Electronics Forum | Sat Jul 08 00:06:16 EDT 2000 | Edmund
Can any pls enlighten me what is the purpose of using DI water during washing of PCBA. If the board is not wash using DI water , what will happe? What is the range of resitivity reading should be. Rdgs...
Electronics Forum | Thu Mar 21 09:23:35 EDT 2024 | alishakihn
Good morning! I'm sorry to hear about the anomalies you're experiencing with your inline wash. Dealing with foaming issues can be challenging, but I'll do my best to provide some suggestions to help you troubleshoot the problem. 1. Check the Water Q
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 | Fri Nov 21 15:34:16 EST 2008 | George
Does anyone know of an inexpensive way of holding small parts or boards in place in a wash basket to prevent them from moving during cleaning process.Keep in mind you want the top of the parts/boards to also get clean. Thanks
Electronics Forum | Fri Nov 21 16:43:30 EST 2008 | stepheniii
An expensive way is Stone Mountain Tool board cages. We tried to find a less expensive alternative but couldn't. These are the Cadillac of wash baskets.
Electronics Forum | Tue Jun 12 22:03:21 EDT 2007 | davef
The presence of agitation at an air / solution interface and a foaming agent causes foaming. Most water soluable fluxes contain surficants. Surficants are foaming agents. First, it's likely this foaming is caused by poor control of the temperature o
Electronics Forum | Tue Jun 12 18:48:49 EDT 2007 | mefloump
We seem to have an overwhelming amount of foam produced in the initial rinse portion of our wash (enough to cause it to overflow). We are using an Austin American Hydrojet Mach III Inline Cleaner. To my understanding the first rinse of the boards is
Electronics Forum | Thu Sep 21 17:50:43 EDT 2000 | Bill Boles
Does anyone have a quick reminder for a PCB with immersion gold surface finnish going through a reflow profile: Which of the following statements is more correct? A: In order to minimize gold in the intermetallics of the solder joint, the board temp
Electronics Forum | Tue May 27 11:59:14 EDT 2003 | blnorman
Is anyone aware of any reports, studies, articles on the subject of silicon contamination in SnPb solder joints. We are evaluating repair of conformally coated (silicone) boards. The fear is that we will never totally remove the silicone and once i
Electronics Forum | Fri Sep 14 13:07:06 EDT 2001 | bschreiber
Dave, The saponifier (or any additive) will supply free ions and contaminate the DI water. If no contamination is introduced (very difficult) or if fresh hot DI water is constantly added as in a steam age chamber, the DI water will begin to obtain
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