Electronics Forum: water and wash (Page 1 of 89)

No-clean SMT process and water wash (Clean) repair

Electronics Forum | Wed May 25 18:33:18 EDT 2005 | russ

We have passed testing using this process, I would consider it on a case by case basis however. We are very careful about the quantity of the O.A. that we use. The water soluble flux is gone after cleaning unless it was/could be encapsulated or tra

No-clean SMT process and water wash (Clean) repair

Electronics Forum | Wed May 25 18:09:47 EDT 2005 | Fluxed_State_of mind

Need some input here..... The fear is that the if we use water soluble flux at the repair operation, that the no-clean encapsulation will capture some of the organic material as it cools down and goes to its original state. The organic material wil

No-clean SMT process and water wash (Clean) repair

Electronics Forum | Fri May 27 12:09:59 EDT 2005 | saragorcos

You do want to be very careful with potentially entrapped organic materials as they are prone to causing electrical leakage failures particularly around sensitive devices. There is a new clenliness testing tool available that tests a localized area


Electronics Forum | Mon Feb 13 12:17:32 EST 2006 | davef

Se�or Tech Put a penny in your water wash tank that uses DI water. It will disappear in a couple of weeks.


Electronics Forum | Fri Feb 10 09:28:54 EST 2006 | stepheniii

Water is known as the universal solvent for a reason. Not because it's a powerfull solvent but because it has hydrogen bonding and is bi-polar. I think it's the polar nature of H20 that makes it disolve ions. D.I. water will pick up ions where it c


Electronics Forum | Thu Feb 09 21:57:25 EST 2006 | davef

Se�or Tech If you want clean board using a dish waher, you must run deionized water. If you run DI water through a dishwasher, it will cut through those flimsy pipes like fire driven by Sana Anna Winds through dry brush.


Electronics Forum | Fri Feb 10 07:54:56 EST 2006 | cyber_wolf

Dave, Are you talking about electrolysis ? I thought D.I. water prevented this reaction ?


Electronics Forum | Wed Feb 08 12:07:53 EST 2006 | cyber_wolf

Not to be funny, but can't you use a dishwasher ? They are cheap. The only worry there may be water spots, but if you blow your boards dry with an air hose I think they will be OK.


Electronics Forum | Mon Feb 13 13:34:53 EST 2006 | pjc

Look for the following machines: Aqueous Technologies ECD EMC Austin American The above mfrs. make "industrial" grade dishwashers for assembled PCB de-fluxing. Search any of those names followed by "..... batch cleaner", and your search engine will


Electronics Forum | Thu Feb 09 10:29:37 EST 2006 | stepheniii

I worked at one place where they had a dishwasher. They had stopped using it by the time I got there. But if they had kept using it I would have gotten a clean glass and put it in to see how clean it came out. I think after a while with only one tan

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