Electronics Forum: selective soldering without nitrogen (Page 1 of 26)

full nitrogen tunnel

Electronics Forum | Wed Jan 24 17:48:28 EST 2018 | ranap121212

Hello Could I ask for advice? We have new machines with a full nitrogen tunnel. Type of soldering nozzle: worthmann 5 rows and next nozzle (in this same machine) worthmann 7 rows. One person in my organization claims that the delta nozzle is not wor

lead free selective soldering

Electronics Forum | Thu Nov 03 09:43:55 EST 2005 | lupo

Check flux penetration and type of flux. How much is solid contents. The solder filling is better under Nitrogen. Check the time (speed) of the nozzle whether is correct. Usually For SAC305 the temperature of bath is 320C/degrees, but only for sel

Lead free Solder Paste & Use of nitrogen

Electronics Forum | Mon Jul 29 19:39:57 EDT 2013 | hegemon

No problem running lead free without nitrogen. Careful profiling will take care of the soldering. Cosmetically, the Nitrogen reflow is superior for lead free, and we see much better wetting, better coverage of the PWB pads, and of course the smooth

Nitrogen used in selective soldering

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

Nitrogen used in selective soldering

Electronics Forum | Thu Jan 22 13:01:14 EST 2015 | dyoungquist

We are using a nitrogen generator (with a N2 storage tank) that feeds 1 selective solder machine. I do not know which type of generator it is. The N2 generator has an oxygen analyzer on it. The selective solder manufacturer recommends a N2 purity

Nitrogen used in selective soldering

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

Nitrogen used in selective soldering

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

Nitrogen used in selective soldering

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

Nitrogen used in selective soldering

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

Nitrogen used in selective soldering

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

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