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Date: | Mon, 29 Jun 2009 12:16:51 -0400 |
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If you already have a solvent cleaning unit fitted with ultrasonics, why
not fabricate a wire cage to contain the parts and just run them thru with
PWAs that are being defluxed? The typical PWA cleaning cycle time should be
enough to get the parts cleaned, unless you are trying to remove chlorinated
sulphonated cutting/stamping oils/greases. In that case you'd probably
need to go to a separate U/S unit using trichloroethylene solvent to get the
job done in a short time frame.
You might try renting a unit from one of the U/S equipment makers or
retrofitters if this is an ongoing project. If just a once or twice process,
perhaps one of the above would run it for you in their demo lab.
Now the big question-- why aren't the parts makers cleaning the parts
themselves??
Bill Kenyon
Global Centre Consulting
3336 Birmingham Drive
Fort Collins, CO 80526
Tel: 970.207.9586 Cell: 970.980.6373
In a message dated 6/29/2009 9:31:21 A.M. Mountain Daylight Time,
[log in to unmask] writes:
Technet,
We are being asked by one of our customers to clean some parts (screws,
washers, standoffs, feedthrus) in an ultrasonic cleaner with either Methanol
or IPA (spectroscopic grade).
The time in the ultrasonics could be up to 1 hour.
Does anyone else have experience and recommendations for doing this?
My main concern is safety. What type of room or enclosure do we need for
this?
Thanks,
John Anselmo
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