Electrostatic powder coating method and apparatus

Details Electrostatic powder coating method and apparatus Electrostatic powder coating method and apparatus

1997-10-16

1999-06-29

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Processes

Including electrostatic charging

239695, 239707, 239105, B05B 128, B05B 503, B05B 516

Patent

active

059156210

ABSTRACT:
An electrostatic powder coating gun for dispersing aggregate powder onto substrates. The gun includes swirling air passage outlets to form a vortex of air inside the spray gun tip to reduce powder adhesion and assist in pulverizing the powder material. The coating gun employs a powder supply unit having a fluidized bed that includes temperature and humidity controls to adjust the temperature and humidity of the compressed air supplied to the spray gun and a mixer to agitate the powder in the container.

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