Electronics Forum | Wed Apr 12 21:04:10 EDT 2000 | Dave F
Ashok: You still didn�t tell me why you want additional drying of your boards, but what the hey, we all have our dark secrets. Anywho, let�s consider some options for reducing the moisture of your cleaned boards: OPTION 1 - Up-Grading Your Cleaner
Electronics Forum | Fri Jul 24 07:56:40 EDT 2009 | thanhnguyen
hello all I have a Assembleon Topaz. at head # 2 everytime it going down to pick up the part, it just blowing the part off from feeder, i did replace vacuum vale but still doing the same. any input is helpful. thanks
Electronics Forum | Tue Jul 28 09:29:48 EDT 2009 | christian01976
Hello! Did you test the blow off function manually with the input/output monitor? Mayba there is the wrong plug at the valve...
Electronics Forum | Wed Jul 29 07:02:50 EDT 2009 | thanhnguyen
yes i did test it manually, and it working fine.At the plug in, that the only way to plug it. With my ohm meter,24 volt present when you turn it on. The wierd thing is it blowing during head going down,then will sucking up when it move up.Vacuum valv
Electronics Forum | Wed Jul 29 08:38:26 EDT 2009 | duchoang
I am not sure about Topaz, but with Topaz XII, that problem could be the filter clogged, too dirty or installed improperly.
Electronics Forum | Fri Jul 31 17:09:55 EDT 2009 | isd_jwendell
Don't know about Topaz, but on Essemtec machine using SMC ejector, there are separate solenoid valves for vacuum and release. The connectors are identical and side by side. If these connectors were swapped then I would have the symptoms you describe.
Electronics Forum | Tue Apr 11 17:45:02 EDT 2000 | Ashok Dhawan
I am looking for an appropriate method to dry wave soldered boards. While board assemblies are passed through board cleaning station , they are not fully dry . We do not want to heat above 180 deg F to dry them completely. We think that air drying u
Electronics Forum | Tue Apr 11 20:23:19 EDT 2000 | Dave F
Ashok: You're still goin' down that ol' ESD road aren't ya bud? Why do you need the boards to be dry? Conformal coating? Hey wait a minute, are you one of those no-clean people? Er zis related to the Kapton tape res fandango? Anywho, be careful
Electronics Forum | Wed Apr 27 09:31:45 EDT 2011 | blnorman
In a different life, we switched to water based flux on one product line. With a little tweaking, process worked fine and our VOC emissions dropped. We tried to roll it out on another product and it never worked. The first side on this product had
Electronics Forum | Mon Jun 14 11:44:10 EDT 1999 | Vince Gedgaudas
Has anyone had issues where bottomside double reflowed smt has fallen off in the wave when using voc-free flux? I have verified the hotter profile was not the issue by using an alcohol based flux with no problems.This voc-free flux is also not causin
.gif)
winsouce.jpg)
