Coating arrangement and process for preventing deposits of a coa

Details Coating arrangement and process for preventing deposits of a coa Coating arrangement and process for preventing deposits of a coa

1986-02-21

1988-06-07

Bell, Janyce A.

Coating processes

Solid particles or fibers applied

427185, 427421, 118302, 118312, 118326, 118DIG7, B05D 112, B05D 102, B05B 1202

Patent

active

047495936

ABSTRACT:
To prevent a formation of aerodynamic dead zones in a coating arrangement for powder coating, such as, for example, weld seams, a surface of a supporting member is provided with a constantly increasing radius of curvature between an outlet orifice for a spray jet and an exhaust orifice, starting with the former. A feed conduit is fashioned so that a laminar flow of the coating medium does not experience a change in an arithmetic sign of its path of curvature in the orifice zone and along a subsequent surface. For a constant acceleration of the spray jet, a constant reduction of the flow cross section is provided for the spraying medium between the outlet and the exhaust conduit.

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