Electronics Forum | Mon Dec 10 13:56:51 EST 2001 | slthomas
1) The additional activity of the OA flux probably took care of the oxydation. How do you plan on taking care of the presence of conductive and corrosive residues from it now, though? You're not supposed to wash those parts with water. 2) The tomb
Electronics Forum | Thu Dec 28 15:40:13 EST 2006 | fredericksr
The fluxes involved with lead-free soldering tend to be more aggressive and the tip deterioration is a side effect of making the world a greener place. I am not certain if any of the tip manufacturers claim to have lead-free resistant tips. I would
Electronics Forum | Sat May 31 09:49:55 EDT 2008 | gregoryyork
physically lift board of after fluxing to visually see what is covered, or using thermal fax paper to get to see coverage works well. PROPER low residue or no residue fluxes leave benign insulating residue behind not corrosive.
Electronics Forum | Tue Feb 10 18:39:06 EST 2009 | solderq
Quick production (no "pasty" phase) > High joint surface quality > Good flux action > No discolored, corrosive, or substantive residue of any kind > Lead-free is not a concern ;o) Any input/ideas are appreciated. Thanks!
Electronics Forum | Mon Mar 23 16:28:14 EDT 2015 | aqueous
Dendritic growth is always a result of three combined factors: Conductive/corrosive residues Electrical current Moisture A wave solder process normally applies a higher volume of flux than a printed process. Flux however is not the only source. F
Electronics Forum | Fri Nov 03 09:41:17 EDT 2017 | davef
On your question about reliability ... " Is there testing we can do (environmental stress chambers) with which we can see the long-term effects of flux residue on solder joints?" Sure, incompletely activated low residue flux residues are potentially
Electronics Forum | Mon Dec 10 16:44:51 EST 2001 | davef
Good for you!!! Similar to Steve's comments ... 1. NON-WETTING DEFECT: Yes. Your Lonco is a �stand and deliver� flux. Not some limp wrested impersonation of a flux like most nc fluxes. Without speculating about �incompatability�, recognize that
Electronics Forum | Tue Jun 13 08:17:06 EDT 2006 | davef
The solder alloy does not change based on the flux. Your potential for embrittlement is the same [providing the metal of the solders are the same] with either solder. We would guess the OA flux is [and drag tinning are] removing corrosion from the
Electronics Forum | Thu Dec 08 08:13:48 EST 2005 | grantp
Hi, Copper oxide is green right? So the green residue after a few days is corrosion of the wire? Regards, Grant
Electronics Forum | Thu Jun 14 22:50:45 EDT 2001 | gregH
Hi, I read an article that says "Flux selection usually depends on the following factors": a) Solderability of pcb base metal or coating b) Corrosivity of vapours and residues c) electrical resistivity of residues d) Ease of removal of residues e)