Electronics Forum | Wed Sep 23 03:43:31 EDT 2009 | d0min0
hello, we are profiling with the pcb each day - results are very good with a small delta we made another test board with TC only in the problem places - same good result we tried 500-600 boards on 12 zone machine - zero defects while on standard 6
Electronics Forum | Mon Nov 05 18:16:39 EST 2018 | slthomas
Curious, why do you say you think it's out of calibration? Is it having problems holding zone heat?
Electronics Forum | Wed Aug 07 16:49:15 EDT 2013 | hegemon
You mean you don't pull all of your thermocouples out of the ovens once a year and send them out for calibration? - lol Tough question. You have a calibrated datalogger. (I assume) You have an oven with preset zone temps, each zone controlled by a
Electronics Forum | Thu Sep 18 11:07:39 EDT 2003 | donbell
SR. Tech: I have worked with Omniflo 7 and 10 ovens for many years. I purchased several 10 zone ovens in '98 when I worked for Ericsson. Here are some of my experinces with Electrovert Omniflo ovens; Yes, you can expect to run the conveyor speed a
Electronics Forum | Tue Apr 05 09:27:49 EDT 2005 | russ
These sound like european machines, From what I can tell so far Lead Free capable ovens just mean that they have hotter heating elements, and blower fans that can take the additional heat supposedly. It does not appear to have anything to do with t
Electronics Forum | Sat Dec 17 16:46:45 EST 2011 | eadthem
Startup current depends on your configuration. ours dose zones 1,2/ 3,4/ 5/ 6,7 last i checked it pulled about 40-55 ish on start up and 25-35 during run. our profile is a slow ramp till 170c then a fast ramp to 285c 280c(last 2 zones). 1707's
Electronics Forum | Mon Nov 25 22:08:05 EST 2002 | Ben
Thanks for the advise. I got the advise from my solder paste vendor to increase the time above melting point for flux outglassing to escape. I tried but no big help. For the moisture issue, actually I've try to bake both the PCB and components at 12
Electronics Forum | Tue Aug 13 10:09:10 EDT 2013 | dyoungquist
We have a Heller 1707EXL that we use for lead and lead-free production. It has both a mesh belt and edge rails. We run 90% of our assemblies on the mesh belt (leaving the edge rails wide open). I have noticed when profiling a board on the mesh bel
Electronics Forum | Wed Nov 09 16:57:05 EST 2011 | tombstonesmt
If we were to apply a thixotropic gel into a keep out area what would the removal process be? We have keep out areas that are later used for mounting purposes so the customer requests no residue in these areas. As I previously stated, we're using mas
Electronics Forum | Sun Aug 19 20:14:57 EDT 2001 | procon
Hi Greg, Have you resolved your problem yet? Daves reply to slow the belt may be your best bet. It appears you are not heating the BGA's uniformily. The temp in zone 6 seems to be a bit odd, are you trying to prolong the soak? If so, try to increase
