The present application discloses an automatic powder cleaning process and device for wheel bolt holes. The device comprises a vacuum pump, a steady pressure tank, a powder cleaning robot, a powder cleaning gun, a control system and accessories. According to the process and the device, shielded protection is canceled, and powder at the mounting part of a wheel bolt hole is automatically cleaned, so that the process and the device are suitable for various wheel products, and the labor and the labor cost are reduced; the problems that a lot of different types of protective plugs needed for wheels are inconvenient to customize and store and high in cost are avoided.

A powder center for supplying a powder coating facility with coating powder includes a powder reservoir container and a powder conveyor for transporting powder out of the powder reservoir container in the direction of the powder coating facility. Moreover, the powder center includes a container lid that covers the powder reservoir container while powder is being conveyed and can be removed at least partly for the purpose of cleaning the powder reservoir container. Moreover, a cleaning unit for cleaning the powder reservoir container that can be moved from a parking position next to the powder reservoir container into a cleaning position inside the powder reservoir container by a manipulator is provided. Moreover, the powder center includes a controller by which the powder conveyor, the cleaning unit, and the manipulator can be controlled.

A powder center for supplying a powder coating facility with coating powder includes a powder reservoir container and a powder conveyor for transporting powder out of the powder reservoir container in the direction of the powder coating facility. Moreover, the powder center includes a container lid that covers the powder reservoir container while powder is being conveyed and can be removed at least partly for the purpose of cleaning the powder reservoir container. Moreover, a cleaning unit for cleaning the powder reservoir container that can be moved from a parking position next to the powder reservoir container into a cleaning position inside the powder reservoir container by a manipulator is provided. Moreover, the powder center includes a controller by which the powder conveyor, the cleaning unit, and the manipulator can be controlled.

A conveying device is provided for the conveying of coating powder and includes a powder reservoir container that includes, on the bottom, a powder outlet channel. The powder outlet channel is connected to a first powder conveyor for conveying powder out of the powder reservoir container back to a powder storage container. Moreover, a second powder conveyor is provided for conveying powder out of the powder reservoir container to a powder applicator.

A conveying device is provided for the conveying of coating powder and includes a powder reservoir container that includes, on the bottom, a powder outlet channel. The powder outlet channel is connected to a first powder conveyor for conveying powder out of the powder reservoir container back to a powder storage container. Moreover, a second powder conveyor is provided for conveying powder out of the powder reservoir container to a powder applicator.

The disclosure relates to a coating apparatus for applying a monolayer layer of particles to a receiving surface. The apparatus comprises a pressurized air source, an application chamber partially bounded by the receiving surface into which an air stream is delivered by the air source, an air return path for returning air from the application chamber to an intake of the air source to form an air circulation loop, and a dosing device for introducing particles to be coated onto the receiving surface into the air circulation loop, a particle deflector being positioned in the path of the air stream to break up agglomerated particles carried by the air stream prior to coating the receiving surface with the particles. A method of applying a layer of particles is also provided, as well as printing systems benefiting from the present coating apparatus.

The disclosure relates to a coating apparatus for applying a monolayer layer of particles to a receiving surface. The apparatus comprises a pressurized air source, an application chamber partially bounded by the receiving surface into which an air stream is delivered by the air source, an air return path for returning air from the application chamber to an intake of the air source to form an air circulation loop, and a dosing device for introducing particles to be coated onto the receiving surface into the air circulation loop, a particle deflector being positioned in the path of the air stream to break up agglomerated particles carried by the air stream prior to coating the receiving surface with the particles. A method of applying a layer of particles is also provided, as well as printing systems benefiting from the present coating apparatus.

A substrate processing apparatus includes a first supply pipe supplying a first chemical liquid to a substrate, a second supply pipe, spaced apart from the first supply pipe, and supplying a second chemical liquid to the substrate, and a recovery pipe connected to the first supply pipe to collect the first chemical liquid, and disposed between the first supply pipe and the second supply pipe.

A substrate processing apparatus includes a first supply pipe supplying a first chemical liquid to a substrate, a second supply pipe, spaced apart from the first supply pipe, and supplying a second chemical liquid to the substrate, and a recovery pipe connected to the first supply pipe to collect the first chemical liquid, and disposed between the first supply pipe and the second supply pipe.

The invention relates to a device and a method for the metallic coating of a work piece with a mobile coating lance (20), by means of which a metal plasma jet can be generated to create the coating consisting of metal particles. According to the invention, an extraction hood (30) is provided, which at least encloses an axial section of the coating lance (20) in a ring-shaped manner, and the extraction hood (30) has a ring-shaped holding unit (50), which is configured to take up the metal particles.