Electronics Forum | Sat May 27 02:52:20 EDT 2006 | TimS
Gentlemen I have managed to pull myself together after banging my head. I am not sure the flux volume is the total solution here. All spray processes deposit flux in a similar manner, that is to say the vast majority of material sprayed onto the PCB
Electronics Forum | Thu Mar 25 11:09:29 EST 2004 | paul_bmc
I ran into the same problem. What I had is a customer that required us to use a No Clean because of the Low flux activity then they want it cleaned. Well to clean the No clean your going to use such a high percentage of cleaner in your sapinifer th
Electronics Forum | Wed Apr 27 10:52:52 EDT 2005 | saragorcos
Have you examined what type of residue is present? It is possible that what you are seeing is benign, though flux that is not fully activated often leaves harmful residue species such as chloride or weak organic acids. If you don't want to change p
Electronics Forum | Thu May 31 12:21:14 EDT 2007 | patrickbruneel
Let me give you some good advice You take already plenty of risk going lead-free, DO NOT use halogen containing fluxes in a lead-free no-clean process. Halogens left on the board will convert tin, silver and exposed copper into metal salts over tim
Electronics Forum | Tue Mar 24 17:14:44 EDT 2009 | bas251
In my experience, before my current employment, I have personally seen damage from the water soluable fluxes left under a BGA. In consideration, I have not seen it from an assembly process where the boards are cleaned thoughly, but I have seen it dur
Electronics Forum | Tue Nov 10 09:27:04 EST 1998 | Chrys
| | | I need to find out the benefits about having a spray fluxer.Right now we are using a foam fluxer on our electrovert wavesolder. We are thinking about investing in a spray fluxer and I want to know if anyone has used a spray fluxer and if any pr
Electronics Forum | Wed Mar 31 21:08:34 EST 2004 | Ed
Hey guys. I've been manually dunking circuit boards for 8 years now. I too have the excess residue issue to contend with. I'm using a low solids - no clean flux from Kester (959). I have used solvents, thinners, windex and a multititude of cleane
Electronics Forum | Thu Apr 14 13:10:49 EDT 2005 | Shean Dalton
Hi John, A primary consideration is the type of flux you are using. If it's water soluble (organic acid) then cleaning is highly recommended. Any other flux that fails the copper mirror test, we'd strongly recommend cleaning. Passing the copper m
Electronics Forum | Fri Dec 01 17:03:57 EST 2000 | Dave F
Curious, very curious ... Residues � Where are these residues? [solder & laminate / mask, solder only, laminate / mask only] What is the result of your analysis to the residues? How do you know it�s a flux residue, rather than a chemical by product
Electronics Forum | Thu Dec 23 22:31:47 EST 1999 | Vincent Chen
Hi!Charlie, 1.Are you retrofitting your spray fluxer in your wave soldering machine? If you are, please ensure that you have a air knife just before the preheater!Fluxe fumes tends to accumulate and that could be dangerous if your air exhaust is not
