Electronics Forum | Thu Feb 28 14:50:02 EST 2008 | tonyamenson
Let me clarify we throw out used paste after a week not the whole jar. Jars get used up every other day or so. We don't really have a procedure for used paste on the do's and don'ts so I'm in the process of creating one to avoid people adding flux t
Electronics Forum | Sat Dec 15 06:34:54 EST 2012 | sowmya
Normally paste manufacturer specifies stencil life of a paste is 10 hours. the question is, if i run a continuous manufacturing for 40 hours, we will be adding 250 g of paste for every two hours. The addition of 250 g will be mixed with the paste whi
Electronics Forum | Wed Jan 30 15:10:09 EST 2013 | hegemon
Restoration of the fluxing properties? Can't see adding a liquid flux to a solder paste (assumed expired shelf life) in order to "restore" anything. If the volatiles in the original paste are gone, then adding more carriers and volatiles will not pr
Electronics Forum | Wed Jan 30 17:23:07 EST 2013 | dyoungquist
In response to hegemon... This is not a recommended practice but..... We have added a few drops of water soluble flux to our water soluble solder paste when the paste is on the stencil. This was after the paste had "dried" out a bit. We have had
Electronics Forum | Wed Jul 15 11:42:24 EDT 2015 | davef
Here’s what you should try: * Go to the “Used SMT Equipment” nav tab [left margin, upper part of this page] * Click “Add Item” button [weird orangy, peachy color button, right side, near top, above thick blue line] * Complete form, making sure that y
Electronics Forum | Wed Apr 13 10:05:58 EDT 2016 | donnie15
I am working on soldering an Large LGA module to a PCB and am having some issues with opens due to variation in the board flatness. I have tried adding more paste but get shorts and excess flux as I get above a 7 mil stencil. I have tried adding sol
Electronics Forum | Wed May 18 13:11:08 EDT 2016 | skyler0121
SMT, I currently work with both 2D and 3D AOI machines. 3D does give you the added benefit of Height on components which does help cut down on some of the over rejects. However, it does still have trouble with some of the same things as the 2D system
Electronics Forum | Fri Feb 28 17:41:49 EST 2020 | slthomas
I have never added anything but bar solder to a solder pot so I have no experience with adding flux cored wire, but I have to imagine that it would smoke like crazy and gum up the sides of your crucible before you ever touched a wire to it. We use
Electronics Forum | Tue Apr 23 17:40:06 EDT 2024 | cyber_wolf
Yes X-outs impact cycle times. Firstly, unless your board house is adding the bad marks you have the added labor of doing it yourself and programming your machines to look for them. Additionally, it adds time to each machine in the line (except for s
Electronics Forum | Mon Sep 25 20:21:46 EDT 2000 | Dave F
Steve: How bout putting it on pie plate, running it through your reflow oven, and then adding it to your wave solder pot?
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