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April 1997

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From:
"ddhillma" <[log in to unmask]>
Date:
Wed, 02 Apr 97 11:41:53 cst
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     Hi Ryan -
     
     One idea that I have seen work is to install a set of copper tubes 
     that you run chilled water through and using a standard fan to 
     transfer the cool air to the assembly. This idea assumes you have 
     chilled water present, you have room to incorporate the system in the 
     wave solder machine, and don't find an off-the-self system that meets 
     your liking. The main danger to avoid is blowing air so hard that you 
     disturb the solder joints while they are still molten. Good Luck.
     
     
     Dave Hillman
     Rockwell Collins
     [log in to unmask]


______________________________ Reply Separator _________________________________
Subject: Wave Solder Fan
Author:  [log in to unmask] at ccmgw1
Date:    4/2/97 10:22 AM


Does anyone have any information on what type of fan (ionizer) works 
best at the end of the wave solder machine?
     
We are having some problem with cold solder joints on some of the 
products with large ground planes.  They are taking too long to cool.  I 
was going to place an ionizer that will blow onto the bottom of the 
board as it leaves the wave solder machine.  We are running an 
Electrovert 2000/s.
     
Also does anyone have any information or experience with how far away 
from the wave itself the fan should be placed?
     
Any help is appreciated.
------------------------------------------------------------------------ 
-------
Ryan Chase - Manufacturing Engineer
Harris Canada Inc.
Wireless Access Division
(403) 295-5036
FAX (403) 295-8862
     
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