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September 2018

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Subject:
Re: PCBs in dry chambers
From:
Robert Kondner <[log in to unmask]>
Reply To:
[log in to unmask]
Date:
Tue, 11 Sep 2018 19:46:24 -0400
Content-Type:
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Wayne,

I found it! I logged (new password) in and played with some key words.

Here is what I recall seeing:

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Glidden, Kevin
Sent: Tuesday, April 09, 2013 2:01 PM
To: [log in to unmask]
Subject: Re: [TN] Bakeout and PCB Separators

Someone in Technet not long ago posted up an excellent little write up from
Gordon Davy about water vapor and drying.  I've attached it to Phil and Bob.

It contends vacuum ovens do nothing to increase drying rate.

Drying is a function of temperature and delta between concentration of water
in the middle versus at the surface.   

I presume, like any drying, the greater the surface area exposed the faster
the drying.  I would place the PCBs (as much as possible) directly on racks
or in card holders (on edge).

Thanks,
Bob k.


-----Original Message-----
From: TechNet <[log in to unmask]> On Behalf Of Wayne Showers
Sent: Tuesday, September 11, 2018 7:18 PM
To: [log in to unmask]
Subject: Re: [TN] PCBs in dry chambers

Try pasting this into your searchbar as it is.

http://listserv.ipc.org/scripts/wa.exe?A0=TechNet

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