Yikes,
You're going to clean them for EACH ASSEMBLY?
Why not do what Bill Kenyon suggested and get the supplier to clean them
in bulk and them keep them clean until used?
Short chain alcohols are not very good at removing oils. I think you
should talk to people at companies like Zestron, Kyzen, 3M, etc. before
you go any further. Keep in mind what Brian Ellis has said too.
Bev
RIM
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of John Anselmo
Sent: Monday, June 29, 2009 1:17 PM
To: [log in to unmask]
Subject: Re: [TN] IPA o r Methanol in Ultrasonic Cleaner
Hi Bev,
To answer your questions:
Approximately half a dozen of each (screws/washers/ etc.
The qty is for each assembly and they only need to be cleaned before
final assembly, so it will be an ongoing process.
We are trying to clean any contaminants (oils) on the machined parts.
I haven't researched what finish will be on the screws yet.
John
-----Original Message-----
From: Bev Christian [mailto:[log in to unmask]]
Sent: Monday, June 29, 2009 9:34 AM
To: TechNet E-Mail Forum; John Anselmo
Subject: RE: [TN] IPA o r Methanol in Ultrasonic Cleaner
John,
Well part of this (safety considerations) will vary from jurisdiction to
jurisdiction.
Second,
How many screws and how often? Is this once off or will it be repeating?
Third
What is it you are tying to clean off?
Fourth
Are the screws painted, chromated, etc.?
Bev
RIM
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of John Anselmo
Sent: Monday, June 29, 2009 11:27 AM
To: [log in to unmask]
Subject: [TN] IPA o r Methanol in Ultrasonic Cleaner
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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