A system for coating profiles comprises several treatment stations for treating the profiles, including at least one coating station for coating the profiles, the station being equipped with spray guns for dispensing the electrostatically charged powder coating. The system further comprises first detection means for detecting first data concerning the dimensions and shape of said profiles, first storage media for storing second data concerning said powder coating, which shall be used for coating said profiles, second storage media for storing third data concerning a set of sample profiles, and comparison means for comparing said first, second and third data so as to generate commands adapted to vary the operating parameters for said guns.

An electrostatic spray drying system comprising an electrostatic spray nozzle for directing electrically charged liquid into a drying chamber, a drying gas inlet from which drying gas is simultaneously directed, and a conical powder direction plenum for receiving drying gas and entrained dried powder for direction to a filter containing powder separation plenum via a connecting conduit. The powder direction plenum and connecting conduit each have a surrounding water jacket heat exchanger through which cooling water is directed for cooling the drying gas and powder below damaging temperatures prior to entry into the powder separation plenum. The powder separation plenum has a return line for redirecting separated drying gas to the drying chamber through a condenser, blower, and heater for reuse in the system, with condensed water being selectively redirected to the inlet of the powder direction plenum heat exchanger and/or to the cooling water supply.

Apparatus for coating a heated pipe section with a fusible powder includes a booth enclosing a powder application volume, at least one powder dispensing device for dispensing powder supplied to the device in the direction of the heated pipe section as the heated pipe section passes through the volume, and a filter mechanism coupled to the booth for extracting from the booth a stream of air entraining fusible powder that does not stick to the heated pipe section and extracting the fusible powder that does not stick to the heated pipe section from the volume. The apparatus further includes an opening between the volume and the filter mechanism. The opening permits the mixing of cooler air into the stream of air entraining fusible powder that does not stick to the heated pipe section before the stream of air entraining fusible powder that does not stick to the heated pipe section reaches the filter mechanism.

An aerosol including an active material powder, a binder, and a gas is prepared. An electric field is formed between a substrate and a porous electrode. The aerosol is electrically charged. The aerosol after the electrically charging is introduced into the electric field. The aerosol passes through the porous electrode and thereby the aerosol is introduced into the electric field. At the time of the aerosol passing through the porous electrode, the aerosol comes into contact with the porous electrode and thereby the aerosol is electrically charged. In the electric field, the aerosol after the electrically charging flies toward the substrate due to electrostatic force. The aerosol adheres to a surface of the substrate and thereby an active material layer is formed.

A method of powder coating a substrate includes receiving a powder coating material into a feed input, using the feed input, melting the powder coating material into a homogeneous fluid of powder coating material, receiving the homogeneous fluid of powder coating material into a filament extension atomizer positioned in-line with the feed input, atomizing, with the filament extension atomizer, the received homogeneous fluid of powder coating material into multiple droplets of powder coating material, cooling the droplets of powder coating material to a processing temperature that prevents the droplets from agglomerating, and directing the cooled droplets through a deposition passage positioned in-line with the filament extension atomizer, the deposition passage configured to direct at least a portion of the cooled droplets towards a substrate.

Disclosed are a coating apparatus and a coating method. The coating apparatus includes a chamber, a support located in an interior space of the chamber and configured to support a substrate which is to be coated, an ejection nozzle configured to eject a coating material toward the support, and an electric field forming unit configured to form an electric field in a movement path of the coating material to provide kinetic energy for the coating material.

An electrostatic powder coating device comprises a shaped body extending along a longitudinal axis and housing an internal chamber configured to contain a fluid bed of powder coating. A closing plate of the internal chamber comprises a first intake duct of a powder coating into the internal chamber and a second intake duct of pressurized air into the internal chamber. The shaped body comprises first and second elements extending along the longitudinal axis, the first element comprising a first surface defining a lower portion of the internal chamber, the second element comprising a second surface defining an upper portion of the internal chamber connected to the first element. The first and second elements each comprise respective peripheral edges facing each other to form slits putting the internal chamber in communication with the outside of the shaped body, a plurality of electrodes arranged at the slits and connected to voltage generators.

There is provided an electrostatic film formation device including a powder feeder feeding powder, a substrate on which a powder film is to be formed from the powder, and a DC power supply applying voltage to the powder feeder and the substrate. The DC power supply applies the voltage to draw the powder from the powder feeder to the substrate with electrostatic force. The electrostatic film formation device further includes a masking member disposed between the powder feeder and the substrate. The masking member is formed with a passing port allowing the powder to pass from the powder feeder to the substrate. The masking member is disposed in the state where the masking member is not in contact with the powder film to be formed.

An additive manufacturing system includes an additive manufacturing tool configured to supply a plurality of droplets to a part, a temperature control device configured to control a temperature of the part, and a controller configured to control the composition, formation, and application of each droplet to the plurality of droplets to the part independent from control of the temperature of the part via the temperature control device. The plurality of droplets is configured to build up the part. Each droplet of the plurality of droplets includes at least one metallic anchoring material.

A method of powder coating a substrate includes receiving a powder coating material into a feed input, using the feed input, melting the powder coating material into a homogeneous fluid of powder coating material, receiving the homogeneous fluid of powder coating material into a filament extension atomizer positioned in-line with the feed input, atomizing, with the filament extension atomizer, the received homogeneous fluid of powder coating material into multiple droplets of powder coating material, cooling the droplets of powder coating material to a processing temperature that prevents the droplets from agglomerating, and directing the cooled droplets through a deposition passage positioned in-line with the filament extension atomizer, the deposition passage configured to direct at least a portion of the cooled droplets towards a substrate.