Electronics Forum | Wed Dec 04 14:09:52 EST 2002 | Vince Whipple
By the way, what type of preheaters do you have? IR? Convection? If you have IR, there may be a way to cheat. Vince W
Electronics Forum | Mon Dec 23 17:20:05 EST 2002 | davef
Try: * Prebake * Flux density * Conveyor speed * Upper preheat * Cooling time * Chip wave * Solder temperature You could add immersion depth (1/3 to 2/3 of the board) to convince yourself that it has the least impact of any variable in wave solderin
Electronics Forum | Thu May 22 09:59:54 EDT 2003 | russ
You also would want to talk with your flux supplier. They are usually knowledgeable in the proper application of and heating of their fluxes. Usually, insufficient solder in a wave process is related to insufficient preheat,dwell time, and flux app
Electronics Forum | Fri Jun 20 11:05:53 EDT 2003 | russ
Why don't you give us the full process along with your delta T for the wave (final preheat temp to wave contact temp). Don't forget de-paneling, ICT, and other things. It could be from the supplier, but it usually is from excessive placement force
Electronics Forum | Fri Aug 08 09:38:11 EDT 2003 | mleber
Top and bottom preheat - topside temp 250 plus at times attempting to get the upflow. Vitronics / Soltec machine using smart wave. Thanks - Matt
Electronics Forum | Tue Dec 16 11:39:33 EST 2003 | davef
Sounds like your preheat temperature controllers are out of adjustment. Check your operating manual for instructions.
Electronics Forum | Fri Dec 19 16:58:47 EST 2003 | rontdc
Kev, If I remember correctly, Hollis used calrod preheaters on that machine and they had a reflector under the elements to reflect the radiant waves back to the PCB. You might want to clean the reflector. If it is too far gone, use some Reynolds Wr
Electronics Forum | Thu Jan 08 16:21:18 EST 2004 | Dean
Oh I forgot...is this product wave soldered? Opens can occur if your wave preheat and dwell are not controlled. I ran into this years ago....wild situation. Good luck
Electronics Forum | Wed Jan 21 10:13:14 EST 2004 | ADAM
What is the most effecient form of heating ,ie calrod, IR, convection , or a mixture ? to produce a good thermal profile on a wavesoldering system on thermally challenging multi-layered boards? Thanks Adam
Electronics Forum | Tue Feb 10 12:16:40 EST 2004 | zaxx007
Dear Kratzman, We had one of their waves an 8FD and we had the worst time getting replacement pre-heaters, I would stay away, just my oppinion. Zack
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