Electronics Forum | Mon Aug 12 19:35:42 EDT 2002 | sleech
Been there, ... done that,...got the T-shirt. When with a major IC manufacturer, we tried this. IT DIDN'T WORK! The problem was that most convection ovens leak. We could not achieve a significant N2 atmosphere.Eventually went to vacuum-assisted bak
Electronics Forum | Tue Aug 06 08:54:21 EDT 2002 | mike
I have two basic questions: 1. We have a number of small convection ovens and want to modify some of these for baking out parts when needed. We have tried pumping nitrogen into these but I still run between 35 and 50 RH. Has anyone tried converting a
Electronics Forum | Thu Jun 27 23:49:40 EDT 2013 | cedric77
I had a solder paste SAC305 T4, with flux loading of 11.5%. After retrieivng out from fridge(5deg) after 48hrs, the paste turn dry (like dry mud? and after double checking the flux loading it becomes 12.5%. Has anyone ever experience this or any opi
Electronics Forum | Sun Feb 27 13:42:44 EST 2005 | pmdeuel
So true, We had paste flux supplied to us from Alpha metals. It was the same as used in the solder paste. The major problem we noted was the in ability to control the ratio of paste to flux resulting in lots of voids. When we mixed enough to get the
Electronics Forum | Tue Nov 29 19:15:41 EST 2016 | mowens
Thank you, I will see what I can find out.
Electronics Forum | Tue Nov 22 15:21:54 EST 2016 | mowens
Is there some material that can be applied to a bluetooth module to keep wash water out. We need to clean the board, however, this part is not washable. We are running a NC process. Any Ideas?
Electronics Forum | Mon May 07 15:54:22 EDT 2007 | joeherz
If you're looking for something for less than $5-10k, you should consider setting up a point-of-use air drying system. If you can supply fairly dry air from a house system to the point of use dryer, you can acheive humidty levels below 2% easily. W
Electronics Forum | Thu Feb 28 14:27:07 EST 2008 | cyber_wolf
The flux dries out and the paste sticks in the stencil apertures. As the flux dries it also causes the solder to oxidize. Hahaha ! I remember adding flux to paste back in the day to loosen it up. Do not do it ! I have been told by reputable industry
Electronics Forum | Fri Feb 29 07:32:43 EST 2008 | samitokgoz
We have the same problem... We are using water soluable solder paste (Alpha ws609) and it dries out very quick. I don't want to throw out the paste inside the printer, but on the other and I don't want to risk my production by adding flux or alchol o
Electronics Forum | Thu Feb 28 14:32:13 EST 2008 | cyber_wolf
Let me re-state the last part.... The throwing out part is paste dependent.
