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February 2001

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Subject:
From:
"Campbell, William (wcampbel)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 16 Feb 2001 10:58:56 -0500
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You might try pressurizing your enclosure slightly with shop air (maybe 2
psi or so) and dunking under water-  the stream of bubbles out tell quite a
story.  Definitely not the best way, as the pressure applied here is
opposite real life in most situations, but good for troubleshooting, and you
won't get water inside.  Good luck, and think of a good story for the
dishpan hands.


 -----Original Message-----
From: Steffen, Don E [mailto:[log in to unmask]]
Sent: Thursday, February 15, 2001 8:34 PM
To: [log in to unmask]
Subject: [TN] Method of Leak Testing




Technetters

I am a Quality Engineer on a Safety Product that has a Leak Test
requirement. We are using a die cast aluminum housing that has a porosity
issue. I want to find out if there are any one in the TECH NET world that
might have some experience in leak detection methods. Water is out of the
picture. Because of the vertura effect, water can be sucked into a housing.
I am presently using water for troubleshooting purposes, but everything that
is applied to water is scrap. I have tried Helium gas but this is not always
reliable and repeatable. Is there anyone out there that can help me out in
this dilemma?



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