Electronics Forum | Mon Aug 16 16:57:06 EDT 2004 | Shean Dalton
Try to observe the board as it exits the wave, look for solder snapping as the leads finally exit the solder. The surface tension could be such that a "string" of solder stretches away from the wave until it finally breaks. Then, as the string reco
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 02 02:30:08 EDT 2004 | Mike Konrad
Silverado, To answer your specific question, there are several manufacturers of batch-format cleaning systems. Aqueous Technologies www.aqueoustech.com Austin American www.aat-corp.com EMC www.emcgti.com UnitDesign www.unitdesign.com Each man
Electronics Forum | Tue Nov 06 10:06:33 EST 2018 | davef
Electronic Connector Industry News Resources + Surface Finishing + Metal Finishing + Products Finishing + Interconnection World (Connector Specifier) Electronic Connector Associations + IEEE USA + International Electronics Manufacturing Initiative (
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
Electronics Forum | Thu Jan 29 15:30:41 EST 2004 | pjc
Rick, As I understand your comments, you do not need to clean off the flux residues? Then hot water and a little cleaning chemistry should do. However, there may be some reaction by the residual flux if not enough cleaning chemistry is used. There a
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