Electronics Forum | Wed Mar 21 07:44:19 EDT 2012 | cuervo
Hello ! I have a vitronics 500s ( five zones), and the solder paste is ALPHA OM-338-PT lead free. have anyone a profile to start and test, i need some reference temperatures.and conveyor speed thanks !!!
Electronics Forum | Wed Mar 21 20:02:37 EDT 2012 | hegemon
Lead Free in 5 zones is tough sledding. Start with your manufacturers solder reflow profile and calculate your belt speed by looking at the recommended heating time for the solder paste vs. the length of your heated zones. Set your belt speed so tha
Electronics Forum | Tue Jan 13 21:00:15 EST 2004 | davef
This sounds like something the saleman of your new Vitronics oven should be happy to help you sort through. ECD [and probably other profiler supplers] provide software for playing with [optimizing?] recipes. In it, they allow you to select from a v
Electronics Forum | Fri Oct 29 09:45:08 EDT 2004 | pioneertechnology
In 1995 we bought 4 Vitronics U520 reflow ovens with top heat only. We ran these ovens until 2003 for both curing and lead reflow with no problems. In 1998 we bought 1 U520 top and bottom heat and one U820 top and bottom heat and once again we had
Electronics Forum | Wed Jan 04 11:19:30 EST 2006 | DannyJ
Amol, Glad to help. We're experiencing the same thing with a bunch of our customers... Someone reads one paper and they are automatically an expert on the subject... Your 8 zone oven should definitely be more than adequate. Just make sure and pa
Electronics Forum | Wed Jun 21 13:25:44 EDT 2006 | Chunks
Nathan, look into a 7 or 8 zone oven. Depending on your baord size, a 5 zone may get you by. If you do plan to get larger work orders, go big on your oven now. It will pay off in the long run. Plus your window for profiling will be easier.
Electronics Forum | Sun Nov 20 01:27:21 EST 2005 | C. Kolokoy
Try an experiment where you profile the assembly with 3 consecutive boards in the oven spaced just 1" apart versus just 6" apart and then 12" apart. You figure most ovens have about 12 - 16" heating zones, so for your typical 8"x8" PCB, you'd have w
Electronics Forum | Thu Jan 30 07:09:34 EST 2020 | jineshjpr
Hi All, I'm using 8 zone reflow for ROHS 0.2mm Thick PCB soldering, but Micro BGA shows voids more than 25%. Is there anybody can suggest for better solder profile. paste- aim m8, SAC 305, T4, Soaking (150-200) - tried 90s, 60s, 45s; TAL (>217)-
Electronics Forum | Sun Mar 18 23:01:11 EDT 2007 | diesel_1t
Hi there, I want help on the following issue. Where I work, we place a component QFP 256 terminals (20 mil pitch)from hitachi (renesas), we use a MPM UP-3000 screen printer, IP-III placement machine and Vitronics 8 zones reflow Oven. lead plating
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