Electronics Forum | Mon Jul 26 20:31:59 EDT 2010 | engr
When hand placing SMT components what is the working time before the solder paste become unusable (dry)?
Electronics Forum | Mon Jul 26 20:57:55 EDT 2010 | davef
It depends. Read "Evaluating Solder Paste - not an Option" by Phil Zarrow, ITM Consulting
Electronics Forum | Fri Jun 15 08:47:18 EDT 2007 | ed_faranda
I by all means, am not an expert on Wave processes. But, our second bottom side zone for our wave is down. My boss said "well the flux looks okay, just run it" and won't give me the machine to properly fix. How many people have a problem with thi
Electronics Forum | Tue Mar 05 09:11:11 EST 2019 | slayervv
The conveyor on our Topaz runs for about a second then stops. Turning on conveyor manually does the same thing. While conveyor is turned on manually, disconnecting and reconnecting 208AC at connection board starts the conveyor for a second then it
Electronics Forum | Wed Apr 23 13:33:31 EDT 2003 | davef
We divide our operations, repair, and office facilities into work area classifications, each with its own set of requirements and necessary control to meet the requirements of our procedure. The requirements are in the areas of: * Air Quality * Ligh
Electronics Forum | Wed Apr 23 11:50:42 EDT 2003 | joseluis_amper
Anyone could help me about what it's the best enviroment conditions (humidyti, temperature, antistatics...)for a new emplacement in a new factory? Now, we are moving to a new place, like a very big factory, and I try to adapter the best enviroment co
Electronics Forum | Wed Apr 23 11:58:42 EDT 2003 | russ
If it is a very large factory you are doomed! You will never get the enviroment right someone is always going to be too cold, to hot, to muggy, to loud, I personally like the temp at about 72 F , humidity about 15% (ESD or MSD? which flavor do you w
Electronics Forum | Tue Jul 27 08:03:55 EDT 2010 | scottp
You have to figure this out for yourself for your paste. When I evaluate solder pastes I require good tack, no solder balls, and proper wetting after 4 hours at "reasonable" ambient conditions. I also print boards and put them in a temp/humidity ch
Electronics Forum | Fri Jun 15 12:12:34 EDT 2007 | realchunks
Hi Ed, It all depends on more info needed. How many preheaers do you have in your wave? One, two, three? Are you talking bottom side preheat? What size boards do you run and what type of parts are on it. Typically, preheat does several things; w
Electronics Forum | Fri Jun 15 13:43:48 EDT 2007 | realchunks
I do want to run a profile, but they won't give > up the machine long enough for me to run one. > The boards that we are running through the wave > are large boards, with large caps, and large > transformers on it. We're building highend power
