Electronics Forum | Mon Nov 25 20:38:39 EST 2002 | davef
That's basically it. In a wonderful world, the oxides flow on top of the flux during heating through reflow. Obviously when compared to reflow soldering, you create much more dross with your wave by: * Pumping a large volume of very hot solder to h
Electronics Forum | Mon Dec 16 17:35:43 EST 2002 | davef
Jim Consider issuing a purchase order to your assembler for the purchase of selective wave soldering pallets required to solder your board. That way, you: * Own the pallets. * Can take the pallets with you should you decide that another assembler
Electronics Forum | Mon Dec 16 19:05:57 EST 2002 | davidduke
Steve , I agree with all the responses you have received. Randy Villeneuve is absolutly correct in all of his assesments and I would consider him an expert with the process , Gris is correct about adding a "heat sink" to the process complicating pr
Electronics Forum | Tue Dec 17 09:48:44 EST 2002 | russ
Temps are related to the components/PCBs being soldered. I am not aware of any Industry standard. If you are soldering flex circuits, .020" boards etc.. We use 500 deg tips a little thicker PCB/lead we go to 600, and so on. We never exceed 800 in a
Electronics Forum | Thu Dec 19 10:52:12 EST 2002 | bremerg
Does anyone have experience using Sn43Pb43Bi14 solder on high reliability circuit boards that are subjected from -55� Celsius to +85� Celsius? What companies/industries are using this solder? Does anyone have detailed information on what the proper
Electronics Forum | Tue Jan 28 17:10:21 EST 2003 | sajulius
I've seen this problem on more than one wave,What i've done is to run the conveyor a little faster,use a solder temp of 505 degrees F,and most important is to make sure that the solder is flowing over the back. this will keep the thin buildup of dros
Electronics Forum | Wed Feb 12 16:23:30 EST 2003 | russ
I agree with DDave, You have something else wrong! .100 dips with .05" lead protrusion should not bridge (in fact I would think that it would be almost impossible). Tell us about your machine, (laminar flow, A-wave, etc.., size of nozzle, wave heig
Electronics Forum | Wed Feb 26 13:15:52 EST 2003 | Mike Konrad
The specific answer depends on what your specific application includes. #1: What are you removing? (solder paste, adhesives) #2: What are you cleaning? (stencils, screens, misprints, pallets) #3: What type of machine are you using? (Spray-in
Electronics Forum | Wed Feb 26 18:48:01 EST 2003 | kennyg
I'm trying to solder a 0.011" lead into a 0.015" +/-0.003" hole. Stop laughing please. This is normally possible with difficulty, except if the lead is removed and the attempt is made to re-install a lead. Anyone have thoughts on how to remove nea
Electronics Forum | Thu May 06 20:11:46 EDT 2004 | gregoryyork
It does sound like your leads are to long, speeding it up will reduce volume on lead and most will wick up the joint but when slow excess solder is left as long leads will have little flux left to aid drainage when it leaves the wave, thus giving a s
