Subject: | |
From: | |
Reply To: | |
Date: | Tue, 9 Apr 2013 17:00:33 +0000 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Robert,
How about placing them in a vacuum chamber. That would release all the moisture and definitely if you could add a little heat. I would envision separating the boards with a mesh and spacer to allow the moisture to fully escape. Placing a paper towel between layers might not let all the moisture escape.
But then this is just my opinion.
Phil Nutting
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Robert Kondner
Sent: Tuesday, April 09, 2013 12:54 PM
To: [log in to unmask]
Subject: [TN] Pakeout and PCB Separators
Hi,
Does anyone know if separators of some type between PCBs can reduce bake out time?
If I have a stack of PCBs, and I place something like paper towels between PCBs, can the bake out time be reduced? I would imagine the diffusion rates of moisture in the paper towel material would be much higher than in solid PCB laminate. But, that is just a guess. Could be perfect hog wash.
My problem is not with PCBs but with 30 mil sheets of plastic that feed a thermoforming process. I am using PETG but I still see small bubbles in the material after forming. I tried a short bake out, and it helps, but I cannot heat very high as the 30 mil plastic sheets will easily deform. I need to lay them flat, heat gently, and still try to removed moisture. I was wondering what the best way to separate sheets and allow drying might be.
Any Ideas?
Thanks,
Bob K.
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________
______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
|
|
|