Electronics Forum | Fri Jun 30 09:03:09 EDT 2006 | Frank
The manufacterer of our machine recommends 99.999%. At their presentation before we purchased the machine they showed an example of using different purity levels. When they whiched the supply to 99.99 and then to 99.95 you can visibly see the diffe
Electronics Forum | Thu Jun 29 10:45:46 EDT 2006 | stepheniii
We have an ERSA Versaflow Ecoselect selective wave soldering machine. It works well except it needs nitrogen. You can't even move the table around if your nitrogen tank is empty. The spec sheet says Required degree of purity: Nitrogen liquid 5.0
Electronics Forum | Fri Jun 30 08:14:03 EDT 2006 | slaine
I looked into nitrogen generators, it was 4 years back and I was trying to get 99.995 i think. About �20,000 for the generator then another �20,000 for the compressor you need to force the air in. I spoke with David Groome of BOC UK 01709 842358
Electronics Forum | Tue Jul 04 19:37:05 EDT 2006 | two cents
100 PPM or 99.99% purity is sufficient for any soldering application. There are a number of manufacturers that make PSA style nitrogen generators that are great systems for electronics applications. They are low maintenance and will pay for themselve
Electronics Forum | Thu Jun 29 17:38:51 EDT 2006 | flipit
I might be wrong since I don't know this piece of equipment but I think ROL might be a better measure. For 63/37 it used to be 20 ppm ROL (residual oxygen level) was about what you needed for a reflow oven. This is to take full advantage of all tha
Electronics Forum | Mon Jul 14 22:40:45 EDT 2008 | edmaya33
hello Dave, thanks for the references. i will try to compare the results in 3 months interval.
Electronics Forum | Mon Jul 14 07:49:50 EDT 2008 | edmaya33
Do we really need to follow the IPC J-STD-001 Solder purity? If so, how to effectively balance the chemistry of Sn63/Pb37 other than adding a pure tin on the solder bath? Is this really needed to monitor in monthly basis?How many kgs of pure tin pe
Electronics Forum | Mon Jul 14 09:41:35 EDT 2008 | davef
Q1. Do we really need to follow the IPC J-STD-001 Solder purity? A1. Yes, you should control impurities in solder. Further information: * "Allowable concentration of contaminating elements in solder: impurities are harmless unless their level goes to
Electronics Forum | Wed Apr 27 15:00:17 EDT 2016 | davef
Look here: https://www.google.com/search?sourceid=chrome-psyapi2&ion=1&espv=2&ie=UTF-8&q=Prime%20Virgin%20Mercury%2099.999%25%20Min%20purity&oq=Prime%20Virgin%20Mercury%2099.999%25%20Min%20purity&rlz=1C1LENP_enUS524US524&aqs=chrome..69i57j69i61.1837j
Electronics Forum | Wed Apr 27 10:24:44 EDT 2016 | comulation
Lead (Pb) wasatrasitltd@gmail.com Skype me on Dr.AHMED
