Electronics Forum | Sat Jul 16 13:53:52 EDT 2022 | yannick_herzog
Hello all, we use a reflow oven from Rehm in our SMT production. At the moment we solder under nitrogen atmosphere (approx. 500ppm). Now we want to reduce the nitrogen consumption (costs etc.). What consequences can occur here? Especially on the s
Electronics Forum | Wed Aug 26 15:44:23 EDT 2020 | dwl
I agree with the other posters. A bottle will last a day tops, A dewar should last a week or two. Dewars have a limited shelf life as the liquid nitrogen will vent even if your aren't using it. My experience is with ACE machines. Bottles are really
Electronics Forum | Tue Aug 25 21:12:14 EDT 2020 | stephendo
We didn't use the machine regularly. The dewars would only be good for a month or two whether you used it or not. The nitrogen evaporates and discharges. The first day we forgot to warn afternoon shift. As far as I know nobody had to change their pan
Electronics Forum | Mon Aug 31 07:10:40 EDT 2020 | bukas
I hacked machine to only spend nitrogen when solder pump is on, this made about 80% save when you count in frame change, fluxing and operator slacking
Electronics Forum | Wed Aug 26 20:52:15 EDT 2020 | stephendo
One thing about liquid N2 is while it is safe, only let trained personnel near it. I believe if someone got their hand frozen on the side, it is not coming off until the dewer is completely empty and warmed up. And make sure management understands
Electronics Forum | Thu Sep 03 01:15:03 EDT 2020 | kylehunter
> I hacked machine to only spend nitrogen when > solder pump is on, this made about 80% save when > you count in frame change, fluxing and operator > slacking Hah! I was thinking of doing just that. What'd you use to trigger the sol
Electronics Forum | Wed Aug 26 16:19:48 EDT 2020 | kylehunter
Great! Thanks a lot for the help Definitely nice when everyone is in complete agreeance. I do think going to liquid nitrogen, then a generator makes sense. Currently we aren't planning on using the machine daily, so we'll probably hold off until we a
Electronics Forum | Fri Mar 14 05:38:42 EDT 2008 | meritajs
Hello Could somebody inform us about real consumption of lead free solder alloy SN100C on your wave solder process. We do not use some antiaxidant and had had alloy consumption about 1 kg per hour. What is your experiance? All sugestion will be well
Electronics Forum | Tue Dec 06 09:38:13 EST 2011 | pszumny
Thanks, is it continuos connsumption or during start up ?
Electronics Forum | Sat Dec 17 18:12:04 EST 2011 | pszumny
Thanks eadthem.
