Electronics Forum | Mon Sep 10 11:50:40 EDT 2007 | chrisgriffin
I assume your vacuum suction is good. Is this an above mounted board stop sensor? -Make sure it is finding the correct fiducial and not a similar object nearby. -Try physically moving the X-axis to check for backlash. There should be no movement.
Electronics Forum | Mon Oct 08 07:19:56 EDT 2007 | cyber_wolf
Is it common to check your reflow ovens proper operation with a separate system ? We check our ovens weekly with a DataPaq Surveyor. In 10 or so years of Data collection, I have never witnessed this weekly test prove anything of significance. I mea
Electronics Forum | Wed Oct 10 12:01:22 EDT 2007 | russ
you could call DIMA and have them give you a starting recommendation OR get a fab and run it through with a thermocouple and adjust from there. as a start try these. 220 180 180 300 top and bottom belt speed @.4 I do have one of these ovens and t
Electronics Forum | Mon Oct 22 10:47:32 EDT 2007 | cyber_wolf
You absoultely must have a calibration jig. You should be able to justify this on downtime alone. Make sure your take up axles and white rollers are squeeky clean on the 12's. Also make sure that they are not running the cam speed too fast. We do no
Electronics Forum | Wed Oct 24 12:18:33 EDT 2007 | mpolak
I was asking about delta t in profiling, because I have just started to learn how to do it and wanted to know about it. So how can you reduce delta t, so you dont go from cold to hot too fats. Is it enough to slow donw conveyor speed??? Thanks M
Electronics Forum | Fri Nov 02 07:20:43 EDT 2007 | hussman
Why look at buying expensive equipement when you can have your board house multi-up a panel of boards for you. You just saved at least $150,000 American, didn't have to re-evaluate any solder paste, and even opened your process window on your oven.
Electronics Forum | Fri Nov 23 18:17:31 EST 2007 | SMT
Always base your decision based on the need, rather than mearly comparing the specificaiton. The specifications are only indicator and not true performance for a specific application. Mydata and their agilis are good for high mix medium volume produc
Electronics Forum | Mon Nov 26 10:08:56 EST 2007 | kevslatvin
I have been using it and noticed it seems to get runny after it has been out on the stencil awhile. Couple hours or so. At that point we've had some problems with the paste smearing on some fine pitch stuff(0.020"). I sped up my squeegee speed and it
Electronics Forum | Tue Dec 11 16:55:11 EST 2007 | dman97
Hi, I am using a 7 zone Conceptronics oven and Indium 3.1 lead free clean paste. Our profile is as follows, 130 140 150 180 200 240 260 with a belt speed of 36 inches per minute. I dont know if that will help you out though...
Electronics Forum | Mon Jan 21 11:12:20 EST 2008 | davef
Just what is delaminationg during testing? Water washing should be sufficient to clean WS609. On the other hand, it's possible you're conveyor speed is too high to do a good job cleaning the high density areas. What kind of testing have you done to
