Electronics Forum | Mon Jan 31 12:24:24 EST 2000 | Dave F
Robert: Several points: 1 Dross is a mixture of various things with no "fixed" composition: � The obvious things are metal oxides mixed with metal and this can vary in color with temperature and composition - remember some intermetallic oxides form
Electronics Forum | Thu Jan 27 08:52:05 EST 2000 | Todd A. Braun
We currently use a silicon conformal coating on many of our manufactured circuit boards and are experiencing situations where the coating doesn't conform. For example, on the sharp edges of components and corners of leads it pulls away before curing
Electronics Forum | Tue Nov 09 16:16:57 EST 1999 | Horace Johnson
We have a Ultra 2000 wave solder machine with a Lambda, Omega and Rotary chip waves. We are running three shift and our operators dedross the solder pot every 24 to 32 hours. That is skimming around the nozzles and pumps. Our maintenance does a compl
Electronics Forum | Wed Nov 28 18:24:05 EST 2001 | mparker
Back in the days when pots, skillets, etc. were made of cast iron, vegetable oils were used to "season" the iron to prevent rusting and also from the food sticking to the pot during cooking. It would be reasonable to believe that you could use the sa
Electronics Forum | Thu Jan 24 13:23:53 EST 2002 | Shawn
Thank you all very much for the responses. The solder is eutectic and the problem, as far as I can tell, has been around before I was here, 2+ years. The flow machine is a treiber with 2 bottom preheaters and 1 top. The solder pot temp is 500F +/-4F
Electronics Forum | Wed Jan 30 17:46:15 EST 2002 | davef
Hey, you can only carry that �No savings no bonus!!!� thing so far. * There is negative saving when the machine isn�t running. * I know I have to trim my finger nails, but that doesn�t mean I wait until I hurt myself scratching my nose or on the othe
Electronics Forum | Fri Apr 05 13:42:05 EST 2002 | dougt
We have been using a silicone encapsulated, high flex, flat cable for a short time now and have not been succusfull in terminating it to connectors with shell housings designed for round cable. Our solution thus far has been to leave the housing off
Electronics Forum | Tue Jan 28 16:27:43 EST 2003 | MikeF
I agree with most of the other suggestions here, but 90 C for a topside preheat temp seems low to me. I remember aiming for 98 to 104 C for topside temp just before hitting the solder. Boards that had large ground/power planes or a lot of layers I wo
Electronics Forum | Fri May 07 17:38:00 EDT 2004 | bruce @ knoll
I will try that next. I did speed up the wave pump motor with a larger pully(20% more speed) This was done at the time to try to increase the size of the wave because I had component leeds touching the wave pot as they passed by. Due to the wave high
Electronics Forum | Thu Jun 03 21:27:58 EDT 2004 | davef
We know of two "solder savers" 1 Kester Formula 5749 Solder Saver: We believe Kester Formula 5749 Solder Saver to be a new formulation of Kleenox. Kleenox works. It helps separate the solder entrapped in the dross. [One tiny warning, one chemical
