Electronics Forum | Tue Aug 22 18:15:50 EDT 2006 | russ
okay so both the 2005 formulas from interflux are clear alchol based fluxes. Yellow res huh? In looking at the temps here, I would say you might be too hot at both preheat and solder temp. You may be burning flux. How long is dwell time over wave
Electronics Forum | Tue Aug 22 13:55:44 EDT 2006 | Steve
Using no-clean flux going thru wave when comes out there is a bit of flux residue left on board. If wiped the residue shows a yellowish tint. Any ideas what this means how to get rid of it?
Electronics Forum | Tue Aug 22 15:37:22 EDT 2006 | russ
Sounds like a rosin flux. Is it sticky as well? Russ
Electronics Forum | Tue Aug 22 15:34:14 EDT 2006 | Chunks
Hi Steve, What type of flux? How do you apply it? What kind of wave? Rite off the cuff, I'd say you're applying too much flux, but without knowing a little more, it's tuff to say. It could even be board related. Hate to see what WML has to say
Electronics Forum | Tue Aug 22 21:11:10 EDT 2006 | davef
We agree with Russ. Your topside should be 100 - 130*C. Your 265*F is at the top of the range. Look here: http://www.interflux-electronics.com/Products/Fluxes/IF%202005M/TD%20IF%202005M.pdf#search=%22Interflux%20IF%202005%22
Electronics Forum | Tue Jun 07 12:07:30 EDT 2016 | wlsmt
Sorry davef. I was not being clear. PCBAs came out cold soldered after being reflowed the first time with ALPHA WS-820. The flux gel ALPHA WS 609 was supposed to be applied only onto the terminations of caps where ALPHA WS-820 was for a second refl
Electronics Forum | Thu Jul 10 13:02:18 EDT 2014 | clydestrum
I'm not sure what happened to my post, but we think to have got the situation under control. The solder joints on the boards looked terrible. I can only describe it as unburnt flux, maybe. (like if you took a spoonful of solder and sprayed flux direc
Electronics Forum | Wed Jun 15 10:38:41 EDT 2016 | laynefelix
Hi everyone..i am new here. I am hardware design engineer and as per my experience PCBAs came out cold soldered after being reflowed the first time with ALPHA WS-820. The flux gel ALPHA WS 609 was supposed to be applied only onto the terminations of
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 | Wed Oct 23 08:40:20 EDT 2002 | davef
Yer not making this easy. What kind of flux? If no-clean flux, what controls are you using to assure you are: * Applying the correct amount of flux? * Properly activating the flux? If water washable flux, talk to us about your cleaning methods and
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