Electronics Forum | Sun Dec 09 22:54:20 EST 2001 | dburr
It sound you have already discovered to root cause, flux entrapment in the via holes. Short of changing the desing, here are sone suggestions. The main thing is you have to dry out the via holes of the wet flux. Some things to try are: slow down t
Electronics Forum | Wed Apr 24 19:12:19 EDT 2002 | russ
I may be stupid but what exactly do you mean by "foil" on both sides? Are you having trouble with top flow? bridging? Are you using water soluble or noclean? Are you also waving SMT components? Anyway, normally the solder temp should be 460 - 500 F(
Electronics Forum | Tue Jun 06 12:42:24 EDT 2006 | samir
Wave flux, although I've seen it used successfully in my past life, is not such a good idea to use as a rework/touchup flux. Wave flux needs to be heated to certain activation temps which won't be repeatedly achieved with a manual soldering process.
Electronics Forum | Fri Jun 09 15:46:34 EDT 2006 | samir
I say: �Wave flux needs to be heated to certain activation temps which won't be repeatedly achieved with a manual soldering process. Plus, you won't burn off any residual activator as you would if the board were immersed in a solder bath.� Muse say
Electronics Forum | Fri Aug 04 16:11:59 EDT 2006 | chrisgriffin
Hell Doc, This is an easy one. But first I must disagree with the wave master. I have done extensive refurb. jobs on Soltec and Vectra. The only thing Soltec has on Vectra is a better solder pot, and even that is close. Vectra software is many, m
Electronics Forum | Tue Sep 04 15:08:51 EDT 2007 | floydf
We have a job that has through hole components on the top, and one 44 pin j leaded PLCC on the bottom. Presently we put the through hole parts in, run it throught the wave, dispense paste on the PLCC pads, and then apply hot air. Someone suggested we
Electronics Forum | Mon Apr 29 13:56:19 EDT 2013 | williamaxler
We have a Versaflow 40/50 and ours is setup like this. We have out nozzle test position set so that in the Z axis you are 3.8mm away from the pin. Used feeler gauge Then you can set your gradient per nozzle. Start with a number then do a wave offs
Electronics Forum | Tue Mar 10 04:36:41 EDT 2015 | vb7007
Hi I have been struggling with boards for high quality picky customer. I am getting flux waves (like splashed - too hard to clean) after wave, where as we are still using Kester 979 (No clean flux, but as we are getting visible marks which looks si
Electronics Forum | Tue Mar 10 04:37:32 EDT 2015 | vb7007
Hi I have been struggling with boards for high quality picky customer. I am getting flux waves (like splashed - too hard to clean) after wave, where as we are still using Kester 979 (No clean flux, but as we are getting visible marks which looks si
Electronics Forum | Tue Dec 12 13:45:23 EST 2000 | justin m
Dross removal is dependent upon the "activity" in your solder pot and the usage of a inert or an "air" atmosphere. The more moving parts that agitate the solder and expose it to air, the more dross. Basics first and then the answers will make sense
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