Electronics Forum | Mon Apr 30 22:41:29 EDT 2007 | davef
Cross: IPC nor anyone else calls out recommended pressures for washers used to clean circuit boards. IPC and the other standards setting folk are in the business of defining the expected results or outputs of processes or acceptance criterion. They
Electronics Forum | Sun Mar 28 22:17:36 EST 2004 | Grant Petty
Hi, I would also be interested in this thread, but our problem has a different twist to it. We have good results from our reflow with Koki no clean paste, however when we pass the boards through the wave solder machine, the flux in that leaves a fog
Electronics Forum | Wed Mar 31 21:08:34 EST 2004 | Ed
Hey guys. I've been manually dunking circuit boards for 8 years now. I too have the excess residue issue to contend with. I'm using a low solids - no clean flux from Kester (959). I have used solvents, thinners, windex and a multititude of cleane
Electronics Forum | Fri Feb 05 11:50:54 EST 2010 | baildl632
I just browsed this article and found no mention of cleaning with a "sonic" washer. We have a PMR Systems Ultrasonic Stencil Cleaner. The manual says it works well on cleaning PCB's for varoius reasons. It works excellent for removing lead. We can wa
Electronics Forum | Thu Sep 26 14:03:55 EDT 2002 | Randy V
There are allot of issue to washing that need to be considered before you purchase a washer. But to answer your question regarding ultrasonic cleaning: 1. Ultrasonics with the correct frequency will not damage most components. Washing in general can
Electronics Forum | Fri Apr 27 13:35:46 EDT 2007 | sjpence
I do not know of any standard recommended values for impact pressure in cleaning equipment. They act more as a guide when examining the various choices manufacturers have made for the spray flow, nozzle pressure, nozzle spray angle and other factors.
Electronics Forum | Fri Apr 02 01:10:01 EST 2004 | Grant Petty
Hi, We tried that, as the Soltec has a spray fluxer that can flux just the connector part of the board, however we get really heavy solder deposits on the rest of the board that has no flux sprayed on it, so we seem to need to coat the entire board.
Electronics Forum | Fri Jan 19 20:55:56 EST 2007 | Mike Konrad
The answer depends on the cleaning / defluxing method. There are many fine chemicals available. One must first consider the cleaning method, then safety (environment and operator), then cost. For automated board cleaners (defluxers), consider th
Electronics Forum | Fri Mar 22 14:34:16 EDT 2024 | carl_p
Used a Gen 3 system for screens & boards. TDC for inline washing.
Electronics Forum | Thu May 07 15:56:43 EDT 1998 | Terry Burnette
80ppm). The CTE of your board and solder joints will typically be 18-22ppm. We have seen cases were the coating fills the gap between the component and the board, then during temperature cycling the coating expands to the point of breaking the solder
