Electronics Forum | Wed Jan 21 11:46:39 EST 2004 | pjc
Forced Convection delivers the most efficient thermal transfer.
Electronics Forum | Tue Jan 27 07:13:15 EST 2004 | Rob O
I agree with Erv. That is the same combination we use and it has served us well.
Electronics Forum | Tue Mar 09 17:58:09 EST 2004 | davef
Vijay: Questions are: * Where are the shorts occuring? * Would you please describe your preheat / underside heating methods?
Electronics Forum | Thu Jan 06 08:28:14 EST 2005 | pjc
Preheaters are a bit weak. Don't know if they have improved them lately.
Electronics Forum | Fri Apr 22 11:21:42 EDT 2005 | HUH
There are several types of lasers to do laser soldering. Panasonic also has a high intensity light that can solder as well. I've tried em' all and two over whelming things stand out when it comes to this type of soldering. #1 is preheat. It seems
Electronics Forum | Tue May 17 10:11:54 EDT 2005 | russ
I would use a foam fluxer since spraying rosin will make the stickiest nastiest mess you can imagine. 18 layer board huh? You will want convection preheat, both top and bottom preheaters, preheat tunnel of at least 4-5', a chip wave, laminar flow w
Electronics Forum | Fri Sep 16 14:28:42 EDT 2005 | russ
What is your topside preheat temp? What is the lead to hole ratio for these problem parts? What type of flux?
Electronics Forum | Wed Jul 05 09:00:13 EDT 2006 | russ
Sounds like possibly too little preheat. Russ
Electronics Forum | Mon Jul 17 11:40:20 EDT 2006 | Chunks
It's been a few years, but lack of preheat was my problem with this machine.
Electronics Forum | Fri Dec 01 07:46:41 EST 2006 | davef
Bridging Causes: * Insufficient flux * Excessive pre-heat * High conveyor speed * Solder contamination
