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 | Thu Oct 05 10:25:13 EDT 2017 | davef
Consider ... * National Physical Laboratory (NPL) [http://www.npl.co.uk] did an extensive amount of research on proper frequencies and power levels for ultrasonic cleaning, maybe in late 1980s or early 1990s. That report might help you sort through
Electronics Forum | Wed Dec 13 15:19:32 EST 2023 | hhudson
It has been happening in the mornings, and we do have a weak middle element, but our temp is always above 60C. we have it set at 65C. the service manager for the machine assured us that temperature wasn't the issue. Also, our flux application for ERS
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 | 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 | Thu Nov 29 11:06:47 EST 2012 | davef
Approaches to getting started are: * Most batch cleaning equipment suppliers provide both open and closed loop options on their machines. Talk to them about upgrading your machine. * There are companies that specialize in supplying closed loop system
Electronics Forum | Fri Oct 03 01:03:15 EDT 2003 | Truett H.
I would discourage the use of city water at all - where rinsing electronic parts is concerned, it contains too much contamination. If practical, route DI water to your first tank and implement some aggitation (either nitrogen bubbles from the bottom
Electronics Forum | Thu Oct 02 21:00:26 EDT 2003 | davef
Who says the chlorine comes from your tap water? Our PTOW dumps boat loads of chlorine into our water periodically. Sometimes it's so bad you can smell it. We doubt that it is the source of your problem. This chlorine will volitize very quickly,
Electronics Forum | Tue Jul 01 21:40:04 EDT 2008 | davef
Vapor degreasing systems * Thermal Equipment [Baron-Blakeslee]; Torrance, CA; thermalequipment.com * Exselect Engineering; Concord, ON CAN; exselect.com * Branson Ultrasonics; Danbury, CT; bransoncleaning.com * Greco Brothers; Providence, RI; grecob
