Electrostatic powder coating method

Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board

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Details

B05D 106

Patent

active

041104862

ABSTRACT:
Electrostatic powder-coating method, whereby a fan-spray of electrically charged powder particles is directed toward an object to be coated, said spray being formed from an incident stream consisting of a mixture of powder and carrier-gas, comprising means for re-homogenizing said incident stream, means for subsequently deflecting said stream in a direction substantially perpendicular to its incident direction, means for thereafter driving said stream against the internal walls of a duct designed to convert said stream into a fan-shaped spray, and means for electrically charging the powder particles of the said spray. The re-homogenizing means may, however, be omitted in certain cases.

REFERENCES:
patent: 3263127 (1966-07-01), Point et al.
patent: 3498541 (1970-03-01), Taylor et al.
patent: 3558052 (1971-01-01), Dunn

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