Electronics Forum | Fri Nov 05 17:29:53 EST 2004 | Steve Stach
Most metal stencils today are cleaned with a water based cleaning solution. 3 choices are most typical: (1) Water only for water-soluble paste (2) Water + Organic for rosin and no-clean (low residues. This affords lower temperatures and is easier t
Electronics Forum | Tue Jan 11 11:50:35 EST 2005 | Shean Dalton
Consider these three potential causes: 1) too much sludge - if the sludge builds up around or over the temperature sensor, then the sensor does not get an accurate reading. 2) too much chemistry in the evaporation solution - Check the temperature a
Electronics Forum | Tue Jan 11 15:22:03 EST 2005 | Shean Dalton
Dear J. Dumont, If the 4512's defoaming package is not active in the distillation process, then you may be dealing with foaming, which is exagerated at boiling point. The 4512's defoaming package may not be carried over in sufficient quantity from
Electronics Forum | Wed Apr 27 13:49:11 EDT 2005 | Shean Dalton
Hi Sarag, We share Sara's described experience with cleaning No-Clean/Low Residue flux residues. We can add that of the Low Residue residues, Indium SMQ92J is one of the more challenging flux residues to clean. That said, we have had repeated succ
Electronics Forum | Wed Feb 01 12:57:51 EST 2006 | wheels_in_the_well
There are several makes of stencil cleaning equipment. The previous post mentioned, Aqueous Tech (www.aqueoustech.com). Others of long standing high reputation are EMC Global (www.emcgti.com), Austin American Technology (www.aat-corp.com), and Tech
Electronics Forum | Thu Sep 21 10:17:15 EDT 2006 | slthomas
I don't know if it's legal, but I do know that other companies are doing the same thing. I have a couple of semi-auto printers that I actually sold my current company from my last company. Called 'em up a few months ago to order some parts and they w
Electronics Forum | Tue Sep 26 16:46:39 EDT 2006 | slthomas
"I can understand the tech support thing to some extent..." Absolutely. "...but not selling parts." Bingo. As far as I can see it costs them money, so why would they do it? I find it hard to believe it's spite, but that's about all I can come u
Electronics Forum | Tue Jun 12 18:48:49 EDT 2007 | mefloump
We seem to have an overwhelming amount of foam produced in the initial rinse portion of our wash (enough to cause it to overflow). We are using an Austin American Hydrojet Mach III Inline Cleaner. To my understanding the first rinse of the boards is
Electronics Forum | Wed Jun 13 08:24:30 EDT 2007 | davef
Most often, when people talk about a dishwasher, here on SMTnet, they're talking about a batch cleaner, not a dishwasher from Sears, or someplace like that. For limited applications, a home use dishwasher will do a perfectly adequate job of cleaning
Electronics Forum | Fri Jul 23 14:41:41 EDT 2004 | Steve Stach
Dear JSK, It sounds like the root causes of your problem are two fold. First, excessive heat will polymerize the abietic acid found in rosin forming neo-abietic diamers and polymers which are much less soluble than the parent monomer. There are
