Electronics Forum | Wed Aug 09 11:45:25 EDT 2006 | SWAG
We have an OmniFlo 7, 2000 vintage reflow. We are having conveyor problems. I checked the encoder and speed control board and everything is good per tech. manual operations. We removed the chains a couple months ago and thoroughly soaked/cleaned t
Electronics Forum | Thu Mar 09 20:48:30 EST 2000 | Dave F
Van Hoang: Welcome to SMTnet!!!! Regarding your problems: 1. Cleaning glue: Check the SMTnet archives. For instance, a recent thread was: cleaning glue off of stencils - pr 13:41:43 03/03/2000 2. Bridging on the wave: Bridging on the wave h
Electronics Forum | Thu Mar 09 20:48:30 EST 2000 | Dave F
Van Hoang: Welcome to SMTnet!!!! Regarding your problems: 1. Cleaning glue: Check the SMTnet archives. For instance, a recent thread was: cleaning glue off of stencils - pr 13:41:43 03/03/2000 2. Bridging on the wave: Bridging on the wave h
Electronics Forum | Thu Jul 14 11:52:16 EDT 2005 | davef
Sure you can use SPC charting on the wave setup parameters to warn of impending problems. Examples of useful points of analysis are: * Dwell * Temperature * Pot analysis Certainly there's a range of other process controls that could be monitored.
Electronics Forum | Thu Jun 13 11:24:25 EDT 2002 | davef
Sorry to hear about the Quality Department thing, but we all have our cross to bear, eh? Through an extended period, say 8 hours, understand change of critical controls in the following: * Conveyor speed. * Side to side temperature differences. * Ti
Electronics Forum | Mon Jul 14 15:25:52 EDT 2008 | patrickbruneel
CK, If the contact length with the wave is decreasing when decreasing the conveyer speed and visa versa you need to check the machines electrical or electronics something is very wrong. Contact length is determent by wave design, wave height, convey
Electronics Forum | Thu Apr 05 22:24:32 EDT 2001 | davef
I think your solder mask is a partial cause of your solder balling. Additionally, adjusting some machine set-up parameters may also help. 1 If we were talking about a single assembly problem, we�d be thinking about the laminate, but since you say t
Electronics Forum | Mon Jul 24 02:01:22 EDT 2017 | tsvetan
This will depend on many factors: your reflow oven chamber size, your oven temperature controller, the speed of the conveyor, size and mass of your PCB, etc etc. In practice you should adjust the profile for each case if you want to set in the optim
Electronics Forum | Thu Mar 05 16:54:53 EST 1998 | Brian Stumm @ ETS, LLC
Not sure if you are open to looking at additional vendors but if you are we would love to compete for your business. Go to our web site then call or e-mail me for additional information. Sincerely, Brian Stumm Thermal processing consultant Reflow an
Electronics Forum | Mon Sep 28 14:27:08 EDT 2009 | soudomphong
I need help with conveyor speed in Omni Excel 7. It fluctuate, and never have a steady speed. I swapped the speed control card,calibrated, encoder, and I still have the same problem. Any help would be appreciated, thanks.
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