Electronics Forum | Mon Apr 25 02:25:32 EDT 2005 | Mike Konrad
The issue of using ultrasonic technology for post reflow de-fluxing presents challenges in two categories: Controversial: Although there are recent studies that indicate acceptance with ultrasonic technology on populated assemblies, there remains si
Electronics Forum | Tue Feb 01 21:48:12 EST 2000 | Dave F
Guo: You want to know: 1 Can I use water as the solvent in an ultrasonic machine to remove solder paste from PCB? Continuing from Jason�s comments: Sure you can use water as the solvent to remove solder paste from PCB, but recognize that some flu
Electronics Forum | Tue Feb 01 14:03:16 EST 2000 | Bill Schreiber
When cleaning water washable flux from PCBs using U/S, the final rinse can be with spray DI water for aesthetic purposes because the wash cycle is really just a long U/S rinse (no added chemistry). Fresh DI water should be continuously added to fresh
Electronics Forum | Tue Jan 31 13:20:15 EST 2006 | mgdrouin1
Does anyone have any information regarding damaged caused to components due to overheating primarily with a heatgun? I'm having a hard time getting engineering to comply. Thanks
Electronics Forum | Tue Jan 31 13:22:15 EST 2006 | mgdrouin1
Does anyone have any information regarding damaged caused to components due to overheating primarily with a heatgun? I'm having a hard time getting engineering to comply. Thanks
Electronics Forum | Tue Jan 31 13:41:12 EST 2006 | outgasser
We are currently experiencing problems with delamination during rework/2nd op activity on lead free. I am suspecting this is a result of the use of a heat gun to rework components. My assumption is that the high heat and time in area greatly increa
Electronics Forum | Tue Jan 31 14:30:38 EST 2006 | Chunks
There is none, since we don't know your part or temp being used. A heat gun CAN be used to remove parts with no damage, if its controled. You need to look up your part on the manufacturers web site, find the process data (time/temp)the part is desi
Electronics Forum | Tue Jan 31 14:14:03 EST 2006 | samir
Ah, yes. The age-old battle of Production Supervision versus Process Engineering. I guess you just need to tell your Process Engineer, "Pretty please with sugar on top, investigate this f*cking issue."
Electronics Forum | Wed Feb 01 08:18:28 EST 2006 | slaine
RS sell a heat cun that is fully temperature adjustable buy one of them and pre set it to the right temp then put a calibration sticker over the control.
Electronics Forum | Tue Jan 31 15:15:13 EST 2006 | russ
Heat guns used improperly will definitely damage components. You must have a controlled heat gun that can be set to the max temp you want pb =215C max, Pbfree maybe 240C max. This heat gun must not be able to be adjusted or you must have total trus
