Electronics Forum | Thu Jun 28 16:02:05 EDT 2012 | allwave
We had a similar problem with foam in our inline cleaner (TD). The problem were the solder paste flux residues. Boards went straight from SMT to Wave process and then washed. Anyway we changed the solder paste and problem solved. Are you using saponi
Electronics Forum | Tue Nov 14 18:55:16 EST 2023 | kghadiya
I relate to your problem. We face this issue sometimes. It's mostly flux from SMT, TH process or rework boards. To avoid foam in our Washer, we soak the boards in hot water for 10-15 min before running it through the washer. Or you can spray the boar
Electronics Forum | Mon Feb 17 22:05:24 EST 2014 | kahrpr
I am not aware of any correlation that temperature and pressure is a good indicator of board cleanliness. You can drop a thermometer into the tank to verify the temperature. Water cleanness/Ph are more important. If you are truly worried about board
Electronics Forum | Mon Dec 18 19:31:33 EST 2023 | kojotssss
Surely somewhere the cleaning or rinsing liquid gets to the other chamber. It is possible that the chemical migrates to the flush or flushes the chemical into the chamber. I have had a similar situation, high foam, injection vertical spray offline st
Electronics Forum | Tue Aug 27 08:13:29 EDT 2002 | mk
Our company uses a conveyorised aqueous cleaner to wash printed circuits after water soluble solder paste is reflowed. The system is closed loop with carbon and resin filters. The water eventually will get dirty. Can it be dumped? Treated? How do y
Electronics Forum | Wed Aug 02 17:39:54 EDT 2006 | russ
Well i guess you would not have to dry the boards but let me ask this, Are you hand cleaning water soluble flux in a sink? Never seen a cleaner without a dryer. Anyway temp and time for drying is easy to figure out. When boards are dry you have i
Electronics Forum | Mon Jul 02 18:40:33 EDT 2012 | joeherz
We used to have a Nuclean 324 that was running closed loop with a DI water recirc system. We also had problems with foaming that was solved with a relatively simple fix. We bypassed the final rinse solenoid so that it was always running. This allo
Electronics Forum | Tue Nov 14 14:08:44 EST 2023 | hhudson
Good Morning, I'm a relatively new engineer, and i've been experiencing a lot of anomalies when it comes to our inline wash. We have an Austin American Hydrojet, and no matter how many times i clean the tank, it still foams like crazy! its been happe
Electronics Forum | Tue Dec 29 15:55:26 EST 1998 | James Lalicker
We use a inline water wash system to clean our PWA's. How low should i be able to let my DI water resistivity get before replacing the DI tanks. Is there a standard i can get on this subject. Thanks JL
Electronics Forum | Mon Sep 27 08:52:11 EDT 1999 | Brian
| i had a problem here, during the wave soldering process, we apply a water soluble mask on the gold finger to protect it from contamination. But after washing, there is still some mask left on the gold finger. | Can anyone pls advise is there any pa