A component such as a door is coated by immersion in a fluidized bed. The component is supported by a hook assembly that moves the component within the fluidized bed during coating. The movement is cyclical and inhibits bridging of the coating material when applied to intricate articles.

A device for coating a metal strip substrate includes a guiding apparatus for guiding the strip substrate along a movement path. A first coating apparatus coats a first main side of the strip substrate with an electrostatically charged coating powder which is in a fluidized state. The first coating apparatus is arranged under a first path section of the movement path. A second coating apparatus coats a second main side of the strip substrate with an electrostatically charged coating powder which is in a fluidized state. A redirecting unit redirects the strip substrate between the first and the second coating apparatus in such a way that the strip substrate in a second path section travels oppositely to the strip substrate in the first path section. The second coating apparatus is arranged at least partly geodetically under the second path section.

A reactor for coating particles includes a stationary vacuum chamber to hold a bed of particles to be coated, a chemical delivery system, and a paddle assembly. The paddle assembly includes a rotatable drive shaft and a first plurality of paddles and a second plurality of paddles that extend radially from the drive shaft. The spacing, cross-sections, and oblique angles of the paddles are such that orbiting of the paddles causes the first plurality of paddles and the second plurality of paddles to displace substantially equal volumes in opposite directions in the lower portion of the stationary vacuum chamber.

A reactor for coating particles includes a stationary vacuum chamber to hold a bed of particles to be coated, a chemical delivery system, and a paddle assembly. The paddle assembly includes a rotatable drive shaft and a first plurality of paddles and a second plurality of paddles that extend radially from the drive shaft. The spacing, cross-sections, and oblique angles of the paddles are such that orbiting of the paddles causes the first plurality of paddles and the second plurality of paddles to displace substantially equal volumes in opposite directions in the lower portion of the stationary vacuum chamber.

A method for controlling fiber cross-alignment in a nanofiber membrane, comprising: providing a multiple segment collector in an electrospinning device including a first and second segment electrically isolated from an intermediate segment positioned between the first and second segment, collectively presenting a cylindrical structure, rotating the cylindrical structure around a longitudinal axis proximate to an electrically charged fiber emitter; electrically grounding or charging edge conductors circumferentially resident on the first and second segment, maintaining intermediate collector electrically neutral; dispensing electrospun fiber toward the collector, the fiber attaching to edge conductors and spanning the separation space between edge conductors; attracting electrospun fiber attached to the edge conductors to the surface of the cylindrical structure, forming a first fiber layer; increasing or decreasing rotation speed of the cylindrical structure to alter the angular cross-alignment relationship between aligned nanofibers in adjacent layers, the rotation speed being altered to achieve a target relational angle.

To provide a powder resin coating method and powder resin coating device which can maintain a powder surface as flat irrespective of changes in the average particle size of powder resin. A powder resin coating device (1) includes a powder fluidizing bed (2) storing powder resin, a vibration mechanism (5) connected to the powder fluidizing bed (2), and a control device (8) controlling the frequency of the vibration mechanism (5). The control device (8) includes an average particle size estimation unit (82) that estimates the average particle size of powder resin stored within the powder fluidizing bed (2); an optimum frequency determination unit (83) that determines an optimum frequency for causing the powder surface to flatten based on the average particle size estimated by the average particle size estimation unit (82); and a frequency control unit (84) causing the vibration mechanism (5) to vibrate at the determined optimum frequency.

To provide a powder resin coating method and powder resin coating device which can maintain a powder surface as flat irrespective of changes in the average particle size of powder resin. A powder resin coating device (1) includes a powder fluidizing bed (2) storing powder resin, a vibration mechanism (5) connected to the powder fluidizing bed (2), and a control device (8) controlling the frequency of the vibration mechanism (5). The control device (8) includes an average particle size estimation unit (82) that estimates the average particle size of powder resin stored within the powder fluidizing bed (2); an optimum frequency determination unit (83) that determines an optimum frequency for causing the powder surface to flatten based on the average particle size estimated by the average particle size estimation unit (82); and a frequency control unit (84) causing the vibration mechanism (5) to vibrate at the determined optimum frequency.

First to eighth laser measurement sections (30a) to (30h) of a laser measurement unit (30) measures a height of a surface of powder resins (15) in a coil insertion range CA for every angular degree in a circumferential direction of a stator core (2). A control unit (18) computes the number of points where the height of the surface is lower than a predetermined height among measurement results at multiple points measured by the first to eighth laser measurement sections (30a) to (30h), where the number of points is defined as an index value indicative of a dispersion of the measurement results. When it has been determined that the index value exceeds a first predetermined value, a notification is issued by outputting from a speaker (32) a sound indicative of the fact that the index value that has been computed exceeds the first predetermined value.

A system for buoyant particle processing includes: a reaction vessel, a stirring mechanism, a set of one or more pumps, and a filter. The system can additionally or alternatively include a set of pathways and/or any other suitable component(s). A method for buoyant particle processing includes: stirring the contents of a reaction vessel; washing a set of buoyant particles; and filtering the contents of the reaction vessel. Additionally or alternatively, the method can include any or all of: preprocessing the set of buoyant particles; adding a set of inputs to the reaction vessel; washing the set of buoyant particles; repeating one or more; and/or any other suitable process(es).

Provided is a powder coating device. The powder coating device performs powder coating by inserting peeled parts at a lower end of a stator into a powder flow tank filled with a powder resin and includes: a surface height measurement part measuring a surface height of the powder resin; a peel height measurement part measuring a height of upper ends of the peeled parts; a swing part swinging the powder resin; an air supply part supplying air toward the powder flow tank via a porous body provided below an open bottom surface of the powder flow tank, and flowing the powder resin; and an adjustment part adjusting at least one of an air flow rate, a swing amount of the powder flow tank, an entry posture and an entry amount of the stator according to measurement results of the surface height measurement part and the peel height measurement part.