Chemistry: electrical and wave energy – Processes and products
Patent
1988-11-02
1991-02-26
Valentine, Donald R.
Chemistry: electrical and wave energy
Processes and products
204 26, 2041292, 20412955, 2041297, 219 6917, 138 44, 4272481, 427304, 156626, 156644, B23H 300, B23H 914, C25D 502
Patent
active
049959492
ABSTRACT:
A method of processing an orifice in a structure to attain a precise predetermined flow resistance through said orifice. Undersized orifices are machined by either electrochemical, chemical or electric discharge machining, while oversized orifices are electroplated, electroless plated or vapor deposition coated, such that the processing fluid, i.e. the electrolyte, corrosive fluid, dielectric or carrier gas as used in the machining, plating or coating process is passed through said orifice during said processing at a predetermined fixed pressure while measuring the dynamic flow resistance of said processing fluid through said orifice until said dynamic flow resistance is equal to that desired.
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Extrude Hone Corporation
Valentine Donald R.
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