Electronics Forum | Wed Sep 10 12:43:13 EDT 2008 | patrickbruneel
Dave, I don't think you will get a response in the mean time he found the right knobs to fix the problem. Sorry couldn't resist
Electronics Forum | Wed Sep 10 15:31:11 EDT 2008 | gregoryyork
Should have sent them in for Xray/microsection Steve that sorts out the QA guys over here
Electronics Forum | Wed Sep 10 15:54:57 EDT 2008 | slthomas
"When we solving a problem we have to be absolutely sure it's really solved." Conversely, it's always good to return things back to the way they were when you conclude that THAT knob turn didn't solve the problem.
Electronics Forum | Wed Sep 10 16:09:45 EDT 2008 | vladig
To me it speaks about teh quality of the engineers. I[ve seen both types, though Vlad
Electronics Forum | Thu Sep 11 10:18:15 EDT 2008 | gregoryyork
Sorry all I know is that storing the paste Tip down the flux will run to the tip of the cartridge so will be runny initially then dry up as you use the cartridge. Unless the Rheopump mixes it before application
Electronics Forum | Thu Sep 11 10:25:51 EDT 2008 | rarnold
Flux is less dense than metal so it 'floats' to the back NOT the tip when the tubes are stored tip down.
Electronics Forum | Thu Sep 11 11:11:31 EDT 2008 | gregoryyork
Yes sorry you are right so you have answered your own question anyway. Dry to start runny at the end
Electronics Forum | Thu Sep 11 12:38:45 EDT 2008 | vladig
I'm curious how many knobs have left to be turn? :-) Isn't time an issue in a production environment? Vlad
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 | Fri Jun 22 07:16:37 EDT 2012 | brettrenishaw
Spray fluxing yes but have checked the uniformity by using a fluxometer. Also have put boards through with only flux and preheat. no wave up to see if the carrier is being burnt off. I will look into the skip plating issue. Thanks again
