Coating processes – Interior of hollow article coating
Patent
1995-03-29
1996-04-30
Bell, Janyce
Coating processes
Interior of hollow article coating
427290, 427299, 427444, B05D 722, B05D 312
Patent
active
055123180
ABSTRACT:
A method for uniformly roughening a surface through use of an ultrahigh-pressure fluid fan jet has been shown and described. In a preferred embodiment, an ultrahigh-pressure fan jet is generated by pressurizing a volume of fluid, and forcing the pressurized fluid through a fan jet nozzle. The fan jet is positioned relative to the surface to be treated at a desired distance, and the fan jet is traversed across the surface at a selected rate to uniformly roughen the surface. In a preferred embodiment, the achieved surface roughness is quantified and compared to a desired surface finish. Operating parameters, such as horsepower and traverse rate, may then be adjusted accordingly to achieve the desired surface finish. By uniformly and completely roughening a surface through use of an ultrahigh-pressure fan jet prior to applying a coating to the roughened surface, adherence between the surface and the coating will be improved.
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Raghavan Chidambaram
Schmid Richard F.
Sisson Steven S.
Bell Janyce
Flow International Corporation
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