Electronics Forum | Wed Apr 06 06:25:56 EDT 2022 | bukas
I had the same looking coating on solder joints when we used rosin in IPA. after switching to water based no clean it never happened again.
Electronics Forum | Wed Apr 06 11:17:02 EDT 2022 | proceng1
Because it was recommended by the machine manufacturer. Sup 75 is also very corrosive. It basically ruins any tools that touch it if they aren't cleaned properly. I am ordering some of that powder to try.
Electronics Forum | Tue Apr 05 12:32:16 EDT 2022 | proceng1
Here are the nozzles that soaked, but didn't get tinned. Since the solder joints also had yellow, I am wondering if the contamination is lingering in the solder pot, and getting on the joints. The Superior is never applied to a board. In the board
Electronics Forum | Thu Mar 20 09:01:33 EDT 2008 | meritajs
Thanks Greg Our main problem is that we are putting small number PCB through, about300 PCB, size180*250. Such number order our customer in week. In result we got such high solder consumption and high production cost. We will tray to use antiacidant.
Electronics Forum | Fri Mar 21 08:39:38 EDT 2008 | lococost
If you are saying you're going through 1kg/h while only producing 300 pcbs a week and the rest of the time the machine is standing still, then 1.there is something seriously wrong with your machine or 2. check if an operator is suddenly covered in sh
Electronics Forum | Tue Apr 05 20:45:36 EDT 2022 | stephendo
Try adipic acid to clean your nozzles. It is a powder and can be awkward to work with as a result. But you might end up preferring it. Also look where the substance is not. There are two PTH joints without it. And that chip cap is closer to the PT
Electronics Forum | Wed Apr 06 15:32:11 EDT 2022 | proceng1
I spoke with a Tech at Superior Flux. He confirmed that Superior 515 will absoluteley turn yellow at room temp. Hydrobromic Acid in the flux, as it binds the hydrogen gases off and the bromine turns yellow. What is weird, is that Tin Bromide is y
Electronics Forum | Tue Apr 05 12:31:05 EDT 2022 | proceng1
A while back, we had a yellow coating showing up on some solder joints at Selective Solder (LEAD alloy). I contacted the company for our machine and he looked into it. One change we had made not too long before is we switched from Superior 75 to Sup
Electronics Forum | Tue Mar 18 05:32:09 EDT 2008 | gregoryyork
What volume of boards are you putting through. 1Kg per hour does sound very high but then again it does depend on volume Using an antioxidant is a must with Lead Free some alloys have additions in them to start with but those drop out with use so th
Electronics Forum | Tue Mar 08 11:50:55 EST 2011 | pgoodyear
As a technician that does frequent board level repair / rework some issues have come to mind. I have been an electronics technician for almost 50 years. In that time I have seen the evolution of electronics from point to point wiring using vacuum
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