Electronics Forum | Fri Sep 22 16:21:31 EDT 2006 | patrickbruneel
Figure 1. Human Toxicity Potential, Life-cycle Comparison Tin/lead solder paste is the top formula. SAC is second from the bottom.3 RoHS Report Excludes Comparisons By George A. Riley, contributing editor A European Union (EU) Commission for Envir
Electronics Forum | Thu Apr 20 19:13:29 EDT 2023 | proceng1
What Purity is the N2?
Electronics Forum | Fri Apr 21 06:17:59 EDT 2023 | bukas
images? length of leads sticking out of pcb? pitch?
Electronics Forum | Mon Apr 24 06:09:04 EDT 2023 | bukas
looks like low nitrogen to me
Electronics Forum | Thu Apr 20 20:04:39 EDT 2023 | jamesatqkits
5 ppm from cylinders, thank you for taking the time to respond. Originally I ran no spec nitrogen, and got good results, when I started having issues I changed to 4.8 spec
Electronics Forum | Fri Apr 21 15:31:33 EDT 2023 | jamesatqkits
I had also increased my flux to see if that helped, it did not. 2mm lead length, 5.08 spacing Thank you
Electronics Forum | Fri Apr 21 21:32:06 EDT 2023 | dwl
What kind of fume extraction are you using? If its too high, you could be pulling the nitrogen off of the nozzle.
Electronics Forum | Tue May 02 17:07:12 EDT 2023 | jamesatqkits
I made a nitrogen nozzle from a starfrite silicone funnel and it improved the issue by about 80%. Thanks for the feedback
Electronics Forum | Tue May 02 14:53:31 EDT 2023 | jamesatqkits
Hi Bukas, thank you for taking the time to respond. My flow gauge shows 35 SCFH and the pressure is around 50 psi. Maybe the flow gauge is wrong? Thanks again. What delivery pressure do you run, if you run a selective solder machine? Thanks again. I
Electronics Forum | Fri Apr 21 22:13:14 EDT 2023 | jamesatqkits
It is pretty high, I will have to try it with no exhaust, thanks for the idea. Have a great weekend. I should also mention someone that knows metal alloys told me that that much extra Nickle can cause the melt point to go up. Does anyone run hotter t
