Electronics Forum | Thu May 30 10:31:03 EDT 2002 | robbied
Hi Yannick. This is an issue that we are just recently getting into but here is some ifo that I have gathered so far. I have seen/ used 2 different rework machines. The one we have bought is a 'PACE TF2000' which was at the lower cost end of the mar
Electronics Forum | Mon May 23 21:30:31 EDT 2022 | jojoled
I am looking for recomendation for best paste printer (or paste dispenser) whoch can inspect the solder paste after printing AND it can be used for simple 2D inspection of assembled PCB too (AOI)... I dont have space for 2 machines now , so both feat
Electronics Forum | Fri Apr 06 12:31:07 EDT 2018 | deanm
Your fluxes are required to be compatible per J-STD-001. I wouldn't even attempt mixing no-clean (rosin) and clean (assuming water soluble) fluxes on the same assembly, especially if the fluxes are from two different vendors. If your paste and liquid
Electronics Forum | Wed Jul 05 13:30:37 EDT 2006 | Chris Griffin
Likely causes of this are: -Preheat temp. too low -too much dross -uncured epoxy -PCB contamination ...also varify the solder flow over the wave is smooth.
Electronics Forum | Tue Jan 19 10:18:58 EST 2021 | grahamcooper22
Hi, try a low spitting cored wire...something like ALMIT SR-LA cored wire...or SR-LA SUPER...it eliminates flux/solder spitting during soldering.
Electronics Forum | Mon Mar 13 15:35:56 EST 2006 | russ
You're a piece of work! Why don't you work for any of the major wave companies? So how does slowing the conveyor speed eliminate drying flux? And when you slow it down, what speeds it up to make you say "I lower the wave because I get shorts going
Electronics Forum | Fri Dec 11 13:06:54 EST 2020 | johndep7
I haven't, that is a good idea, I was reading about the chance of that earlier but I was not sure. The best way to eliminate is to bake the board?
Electronics Forum | Thu Jul 06 03:03:56 EDT 2006 | ronalds
Thank you all for your input. The MF300S Multicore flux is rated for lead free. There is not much dross or contamination. We are using nitrogen. I've tested the boards with the curing test of IPC-TM-650. I think you're all right about the preheat.
Electronics Forum | Fri Jul 23 13:09:48 EDT 1999 | Steve
| There is a practise within the industry of an Inspector inspecting a board, and that same Inspector performing touch-up. My opinion is that the Inspection and Touch-up operations should be separate functions whereby the Inspector is not performing
Electronics Forum | Fri May 23 18:55:20 EDT 2008 | gregoryyork
This is one of the biggest mistakes with the Lead Free process. We have all listened to the 'industry experts' and followed their advice and unfortunately got it wrong. Keep the dwell times (dependant on alloy selection) the same as Leaded so you are
