Electronics Forum | Thu Mar 25 13:53:28 EST 1999 | Bob Willis
| | | Your problem may be related to silver migration (leaching) into the solder. I had what seems to be a similar problem. The solution was using solder with 2% silver content. See these pages for a bit more information: | | | | http://www.ferr
Electronics Forum | Thu May 18 21:46:21 EDT 2000 | Dave F
Scott: First, it's neat that you do cartridge monitoring on you staff. We do that once a year. We (and I assume others) are responding to OSHA requirements: Lead CFR 1910.1025 permissible exposure limits for lead, provisions for medical examinati
Electronics Forum | Tue May 18 09:58:17 EDT 2021 | kumarb
Thank you so much for the advice. We were suspecting blockage but know that we have clean nozzles. Did the air blow out and removed a spot of black matter - perhaps what was an old o-ring? Nozzles are 61 and 62 posing the issue. Our tech said that 64
Electronics Forum | Thu May 10 10:33:46 EDT 2001 | Eyal Duzy
Genny, I would like to correct part of the things that you were told. As far as I know, X-Ray tools are not positioned as tools to find solder volume simply because it is not a strong point for them. An X-Ray image is either a projection (2D transm
Electronics Forum | Mon Aug 28 20:45:41 EDT 2006 | darby
Dave, I have never even seen black pad - even in my subby days. As my wife says whenever I find a good parking spot: "Lucky Darby and his beautiful wife!" This is particularly so if we go to Watto�s - www.sydneypubguide.net/pubs/Watsons_Bay_Hotel_(D
Electronics Forum | Tue Sep 13 11:05:38 EDT 2011 | nucleartoast
I worked for Electrovert for 20 years as a machine designer. Our first computer controlled solder machine the Century 2000 used Infra red pyrometers that were very accurate - once you calibrated it against what you wanted to measure. So the aim and s
Electronics Forum | Thu Dec 24 14:37:58 EST 2020 | marcelorotofrance
Hi again Bob. I have checked the machine and it resulted that the files of that program were corrupted in some way. All other programs worked fine. I have a back up copy of all progs in a different drive so I fixed it. Two days ago there was a huge b
Electronics Forum | Thu Jun 22 10:23:14 EDT 2006 | cuculi54986@yahoo.com
I'm no AOI expert by any means, however I spent a few minutes one time about 4 years ago working on an old CR Technology (or is it CR Technologies?) machine so I've been chosen by my company to be the "technical guy" for our AOI evaluation. We are l
Electronics Forum | Wed Jul 28 20:14:22 EDT 1999 | Dave F
| While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That would
Electronics Forum | Thu Jul 31 15:41:23 EDT 2003 | davef
Q: Could any of you guys tell me what exactly is this greenish thing ? A: No, but is not copper oxide. Copper oxide is brown, the color of a penny [here in the US] or an untreated copper laminated trace on a board. Many copper salts are greenish in
.gif)
