Hello,
I am constructing a vertical spray etching machine for processing
single panels. A series of nozzles will periodically oscillate
back and forth across the panel in a vertical motion. The nozzles
will be the fan type as opposed to cones. I am in need of a
little help choosing the appropriate nozzle. I was hoping someone
here might have some knowledge on typical nozzle configurations
used in spray etching equipment.
The nozzles (NF series by BETE) are available in fan angles of
15,30,50,65,80,90,110 and 120 degrees and I don't have the
experience to choose the right one.

My initial calculations say to use 65° fan nozzles with a
spraying distance of about 120 mm from the panel, and then
experimentally determine the needed jet overlapping for a uniform
etch.

regards,
Adam Seychell,
Australia.

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