Tribostatic fluidised bed powder coating process

Details Tribostatic fluidised bed powder coating process Tribostatic fluidised bed powder coating process

2008-01-29

2008-01-29

Parker, Fred J. (Department: 1762)

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

C427S460000, C427S461000

Reexamination Certificate

active

07323226

ABSTRACT:
A process for forming a coating on a substrate, including the steps of effecting tribostatic charging of a body of powder by establishing a fluidised-bed of the body of powder in a fluidising chamber at least a part of which is conductive, applying a voltage to the conductive part of the fluidising chamber, immersing a substrate which is electrically non-conductive or poorly conductive, either electrically isolated or earthed, wholly or partly in the fluidised bed, withdrawing the substrate from the fluidised-bed and forming adherent particles of the powder into a continuous coating over at least part of the substrate.

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