Electronics Forum | Sat Nov 25 21:18:03 EST 2006 | callckq
Dear all, I would like to learn from all regarding purpose of each profile stages, such as preheat, soak, peak cooling. At what stages, flux start to be activated? Thanks for your time,
Electronics Forum | Tue Dec 05 14:23:55 EST 2006 | Todd
I'm not finding 24Vdc at any feeder location?! I checked all pins with the coresponding feeder activated through the I/O and a key in the emergency disconnect. Am I not using the correct procedure to check for my 24V?
Electronics Forum | Fri Dec 22 10:03:54 EST 2006 | realchunks
solder paste [ top side ] Actually it's kinda the norm in most places. Subjects your active components to one less heat cycle.
Electronics Forum | Thu Jan 18 08:31:09 EST 2007 | Jeff
Thanks. I will turn off the machine activated cooling and have the part cool down at room temp (no compressed air cooling). Can you recommend a good paste / tacky flux?
Electronics Forum | Thu Feb 08 14:37:55 EST 2007 | jdengler
Would it be practical to require a verification of the registering e-mail? Send an activation code to the e-mail provided that needs to be entered the first time the account is set-up. Jerry
Electronics Forum | Mon May 21 18:08:33 EDT 2007 | davef
It may not be area of activity of Winslow Automation, but they are in the Bay Area, work in an area not far afield of your need, and likely know someone that can do this type of rework for you.
Electronics Forum | Tue Jul 24 07:57:55 EDT 2007 | davef
It sounds like the QFN component is not solderable. * Use ANSI/J-STD-002, Solderability Tests for Component Leads, Terminations, Lugs, Terminals, and Wires * Contact your QFN component supplier for help * Consider a more active flux, since you might
Electronics Forum | Mon Feb 18 17:27:13 EST 2008 | jdumont
If the hand soldering is done right and you use little to no extra flux (other than whats in the solder wire) you should be ok. You should still verify with some testing however... You need to make sure any flux used is activated, thus rendered benig
Electronics Forum | Mon Feb 18 17:36:32 EST 2008 | kennyg
I should have mentioned... the only flux we use for the hand soldering is wire-core, no bottle flux. I think it should be a non-issue to leave the activated wire core flux residue. I'm just looking for some way to prove it to the designer.
Electronics Forum | Fri Aug 08 14:39:26 EDT 2008 | dmiller
I would have to second the opinion on the water based flux. If you don't want to deal with the solder balls, switch to an alcohol based flux. Unless you have a board that takes a while (water based tends to stay active longer), alcohol is easier to
