Electronics Forum | Wed Dec 22 18:17:11 EST 1999 | Doug Philbrick
Although I am certainly no expert here I have seen a very fine looking piece of machinery for selective soldering. Although it too has a small fountain it is fully programmable and relatively fast. It is the Seho MWM3250. Check it out, it will be wor
Electronics Forum | Thu Jan 22 10:21:46 EST 2015 | charliedci
I am curious to know how others are providing N2 for their lead free selective soldering process. If you are utilizing a nitrogen generator, is it a PSA type or Membrane type? I am trying to get a handle on nitrogen purity and what purity is necessar
Electronics Forum | Fri Jan 23 11:27:45 EST 2015 | charliedci
Per our selective solder provider, they recommend a PSA type generator to supply the needed 99.999% pure N2. The membrane type (which we have) does not provide the minimum (99.995%) purity necessary for lead free wave soldering. They happen to sell P
Electronics Forum | Fri Jan 23 10:31:01 EST 2015 | rgduval
What are the continuing costs on the N2 generator? Is there replaceable media that needs to be monitored/replaced at regular intervals to maintain N2 generation? We're currently using tank-supplied N2, but are just getting ready to fire up our sele
Electronics Forum | Wed Dec 22 03:11:36 EST 1999 | Chris May
Pascal, Have a look at this Web site:- http://www.solbraze.ltd.uk e-mail = info@solbraze.ltd.uk I think you may find a suitable alternative here. You have a nice Christmas also. Regards, Chris May.
Electronics Forum | Sat Jan 24 02:10:42 EST 2015 | comatose
Liquid is significantly cheaper than compressed gas tanks if you are in continuous production. Of course, it will eat your lunch if you're running things for a few days, then the machine sits idle for two weeks. It boils off whether you use it or n
Electronics Forum | Fri Jan 23 12:34:28 EST 2015 | dyoungquist
Our nitrogen generator and an air drying unit came with the selective solder machine when it was purchased new in 2008 as a package deal. We originally were feeding the system with air that was not properly dried. That lead to some maintenance cost
Electronics Forum | Fri Jan 23 16:11:38 EST 2015 | rgduval
Charlie, For the 300 cylinder (the largest Airgas sells), it's going to cost about $66/cylinder for the gas (plus delivery charges). They also charge a $99/year lease for the cylinder. Based on those costs, and a low-end N2 generator system that I
Electronics Forum | Thu Jan 06 15:51:08 EST 2011 | flipit
Nitrogen increase surface tension in solder. This also reduces solder balls.
Electronics Forum | Wed Jan 05 13:28:19 EST 2011 | ehess
what does nitrogen do to assist the selective soldering process?
