Electronics Forum | Wed Oct 07 13:15:06 EDT 2015 | markhoch
You can most certainly use the same reflow oven for both leaded and lead-free pastes. Obviously your thermal profiles will be different, as the lead-free paste should have a higher reflow temp. As long as your oven has adequate exhaust and flux manag
Electronics Forum | Thu Dec 03 14:37:53 EST 2015 | proceng1
Are you running a water or alcohol based flux? We run a water based product and it stays in the tank with the stone all week and is emptied and cleaned at the end of the production week. Never once have I stored the stone in thinner and I've never
Electronics Forum | Thu Dec 03 15:30:00 EST 2015 | ttheis
We've started off with Kester 951 'no-clean' so far which is alcohol based I believe. It seems to do very well with foaming, activation and low residue, but if we can move to water based and get good results that would be great. The 951 flux and thin
Electronics Forum | Wed Feb 03 15:29:33 EST 2016 | sarason
Have you ever done QC type thinking on your problem or are you aware o fthe methodology? Do you run your plant in a clean room environment? Do you clean after reflow? If not Why? What sort of products are you running? What sort of oven are we ta
Electronics Forum | Mon Jun 06 12:51:17 EDT 2016 | wlsmt
My operator applied flux gel ALPHA WS-609 on MG P/N FTH101XAP (CAP ALUM 100UF 50V 20% SMD) before aqueous washing the PCBAs. Solder paste used was ALPHA WS-820. Now the caps have yellow stains. Any solution to this is appreciated. Tks
Electronics Forum | Mon Aug 29 08:44:57 EDT 2016 | jrrt_williams
As an OEM repiar tech I would run into "Black Pad" on occasion, though mostly on surface mount pads. The only way I could remove the oxidation was to apply water soluble flux and add solder, then wick away the excess. This left me with a suitable s
Electronics Forum | Wed Jun 22 01:57:28 EDT 2016 | sachinverma
we face the problem to last month dry solder issue.when we found PCB is dry. (PTH not fill not properly)then we change the parameter like flux Tank pressure increase 130 to 250. after these activity PCB is ok no dry solder found......but problem is o
Electronics Forum | Tue Jan 10 02:17:29 EST 2017 | soldertraining
Hi ! I am also looking for the same and I am aware of this little like the -selective solder machines are generally cheaper to run due to the reduced amount of flux and solder being used and it’s possible to use a solder with no silver content and st
Electronics Forum | Fri Dec 02 05:06:11 EST 2016 | slavek
Hello, my question would be how often you clean the pot? The second picture with the particles looks for me like burned flux etc. When you took out a large quantity of solder dross, I think that big amount of it was released into system. Clean the
Electronics Forum | Tue Dec 27 06:52:34 EST 2016 | luciano
Thanks for your advice. I've tried setting the temperature up and even measuring the temperature at the wave itself but had no luck at all. I've also tried using temperatures going from 245 ºC up to 260 ºC. The amount of flux was adjusted as well a
