Faraday Cage Test Apparatus for Paint Coatings
Publication Date: 2015-Nov-05
The IP.com Prior Art Database
Page 01 of 6
Title: Faraday Cage Test Apparatus for Paint Coatings
Brief Description of the Drawings:
Figure 1 is a perspective view of a fixture with an arrangement of test panels used for testing and evaluating properties of applied paint coatings.
Figure 2 is a side view of the fixture of Figure 1, shown without test panels. Figures 3 is a partial front view of the fixture of Figure 2. Figures 4 is a partial top view of the fixture of Figure 3. Figure 5 is a side view of the fixture of Figure 1, shown with top test panels and middle test
panels assembled with the fixture.
Figures 6 is a partial front view of the fixture of Figure 5. Figures 7 is a partial top view of the fixture of Figure 6. Figure 8 is a side view of the fixture of Figure 1, shown with top test panels, middle test panels
and bottom test panels assembled with the fixture.
Figures 9 is a partial front view of the fixture of Figure 8. Figures 10 is a partial top view of the fixture of Figure 9.
As shown in the attached illustrations and described below, a method of assembling substrates (test panels) in an apparatus, or fixture, used for testing and evaluating the Faraday Cage properties of spray applied paint coatings under laboratory conditions that allows for the consistent evaluation of test samples (paint material formulations) without the process of bending and un‐bending the substrates, is disclosed.
Summary of Test Method:
Steel test panels are assembled in a fixture to create a metal box with an open side towards the paint spray. The box creates a cavity in which the paint will penetrate. The Faraday Cage properties of an electrostatically applied paint coating will be affected by a metallic cavity/box and the electrostatically charged paint resin will be attracted to the edges of the box that provide the most suitable ground. The corners and recess areas of the box will as a result obtain less paint coverage due to the Faraday Cage Effect.
Procedure to assemble the Faraday Cage Fixture of this disclosure: As shown in Figures 2‐4:
1. Using the perforated square bar (tube) as the main section, attach an eye bolt on each end of the square bar, on the same surface.
2. Bolt six of the "L‐shaped" braces across the square bar. Orientate them as shown in Figure 2, making one portion of the "L" brace extend away from the eye bolt. Space them so that two "L" braces are used for each length of test panel.
3. Each "L" brace will receive two magnets, one at each end of the "L" b...