus main body, a liquid introduction portion, a gas-liquid spout portion, a gas introduction portion, a liquid inlet, a first gas inlet passage, a second gas inlet passage, and a spout. The first gas inlet passage is provided at at least one place of the annular gas introduction portion so as to communicate with the gas flow passage and the gas-liquid mixer, and allows a gas flow flowing through the gas flow passage to enter the gas-liquid mixer. The second gas inlet passage has a gas inlet having a predetermined area ratio, is provided on a downstream side of the first gas inlet passage of the gas introduction portion, and communicates with the gas flow passage and the gas-liquid mixer.

Disclosed are methods and apparatuses for processing a powder alloy to improve its microstructure. The methods for processing the powder alloy can include introducing the powder alloy into a powder vessel having an inert atmosphere, uniformly heat treating the powder alloy inside the powder vessel at its solutionizing temperature, and cooling the heat treated powder alloy at a rate of at least 5° C./s to form treated particles. The treated particles obtained from the methods and apparatuses disclosed herein can be used in any suitable manufacturing process, such as in cold gas dynamic spray.

In a film forming apparatus of the first embodiment, an infrared radiation apparatus and a thin film forming nozzle are separately disposed from each other so that heating treatment performed in a heating chamber and mist spray treatment performed in a film forming chamber are not affected by each other. The film forming apparatus of the first embodiment performs the heating treatment of infrared radiation of the infrared radiation apparatus in the heating chamber and then performs the mist spray treatment of the thin film forming nozzle in the film forming chamber.

A plasma thermal spray device includes a nozzle body (41) having a main flow passage (48) that has a plasma flame (37) formed therein in a direction toward a downstream side from an upstream end (41A) disposed on one side in an axis direction, and extending along an axis (Ax); a powder introduction port (43) that is provided in a portion of the nozzle body (41) located the downstream side from the upstream end (41A) and introduces thermal spray powder (36) from a radially outer side to the plasma flame (37); and a fluid introduction port (45) that is provided at a position closer to the downstream side than a formation position of the powder introduction port (43) in the nozzle body (41) and introduces a working fluid into the main flow passage (48) from the radially outer side of the nozzle body (41).

A gas atomization nozzle includes a through-hole formed along a center line; a nozzle portion configured of a Laval nozzle which is disposed around the center line and provided to be inclined at a predetermined angle toward the center line; and swirling motion imparting means for imparting a swirling flow around the center line to gas which is injected from the nozzle portion. The nozzle portion is formed in a ring shape which is continuous around the center line, and the swirling motion imparting means is configured as a fin provided in the nozzle portion to impart a swirling flow.

An embodiment is a nozzle for use in additive manufacturing and other applications. The nozzle defines a flow path and is configured to generate a supersonic flow of particles or fluid during operation. The embodiment provides at least one auxiliary flow path port that is configured to introduce an auxiliary flow into the nozzle relative to the flow path that protects an internal surface of the nozzle from wear and corrosion, thereby extending the life of the nozzle for extended periods of continuous operation. An embodiment centralizes particle location along its continuous flow path to achieve small footprint material deposition, thereby increasing 3D print resolution for building more intricate components.

A nozzle assembly for a cold spray deposition system includes a nozzle body with an axial bore. The axial bore defines a converging segment, a diverging segment downstream of the converging segment, and a throat fluidly connected between the converging and diverging segments of the axial bore. A particulate conduit is fixed within the axial bore and extends along the axial bore diverging segment for issuing solid particulate into the diverging segment of the axial bore.

PROBLEM: To provide a large device and a method which is advantageous for forming a large-area amorphous film. SOLUTION: A device of the invention sprays a flame including a particulate material with a spraying machine toward a substrate, melts the material with the flame, and cools the material and flame by cooling gas before they reach the substrate to form an amorphous film. The spraying machine has particulate material spraying ports and flame spraying ports such that the flame including the material has an oblong cross section. Inert gas spraying ports are successively placed on both sides across the ports of the material and flame. Mist spraying ports are successively placed on both sides across the ports for the material, flame and inert gas. A skirt is attached/detached depending on a combustion gas or a film width to restrain film width narrowing and increase of film thickness deviation.