Electronics Forum | Wed Aug 07 09:05:11 EDT 2002 | davef
N2 PPM vs %RH? With a firm grasp of the obvious, reflow oven manufacturers rig N2 ovens differently than non-N2 ovens. The N2 displaces O2. Usually N2 oven monitor something or other to give an indication of N2 ppm. %RH really isn't part of the eq
Electronics Forum | Wed Apr 12 21:04:10 EDT 2000 | Dave F
Ashok: You still didn�t tell me why you want additional drying of your boards, but what the hey, we all have our dark secrets. Anywho, let�s consider some options for reducing the moisture of your cleaned boards: OPTION 1 - Up-Grading Your Cleaner
Electronics Forum | Thu Apr 22 12:54:28 EDT 2004 | Chris Lampron
Hi Indy, Loctite has a product called 7360 for cleaning uncured epoxies. We had a similar problem and then found out that the alcohol actually caused the epoxy to start setting making it impossible to clean. We now spray with 7360, wipe off with dry
Electronics Forum | Thu May 04 13:20:55 EDT 2023 | tommy_magyar
We do the same as dontfeedphils, with the difference being that it goes through a drying program too after stencil wash program (3 mins @ 90 degrees air spray) to dry out the via holes and any trapped liquid from under the components.
Electronics Forum | Fri Oct 12 14:32:52 EDT 2001 | Mike Konrad
Hi, Maybe Yes� Maybe No� Actually, it most likely is acceptable to clean assembled boards in an ultrasonic cleaning system (40 kHz). There are some concerns in some circles about possible damage to wire bonds in components. There have been publi
Electronics Forum | Thu Oct 06 09:27:54 EDT 2005 | Amol
measure the board thickness before coat by a screw gauge, and then after, when the coating has fully cured. this works well for a single side coat. once your wet to dry thickness is down, you can spray to a particular thickness wet and be reasonably
Electronics Forum | Thu Sep 02 12:40:55 EDT 1999 | John Thorup
| Dear Netters, | | Can you kindly suggest what cause solder splash in IR reflow boards ?? What are the main causes normally ?? | | | Best Rgds, | Felix | Felix - we need a better description of what it looks like. If it's a spray, usually balls
Electronics Forum | Wed Jan 05 18:25:29 EST 2022 | cyber_wolf
Its kind of nice to be able to put a dirty stencil in the cleaner and get a dry clean one out. That pretty much points to the spray units with a dry cycle. Things to consider, chemistry consumption, how your stencils are bound, maintenance,and of c
Electronics Forum | Thu Sep 01 12:07:35 EDT 2016 | pavel_murtishev
Is there any field proven spray cleaning technique able to remove flux residues under OSRAM LEDs? Is it possible in principle? The problem is that OSRAM LEDs are low standoff ones and I absolutely have no idea how cleaning agent could get there. Mo
Electronics Forum | Wed Feb 01 08:27:29 EST 2006 | Chunks
I haven't seen a hydrometer used in years. Are you still foam fluxing? There used to be automatic units available, but with the advent of the spray fluxer, they may have dried up. If you are still foam fluxing with alcohol thinner, place ping pong
