Electronics Forum | Tue Sep 07 12:57:00 EDT 2010 | jrr3434
Thanks for the info mike. How well do these batch cleaners work with densely populated through hole boards that were solder with no clean flux? Is there a problem with water getting trapped under large capacitors? I'm using kester 959t for flux on b
Electronics Forum | Mon Sep 09 13:46:34 EDT 2002 | dragonslayr
Your lack of obvious solder balls indicates you have a decent process. However, there are still small solder balls that are free and floating on the surface of the boards prior to wash. That same solder ball is washed off and ends up in the wash solu
Electronics Forum | Mon Sep 09 19:17:56 EDT 2002 | dragonslayr
steve- once again I mention that the lead that is actually in the water is in solution i.e. the lead is in a molecular form that has attached to a H2O molecule. To have a minimum of lead that is below the regulated ppm, there cannot be any chunks,
Electronics Forum | Wed Feb 01 11:47:07 EST 2006 | Mike
James, If you have a true MSD issue, then baking them AFTER your reflow is not going to fix the issue. I would have to agree with GS and look at trapped cleaner media (if your not No-clean) under the components, or inside connectors. If your runnin
Electronics Forum | Thu May 04 11:37:25 EDT 2023 | proceng1
Thank you. I do feel that the document is very lacking in detail. It mostly says "yes, it needs cleaned. Make sure the cleaning process doesn't screw it up". The majority of boards that get wiped are already populated on the other side. So that lim
Electronics Forum | Wed Sep 19 11:32:17 EDT 2001 | Mike Konrad
Hi Kevin, Sorry for the delay in responding to your question. I have been trapped in Australia (not a bad place to be trapped I may add). The scale in your cleaner is not usually caused by the chemical used in the wash cycle (although Armakleen ha
Electronics Forum | Fri May 15 07:09:27 EDT 1998 | Brian K Heston
List, Is there any special disposal protocol needed when the filters on the PC board washer becomes clogged? How often do these filters become clogged? These filters would trap lead and such so how much does it cost to get rid of the filters? Bria
Electronics Forum | Wed Dec 03 07:30:57 EST 2008 | realchunks
Hi System Steve, What is a solvent cleaner over water wash? Solvent first and then rinse with water? And why do they feel the need to bake the boards? Do they think trapped moisture will cause board damage?
Electronics Forum | Thu Jun 11 10:02:36 EDT 2009 | dyoungquist
Our cleaning process involves the assemblies being completely immersed in the water bath of the ultrasonic cleaner. The assembly has a QFP44 on it. Customer stated that when these assemblies have been cleaned with water in the past (at a different
Electronics Forum | Wed Aug 14 10:11:01 EDT 2002 | davef
For relow ovens the general approaches are: * Clean the vent pipe. * Replace [a section of ] the vent pipe. * Clean the flux trap on newer ovens. * Do nothing and wonder where that brown slime that is dripping on the boards is coming from. For wave
