Electronics Forum | Thu Sep 06 17:37:05 EDT 2007 | hakerem
Hi Joris - There is an excellent wave solder guide called "Take No Prisoners" that includes instructions for attacking and eliminating solder balls and preventing their recurrence: 1. Increase Dwell Time Solder balls are normally caused by too much f
Electronics Forum | Mon Jun 18 04:21:22 EDT 2012 | brettrenishaw
Measured the pot temprature independantly from the software (268C/514F from moving wave). We are using Dross Inhibiter Tin/P Regenerator from BLT. Monthly sample checks are carried out on the solder bath and are all within limits. It will be hard to
Electronics Forum | Sun Jun 25 22:58:49 EDT 2000 | gary
thanks for the feedback....but what's your delta T and how will you know that you are within the delta T range ?...I think this is the main point of the above topic...can you elaborate more on how did your company get Delta T ? thanks and regards,
Electronics Forum | Thu Jun 21 23:00:16 EDT 2012 | davef
It's possible that if the nickel on your board was skip plated by your fab that you would get the symptoms that you describe.
Electronics Forum | Tue Mar 07 16:20:22 EST 2023 | ccouture
any advantages over other nitrogen systems, like cost, maintenance, installation, etc?
Electronics Forum | Tue Mar 07 17:31:14 EST 2023 | ccouture
fluxer requires normal shop pressure, around 100psi. Thanks for the infos, very useful.
Electronics Forum | Wed Mar 08 12:41:10 EST 2023 | proceng1
Agreed. If it's just a means of propulsion/ atomization the purity probably isn't too critical.
Electronics Forum | Wed Mar 08 12:42:03 EST 2023 | stephendo
For fun ask the sales guy where they came up with that number. Or even the reasoning for using nitrogen. Don't expect quality answers.
Electronics Forum | Wed Jun 13 16:51:26 EDT 2012 | davef
Sorry, but I don't have a quick and easy answer. Before jumping the 'black pad shark,' tell us more about your boards ... * Is the gold still on the pads after soldering? * Can you make the pads take solder using a soldering iron? * Does this happen
Electronics Forum | Thu Jun 14 15:29:29 EDT 2012 | davef
That you can get good solder flow when hand soldering seems to indicate that the temperature of your solder pot is too low. Still, I'm uneasy that you see gold on the pads after passing the board across the solder pot. Gold is so thin with ENIG. So
