Electronics Forum | Fri Dec 16 11:21:18 EST 2005 | patrickbruneel
Steve, Water-soluble fluxes are per definition very corrosive and need to be cleaned (read the data sheet) Encapsulation will prevent humidity reaching the water-soluble acids but will not prevent reducing the metals the flux is in contact with to m
Electronics Forum | Thu Jan 05 04:42:44 EST 2006 | Rob
Hi Mariss, "water soluable flux residue to somehow damage the X7R capacitors" I think you are looking into the wrong area. Yes flux is aggressive and can lead to problems, however it would not single out X7R capacitors above capacitors of other di
Electronics Forum | Mon Jan 16 11:00:33 EST 2006 | frankp
Danny, I'm hoping to hear more about this, too. I've seen it mentioned in a couple of other posts, but so far Sara G. (Foresite Inc.) is the only regular SMTNet poster that's actually seen this stuff. Really curious about residues, and what kind of f
Electronics Forum | Mon Jan 23 16:35:51 EST 2006 | frankp
Took your advice Sara, and did contact PK. Got a data sheet that says "no residue on boards or components". But not done with concerns just yet - for example, if the MS2 becomes thicker and more viscous, what's that doing to my pumps? Unfortunately n
Electronics Forum | Thu Mar 02 23:09:20 EST 2006 | praveen39
We need to clean the RMA flux residue on the PCBAs. The PCBA material is ALuminum base(Gold finish)stacked with Rogers Material PCB.Any solvent recommnedtaions? Is HCFC 141b a good solvent (quality & Price). we need to use vapor degreaser and also do
Electronics Forum | Mon Mar 27 11:03:06 EST 2006 | mapell
Tribol 1430 is the latest generation oil, 930 can't take lead free temps. Please see the following link.... http://www.castrol.com/castrol/productdetailmin.do?categoryId=82958955&contentId=6004371 If your getting alot smoke and residue, reduce the
Electronics Forum | Thu Mar 30 08:06:31 EST 2006 | smartasp
Hi Samir I totally agree with you on the customer issue. We have all of them. Where we have free hands we supose to use the flux as specified (one fits all) by our technical guy at the head office in europe. I realy start to question the desicion si
Electronics Forum | Sat May 27 12:50:14 EDT 2006 | GS
HI, just my 0,00001 cents Which preheat system does your wave solder has? for instance ? - IR ? - Bottom only ? - IR + Forced Air ? (bottom) - IR + Forced Air (bottom) IR top ? PCB thickness ? Appropriate preheat is important when looking to f
Electronics Forum | Tue May 09 18:00:33 EDT 2006 | russ
in all actuality, you are both right. Alpha metals does have the toughest/hardest noclean residue that I have seen. When changing to no-clean FLUX you should run different probes. So back to square one. You're both right so who's gonna win?
Electronics Forum | Tue May 16 07:44:42 EDT 2006 | Chunks
Hi smtspecialist (man I gotta get me a name soon), NO! Your oven cannot contaminate your process. Unless you have flux residues dripping on your board, there is nothing to worry about. Now having your operators switch from leaded to lead-free smo
